Forty Seven and Rocket Pharmaceuticals Announce Research Collaboration for Fanconi Anemia – BioSpace
By daniellenierenberg
MENLO PARK, Calif. and NEW YORK, March 11, 2020 (GLOBE NEWSWIRE) -- Forty Seven Inc. (Nasdaq: FTSV) and Rocket Pharmaceuticals Inc. (Nasdaq: RCKT) announced today that they have entered into a research collaboration to pursue clinical proof-of-concept for Forty Sevens novel antibody-based conditioning regimen, FSI-174 (anti-cKIT antibody) plus magrolimab (anti-CD47 antibody), with Rockets ex vivo lentiviral vector hematopoietic stem cell (LVV HSC) gene therapy, RP-L102. The initial collaboration will evaluate this treatment regimen in Fanconi Anemia (FA), a genetic disease that affects patients capacity to produce blood cells and is associated with an increased risk of leukemia and other neoplasms. RP-L102, Rockets gene therapy approach for FA, involves treatment with patients own gene-corrected blood forming stem cells (hematopoietic stem cells, or HSCs).
Gene therapies for monogenic blood disorders have broad potential. One concern associated with these treatments is the toxicity of pre-therapy conditioning regimens that utilize cytotoxic chemotherapy and/or radiation to destroy existing HSCs and facilitate engraftment of gene-corrected HSCs. Forty Sevens all-antibody based conditioning regimen is designed to address the limitations of current pre-treatment conditioning therapies. These regimens are often associated with serious side effects, including severe infection, cognitive impairment, infertility, endocrine dysfunction, secondary malignancies and organ damage. These toxicities are especially difficult for pediatric patients and are particularly severe for patients with FA, who are more sensitive to the DNA-damaging effects of traditional conditioning agents. Preliminary data demonstrate that RP-L102 may confer efficacy without pre-treatment conditioning. The combination of RP-L102 with Forty Sevens all-antibody conditioning regimen may provide patients an alternate treatment option in situations where conditioning may be advantageous.
We are pleased to enter into this collaboration with Forty Seven, said Jonathan Schwartz, M.D., Chief Medical Officer and Senior Vice President of Rocket. RP-L102 Process B is currently being evaluated in a registrational trial without the use of conditioning. In parallel, we are assessing incorporation of a non-genotoxic conditioning regimen as a part of Rockets life-cycle management strategy. Forty Sevens novelall-antibodyconditioning regimen could also beapplied to Rockets other lentiviral programs, in which conditioning is more integral to the gene therapy approach.
We are initiating our first in human healthy volunteer study of FSI-174 in the first quarter this year, and are excited to enter into a partnership with Rocket at this time. Rocket is at the forefront of developing gene therapies for high unmet-need diseases, and this collaboration will provide an opportunity to evaluate the benefit of Forty Sevens novel conditioning regimen with Rockets RP-L102 to help FA patients, says Jens-Peter Volkmer, VP of Research at Forty Seven.
This collaboration is in line with our strategy to study our anti-cKIT and anti-CD47, all-antibody conditioning regimen in combination with several different gene therapies, and to establish clinical proof-of-concept in a broad range of transplant indications, said Mukul Agarwal, VP of Corporate Development at Forty Seven.
Maria Grazia Roncarolo, M.D., Scientific Advisor to Forty Seven, commented, The goal of my lifes work is to bring pediatric patients transformative therapies for currently incurable diseases. We believe Rocket Pharmaceuticals commitment to devastating diseases, such as FA, addresses a critical unmet need and Forty Sevens antibody conditioning creates an alternative avenue to deliver this therapy to those patients. We look forward to seeing how this collaboration may help patients in need.
Under the terms of the agreement, Rocket will provide its ex vivo LVV HSC gene therapy platform and Forty Seven will contribute its innovative antibody-based conditioning regimen for the collaboration.
