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Vertex and CRISPR Therapeutics Complete Submission of Rolling Biologics License Applications (BLAs) to the US FDA for exa-cel for the Treatment of Sickle Cell Disease and Transfusion-Dependent Beta Thalassemia
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Rhea-AI Summary
Vertex Pharmaceuticals and CRISPR Therapeutics have completed the rolling Biologics License Applications (BLAs) for the investigational treatment exagamglogene autotemcel (exa-cel) aimed at sickle cell disease (SCD) and transfusion-dependent beta thalassemia (TDT). The applications, submitted to the FDA, include requests for Priority Review, potentially expediting the review period to eight months. The filings are supported by ongoing Phase 3 clinical studies and previous data presented at the ASH Annual Meeting in December 2022. Both companies highlight their commitment to the advancement of CRISPR technology in treating genetic diseases.
Positive
BLAs for exa-cel submitted with Priority Review request, potentially reducing FDA review time to eight months.
Support from Phase 3 study results and previously presented data enhances the credibility of the application.
Exa-cel holds multiple designations from the FDA and EMA, including Orphan Drug and Fast Track.
Negative
None.
-EU and UK filings completed in 2022; submissions validated by EMA and MHRA and the review procedure has begun as of January 2023-
BOSTON & ZUG, Switzerland--(BUSINESS WIRE)--
Vertex Pharmaceuticals Incorporated (Nasdaq: VRTX) and CRISPR Therapeutics (Nasdaq: CRSP) today announced the completion of the rolling Biologics License Applications (BLAs) to the U.S. Food and Drug Administration (FDA) for the investigational treatment exagamglogene autotemcel (exa-cel) for sickle cell disease (SCD) and transfusion-dependent beta thalassemia (TDT). The BLAs include requests for Priority Review, which if granted, would shorten the FDA’s review of the application to eight months from the time of submission versus a standard review timeline of 12 months.
These submissions are supported by results from the ongoing Phase 3 studies, CLIMB-111 and CLIMB-121, as well as an ongoing long-term follow-up study, CLIMB-131. Data from the Phase 3 studies were most recently presented at the American Society of Hematology (ASH) Annual Meeting and Exposition in December of 2022.
“The completion of our exa-cel global regulatory filings is a historic milestone,” said Carmen Bozic, M.D., Executive Vice President, Global Medicines Development and Medical Affairs, and Chief Medical Officer at Vertex Pharmaceuticals. “We want to thank the clinical trial participants and the sickle cell and beta thalassemia communities, as well as the physicians, nurses, coordinators, caregivers and friends who support them.”
“Within a decade, we have progressed from the discovery of the CRISPR platform to the first regulatory filings for a CRISPR-based therapy, which speaks to the transformative nature of CRISPR technology,” said Phuong Khanh (P.K.) Morrow, M.D., FACP, Chief Medical Officer at CRISPR Therapeutics.
In the U.S., exa-cel has been granted Regenerative Medicine Advanced Therapy (RMAT), Fast Track, Orphan Drug, and Rare Pediatric Disease designations from the FDA for both SCD and TDT.
In Europe, the Marketing Authorization Applications (MAAs) for exa-cel were submitted in December 2022 and validated by the European Medicines Agency (EMA) and the Medicines and Healthcare products Regulatory Agency (MHRA) in January 2023. In the EU, exa-cel has been granted Orphan Drug Designation from the European Commission, as well as Priority Medicines (PRIME) designation from the EMA, for both SCD and TDT. In the U.K., exa-cel has also been granted an Innovation Passport under the Innovative Licensing and Access Pathway (ILAP) from the MHRA.
About exagamglogene autotemcel (exa-cel)
Exa-cel, formerly known as CTX001™, is an investigational, autologous, ex vivo CRISPR/Cas9 gene-edited therapy that is being evaluated for patients with SCD or TDT, in which a patient’s own hematopoietic stem cells are edited to produce high levels of fetal hemoglobin (HbF; hemoglobin F) in red blood cells. HbF is the form of the oxygen-carrying hemoglobin that is naturally present during fetal development, which then switches to the adult form of hemoglobin after birth. The elevation of HbF by exa-cel has the potential to reduce or eliminate painful and debilitating vaso-occlusive crises (VOCs) for patients with SCD and reduce or eliminate transfusion requirements for patients with TDT. Earlier results from these ongoing trials were published in The New England Journal of Medicine in January of 2021 and presented at the ASH Annual Meeting and Exposition in December 2022.
About CLIMB-111 and CLIMB-121
The ongoing Phase 1/2/3 open-label trials, CLIMB-111 and CLIMB-121, are designed to assess the safety and efficacy of a single dose of exa-cel in patients ages 12 to 35 years with TDT or with SCD, characterized by recurrent VOCs, respectively. The trials are now closed for enrollment. Patients will be followed for approximately two years after exa-cel infusion. Each patient will be asked to participate in CLIMB-131, a long-term follow-up trial.
