Gamida Cell’s Allogeneic Cell Therapy Omisirge® (omidubicel-onlv) Receives FDA Approval
Omisirge is approved by the FDA as a new donor source for allogeneic stem cell transplant
Global, randomized Phase 3 clinical trial showed faster neutrophil recovery and reduced bacterial and fungal infections as compared to standard cord blood
Omisirge may increase access to stem cell transplant, including among patients from diverse backgrounds
Omisirge received breakthrough therapy designation, priority review and orphan drug designation from the FDA, reflecting the unmet need for additional donor sources for stem cell transplant. It is the first allogeneic stem cell transplant therapy to be approved on the basis of a global, randomized Phase 3 clinical study. Please see the accompanying full Prescribing Information for more information.
“FDA approval of Omisirge is a major advancement in the treatment of patients with hematologic malignancies that we believe may increase access to stem cell transplant and help improve patient outcomes,” said
In a global, randomized Phase 3 clinical study, Omisirge demonstrated a median time to neutrophil recovery of 12 days in the intent to treat population, compared to 22 days for standard cord blood (p<0.001).1 Incidence of Grade 2/3 bacterial or Grade 3 fungal infections through 100 days following transplantation occurred in 39% of patients in the Omisirge arm and 60% of patients in the standard cord blood arm.1 The full Phase 3 clinical study results are available in Blood, the official journal of the
More than 40% of the patients in the Omisirge Phase 3 study were racially and ethnically diverse,1 underscoring the degree to which Omisirge may help address health disparities in stem cell transplantation.
“The approval of Omisirge is a significant development in hematopoietic stem cell transplantation,” said
Allogeneic hematopoietic stem cell transplantation offers a potentially curative option for hematologic malignancies including acute myeloid leukemia, acute lymphoblastic leukemia, chronic myeloid leukemia and myelodysplastic syndromes. Allogeneic transplant uses cells from a donor other than the recipient.
Omisirge is manufactured to enhance and expand the number of progenitor cells utilizing proprietary nicotinamide (NAM) technology. This process produces enriched hematopoietic progenitor cells, leading to preservation of their stemness, homing to the bone marrow and retained engraftment capacity.
Omisirge is manufactured in Gamida Cell’s state-of-the-art, fully licensed GMP manufacturing facility in
Omisirge is now available in
Omisirge is a nicotinamide modified allogeneic hematopoietic progenitor cell therapy derived from cord blood indicated for use in adults and pediatric patients 12 years and older with hematologic malignancies who are planned for umbilical cord blood transplantation following myeloablative conditioning to reduce the time to neutrophil recovery and the incidence of infection.
Important Safety Information for Omisirge
BOXED WARNING: INFUSION REACTIONS, GRAFT VERSUS HOST DISEASE, ENGRAFTMENT SYNDROME, AND GRAFT FAILURE
- Infusion reactions may be fatal. Monitor patients during infusion and discontinue for severe reactions. Use is contraindicated in patients with known allergy to dimethyl sulfoxide (DMSO), Dextran 40, gentamicin, human serum albumin or bovine material.
- Graft-versus-Host Disease may be fatal. Administration of immunosuppressive therapy may decrease the risk of GvHD.
- Engraftment syndrome may be fatal. Treat engraftment syndrome promptly with corticosteroids.
- Graft failure may be fatal. Monitor patients for laboratory evidence of hematopoietic recovery.
OMISIRGE is contraindicated in patients with known hypersensitivity to dimethyl sulfoxide (DMSO), Dextran 40, gentamicin, human serum albumin, or bovine products.
Warnings and Precautions
Allergic reactions may occur with the infusion of OMISIRGE. Reactions include bronchospasm, wheezing, angioedema, pruritis and hives. Serious hypersensitivity reactions, including anaphylaxis, may be due to DMSO, residual gentamicin, Dextran 40, human serum albumin (HSA) and bovine material in OMISIRGE. OMISIRGE may contain residual antibiotics if the cord blood donor was exposed to antibiotics in utero. Patients with a history of allergic reactions to antibiotics should be monitored for allergic reactions following OMISIRGE administration.
Infusion reactions occurred following OMISIRGE infusion, including hypertension, mucosal inflammation, dysphagia, dyspnea, vomiting, and gastrointestinal toxicity. Premedication with antipyretics, histamine antagonists, and corticosteroids may reduce the incidence and intensity of infusion reactions. In patients transplanted with OMISIRGE in clinical trials, 47% (55/117) patients had an infusion reaction of any severity. Grade 3-4 infusion reactions were reported in 15% (18/117) patients. Infusion reactions may begin within minutes of the start of infusion of OMISIRGE, although symptoms may continue to intensify and not peak for several hours after the completion of the infusion. Monitor patients for signs and symptoms of infusion reactions during and after OMISIRGE administration. When a reaction occurs, pause the infusion and institute supportive care as needed.
