Biggest changeA summary of granted composition of matter and/or methods of use patents that we own, which cover our technology platform, VYJUVEK, and our product candidates in the United States and elsewhere, is provided below. 17 Our Technology Platform Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,441,614 United States Composition of Matter & Methods of Use – Delivery platform for targeted therapeutics, as well as methods of its use for delivering any effector to the skin 12/28/2036 Krystal U.S. 11,185,564 United States Methods of Use – Methods of use of replication-defective HSV vectors for delivering any effector to skin-targeted therapeutics 12/28/2036 Krystal U.S. 11,865,148 United States Methods of Use – Methods of use of replication-defective HSV-1 for delivering any effector to the eye 12/28/2036 Krystal JP 7,480,105 Japan Composition of Matter & Uses Thereof – Delivery platform for targeted therapeutics, as well as uses thereof, including for delivery of any effector to the skin 12/28/2036 Krystal AU 2019280069 Australia Composition of Matter & Methods of Use – Delivery platform for targeted therapeutics, as well as methods of its use for delivering any effector to the skin 12/28/2036 Krystal VYJUVEK / B-VEC Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 9,877,990 United States Composition of Matter & Methods of Use – Compositions comprising HSV vectors encoding certain effectors, including the effector encoded in B-VEC, and methods of using the same for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal U.S. 10,155,016 United States C omposition of Matter – Covers compositions containing B-VEC, formulated for alternate routes of administration 12/28/2036 Krystal EP 3,377,637 Europe C omposition of Matter – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal JP 6,970,086 Japan C omposition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal AU 2016401692 Australia C omposition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal CL 69.593 Chile Composition of Matter & Uses Thereof – Compositions comprising replication-defective HSV vectors encoding certain effectors, including the effector encoded in B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal 18 Patent Number Country / Region * Patent Type Expiration Date ** Owner IN 498868 India Composition of Matter – Compositions comprising replication-defective HSV vectors encoding certain effectors, including the effector encoded in B-VEC 12/28/2036 Krystal MX 394867 Mexico C omposition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal NZ New Zealand Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal SG 11201808314Q Singapore Composition of Matter & Uses Thereof – Compositions comprising replication-defective HSV vectors encoding certain effectors, including the effector encoded in B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal Respiratory KB407 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,829,529 United States Methods of Use – Methods of using KB407 for the treatment of cystic fibrosis and other disease causing progressive lung destruction 2/7/2040 Krystal ZA 2022/05420 South Africa Methods of Use – Methods of using KB407 for the treatment of cystic fibrosis and other disease causing progressive lung destruction 2/7/2040 Krystal Oncology KB707 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 11,779,660 United States Composition of Matter – Pharmaceutical compositions comprising HSV vectors encoding IL-2 and IL-12 4/14/2042 Krystal U.S. 11,918,660 United States Composition of Matter – Pharmaceutical compositions comprising HSV-1 vectors encoding IL-2 and IL-12 4/14/2042 Krystal Dermatology KB105 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,525,090 United States C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising herpes virus vectors encoding TGM1, as well as methods of providing prophylactic, palliative, or therapeutic relief to TGM1-deficient ARCI subjects 4/11/2039 Krystal 19 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 11,717,547 United States C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising replication-defective HSV-1 vectors encoding TGM, as well as methods of delivering TGM to cells 4/11/2039 Krystal AU 2019252658 Australia C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising herpes virus vectors encoding TGM1, as well as methods of providing prophylactic, palliative, or therapeutic relief to TGM1-deficient ARCI subjects 4/11/2039 Krystal AU 2023222939 Australia Composition of Matter & Methods of Use – Pharmaceutical compositions comprising replication-defective HSV-1 vectors encoding TGM, as well as methods of delivering TGM to cells 4/11/2039 Krystal Other Dermatology Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 11,642,384 United States Composition of Matter – Pharmaceutical compositions comprising eplication-defective HSV vectors encoding SPINK5 9/24/2039 Krystal JP 7,562,515 Japan Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising herpes virus vectors encoding SPINK, as well as uses thereof, including for providing prophylactic, palliative, or therapeutic relief of one or more signs or symptoms of Netherton Syndrome and/or atopic dermatitis 9/24/2039 Krystal AU 2019346549 Australia Compositions of Matter - Pharmaceutical compositions comprising replication-defective HSV vectors encoding SPINK5 9/24/2039 Krystal JP 7,560,449 Japan Composition of Matter & Uses Thereof – Herpes virus vectors and pharmaceutical compositions encoding laminin, as well as uses thereof, including for treating one or more signs or symptoms of Junctional Epidermolysis Bullosa 9/25/2039 Krystal 20 Aesthetics KB301 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,786,438 United States C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as methods of their use for improving skin condition, quality, and/or appearance 4/26/2039 Krystal U.S. 12,128,122 United States Composition of Matter & Methods of Use –Compositions comprising replication-defective HSV-1 vectors encoding one or more cosmetic proteins, as well as methods of their use for improving skin condition, quality, and/or appearance, and for treating one or more signs or symptoms of dermatological aging 4/26/2039 Krystal JP 7,602,999 Japan Compositions of Matter & Uses Thereof – Cosmetic compositions comprising herpes virus vectors encoding one or more cosmetic proteins, as well as uses thereof, including for improving skin condition, quality, and/or appearance 4/26/2039 Krystal AU 2019260757 Australia C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as methods of their use for improving skin condition, quality, and/or appearance 4/26/2039 Krystal ZA 2023/06237 South Africa Composition of Matter & Uses thereof – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as uses thereof, including for improving skin condition, quality, and/or appearance 4/26/2039 Krystal * Granted patents in the U.S. and elsewhere are shown.