About CLIMB-131
The ongoing long-term, open-label trial, CLIMB-131, is designed to evaluate the safety and efficacy of exa-cel in patients who received exa-cel in CLIMB-111, CLIMB-121, CLIMB-141, CLIMB-151 or CLIMB-161. The trial is designed to follow patients for up to 15 years after exa-cel infusion.
About CLIMB-141 and CLIMB-151
The ongoing Phase 3 open-label trials, CLIMB-141 and CLIMB-151, are designed to assess the safety and efficacy of a single dose of exa-cel in patients ages 2 to 11 years with TDT or with SCD, characterized by recurrent VOCs, respectively. The trials are currently enrolling patients ages 5 to 11 years with a plan to extend to ages 2 to less than 5 years at a later date. Each trial will enroll approximately 12 patients. Patients will be followed for approximately two years after infusion. Each patient will be asked to participate in CLIMB-131, a long-term follow-up trial.
About CLIMB-161
The ongoing Phase 3b study, CLIMB-161, is to support expansion of our manufacturing footprint after initial potential approval and launch. This study will enroll approximately 12 patients with either SCD or TDT ages 12 to 35 years. Patients will be followed for approximately one year after infusion. Each patient will be asked to participate in CLIMB-131, a long-term follow-up trial.
About the Gene-Editing Process in These Trials
Patients who enroll in these trials will have their own hematopoietic stem and progenitor cells collected from peripheral blood. The patient’s cells will be edited using the CRISPR/Cas9 technology. The edited cells, exa-cel, will then be infused back into the patient as part of an autologous hematopoietic stem cell transplant (HSCT), a process which involves a patient being treated with myeloablative busulfan conditioning. Patients undergoing HSCT may also encounter side effects (ranging from mild to severe) that are unrelated to the administration of exa-cel. Patients will initially be monitored to determine when the edited cells begin to produce mature blood cells, a process known as engraftment. After engraftment, patients will continue to be monitored to track the impact of exa-cel on multiple measures of disease and for safety.
About the Vertex and CRISPR Collaboration
Vertex and CRISPR Therapeutics entered into a strategic research collaboration in 2015 focused on the use of CRISPR/Cas9 to discover and develop potential new treatments aimed at the underlying genetic causes of human disease. Exa-cel represents the first potential treatment to emerge from the joint research program. Under an amended collaboration agreement, Vertex now leads global development, manufacturing and commercialization of exa-cel and splits program costs and profits worldwide 60/40 with CRISPR Therapeutics.
About Vertex
Vertex is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases. The company has multiple approved medicines that treat the underlying cause of cystic fibrosis (CF) — a rare, life-threatening genetic disease — and has several ongoing clinical and research programs in CF. Beyond CF, Vertex has a robust clinical pipeline of investigational small molecule, cell and genetic therapies in other serious diseases where it has deep insight into causal human biology, including sickle cell disease, beta thalassemia, APOL1-mediated kidney disease, pain, type 1 diabetes and alpha-1 antitrypsin deficiency.
Founded in 1989 in Cambridge, Mass., Vertex's global headquarters is now located in Boston'sInnovation District and its international headquarters is in London. Additionally, the company has research and development sites and commercial offices in North America, Europe, Australia and Latin America. Vertex is consistently recognized as one of the industry's top places to work, including 13 consecutive years on Science magazine's Top Employers list and one of Fortune’s Best Workplaces in Biotechnology and Pharmaceuticals and Best Workplaces for Women. For company updates and to learn more about Vertex's history of innovation, visit www.vrtx.com or follow us on Facebook, Twitter, LinkedIn, YouTube and Instagram.
(VRTX-GEN)
Vertex Special Note Regarding Forward-Looking Statements
This press release contains forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995, as amended, including, without limitation, statements by Carmen Bozic, M.D. and Phuong Khanh (P.K.) Morrow M.D., FACP in this press release, our expectations regarding the potential benefits of exa-cel, expectations for our regulatory submissions for exa-cel, expectations that Priority Review, if granted, would shorten the FDA’s review of our BLAs, the status of our clinical trials of our product candidates under development by us and our collaborators, including activities at the clinical trial sites, the gene-editing process, patient enrollment and expectations regarding clinical trial follow-up. While Vertex believes the forward-looking statements contained in this press release are accurate, these forward-looking statements represent the company's beliefs only as of the date of this press release and there are a number of risks and uncertainties that could cause actual events or results to differ materially from those expressed or implied by such forward-looking statements. Those risks and uncertainties include, among other things, that regulatory authorities may not approve, or approve on a timely basis, our regulatory submissions for exa-cel, that data from a limited number of patients may not be indicative of final clinical trial results, that data from the company's development programs, including its programs with its collaborators, may not support registration or further development of its compounds due to safety and/or efficacy, or other reasons, that internal or external factors could delay, divert, or change our plans and objectives with respect to our research and development programs, that future competitive or other market factors may adversely affect the commercial potential for exa-cel, and other risks listed under the heading “Risk Factors” in Vertex's most recent annual report and subsequent quarterly reports filed with the Securities and Exchange Commission (SEC) and available through the company's website at www.vrtx.com and on the SEC’s website at www.sec.gov. You should not place undue reliance on these statements or the scientific data presented. Vertex disclaims any obligation to update the information contained in this press release as new information becomes available.