About FSI-174 and MagrolimabFSI-174 is a humanized monoclonal antibody targeting cKIT, which is a receptor that is highly expressed on hematopoietic stem cells. Magrolimab is a humanized monoclonal antibody targeting CD47, which is a dont eat me signal to macrophages and is expressed on all cells. Magrolimab is currently being investigated in Phase 2 clinical trials to treat cancer and has established clinical efficacy in four indications, including myelodysplastic syndrome, acute myeloid leukemia, diffuse large B cell lymphoma and follicular lymphoma, with a favorable safety profile in over 400 patients treated, including some patients treated continuously for over two years. When combined, FSI-174 sends a positive signal to macrophages to target blood forming stem cells for removal and magrolimab disengages inhibitory signals that block phagocytosis. Combination of these antibodies has shown efficient removal of blood forming stem cells, allowing for transplantation in pre-clinical models.
About Fanconi Anemia Fanconi Anemia (FA) is a rare pediatric disease characterized by bone marrow failure, malformations and cancer predisposition. The primary cause of death among patients with FA is bone marrow failure, which typically occurs during the first decade of life. Allogeneic hematopoietic stem cell transplantation (HSCT), when available, corrects the hematologic component of FA, but requires myeloablative conditioning. Graft-versus-host disease, a known complication of allogeneic HSCT, is associated with an increased risk of solid tumors, mainly squamous cell carcinomas of the head and neck region. Approximately 60-70% of patients with FA have aFANC-Agene mutation, which encodes for a protein essential for DNA repair. Mutation in theFANC-Agene leads to chromosomal breakage and increased sensitivity to oxidative and environmental stress. Chromosome fragility induced by DNA-alkylating agents such as mitomycin-C (MMC) or diepoxybutane (DEB) is the gold standard test for FA diagnosis. Somatic mosaicism occurs when there is a spontaneous correction of the mutated gene that can lead to stabilization or correction of a FA patients blood counts in the absence of any administered therapy. Somatic mosaicism, often referred to as natural gene therapy provides a strong rationale for the development of FA gene therapy because of the selective growth advantage of gene-corrected hematopoietic stem cells over FA cells1.
1Soulier, J.,et al. (2005) Detection of somatic mosaicism and classification of Fanconi anemia patients by analysis of the FA/BRCA pathway. Blood 105: 1329-1336
About Rocket Pharmaceuticals, Inc. Rocket Pharmaceuticals, Inc. (Nasdaq: RCKT) (Rocket) is advancing an integrated and sustainable pipeline of genetic therapies that correct the root cause of complex and rare childhood disorders. The companys platform-agnostic approach enables it to design the best therapy for each indication, creating potentially transformative options for patients contending with rare genetic diseases. Rocket's clinical programs using lentiviral vector (LVV)-based gene therapy are for the treatment of Fanconi Anemia (FA), a difficult to treat genetic disease that leads to bone marrow failure and potentially cancer, Leukocyte Adhesion Deficiency-I (LAD-I), a severe pediatric genetic disorder that causes recurrent and life-threatening infections which are frequently fatal, and Pyruvate Kinase Deficiency (PKD) a rare, monogenic red blood cell disorder resulting in increased red cell destruction and mild to life-threatening anemia. Rockets first clinical program using adeno-associated virus (AAV)-based gene therapy is for Danon disease, a devastating, pediatric heart failure condition. Rockets pre-clinical pipeline program is for Infantile Malignant Osteopetrosis (IMO), a bone marrow-derived disorder. For more information about Rocket, please visitwww.rocketpharma.com.
For more information, please visit http://www.rocketpharma.com or contact info@rocketpharma.com
About Forty Seven, Inc.Forty Seven, Inc.is a clinical-stage immuno-oncology company that is developing therapies targeting cancer immune evasion pathways based on technology licensed fromStanford University. Forty Sevens lead program, magrolimab, is a monoclonal antibody against the CD47 receptor, a dont eat me signal that cancer cells commandeer to avoid being ingested by macrophages. This antibody is currently being evaluated in multiple clinical studies in patients with myelodysplastic syndrome, acute myeloid leukemia, and non-Hodgkins lymphoma.
For more information, please visitwww.fortyseveninc.comor contactinfo@fortyseveninc.com.