Biggest changeOur Technology Platform Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,441,614 United States Composition of Matter & Methods of Use – Delivery platform for targeted therapeutics, as well as methods of its use for delivering any effector to the skin 12/28/2036 Krystal U.S. 11,185,564 United States Methods of Use – Methods of use of replication-defective HSV vectors for delivering any effector to skin-targeted therapeutics 12/28/2036 Krystal 19 U.S. 11,865,148 United States Methods of Use – Methods of use of replication-defective HSV-1 for delivering any effector to the eye 12/28/2036 Krystal JP 7,480,105 Japan Composition of Matter & Uses Thereof – Delivery platform for targeted therapeutics, as well as uses thereof, including for delivery of any effector to the skin 12/28/2036 Krystal AU 2019280069 Australia Composition of Matter & Methods of Use – Delivery platform for targeted therapeutics, as well as methods of its use for delivering any effector to the skin 12/28/2036 Krystal AU 2022204729 Australia Methods of Use – Methods of use of replication-defective HSV vectors for delivering any effector to skin-targeted therapeutics 12/28/2036 Krystal AU 2025200334 Australia Composition of Matter & Methods of Use – Delivery platform for targeted therapeutics, as well as methods of its use for delivering any effector to the skin 12/28/2036 Krystal NZ 778381 New Zealand Composition of Matter & Uses Thereof – Delivery platform for targeted therapeutics, as well as uses thereof, including for delivery of any effector to the skin 12/28/2036 Krystal NZ 783621 New Zealand Composition of Matter & Uses Thereof – Delivery platform for targeted therapeutics, as well as uses thereof, including for delivery of any effector to the skin 12/28/2036 Krystal VYJUVEK / B-VEC Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 9,877,990 United States Composition of Matter & Methods of Use – Compositions comprising HSV vectors encoding certain effectors, including the effector encoded in B-VEC, and methods of using the same for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal U.S. 10,155,016 United States C omposition of Matter – Covers compositions containing B-VEC, formulated for alternate routes of administration 12/28/2036 Krystal EP 3,377,637 Europe C omposition of Matter – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal JP 6,970,086 Japan C omposition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal AU 2016401692 Australia C omposition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal 20 Patent Number Country / Region * Patent Type Expiration Date ** Owner CL 69.593 Chile Composition of Matter & Uses Thereof – Compositions comprising replication-defective HSV vectors encoding certain effectors, including the effector encoded in B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal CL 70.567 Chile Composition of Matter & Uses Thereof – Compositions comprising HSV vectors encoding certain effectors, including the effector encoded in B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal IN 498868 India Composition of Matter – Compositions comprising replication-defective HSV vectors encoding certain effectors, including the effector encoded in B-VEC 12/28/2036 Krystal MX 394867 Mexico C omposition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal NZ 746213 New Zealand Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal SG 11201808314Q Singapore Composition of Matter & Uses Thereof – Compositions comprising replication-defective HSV vectors encoding certain effectors, including the effector encoded in B-VEC, as well as uses thereof, including for providing prophylactic, palliative or therapeutic relief of a wound, disorder or disease of the skin 12/28/2036 Krystal 21 Respiratory KB407 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,829,529 United States Methods of Use – Methods of using herpes virus vectors encoding CFTR for the treatment of cystic fibrosis and other disease causing progressive lung destruction 2/7/2040 Krystal U.S. 12,522,636 United States Composition of Matter – Pharmaceutical compositions comprising replication-defective HSV-1 vectors encoding CFTR 2/7/2040 Krystal AU 2020219343 Australia Composition of Matter & Uses Thereo f – Pharmaceutical compositions comprising herpes virus vectors encoding CFTR, as well as uses thereof, including for the treatment of cystic fibrosis and other disease causing progressive lung destruction 2/7/2040 Krystal CO 44406 Colombia Composition of Matter – Pharmaceutical compositions comprising replication-defective HSV-1 vectors encoding CFTR 2/7/2040 Krystal NZ 778665 New Zealand Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising herpes virus vectors encoding CFTR, as well as uses thereof, including for the treatment of cystic fibrosis and other disease causing progressive lung destruction 2/7/2040 Krystal ZA 2022/05420 South Africa Methods of Use – Methods of using herpes virus vectors encoding CFTR for the treatment of cystic fibrosis and other disease causing progressive lung destruction 2/7/2040 Krystal KB408 Patent Number Country / Region * Patent Type Expiration Date ** Owner JP 7,773,468 Japan Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising HSV vectors encoding certain effectors, including the effector encoded in KB408, and methods of using the same for treating a disease affecting the airways and/or lungs 51488 Krystal Oncology KB707 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 11,779,660 United States Composition of Matter – Pharmaceutical compositions comprising HSV vectors encoding IL-2 and IL-12 4/14/2042 Krystal U.S. 11,918,660 United States Composition of Matter – Pharmaceutical compositions comprising HSV-1 vectors encoding IL-2 and IL-12 4/14/2042 Krystal U.S. 12,364,775 United States Methods of Use - Methods of use of HSV vectors encoding IL-2 and IL-12 for providing therapeutic relief of one or more signs or symptoms of lung cancer 4/1/2042 Krystal 22 ZA 2025/02822 South Africa Composition of Matter – Pharmaceutical compositions comprising HSV vectors encoding IL-2 and IL-12 4/1/2042 Krystal ZA 2025/02821 South Africa Composition of Matter – Pharmaceutical compositions comprising HSV-1 vectors encoding IL-2 and IL-12 4/1/2042 Krystal Dermatology Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,525,090 United States C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising herpes virus vectors encoding TGM1, as well as methods of providing prophylactic, palliative, or therapeutic relief to TGM1-deficient ARCI subjects 4/11/2039 Krystal U.S. 11,717,547 United States C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising replication-defective HSV-1 vectors encoding TGM, as well as methods of delivering TGM to cells 4/11/2039 Krystal AU 2019252658 Australia C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising herpes virus vectors encoding TGM1, as well as methods of providing prophylactic, palliative, or therapeutic relief to TGM1-deficient ARCI subjects 4/11/2039 Krystal AU 2023222939 Australia Composition of Matter & Methods of Use – Pharmaceutical compositions comprising replication-defective HSV-1 vectors encoding TGM, as well as methods of delivering TGM to cells 4/11/2039 Krystal U.S. 11,642,384 United States Composition of Matter – Pharmaceutical compositions comprising eplication-defective HSV vectors encoding SPINK5 9/24/2039 Krystal JP 7,562,515 Japan Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising herpes virus vectors encoding SPINK, as well as uses thereof, including for providing prophylactic, palliative, or therapeutic relief of one or more signs or symptoms of Netherton Syndrome and/or atopic dermatitis 9/24/2039 Krystal AU 2019346549 Australia Compositions of Matter - Pharmaceutical compositions comprising replication-defective HSV vectors encoding SPINK5 9/24/2039 Krystal JP 7,560,449 Japan Composition of Matter & Uses Thereof – Herpes virus vectors and pharmaceutical compositions encoding laminin, as well as uses thereof, including for treating one or more signs or symptoms of Junctional Epidermolysis Bullosa 9/25/2039 Krystal Antibody 23 Patent Number Country / Region * Patent Type Expiration Date ** Owner JP 7,749,055 Japan Composition of Matter & Uses Thereof – Pharmaceutical compositions comprising replication-defective HSV vectors encoding one or more antibodies, and methods of using the same for treating a disease 6/28/2039 Krystal Aesthetics KB301 Patent Number Country / Region * Patent Type Expiration Date ** Owner U.S. 10,786,438 United States C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as methods of their use for improving skin condition, quality, and/or appearance 4/26/2039 Krystal U.S. 12,128,122 United States Composition of Matter & Methods of Use –Compositions comprising replication-defective HSV-1 vectors encoding one or more cosmetic proteins, as well as methods of their use for improving skin condition, quality, and/or appearance, and for treating one or more signs or symptoms of dermatological aging 4/26/2039 Krystal JP 7,602,999 Japan Compositions of Matter & Uses Thereof – Cosmetic compositions comprising herpes virus vectors encoding one or more cosmetic proteins, as well as uses thereof, including for improving skin condition, quality, and/or appearance 4/26/2039 Krystal AU 2019260757 Australia C omposition of Matter & Methods of Use – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as methods of their use for improving skin condition, quality, and/or appearance 4/26/2039 Krystal NZ 769822 New Zealand Composition of Matter –Compositions comprising HSV vectors encoding one or more cosmetic proteins 4/26/2039 Krystal ZA 2023/06237 South Africa Composition of Matter & Uses thereof – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as uses thereof, including for improving skin condition, quality, and/or appearance 4/26/2039 Krystal ZA 2025/01799 South Africa Composition of Matter & Uses thereof – Pharmaceutical compositions comprising HSV vectors encoding one or more cosmetic proteins, as well as uses thereof, including for improving skin condition, quality, and/or appearance 4/26/2039 Krystal * Granted patents in the U.S. and elsewhere are shown.
Over 50% of patients with recessive form of DEB and an estimated 10% of patients with the dominant form of DEB are thought to suffer from ocular complications. Correspondingly, we believe there are over 750 patients in the United States and over 2,000 worldwide that are affected.
Over 50% of patients with the recessive form of DEB and an estimated 10% of patients with the dominant form of DEB are thought to suffer from ocular complications. Correspondingly, we believe there are over 750 patients in the United States and over 2,000 worldwide that are affected.
Low AAT serum levels can result in life threatening, progressive pulmonary impairment and severe respiratory insufficiency, manifesting as chronic obstructive pulmonary disease and panacinar emphysema. The lung degeneration observed in AATD patients derives from an unopposed, and therefore enhanced, neutrophil elastase (“NE”) activity, leading to an excessive degradation of elastin, collagen, and fibronectin.
Low AAT serum levels can result in life threatening, progressive pulmonary impairment and severe respiratory insufficiency, manifesting as chronic obstructive pulmonary disease and panacinar emphysema. The lung degeneration observed in AATD patients derives from unopposed, and therefore enhanced, neutrophil elastase (“NE”) activity, leading to an excessive degradation of elastin, collagen, and fibronectin.
