Pseudolymphoma

Expanded access program (EAP) data for omidubicel are consistent with Phase 3 trial results on rates of hematopoietic recovery and infections following stem cell transplant with Omisirge® (omidubicel-onlv) Preliminary data presented on GDA-201, Gamida Cell’s natural killer (NK) cell therapy candidate in ongoing Phase 1 study for non-Hodgkin lymphoma, show promising early evidence of anti-tumor activity BOSTON, Feb. 23, 2024 (GLOBE NEWSWIRE) -- Gamida Cell Ltd. (Nasdaq: GMDA), a cell therapy pioneer working to turn cells into powerful therapeutics, today presented data highlighting its expanded access program (EAP) for FDA-approved allogeneic stem cell therapy Omisirge® (omidubicel-onlv) and Phase 1 data for its allogeneic cryopreserved natural killer (NK) cell therapy candidate GDA-201 at the 2024 Tandem Meetings, Transplantation & Cellular Therapy (TCT) Meetings of the American Society for Transplantation and Cellular Therapy (ASTCT) and the Center for International Blood and Marrow Transplant Research (CIBMTR). The hybrid meetings take place February 21-24 virtually and in person in San Antonio, Texas. “The data presented at Tandem provide further evidence of the potential of Gamida Cell’s nicotinamide (NAM) technology to develop potentially curative therapies by expanding and enhancing cells,” said Ronit Simantov, MD, Chief Medical and Scientific Officer of Gamida Cell. “The EAP study provided the opportunity to treat patients after completion of enrollment of the Phase 3 trial and prior to the approval of Omisirge. It allowed for institutional variability in conditioning regimens and supportive care, more closely reflecting the real-world environment. Data were consistent with previous studies, showing that patients transplanted with omidubicel had rapid hematopoietic recovery and a low rate of serious infections post-transplant.” “The Phase 1 data on our natural killer (NK) cell candidate GDA-201 further support the anti-tumor activity of our NAM-enhanced cellular therapy, and today marked the first presentation of study results using our cryopreserved, readily available formulation,” Simantov added. Reporting on omidubicel’s EAP data, principal investigator Mitchell E. Horwitz, MD, Stem Cell Transplant Specialist and Professor of Medicine at Duke Cancer Institute, said, “I am highly encouraged by the results in the omidubicel expanded access program. The potential for rapid hematopoietic recovery post-transplant observed with omidubicel could make a meaningful impact on patient health. I am pleased to see that the EAP results are consistent with data from the Phase 3 study.” Additional details on the presentations are as follows: Title: Omidubicel-onlv for Allogeneic Transplantation (allo-HCT) in Patients with Hematologic Malignancies: Results of a Multicenter Open-Label Expanded Access Program (EAP)Abstract Number: 313Lead Author: Mitchell E. Horwitz, MD, Stem Cell Transplant Specialist and Professor of Medicine at Duke Cancer InstituteTime: February 22, 6:45-7:45 p.m. CT Presentation highlights: In this expanded access program (EAP) evaluating outcomes in 29 patients with hematologic malignancies following allogeneic hematopoietic stem cell transplant with omidubicel, outcomes were overall consistent with those from omidubicel’s Phase 3 study. Eligible patients ≥12 years of age received myeloablative conditioning, prophylactic medications and supportive care per individual institutional standards. Median time to neutrophil and platelet engraftment were 12 and 34 days, respectively. Results were also similar to the Phase 3 study for infection (first grade 2-3 bacterial / invasive fungal infections at 100 days posttransplant: 18%), graft-versus-host-disease (grades 3-4: 19%), disease-free survival (79%) and overall survival (87%). Demographics of transplanted patients were 55% White, 21% Asian, 17% Black, and 7% other, consistent with the Phase 3 trial, in which >40% of the study participants were racially or ethnically diverse. Omidubicel was approved under the brand name Omisirge® (omidubicel-onlv) by the U.S. FDA in April 2023 for allogeneic stem cell transplant. Title: A Phase I/II Study of GDA-201, Cryopreserved Nicotinamide-Enhanced Allogeneic Natural Killer Cells, in Patients with Relapsed/Refractory B-cell LymphomaAbstract Number: 255Lead Author: Brian C. Shaffer, Associate Professor of Medicine and Head of the Adult Mismatched Donor Sub-Program at Memorial Sloan Kettering Cancer Center in New YorkDate and Time: February 22, 6:45-7:45 p.m. CT Presentation highlights: In this ongoing multicenter Phase 1 study of allogeneic cryopreserved NK cell therapy candidate GDA-201 in patients with relapsed/refractory B-cell CD20 positive non-Hodgkin lymphoma, preliminary data for the first 12 patients were presented. Patients were heavily pretreated with a median of six prior lines of therapy including CAR-T cell therapy and hematopoietic stem cell transplant. Patients were treated with doses up to 2x108 cells/kg GDA-201 in combination with rituximab. There were no infusion reactions, dose-limiting toxicities or related serious adverse events. Seven patients exhibited a decrease in tumor burden. Efficacy evaluation using Lugano criteria showed three patients with complete response, two