(CRSP-GEN)
About CRISPR Therapeutics
CRISPR Therapeutics is a leading gene editing company focused on developing transformative gene-based medicines for serious diseases using its proprietary CRISPR/Cas9 platform. CRISPR/Cas9 is a revolutionary gene editing technology that allows for precise, directed changes to genomic DNA. CRISPR Therapeutics has established a portfolio of therapeutic programs across a broad range of disease areas including hemoglobinopathies, oncology, regenerative medicine and rare diseases. To accelerate and expand its efforts, CRISPR Therapeutics has established strategic collaborations with leading companies including Bayer, Vertex Pharmaceuticals and ViaCyte, Inc.CRISPR Therapeutics AG is headquartered in Zug, Switzerland, with its wholly-owned U.S. subsidiary, CRISPR Therapeutics, Inc., and R&D operations in Boston, Massachusetts and San Francisco, California, and business offices in London, United Kingdom. For more information, please visit www.crisprtx.com.
CRISPR THERAPEUTICS® word mark and design logo and CTX001™ are trademarks and registered trademarks of CRISPR Therapeutics AG. All other trademarks and registered trademarks are the property of their respective owners.
CRISPR Therapeutics Forward-Looking Statement
This press release may contain a number of “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, as well as statements regarding CRISPR Therapeutics’ expectations about any or all of the following: (i) the safety, efficacy and clinical progress of the ongoing exa-cel clinical trials; (ii) the potential benefits of exa-cel; (iii) the timing of the FDA’s review of the BLAs, and impact of Priority Review on such timing; (iv) the expected benefits of our collaborations; and (v) the therapeutic value, development, and commercial potential of CRISPR/Cas9 gene editing technologies and therapies. Without limiting the foregoing, the words “believes,” “anticipates,” “plans,” “expects” and similar expressions are intended to identify forward-looking statements. You are cautioned that forward-looking statements are inherently uncertain. Although CRISPR Therapeutics believes that such statements are based on reasonable assumptions within the bounds of its knowledge of its business and operations, existing and prospective investors are cautioned that forward-looking statements are inherently uncertain, are neither promises nor guarantees and not to place undue reliance on such statements, which speak only as of the date they are made. Actual performance and results may differ materially from those projected or suggested in the forward-looking statements due to various risks and uncertainties. These risks and uncertainties include, among others: the potential for preliminary data from any clinical trial not to be indicative of final trial results; the potential that the exa-cel clinical trial results may not be favorable or may not support registration or further development; that future competitive or other market factors may adversely affect the commercial potential for exa-cel; CRISPR Therapeutics may not realize the potential benefits of its collaboration with Vertex; uncertainties regarding the intellectual property protection for CRISPR Therapeutics’ technology and intellectual property belonging to third parties; and those risks and uncertainties described under the heading “Risk Factors” in CRISPR Therapeutics’ most recent annual report on Form 10-K, subsequent quarterly reports on Form 10-Q, and in any other subsequent filings made by CRISPR Therapeutics with the U.S. Securities and Exchange Commission, which are available on the SEC's website at www.sec.gov. CRISPR Therapeutics disclaims any obligation or undertaking to update or revise any forward-looking statements contained in this press release, other than to the extent required by law.
What is the significance of the BLAs submitted by Vertex and CRISPR for exa-cel?
The BLAs represent a significant step towards the approval of exa-cel, a CRISPR-based therapy that could potentially treat sickle cell disease and beta thalassemia.
What are the designations obtained for exa-cel from regulatory agencies?
Exa-cel has received Regenerative Medicine Advanced Therapy, Fast Track, Orphan Drug, and Rare Pediatric Disease designations from the FDA.
When was the exa-cel data presented that supports the BLA?
Data supporting the BLA was presented at the American Society of Hematology (ASH) Annual Meeting in December 2022.
What companies are involved in the development of exa-cel?
Vertex Pharmaceuticals and CRISPR Therapeutics are collaborating on the development of exa-cel.
What conditions are targeted by exa-cel therapy?
Exa-cel is aimed at treating sickle cell disease (SCD) and transfusion-dependent beta thalassemia (TDT).