Patients included in the efficacy analysis were heavily pre-treated with four median lines of prior therapy and all had received at least one line of prior immunotherapy. In this NSCLC patient analysis cohort, as of data cut-off, an ORR of 27%, with three partial responses, was achieved.
Patients included in the efficacy analysis were heavily pre-treated with four median lines of prior therapy and all had received at least one line of prior immunotherapy. In this NSCLC patient cohort, as of data cut-off, an ORR of 27%, with three partial responses, was achieved.
Once the CTA request is approved in accordance with the EU and the EU Member State’s requirements, clinical trial development may proceed. The requirements and processes governing the conduct of clinical trials, product licensing, pricing and reimbursement vary from country to country.
Once the CTA request is approved in accordance with the EU and the EU Member State’s requirements, clinical trial development may proceed. The requirements and processes governing the conduct of clinical trials, product licensing, pricing and reimbursement in the EU vary from country to country.
These can be generally classified into four broad categories: • Gene Silencing Approaches: We are aware of two companies, Takeda Pharmaceutical Company Limited (in partnership with Arrowhead Pharmaceutical Inc.) and Novo Nordisk A/S (in partnership with Alnylam Pharmaceuticals, Inc.), which are developing interfering RNA medicines to treat the liver manifestations of AATD. • Alternate Augmentation Approaches: We are aware of companies, such as Kamada Ltd. and Sanofi S.A., which are developing new augmentation treatments with modified frequency or routes of administration to treat the lung manifestations of AATD. • Direct Protease Inhibition: We are aware of companies, such as Peak Bio, Inc. and Mereo BioPharma Group plc, which are developing protease inhibitors to treat the lung manifestations of AATD. • Gene Editing Approaches: We are aware of companies, such as Wave Life Sciences Ltd. and Beam Therapeutics Inc., which are developing gene editing therapies inhibitors to treat both the lung and liver manifestations of AATD.
These can be generally classified into four broad categories: • Gene Silencing Approaches: We are aware of two companies, Takeda Pharmaceutical Company Limited (in partnership with Arrowhead Pharmaceutical Inc.) and Novo Nordisk A/S (in partnership with Alnylam Pharmaceuticals, Inc.), which are developing interfering RNA medicines to treat the liver manifestations of AATD. • Alternate Augmentation Approaches: We are aware of companies, such as Kamada Ltd. and Sanofi S.A., which are developing new augmentation treatments with modified frequency or routes of administration to treat the lung manifestations of AATD. • Direct Protease Inhibition: We are aware of companies, such as Peak Bio, Inc. and Mereo BioPharma Group plc, which are developing protease inhibitors to treat the lung manifestations of AATD. 17 • Gene Editing Approaches: We are aware of companies, such as Wave Life Sciences Ltd. and Beam Therapeutics Inc., which are developing gene editing therapies inhibitors to treat both the lung and liver manifestations of AATD.
If a product with orphan status receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to orphan product exclusivity, meaning that the FDA may not approve any other applications to market the same drug or biologic product for the same indication for seven years, except in limited circumstances, such as a showing of clinical superiority to the product with orphan exclusivity or if the party holding the exclusivity fails to assure the availability of sufficient quantities of the drug to meet the needs of patients with the disease or condition for which the drug was designated.
If a product with orphan status receives the first FDA approval for the disease or condition for which it has such designation, the product is entitled to orphan product exclusivity, meaning that the FDA may not approve any other applications to market the same drug or biologic product for the same indication for seven years, except in limited circumstances, such as a showing of clinical superiority to the product with orphan exclusivity or if the party holding the exclusivity fails to assure the availability of sufficient quantities of the drug to meet the needs of patients with the disease or condition for which the drug was 28 designated.
The IRA includes several provisions to lower prescription drug costs for people with Medicare and reduce drug spending by the federal government, including allowing Medicare to negotiate prices for certain prescription drugs, requiring drug manufacturers to pay a rebate to the federal government if prices for single-source drugs and biologicals covered under Medicare Part B and nearly all covered drugs under Part D increase faster than the rate of inflation (CPI-U), and limiting out of pocket spending for Medicare Part D enrollees.
The IRA includes several provisions to lower prescription drug costs for 31 people with Medicare and reduce drug spending by the federal government, including allowing Medicare to negotiate prices for certain prescription drugs, requiring drug manufacturers to pay a rebate to the federal government if prices for single-source drugs and biologicals covered under Medicare Part B and nearly all covered drugs under Part D increase faster than the rate of inflation (CPI-U), and limiting out of pocket spending for Medicare Part D enrollees.
Human clinical trials typically are conducted in three sequential phases that may overlap or be combined: • Phase 1. The biologic product candidate initially is introduced into a small number of healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution and excretion and, if possible, to gain an early understanding of its effectiveness.
Human clinical trials typically are conducted in three sequential phases that may overlap or be combined: 26 • Phase 1. The biologic product candidate initially is introduced into a small number of healthy human subjects and tested for safety, dosage tolerance, absorption, metabolism, distribution and excretion and, if possible, to gain an early understanding of its effectiveness.
We have made significant investments in developing the most comprehensive and optimized manufacturing process for VYJUVEK and our vector product candidates, including: • A proprietary vector manufacturing technique and a series of high-efficiency purification processes that produce highly purified therapeutic vectors and can be adapted for each product candidate; and • A critical list of CGMP assays to accurately characterize our process and the HSV-1 vectors we produce.
We have made significant investments in developing the most comprehensive and optimized manufacturing process for VYJUVEK and our product candidates, including: • A proprietary vector manufacturing technique and a series of high-efficiency purification processes that produce highly purified therapeutic vectors and can be adapted for each product candidate; and • A critical list of CGMP assays to accurately characterize our process and the HSV-1-based vectors we produce.
Our process requires three critical components: • Production of a master virus seed stock (“MVSS”); • Production of complementing master cell bank (“MCB”); and • Optimized transduction parameters. 14 For VYJUVEK and each of our product candidates, we generate a MVSS which is scaled up from a single purified clone of the modified HSV-1 vector expressing the therapeutic effector.
Our process requires three critical components: • Production of a master virus seed stock (“MVSS”); • Production of complementing master cell bank (“MCB”); and • Optimized transduction parameters. For VYJUVEK and each of our product candidates, we generate a MVSS which is scaled up from a single purified clone of the modified HSV-1 vector expressing the therapeutic effector.
Demand is expected to grow driven by increasing aesthetic injectable adoption in emerging markets and shifting consumer attitudes about wellness, beauty, and healthy aging that have increased awareness and acceptance of aesthetic treatments among new consumer segments. One area of the skin that can experience early aging is the female décolleté (upper chest).
This demand is expected to grow driven by increasing aesthetic injectable adoption in emerging markets and shifting consumer attitudes about wellness, beauty, and healthy aging that have increased awareness and acceptance of aesthetic treatments among new consumer segments. One area of the skin that can experience early aging is the female décolleté (upper chest).
We are aware of several preclinical or early clinical stage nucleic-acid-based programs for treatment of this patient population including Vertex Pharmaceuticals Inc., ReCode Therapeutics, Inc., Spirovant Sciences, Inc., and 4D Molecular Therapeutics, Inc. Alpha-1 Antitrypsin Deficiency Currently approved treatments for AATD consist of IV administered AAT augmentation therapy, administered weekly.
We are aware of several preclinical or early clinical stage nucleic-acid-based programs for treatment of this patient population including programs at Vertex Pharmaceuticals Inc., ReCode Therapeutics, Inc., Spirovant Sciences, Inc., and 4D Molecular Therapeutics, Inc. Alpha-1 Antitrypsin Deficiency Currently approved treatments for AATD consist of IV administered AAT augmentation therapy, administered weekly.