with partial response and two with stable disease. Cytokine release syndrome was reported in two patients (grade 1 and grade 2, respectively). There were no cases of immune effector cell associated neurotoxicity syndrome or graft versus host disease reported. Treatment and evaluation of patients in the fourth cohort of the study at the highest dose level of 2x108 cells/kg is ongoing. Full results are expected in Q1 2024. Posters are available at: https://www.gamida-cell.com/our-rd/ About Gamida CellGamida Cell is a cell therapy pioneer working to turn cells into powerful therapeutics. The company’s proprietary nicotinamide (NAM) technology leverages the properties of NAM to enhance and expand cells, creating allogeneic cell therapy products and candidates that are potentially curative for patients with hematologic malignancies. These include Omisirge® (omidubicel-onlv), an FDA-approved nicotinamide modified allogeneic hematopoietic progenitor cell therapy, and GDA-201, an intrinsic NK cell therapy candidate being investigated for the treatment of hematologic malignancies. For additional information, please visit www.gamida-cell.com or follow Gamida Cell on LinkedIn, X, Facebook or Instagram. About GDA-201GDA-201 is an intrinsic NK cell therapy candidate being investigated for the treatment of hematologic malignancies. NAM-modified NK cells have previously been shown to have enhanced metabolic fitness, resistance to oxidative stress and potent cytotoxicity. A multicenter Phase 1 study of GDA-201 for the treatment of non-Hodgkin lymphoma is ongoing (NCT05296525). Results are expected in Q1 2024. GDA-201 is an investigational cell therapy candidate, and its safety and efficacy have not been established by the FDA or any other health authority. Omisirge® (omidubicel-onlv) IndicationOmisirge 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. ContraindicationsOMISIRGE is contraindicated in patients with known hypersensitivity to dimethyl sulfoxide (DMSO), Dextran 40, gentamicin, human serum albumin, or bovine products. Warnings and PrecautionsHypersensitivity ReactionsAllergic 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 ReactionsInfusion 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. Graft-versus-Host DiseaseAcute 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 SyndromeEngraftment 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. Graft FailurePrimary 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 OriginTwo 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 Gamida Cell at (844) 477-7478. Transmission of Serious InfectionsTransmission 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 Gamida Cell at (844) 477-7478. Transmission of Rare Genetic DiseasesOMISIRGE 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. ADVERSE REACTIONSThe most common adverse reactions (incidence > 20%) are infections, GvHD, and infusion reaction. Please see full Prescribing Information, including Boxed Warning. About Gamida CellGamida Cell is a cell therapy pioneer working to turn cells into powerful therapeutics. The company’s proprietary nicotinamide (NAM) technology leverages the properties of NAM to enhance and expand cells, creating allogeneic cell therapy products and candidates that are potentially curative for patients with hematologic malignancies. These include Omisirge® (omidubicel-onlv), an FDA-approved nicotinamide modified allogeneic hematopoietic progenitor cell therapy, and GDA-201, an intrinsic NK cell therapy candidate being investigated for the treatment of hematologic malignancies. For additional information, please visit www.gamida-cell.com or follow Gamida Cell on LinkedIn, Facebook, X and Instagram. Cautionary Note Regarding Forward-Looking StatementsThis press release may contain 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 Omisirge® (omidubicel-onlv), and the Company’s cell therapy candidate, GDA-201. 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 Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) on November 14, 2023, and other filings that Gamida Cell makes with the SEC from time to time (which are available at www.sec.gov), the events and circumstances discussed in such forward-looking statements may not occur, and Gamida Cell’s actual results could differ materially and adversely from those anticipated or implied thereby. Although Gamida Cell’s forward-looking statements reflect the good faith judgment of its management, these statements are based only on facts and factors currently known by Gamida Cell. As a result, you are cautioned not to rely on these forward-looking statements. Omisirge® is a registered mark of Gamida Cell Inc. © 2024 Gamida Cell Inc. All Rights Reserved. Media Contact:  Dan Boyle  Orangefiery  media@orangefiery.com1-818-209-1692  Investor Contact:  Chuck Padala  LifeSci Advisors  Chuck@lifesciadvisors.com1-646-627-8390