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Rocket Cautionary Statement Regarding Forward-Looking StatementsVarious statements in this release concerning Rocket's future expectations, plans and prospects, including without limitation, Rocket's expectations regarding the safety, effectiveness and timing of product candidates that Rocket may develop, to treat Fanconi Anemia (FA), Leukocyte Adhesion Deficiency-I (LAD-I), Pyruvate Kinase Deficiency (PKD), Infantile Malignant Osteopetrosis (IMO) and Danon Disease, and the safety, effectiveness and timing of related pre-clinical studies and clinical trials, may constitute forward-looking statements for the purposes of the safe harbor provisions under the Private Securities Litigation Reform Act of 1995 and other federal securities laws and are subject to substantial risks, uncertainties and assumptions. You should not place reliance on these forward-looking statements, which often include words such as "believe," "expect," "anticipate," "intend," "plan," "will give," "estimate," "seek," "will," "may," "suggest" or similar terms, variations of such terms or the negative of those terms. Although Rocket believes that the expectations reflected in the forward-looking statements are reasonable, Rocket cannot guarantee such outcomes. Actual results may differ materially from those indicated by these forward-looking statements as a result of various important factors, including, without limitation, Rocket's ability to successfully demonstrate the efficacy and safety of such products and pre-clinical studies and clinical trials, its gene therapy programs, the preclinical and clinical results for its product candidates, which may not support further development and marketing approval, the potential advantages of Rocket's product candidates, actions of regulatory agencies, which may affect the initiation, timing and progress of pre-clinical studies and clinical trials of its product candidates, Rocket's and its licensors ability to obtain, maintain and protect its and their respective intellectual property, the timing, cost or other aspects of a potential commercial launch of Rocket's product candidates, Rocket's ability to manage operating expenses, Rocket's ability to obtain additional funding to support its business activities and establish and maintain strategic business alliances and new business initiatives, Rocket's dependence on third parties for development, manufacture, marketing, sales and distribution of product candidates, the outcome of litigation, and unexpected expenditures, as well as those risks more fully discussed in the section entitled "Risk Factors" in Rocket's Annual Report on Form 10-K for the year ended December 31, 2019, filed March 6, 2020 with the SEC. Accordingly, you should not place undue reliance on these forward-looking statements. All such statements speak only as of the date made, and Rocket undertakes no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise.
Forty Seven Cautionary Statement Regarding Forward-Looking StatementsStatements contained in this press release regarding matters that are not historical facts are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as will, may, assess, could, believe, and similar expressions (as well as other words or expressions referencing future events, conditions, or circumstances) are intended to identify forward-looking statements. These statements include those related to the research and development plans for Rockets and Forty Sevens respective platforms and product candidates, the timing and success of Forty Sevens collaboration with Rocket, Forty Sevens plans to pursue clinical proof-of-concept for FSI-174 plus magrolimab with the LVV HSC gene therapy platform, the focus on diseases that have the potential to be corrected with the combination of RP-L102 and Forty Sevens all-antibody conditioning regimen, the tolerability and efficacy of RP-L102, FSI-174 and magrolimab, the timing and success of any future collaborations between Forty Seven and Rocket, Forty Sevens plans to continue development of FSI-174 plus magrolimab, as well as related timing for clinical trials of the same.
Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. The product candidates that Forty Seven develops may not progress through clinical development or receive required regulatory approvals within expected timelines or at all.In addition, clinical trials may not confirm any safety, potency or other product characteristics described or assumed in this press release. Such product candidates may not be beneficial to patients or successfully commercialized. The failure to meet expectations with respect to any of the foregoing matters may have a negative effect on Forty Seven's stock price. Additional information concerning these and other risk factors affecting Forty Seven's business can be found in Forty Seven's periodic filings with theSecurities and Exchange Commissionatwww.sec.gov. These forward-looking statements are not guarantees of future performance and speak only as of the date hereof, and, except as required by law, Forty Seven disclaims any obligation to update these forward-looking statements to reflect future events or circumstances.
Forty SevenInvestors:Hannah Deresiewicz, (212) 362-1200hannah.deresiewicz@sternir.com
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Forty Seven and Rocket Pharmaceuticals Announce Research Collaboration for Fanconi Anemia - BioSpace
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