The process required by the FDA before a biologic product candidate may be marketed in the United States generally involves the following: • completion of preclinical laboratory tests and in vivo studies in accordance with the FDA’s Current Good Laboratory Practice (“CGLP”), regulations and applicable requirements for the humane use of laboratory animals or other applicable regulations; • submission to the FDA of an IND application, which allows human clinical trials to begin unless FDA objects within 30 days; • approval by each clinical trial site’s Institutional Review Board (“IRB”) and, if applicable, Institutional Biosafety Committee (“IBC”), before the clinical trial may be initiated; • performance of adequate and well-controlled human clinical trials according to the FDA’s Current Good Clinical Practice (“CGCP”) regulations and any additional requirements for the protection of human research subjects and their health information, to establish the safety and efficacy of the proposed biologic product candidate for its intended use; • preparation and submission to the FDA of an application for marketing approval that includes substantial evidence of safety, purity and potency from results of nonclinical testing and clinical trials; • review of the product by an FDA advisory committee, if applicable; • satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the biologic product candidate is produced to assess compliance with Current Good Manufacturing Practice (“CGMP”) requirements and to assure that the facilities, methods and controls are adequate to preserve the biologic product candidate’s identity, safety, strength, quality, potency and purity; • potential FDA audit of the nonclinical and clinical trial sites that generated the data in support of the application; and • payment of user fees and FDA review and marketing authorization.
The process required by the FDA before a biologic product candidate may be marketed in the United States generally involves the following: • completion of preclinical laboratory tests and in vivo studies in accordance with the FDA’s Current Good Laboratory Practice (“CGLP”), regulations and applicable requirements for the humane use of laboratory animals or other applicable regulations; • submission to the FDA of an IND application, which allows human clinical trials to begin unless the FDA objects within 30 days; • approval by each clinical trial site’s Institutional Review Board (“IRB”) and, if applicable, Institutional Biosafety Committee (“IBC”), before the clinical trial may be initiated; • performance of adequate and well-controlled human clinical trials according to the FDA’s Current Good Clinical Practice (“CGCP”) regulations and any additional requirements for the protection of human research subjects and their health information, to establish the safety and efficacy of the proposed biologic product candidate for its intended use; • preparation and submission to the FDA of an application for marketing approval that includes substantial evidence of safety, purity and potency from results of nonclinical testing and clinical trials; • review of the product by an FDA advisory committee, if applicable; 25 • satisfactory completion of an FDA inspection of the manufacturing facility or facilities where the biologic product candidate is produced to assess compliance with CGMP requirements and to assure that the facilities, methods and controls are adequate to preserve the biologic product candidate’s identity, safety, strength, quality, potency and purity; • potential FDA audit of the nonclinical and clinical trial sites that generated the data in support of the application; and • payment of user fees and FDA review and marketing authorization.
The greater payload capacity of our vector and the high transduction efficiencies achieved allow us to deliver a 4 full gene (or genes) directly to any patient’s tissues for off-the-shelf, in vivo gene expression without additional manipulation. • Direct Delivery : Our engineered HSV-1 vector allows for noninvasive or minimally invasive local gene delivery.
The greater payload capacity of our vector and the high transduction efficiencies achieved allow us to deliver a full gene (or genes) directly to any patient’s tissues for off-the-shelf, in vivo gene expression without additional manipulation. • Direct Delivery : Our engineered HSV-1 vector allows for noninvasive or minimally invasive local gene delivery.
The primary objective of the study is to evaluate safety and tolerability of KB707 delivered via 10 inhalation, alone or in combination. Efficacy is also being assessed by multiple measures, including objective response rate (“ORR”), as are the immune effects of KB707 monotherapy. The first patient in KYANITE-1 was dosed in April 2024.
The primary objective of the study is to evaluate safety and tolerability of KB707 delivered via inhalation, alone or in combination. Efficacy is also being assessed by multiple measures, including objective response rate (“ORR”), as are the immune effects of KB707 monotherapy. The first patient in KYANITE-1 was dosed in April 2024.
The FDA may refer applications for novel biologic products or biologic products that present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for review, evaluation and a recommendation as to whether the application should be approved and under what conditions.
The FDA may refer applications for novel biologic products or biologic products that present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians 27 and other experts, for review, evaluation and a recommendation as to whether the application should be approved and under what conditions.
Therapies designated as breakthrough therapies by the FDA may also be eligible for priority review and accelerated approval. Regenerative Medicine Advanced Therapy (“RMAT”) Designation 25 Established under the 21st Century Cures Act, RMAT designation is a program designed to expedite the development and approval of regenerative medicine products, including gene therapy products.
Therapies designated as breakthrough therapies by the FDA may also be eligible for priority review and accelerated approval. Regenerative Medicine Advanced Therapy (“RMAT”) Designation Established under the 21st Century Cures Act, RMAT designation is a program designed to expedite the development and approval of regenerative medicine products, including gene therapy products.
HSV-1 has a natural affinity, or tropism, for epithelial cells. Consequently, we believe our vector penetrates and delivers its payload much more efficiently than other vectors, resulting in transduction efficiencies or cell penetration as high as 95% in cell-based studies.
HSV-1 has a natural affinity, or tropism, for 4 epithelial cells. Consequently, we believe our vector penetrates and delivers its payload much more efficiently than other vectors, resulting in transduction efficiencies or cell penetration as high as 95% in cell-based studies.
Clear evidence of successful gene delivery and AAT expression was observed in both patients that underwent bronchoscopies, with the proportion of conducting airway epithelial cells positive for AAT increasing from 0% to 39% in one patient and from 3% to 9 35% in the other.
Clear evidence of successful gene delivery and AAT expression was observed in both patients that underwent bronchoscopies, with the proportion of conducting airway epithelial cells positive for AAT increasing from 0% to 39% in one patient and from 3% to 35% in the other.
In addition, the ACA codified case law that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the FCA; • the federal Physician Payments Sunshine Act, which requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid, or the Children’s Health Insurance Program, with specific exceptions, to report annually to the Centers for Medicare & Medicaid Services information related to payments and other transfers of value to physicians, certain other healthcare providers and teaching hospitals, and ownership and investment interests held by physicians and other healthcare providers and their immediate family members; • the federal Health Care Fraud statute imposes criminal and civil liability for executing, or attempting to execute, a scheme to defraud any healthcare benefit program or making false statements relating to healthcare matters; • the Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”), and its implementing regulations, and as amended again by the final HIPAA omnibus rule (together with HIPAA and HITECH, the “HIPAA Rules”) which imposes privacy, security, and breach obligations, including mandatory contractual terms, with respect to safeguarding the security and privacy of individually identifiable health information by certain entities subject to the HIPAA Rules, such as health plans, health care clearinghouses, and health care providers that engage in certain covered transactions; • the federal false statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for federally sponsored healthcare benefits, items or services; and • state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers; state laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; and state and foreign laws governing the privacy and security of 27 personal information in certain circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts.
In addition, the ACA codified case law that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the FCA; • the federal Physician Payments Sunshine Act, which requires certain manufacturers of drugs, devices, biologics and medical supplies for which payment is available under Medicare, Medicaid, or the Children’s Health Insurance Program, with specific exceptions, to report annually to the Centers for Medicare & Medicaid Services information related to payments and other transfers of value to physicians, certain other healthcare providers and teaching hospitals, and ownership and investment interests held by physicians and other healthcare providers and their immediate family members; • the federal Health Care Fraud statute imposes criminal and civil liability for executing, or attempting to execute, a scheme to defraud any healthcare benefit program or making false statements relating to healthcare matters; • the Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), as amended by the Health Information Technology for Economic and Clinical Health Act (“HITECH”), and its implementing regulations, and as amended again by the final HIPAA omnibus rule (together with HIPAA and HITECH, the “HIPAA 30 Rules”) which imposes privacy, security, and breach obligations, including mandatory contractual terms, with respect to safeguarding the security and privacy of individually identifiable health information by entities subject to the HIPAA Rules, such as health plans, health care clearinghouses, and health care providers that engage in certain covered transactions, as well as their business associates; • the federal false statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for federally sponsored healthcare benefits, items or services; and • state and foreign law equivalents of each of the above federal laws, such as anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers; state laws that require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government or otherwise restrict payments that may be made to healthcare providers and other potential referral sources; state laws that require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures; and state and foreign laws governing the privacy and data security of personal information and health information in certain circumstances, many of which differ from each other in significant ways and may not have the same effect, thus complicating compliance efforts.