Acute and chronic GvHD, including life-threatening and fatal cases, occurred following treatment with OMISIRGE. In patients transplanted with OMISIRGE Grade II-IV acute GvHD was reported in 58% (68/117). Grade III- IV acute GvHD was reported in 17% (20/117). Chronic GvHD occurred in 35% (41/117) of patients. Acute GvHD manifests as maculopapular rash, gastrointestinal symptoms, and elevated bilirubin. Patients treated with OMISIRGE should receive immunosuppressive drugs to decrease the risk of GvHD, be monitored for signs and symptoms of GvHD, and treated if GvHD develops.
Engraftment syndrome may occur because OMISIRGE is derived from umbilical cord blood. Monitor patients for unexplained fever, rash, hypoxemia, weight gain, and pulmonary infiltrates in the peri-engraftment period. Treat with corticosteroids as soon as engraftment syndrome is recognized to ameliorate symptoms. If untreated, engraftment syndrome may progress to multiorgan failure and death.
Primary graft failure occurred in 3% (4/117) of patients in OMISIRGE clinical trials. Primary graft failure, which may be fatal, is defined as failure to achieve an absolute neutrophil count greater than 500 per microliter blood by Day 42 after transplantation. Immunologic rejection is the primary cause of graft failure. Monitor patients for laboratory evidence of hematopoietic recovery.
Malignancies of Donor Origin
Two patients treated with OMISIRGE developed post-transplant lymphoproliferative disorder (PTLD) in the second-year post-transplant. PTLD manifests as a lymphoma-like disease favoring non-nodal sites. PTLD is usually fatal if not treated. The etiology is thought to be donor lymphoid cells transformed by Epstein-Barr virus (EBV). Serial monitoring of blood for EBV DNA may be warranted in patients with persistent cytopenias. One patient treated with OMISIRGE developed a donor-cell derived myelodysplastic syndrome (MDS) during the fourth-year post-transplant. The natural history is presumed to be the same as that for de novo MDS. Monitor life-long for secondary malignancies. If a secondary malignancy occurs, contact
Transmission of Serious Infections
Transmission of infectious disease may occur because OMISIRGE is derived from umbilical cord blood. Disease may be caused by known or unknown infectious agents. Donors are screened for increased risk of infection, clinical evidence of sepsis, and communicable disease risks associated with xenotransplantation. Maternal and infant donor blood is tested for evidence of donor infection. See full Prescribing Information, Warnings and Precautions, Transmission of Serious Infections for list of testing performed. OMISIRGE is tested for sterility, endotoxin, and mycoplasma. There may be an effect on the reliability of the sterility test results if the cord blood donor was exposed to antibiotics in utero. Product manufacturing includes bovine-derived reagents. All animal-derived reagents are tested for animal viruses, bacteria, fungi, and mycoplasma before use. These measures do not eliminate the risk of transmitting these or other transmissible infectious diseases and disease agents. Test results may be found on the container label and/or in accompanying records. If final sterility results are not available at the time of use, Quality Assurance will communicate any positive results from sterility testing to the physician. Report the occurrence of transmitted infection to
Transmission of Rare Genetic Diseases
OMISIRGE may transmit rare genetic diseases involving the hematopoietic system because it is derived from umbilical cord blood. Cord blood donors have been screened to exclude donors with sickle cell anemia, and anemias due to abnormalities in hemoglobins C, D, and E. Because of the age of the donor at the time cord blood collection takes place, the ability to exclude rare genetic diseases is severely limited.
The most common adverse reactions (incidence > 20%) are infections, GvHD, and infusion reaction.
Please see full Prescribing Information, including Boxed Warning.
Cautionary Note Regarding Forward Looking Statements
This press release contains forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995, including with respect to the potentially life-saving or curative therapeutic and commercial potential of Gamida Cell’s product, Omisirge® (omidubicel-onlv) and with respect to potential increased access to stem cell transplant. Any statement describing Gamida Cell’s goals, expectations, financial or other projections, intentions or beliefs is a forward-looking statement and should be considered an at-risk statement. Such statements are subject to a number of risks, uncertainties and assumptions including those related to clinical, scientific, regulatory and technical developments and those inherent in the process of developing and commercializing product candidates that are safe and effective for use as human therapeutics. In light of these risks and uncertainties, and other risks and uncertainties that are described in the Risk Factors section and other sections of Gamida Cell’s Annual Report on Form 10-K, filed with the
1 Horwitz, M. E., Stiff, P. J., Cutler, C., Brunstein, C., Hanna, R., Maziarz, R. T., Rezvani, A. R., Karris, N. A., McGuirk, J., Valcarcel, D., Schiller, G. J., Lindemans, C. A., Hwang, W. Y., Koh, L. P., Keating, A., Khaled, Y., Hamerschlak, N.,
2 Omisirge [package insert].
3 Why Ethnicity Matters When Donating Bone Marrow. Be The Match. (n.d.). Retrieved
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