It is 28 illegal to pay, offer to pay or authorize the payment of anything of value to any foreign government official, government staff member, political party or political candidate in an attempt to obtain or retain business or to otherwise influence a person working in an official capacity.
It is illegal to pay, offer to pay or authorize the payment of anything of value to any foreign government official, government staff member, political party or political candidate in an attempt to obtain or retain business or to otherwise influence a person working in an official capacity.
Item 1. Business. Overview We are a fully integrated, commercial-stage biotechnology company focused on the discovery, development, manufacturing and commercialization of genetic medicines to treat diseases with high unmet medical needs.
Item 1. Business. Overview We are a fully integrated, global, commercial-stage biotechnology company focused on the discovery, development, manufacturing and commercialization of genetic medicines to treat diseases with high unmet medical needs.
We have screened hundreds of cell line clones to find the best complementing cell lines, and similarly designed and generated the optimal virus seed stocks for VYJUVEK and each of our product candidates.
We have screened hundreds of cell line clones to find the best complementing cell lines and designed and generated the optimal virus seed stocks for VYJUVEK and each of our product candidates.
In addition to patent protection, regulatory exclusivity, and trade secret protection, we also protect our approved product, product candidates 16 and platform technology with trademarks and contractual protections.
In addition to patent protection, regulatory exclusivity, and trade secret protection, we also protect our approved product, product candidates and platform technology with trademarks and contractual protections.
We do not have patents or patent applications in every jurisdiction where there is a potential commercial market for our approved product or our product candidates.
We do not have patents or patent applications in every jurisdiction where there is a potential commercial market for 18 our approved product or our product candidates.
Building on the results from Cohort 2, we opened two additional open-label, single-arm PEARL-1 cohorts to evaluate KB301 in two potential target indications for Phase 2, lateral canthal lines at rest and dynamic wrinkles of the décolleté, referred to as Cohorts 3 and 4, respectively.
Building on the results from Cohort 2, we opened two additional open-label, single-arm PEARL-1 cohorts to evaluate KB301 in two potential target indications for a Phase 2 trial, lateral canthal lines at rest and dynamic wrinkles of the décolleté, referred to as Cohorts 3 and 4, respectively.
We also believe the ability to redose, as well as the large payload capacity of our proprietary vectors, will allow us to deliver multiple genes and other effectors, which could enable development of therapies for more common conditions that are not necessarily the result of an inherited genetic defect, such as KB707.
We also believe the ability to redose, as well as the large payload capacity of our proprietary vectors, will allow us to deliver multiple genes and other effectors, which could enable development of therapies for more common conditions that are not necessarily the result of an inherited genetic defect.
In the United States, for example, the pharmaceutical industry has been a particular focus of these efforts and has been significantly affected and continues to face major uncertainty due to the status of major legislative initiatives surrounding healthcare reform. On August 16, 2022, the Inflation Reduction Act (“IRA”) was signed into law.
In the United States, for example, the pharmaceutical industry has been a particular focus of these efforts and has been significantly affected and continues to face major uncertainty due to the status of proposed and enacted legislative initiatives surrounding healthcare reform. On August 16, 2022, the Inflation Reduction Act (“IRA”) was signed into law.
KB301 for Dynamic Wrinkles of the Décolleté Background The skin is largely composed of collagen-rich connective tissue, with dermal collagen, composed primarily of type 1 and 3 collagen fibrils (“COL1” and “COL3”, respectively), representing over 90% of the dry weight of human skin. These fibrils provide strength to the skin and are critical for the maintenance of skin tissue architecture.
KB304 for Dynamic Wrinkles of the Décolleté Background The skin is largely composed of collagen-rich connective tissue, with dermal collagen, composed primarily of type 1 and 3 collagen fibrils (“COL1” and “COL3”, respectively), representing over 90% of the dry weight of human skin. These fibrils provide strength to the skin and are critical for the maintenance of skin tissue architecture.
Following completion of the GEM-3 trial, we initiated an OLE to provide extension of B-VEC treatment for participants who completed the GEM-3 trial (“rollover participants”) and B-VEC treatment for newly enrolling participants (“naïve participants”) with DEB. The OLE was a multi-center, open-label study of B-VEC for the topical treatment of DEB wounds.
Following completion of the GEM-3 trial, we initiated an open label extension (“OLE”) study to provide extension of B-VEC treatment for participants who completed the GEM-3 trial (“rollover participants”) and B-VEC treatment for newly 7 enrolling participants (“naïve participants”) with DEB. The OLE was a multi-center, open-label study of B-VEC for the topical treatment of DEB wounds.
Recombinant viral vectors are rendered incapable of, or attenuated for, replacing in human cells by removal of specific viral machinery, including packaging proteins. However, to produce the recombinant virus, these viral proteins have to be re-introduced into the virus production process so that the viral vector can be packaged.
Recombinant viral vectors are rendered incapable of, or attenuated for, replication in human cells by removal of specific viral machinery, including packaging proteins. However, to produce the recombinant virus, these viral proteins have to be re-introduced into the virus production process so that the viral vector can be packaged.
In December 2024, we announced an interim clinical data update including safety data for seven patients enrolled in the first two dose escalation cohorts of SERPENTINE-1 as well as molecular data from two patients in the second cohort that had consented to bronchoscopy.
In December 2024, we announced an interim clinical data update including safety data for seven patients enrolled in the first two dose escalation cohorts of SERPENTINE-1 as well as molecular data from two patients in the second cohort (“Cohort 2”) that had consented to bronchoscopy.
B-VEC B-VEC is a redosable, off-the-shelf gene therapy designed to deliver two copies of the COL7A1 gene when applied topically, directly onto an open wound. Unlike the previous standard of care, B-VEC treats DEB at the molecular level by providing the patient’s skin cells the template to make normal COL7 protein, thereby addressing the fundamental disease-causing mechanism.
VYJUVEK VYJUVEK is a redosable, off-the-shelf gene therapy designed to deliver two copies of the COL7A1 gene when applied topically, directly onto an open wound. Unlike the previous standard of care, VYJUVEK treats DEB at the molecular level by providing the patient’s skin cells the template to make normal COL7 protein, thereby addressing the fundamental disease-causing mechanism.
If we are able to successfully generate product candidates to treat these more common conditions, we intend to seek collaborative alliances towards the development and potential commercialization of these therapies. Manufacturing In-House CGMP Facilities We have built in-house CGMP facilities to enable better quality control, shorten lead times, lower costs and strengthen command over our intellectual property.
If we are able to successfully generate product candidates to treat these more common conditions, we intend to seek collaborative alliances towards the development and potential commercialization of these therapies. 15 Manufacturing In-House CGMP Facilities We have built in-house CGMP facilities in the United States to enable better quality control, shorten lead times, lower costs and strengthen command over our intellectual property.
In small animal models, analysis of lung tissue biopsies, serum, and bronchoalveolar lavage fluid harvested 24 and 48 hours after inhalation of KB408 shows secretion of full-length AAT protein, with no evidence of significant or systemic toxicity. In September 2023, the FDA granted KB408 ODD for the treatment of AATD.
In small animal models, analysis of lung tissue biopsies, serum, and bronchoalveolar lavage fluid harvested 24 and 48 hours after inhalation of KB408 shows secretion of full-length AAT protein, with no evidence of significant or systemic toxicity. The FDA has granted KB408 ODD for the treatment of AATD.
OPAL-1 was subsequently amended to add two dose expansion cohorts, in addition to the monotherapy dose expansion cohort, evaluating intratumoral KB707 in combination with anti-PD-1 and anti-lymphocyte activation gene 3 therapy or anti-PD-1 therapy alone, in patients with advanced melanoma that is relapsed or refractory to standard of care. Evaluation of intratumoral KB707 as monotherapy and in combination is ongoing.
OPAL-1 was subsequently amended to add two dose expansion cohorts, in addition to the monotherapy dose expansion cohort, evaluating intratumoral KB707 in combination with anti-PD-1 and anti-lymphocyte activation gene 3 therapy or anti-PD-1 therapy alone, in patients with advanced melanoma that is relapsed or refractory to standard of care.
Coverage policies and third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future. In the EU, pricing and reimbursement schemes vary widely from country to country.
Coverage policies and third-party reimbursement rates may change at any time. Even if favorable coverage and reimbursement status is attained for one or more products for which we receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future. In the EU, pricing and reimbursement schemes vary widely from member state to member state.
Our FDA Approved Product and Pipeline The following table summarizes information regarding our FDA approved product, VYJUVEK, and product candidates in various stages of clinical and preclinical development as of the date of this Annual Report: 5 Our FDA Approved Commercial Product VYJUVEK (beremagene geperpavec-svdt, or B-VEC; referred to as B-VEC outside the United States) Disease Background DEB is a rare and severe monogenic skin disease.
Our Commercial Product and Pipeline The following table summarizes information regarding our commercial product, VYJUVEK, and product candidates in various stages of clinical and preclinical development as of the date of this Annual Report: 5 Our Commercial Product VYJUVEK (beremagene geperpavec-svdt, or B-VEC; referred to as B-VEC outside the United States, Europe, and Japan) Disease Background DEB is a rare and severe monogenic skin disease.
Preclinical efforts to date have shown that KB407 successfully transduces patient-derived epithelial cells and delivers functional CFTR in vitro in 2D and 3D organotypic systems, and is amendable to non-invasive inhaled administration in vivo , as indicated by successful delivery to the lungs through the use of a clinically relevant nebulizer in small animal models.
Preclinical efforts show that KB407 successfully transduces patient-derived epithelial cells and delivers functional CFTR in vitro in 2D and 3D organotypic systems, and is amendable to non-invasive inhaled administration in vivo , as indicated by successful delivery to the lungs through the use of a clinically relevant nebulizer in small animal models.
We believe our approach to treating DEB is positively differentiated relative to palliative approaches, which do not address the underlying genetic cause of DEB or impact the durability of wound closure, and other known efforts to develop corrective treatments that employ autologous approaches. Autologous treatments use a patient’s own tissues and cells to manufacture an individualized therapy.
We believe our approach to treating DEB is positively differentiated relative to palliative approaches, which do not address the underlying genetic cause of DEB or impact the durability of wound closure, and corrective treatments that employ autologous approaches. Autologous treatments use a patient’s own tissues and cells to manufacture an individualized therapy.
In addition, our experience in clinical trials, obtaining FDA and other regulatory approvals, and manufacturing and commercialization of products may be more limited. VYJUVEK / B-VEC Dystrophic Epidermolysis Bullosa A number of companies are developing drug candidates for the treatment of DEB. VYJUVEK is the only corrective therapy for DEB approved worldwide.
In addition, our experience in clinical trials, obtaining FDA and other regulatory approvals, and manufacturing and commercialization of products may be more limited. VYJUVEK / B-VEC Dystrophic Epidermolysis Bullosa A number of companies are developing or commercializing drug candidates for the treatment of DEB. VYJUVEK is the first corrective therapy for DEB approved worldwide.
In January 2022, August 2022, December 2022, August 2023, March 2024, November 2024, and December 2024 we incorporated wholly-owned subsidiaries in Switzerland, Netherlands, France, Germany, Japan, Italy, and Spain respectively, for the purpose of establishing initial operations in Europe and Japan for the commercialization of VYJUVEK and our product pipeline. Our website address is www.krystalbio.com.
In January 2022, August 2022, December 2022, August 2023, March 2024, November 2024, December 2024 and July 2025 we incorporated wholly-owned subsidiaries in Switzerland, Netherlands, France, Germany, Japan, Italy, Spain, and the UK, respectively, for the purpose of establishing operations in Europe and Japan for the commercialization of VYJUVEK ® and our product pipeline. Our website address is www.krystalbio.com.
Our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Exchange Act are available free of charge on the investor relations section of our website as soon as reasonably practicable after we electronically file such material with, or furnish it to the Securities and Exchange Commission, or the SEC.
Access to our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and our Proxy Statements, and amendments to these reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Exchange Act are available free of charge on the investor relations section of our website as soon as reasonably practicable after we electronically file such material with, or furnish it to the Securities and Exchange Commission, or the SEC.
Our vectors are amenable to formulation for non-invasive or minimally invasive routes of administration at a healthcare professional’s office or in the patient’s home by a healthcare professional. Our innovative technology platform is supported by two in-house, commercial scale Current Good Manufacturing Practice (“CGMP”) manufacturing facilities.
Our vectors are amenable to formulation for non-invasive or minimally invasive routes of administration at a healthcare professional’s office or in the patient’s home by a healthcare professional, caregiver, or directly by the patient themselves. Our innovative technology platform is supported by two in-house, commercial scale Current Good Manufacturing Practice (“CGMP”) manufacturing facilities.
In the skin, neocollagenesis is affected by the deposition of, and complex interactions between, COL1 and COL3. COL3 appears early during collagen fibril formation and has been shown to both regulate the dimensions of COL1 fibers and enhance COL1 elasticity.
In the skin, new collagen synthesis is affected by the deposition of, and complex interactions between, COL1 and COL3. COL3 appears early during collagen fibril formation and has been shown to both regulate the dimensions of COL1 fibers and enhance COL1 elasticity.
Enrollment in both cohorts is ongoing. Details of the KYANITE-1 study can be found at www.clinicaltrials.gov under NCT identifier NCT06228326. Clinical Development of Intratumoral KB707 In July 2023, we announced that the FDA had accepted our initial KB707 IND application to evaluate intratumoral KB707 in a clinical trial to treat patients with locally advanced or metastatic solid tumors.
Details of the KYANITE-1 study can be found at www.clinicaltrials.gov under NCT identifier NCT06228326. Clinical Development of Intratumoral KB707 In July 2023, we announced that the FDA had accepted our initial KB707 IND application to evaluate intratumoral KB707 in a clinical trial to treat patients with locally advanced or metastatic solid tumors.
Complete results from Cohort 1 focused on safety were presented at the 2021 SID Annual Meeting. In March 2022, we announced positive proof-of-concept efficacy and safety data from Cohort 2 of the PEARL-1 study of KB301 for the treatment of aesthetic skin indications.
Complete results from Cohort 1 focused on safety were presented at the 2021 Society for Investigative Dermatology Annual Meeting. In March 2022, we announced positive proof-of-concept efficacy and safety data from Cohort 2 of the PEARL-1 study of KB301 for the treatment of aesthetic skin indications.
We believe that our approach of directed expression of full-length human COL3 via intradermal application of KB301 provides a unique and straightforward approach to restoring collagen homeostasis, and by extension, reconstructing an optimal physiologic environment in the skin to treat wrinkles or other presentations of aged or damaged skin.
We believe that our approach of directed expression of full-length human COL3 and ELN via intradermal application of KB304 provides a unique, comprehensive, and straightforward approach to restoring collagen homeostasis and skin elasticity, and by extension, reconstructing an optimal physiologic environment in the skin to treat wrinkles or other presentations of aged or damaged skin.
The study enrolled 47 participants in total, comprising of 24 rollover participants and 23 naïve participants, at five sites in the United States. In April 2022, following feedback from the FDA, we announced that patients enrolled in the OLE study would have the option to be dosed in their homes by a health care professional.
The study enrolled 47 participants in total, comprising 24 rollover participants and 23 naïve participants, at five sites in the United States. In April 2022, following feedback from the FDA, we announced that patients enrolled in the OLE study would have the option to be dosed in their homes by a HCP.
The FDCA, PHSA and their corresponding regulations govern, among other things, the testing, manufacturing, safety, efficacy, labeling, packaging, storage, record keeping, distribution, reporting, importation, advertising and other promotional practices involving biologic products. IND applications to the FDA are required before conducting human clinical 21 testing of biologic products.
The FDCA, PHSA and their corresponding regulations govern, among other things, the testing, manufacturing, safety, efficacy, labeling, packaging, storage, record keeping, distribution, reporting, importation, advertising and other promotional practices involving biologic products. Investigational new drug, or IND, applications to the FDA are required before conducting human clinical testing of biologic products.
We are also aware of a recombinant-protein based approach being developed by BridgeBio Pharma, Inc.’s affiliate company, Phoenix Tissue Repair. • Palliative Treatments: We are aware of companies, such as Chiesi Farmaceutici S.p.A. and RHEACELL GmbH & Co., which are developing product candidates taking a palliative approach to treating the disease.
We are also aware of a recombinant-protein-based approach being developed by BridgeBio Pharma, Inc.’s affiliate company, Phoenix Tissue Repair. • Palliative Treatments: We are aware of companies, such as Chiesi Farmaceutici S.p.A. and RHEACELL GmbH & Co., which are developing or have commercialized products taking a palliative approach to treating the disease.
Human Capital As of February 12, 2025, we had 275 full-time employees, primarily engaged in research and development, pre-clinical and clinical trials, manufacturing VYJUVEK and our pipeline product candidates, commercial activities for VYJUVEK in the United States and commercialization preparations for VYJUVEK in the European Union and Japan, regulatory matters, strategic business development, finance and other technical matters, supply chain, and general and administrative services.
Human Capital As of February 11, 2026, we had 295 full-time employees, primarily engaged in research and development, pre-clinical and clinical trials, manufacturing VYJUVEK and our pipeline product candidates, commercial activities for VYJUVEK in the United States, the European Union, and Japan, regulatory matters, strategic business development, finance and other technical matters, supply chain, and general and administrative services.
The conduct of the preclinical tests must comply with federal regulations and requirements including CGLPs. 22 Concurrent with clinical trials, companies usually must complete some long-term preclinical testing, such as animal studies of reproductive adverse events and carcinogenicity and must also develop additional information about the chemistry and physical characteristics of the biological product and finalize a process for manufacturing the biological product in commercial quantities in accordance with CGMP requirements.
Concurrent with clinical trials, companies usually must complete some long-term preclinical testing, such as animal studies of reproductive adverse events and carcinogenicity and must also develop additional information about the chemistry and physical characteristics of the biological product and finalize a process for manufacturing the biological product in commercial quantities in accordance with CGMP requirements.
Our development pipeline includes multiple clinical stage programs for rare and serious diseases, and we are investing in research and development to advance and grow this pipeline. We possess exclusive rights to develop, manufacture, and commercialize our FDA approved product and our pipeline candidates throughout the world.
Our development pipeline includes multiple clinical stage product candidates for the treatment of rare and serious diseases, and we are investing in research and development to advance and grow this pipeline. We possess exclusive rights to develop, manufacture, and commercialize VYJUVEK and our pipeline product candidates throughout the world.
This includes the eye, where COL7 anchors the corneal epithelium. For a meaningful proportion of DEB patients, the genetic defect in COL7A1 results in loss or malfunctioning of these anchoring fibrils causing ocular complications, such as corneal erosions, abrasions, blistering, and scarring, that can lead to progressive vision loss.
For a meaningful proportion of DEB patients, the genetic defect in COL7A1 results in loss or malfunctioning of these anchoring fibrils causing ocular complications, such as corneal erosions, abrasions, blistering, and scarring, that can lead to progressive vision loss.
Based on this positive opinion, we expect to be eligible for up to an additional two years of marketing exclusivity in the EU, on top of the ten-year EU market exclusivity after market approval in the EU. The European regulatory authorities have also granted B-VEC Orphan Designation and PRIority MEdicines eligibility for B-VEC to treat DEB.
Based on this positive opinion, we expect to be eligible for up to an additional two years of marketing exclusivity in the EU, on top of the ten-year EU market exclusivity granted upon marketing authorization in the EU. European regulatory authorities also previously granted Orphan Designation and PRIority MEdicines eligibility to B-VEC for the treatment of DEB.
Clinical Development of Inhaled KB707 In January 2024, the FDA accepted an amendment to our KB707 investigational new drug (“IND”) application to evaluate inhaled KB707 in a clinical trial to treat patients with locally advanced or metastatic solid tumors of the lung.
Clinical Development of Inhaled KB707 12 In January 2024, the FDA accepted an amendment to our KB707 IND application to evaluate inhaled KB707 in a clinical trial to treat patients with locally advanced or metastatic solid tumors of the lung.
Even with optimized reagents and methods, significant batch-to-batch variability is seen in viral vector yield and titer that, we believe, drives up the cost of viral vector manufacturing and scale-up and increases the risk of failure during manufacturing. Our proprietary upstream process for HSV-1 production avoids the aforementioned issues.
Even with optimized reagents and methods, other viral vector production systems exhibit significant batch-to-batch variability in viral vector yield and titer that, we believe, drives up the cost of viral vector manufacturing and scale-up and increases the risk of failure during manufacturing. Our proprietary upstream production process avoids the aforementioned issues.
Solid tumor malignancies similarly impose a heavy burden on patients in the United States, with the National Cancer Institute estimating that over 300,000 patients will have died from lung, colon and rectum, pancreas, breast, prostate, liver and bile duct, and melanoma of the skin cancers in 2023.
Solid tumor malignancies similarly impose a heavy burden on patients in the United States, with the National Cancer Institute estimating that hundreds of thousands of patients died from lung, colon and rectum, pancreas, breast, prostate, liver and bile duct, and melanoma of the skin cancers in 2025.
B-VEC was well tolerated in the Japanese study population, with a safety profile consistent with previous studies, and all four patients that completed the study achieved the primary endpoint of complete wound closure at six months.
B-VEC was well tolerated in the Japanese study population, with a safety profile consistent with previous studies, and all four patients that completed the study achieved the primary endpoint of complete wound closure at six months. Results of the Japan OLE study were published the Journal of Dermatology in July 2025.
Trademark registrations generally are for fixed but renewable terms. Government Regulation and Product Approval In the United States, the FDA regulates biologic products including gene therapy products under the Federal Food, Drug, and Cosmetic Act (the “FDCA”), the Public Health Service Act (“PHSA”), and regulations and guidance implementing these laws.
Government Regulation and Product Approval In the United States, the FDA regulates biologic products including gene therapy products under the Federal Food, Drug, and Cosmetic Act (the “FDCA”), the Public Health Service Act (“PHSA”), and regulations and guidance implementing these laws.
To that end, in April 2019, we incorporated Jeune Aesthetics, a wholly-owned subsidiary, for the purposes of undertaking preclinical and clinical studies for aesthetic skin conditions.
We incorporated Jeune Aesthetics, a wholly-owned subsidiary, for the purposes of undertaking preclinical and clinical studies for aesthetic skin conditions.
We estimate that there are over 3,000 patients in the United States suffering from DEB, of which 1,200 were identified at launch through claims analytics and pre-launch patient identification activities conducted by our commercial field force. Since our commercial launch of VYJUVEK in the United States, we have reported $341.2 million in net product revenue.
We first launched VYJUVEK in the United States in 2023. We estimate that there are over 3,000 patients in the United States suffering from DEB, of which 1,200 were identified at launch through claims analytics and pre-launch patient identification activities conducted by our commercial field force.
A decision on the JNDA by the PMDA is expected in the second half of 2025. Clinical Development We initiated Phase 1 testing of a topical formulation of B-VEC in May 2018 at Stanford University, and we announced positive interim results from this clinical study on two patients in October 2018.
Clinical Development We initiated Phase 1 testing of a topical formulation of B-VEC in May 2018 at Stanford University, and we announced positive interim results from this clinical study on two patients in October 2018.
Regulatory Exclusivity The various types of regulatory exclusivity or designations for which VYJUVEK and our product candidates have been granted, or which our current or future product candidates may be eligible to receive are generally discussed above or below, under “Government Regulation and Product Approval”.
Regulatory Exclusivity The various types of regulatory exclusivity or designations for which VYJUVEK and our product candidates have been granted, or which our current or future product candidates may be eligible to receive are generally discussed above or below, under “Government Regulation and Product Approval”. 24 Trademarks Our trademarks are important to us and are generally filed to protect our corporate brand, our approved product, our product candidates, and our platform technology.
We are working closely with the Alpha-1 Foundation and their Therapeutic Development Network on the SERPENTINE-1 study and expect to announce complete SERPENTINE-1 study results in the second half of 2025. Details of the SERPENTINE-1 study can be found at www.clinicaltrials.gov under NCT identifier NCT06049082.
We are working closely with the Alpha-1 Foundation and their 9 Therapeutic Development Network on the SERPENTINE-1 study. Details of the SERPENTINE-1 study can be found at www.clinicaltrials.gov under NCT identifier NCT06049082.
The CFF estimates that there are close to 40,000 children and adults living with CF in the United States, and an estimated 105,000 people diagnosed with CF across 94 countries.
The CFF estimates that there are close to 40,000 children and adults living with CF in the United States, and an estimated 105,000 people diagnosed with CF across 94 countries. People of every racial and ethnic group are affected by this debilitating disease.
Both intratumoral and inhaled KB707 have also been granted RPDD by the FDA, with intratumoral KB707 receiving RPDD for the treatment of rhabdomyosarcoma in August 2024 and inhaled KB707 receiving RPDD for the treatment of osteosarcoma in May 2024.
Both intratumoral and inhaled KB707 have also been granted RPDD by the FDA, with intratumoral KB707 receiving RPDD for the treatment of rhabdomyosarcoma in August 2024 and inhaled KB707 receiving RPDD for the treatment of osteosarcoma in May 2024. In February 2026, the FDA also granted RMAT designation to KB707 for the treatment of advanced or metastatic NSCLC.
In all cases, the clinical trials are conducted in accordance with CGCPs and the applicable regulatory requirements of the country or countries in which the clinical trial is performed, as well as the ethical 26 principles that have their origin in the Declaration of Helsinki (whichever provides the greater protection to the clinical trial participants).
In all cases, the clinical trials are conducted in accordance with the applicable EU laws and regulatory requirements of the country or countries in which the clinical trial is performed, as well as the International Council for Harmonisation of Technical Requirements of Pharmaceuticals for Human Use’s guidelines on good clinical practice and ethical principles that have their origin in the Declaration of Helsinki (whichever provides the greater protection to the clinical trial participants).
With the approval, the FDA issued a Rare Pediatric Disease Priority Review Voucher (“PRV”), which confers priority review to a subsequent drug application that would not otherwise qualify for priority review. We sold the PRV in the third quarter of 2023 for $100 million.
No clinical post-marketing commitments or Risk Evaluation and Mitigation Strategies program were required by the FDA. With the approval, the FDA issued a Rare Pediatric Disease Priority Review Voucher (“PRV”), which confers priority review to a subsequent drug application that would not otherwise qualify for priority review. We sold the PRV in the third quarter of 2023 for $100 million.
We believe our competitors fall into two broad categories: • Corrective Approaches: We are aware of two companies, Abeona Therapeutics Inc. and Castle Creek Biosciences, Inc., which are developing autologous or grafting gene therapy approaches to treating DEB.
We believe our competitors fall into two broad categories: • Corrective Approaches: We are aware of companies, Abeona Therapeutics Inc. and Castle Creek Biosciences, Inc., which are developing or have commercialized autologous or grafting gene therapy approaches to treating DEB. Abeona Therapeutics Inc.’s autologous gene therapy product Zevaskyn ® (prademagene zamikeracel) was approved by the FDA in 2025.
We are aware that LEO Pharma A/S has recently completed a clinical trial of a product for the treatment of congenital ichthyosis. Aesthetics Aesthetic Skin Conditions There are multiple approved therapies for aesthetic skin conditions, including hyaluronic acid and botulinum toxin based products marketed by AbbVie Inc., Revance Therapeutics, Inc., Merz Pharma GmbH & Co., KGaA, Galderma S.A., and others.
Aesthetics Aesthetic Skin Conditions There are multiple approved therapies for aesthetic skin conditions, including hyaluronic acid and botulinum toxin based products marketed by AbbVie Inc., Revance Therapeutics, Inc., Merz Pharma GmbH & Co., KGaA, Galderma S.A., and others.
People of every racial and ethnic group are affected by this debilitating disease. 8 KB407 KB407 is a redosable off the-shelf gene therapy designed to deliver two copies of the full-length CFTR transgene directly to the airway epithelia via inhaled (nebulized) administration.
KB407 KB407 is a redosable off the-shelf gene therapy designed to deliver two copies of the full-length CFTR transgene directly to the airway epithelia via inhaled (nebulized) administration.
Our website and the information contained on, or that can be accessed through, the website will not be deemed to be incorporated by reference in, and are not considered part of, this Annual Report on Form 10-K. You should not rely on any such information in making your decision whether to purchase our common stock.
Our website and the information contained on, or that can be accessed through, the website are not incorporated by reference in, and are not considered part of, this Annual Report on Form 10-K.
Aesthetics While our focus is on the development of gene therapies to treat patients with severe, life‑threatening, or rare diseases with high unmet medical needs, we are also evaluating the potential of our platform to address more prevalent and/or non-genetic conditions.
While our focus is on the development of gene therapies to treat patients with rare diseases with high unmet medical needs, we are also evaluating the potential of our platform to address more common severe or life-threatening diseases, such as non-small cell lung cancer (“NSCLC”), as well as aesthetic conditions via our wholly-owned subsidiary Jeune Aesthetics, Inc.
The FDA will not approve the product candidate unless it determines that the manufacturing processes and facilities are in compliance with CGMP requirements and adequate to assure consistent production of the product candidate within required specifications. 24 Additionally, before approving a BLA, the FDA typically will inspect one or more clinical sites to assure that the clinical trials were conducted in compliance with the IND application trial requirements and CGCP requirements.
Before approving a BLA, the FDA will inspect the facilities at which the product candidate is manufactured. The FDA will not approve the product candidate unless it determines that the manufacturing processes and facilities are in compliance with CGMP requirements and adequate to assure consistent production of the product candidate within required specifications.
Whether or not a sponsor obtains FDA approval for a product, a sponsor must obtain the requisite approvals from regulatory authorities in foreign countries prior to the commencement of clinical trials or marketing of the product in those countries.
Because biologically sourced raw materials are subject to unique contamination risks, their use may be restricted in some countries. Whether or not a sponsor obtains FDA approval for a product, a sponsor must obtain the requisite approvals from regulatory authorities in foreign countries prior to the commencement of clinical trials or marketing of the product in those countries.
Some of the most established companies in the marketing and development of new cancer drugs include Merck & Co Inc., Bristol Myers Squibb Company, Johnson & Johnson, and Pfizer Inc. Dermatology Lamellar Ichthyosis There are no approved therapies for LI at this time.
Some of the most established companies in the marketing and development of new cancer drugs include Merck & Co Inc., Bristol Myers Squibb Company, Johnson & Johnson, and Pfizer Inc.
In Phase 3 studies, the biologic product candidate is administered to an expanded patient population, generally at multiple geographically dispersed clinical trial sites in adequate and well-controlled clinical trials to generate sufficient data to statistically confirm the potency and safety of the product for approval. 23 These clinical trials are intended to establish the overall risk/benefit ratio of the product candidate and provide an adequate basis for product labeling. • Post-approval clinical trials, sometimes referred to as Phase 4 clinical trials, may be conducted after marketing approval.
In Phase 3 studies, the biologic product candidate is administered to an expanded patient population, generally at multiple geographically dispersed clinical trial sites in adequate and well-controlled clinical trials to generate sufficient data to statistically confirm the potency and safety of the product for approval.