BOSTON, Nov. 27, 2023 (GLOBE NEWSWIRE) -- Gamida Cell Ltd. (Nasdaq: GMDA), a cell therapy pioneer working to turn cells into powerful therapeutics, is hosting a virtual fireside chat with thought leader Gary Schiller, MD, FACP, Professor of Medicine and Director of the Hematological Malignancy & Stem Cell Transplant Program at the David Geffen School of Medicine at University of California – Los Angeles. Dr. Schiller will discuss his experience working with patients in need of allogeneic stem cell transplant, as well as the patient journey from diagnosis to transplant, the decision-making process for donor source selection, and his experience with Omisirge® (omidubicel-onlv) since its FDA approval. A live question and answer session will follow the fireside chat. Details are as follows: Virtual Thought Leader Fireside Chat Monday, December 4, 2023, at 4:30 – 5:15 p.m. ET Click here to register. A replay of the event may be accessed on the Events and Presentations page under the Investors section of the Gamida Cell website. This event is intended for institutional investors, sell-side research analysts and business development professionals only. About Gary Schiller, MD, FACP Gary Schiller, MD, FACP is the Director of the Hematological Malignancy/Stem Cell Transplant Program at the David Geffen School of Medicine at UCLA, supervising 150-200 transplants per year. He has extensive clinical research experience, having conducted investigator-initiated and multicenter trials, mostly in hematologic malignancies and Blood and Marrow Transplantation. He is past Chair of the Faculty Executive Committee for the School of Medicine at UCLA. He is an author of over 225 publications and 450 abstracts and presented in more than 350 events. He has mentored residents, medical students, and fellows for more than 30 years. He served as a member and Chair of the Committee on Training for the American Society of Hematology, worked with its Trainee Council developing programs for the national meeting of the Society and curriculum for its Trainee Day, and is Chair of the ASH Foundation committee. Dr. Schiller has an outstanding track record in clinical research, teaching, and mentoring. He was co-investigator on Alternative Training grant for Bone Marrow Failure syndromes and developed the Sickle Hemoglobinopathy program at UCLA. He also has extensive experience outside of medicine with nonprofit, charitable institutions. He has served on the Board of Trustees of Wilshire Boulevard Temple, and was Chairman of the Los Angeles Museum of the Holocaust. Dr. Schiller has 30 years of experience in the diagnosis and management of adults with hematologic malignancies and those undergoing allogeneic stem cell transplantation for non-malignant disorders. Omisirge® (omidubicel-onlv) Indication 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. Contraindications OMISIRGE is contraindicated in patients with known hypersensitivity to dimethyl sulfoxide (DMSO), Dextran 40, gentamicin, human serum albumin, or bovine products. Warnings and Precautions Hypersensitivity Reactions 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 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. Graft-versus-Host Disease 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 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. Graft Failure 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 Gamida Cell at (844) 477-7478. 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 Gamida Cell at (844) 477-7478. 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. ADVERSE REACTIONS The most common adverse reactions (incidence > 20%) are infections, GvHD, and infusion reaction. Please see full Prescribing Information, including Boxed Warning. About Gamida Cell Gamida Cell is a cell therapy pioneer working to turn cells into powerful therapeutics. The company’s proprietary nicotinamide (NAM) technology leverages the properties of NAM to enhance and expand cells, creating allogeneic cell therapy products and candidates that are potentially curative for patients with hematologic malignancies. These include Omisirge® (omidubicel-onlv), an FDA-approved nicotinamide modified allogeneic hematopoietic progenitor cell therapy, and GDA-201, an intrinsic NK cell therapy candidate being investigated for the treatment of hematologic malignancies. For additional information, please visit or follow Gamida Cell on LinkedIn, Facebook, Twitter and Instagram. Cautionary Note Regarding Forward-Looking Statements This press release may contain 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 Omisirge® (omidubicel-onlv). 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 Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) on November 14, 2023, and other filings that Gamida Cell makes with the SEC from time to time (which are available at ), the events and circumstances discussed in such forward-looking statements may not occur, and Gamida Cell’s actual results could differ materially and adversely from those anticipated or implied thereby. Although Gamida Cell’s forward-looking statements reflect the good faith judgment of its management, these statements are based only on facts and factors currently known by Gamida Cell. As a result, you are cautioned not to rely on these forward-looking statements. Omisirge® is a registered trademark of Gamida Cell Inc. © 2023 Gamida Cell Inc. All Rights Reserved. Investor Contacts: Chuck Padala LifeSci Advisors chuck@lifesciadvisors.com 1-646-627-8390 Media Contact: Dan Boyle Orangefiery media@orangefiery.com 1-818-209-1692 Source: Gamida Cell, Ltd

Data further characterize the mechanism for Gamida Cell’s proprietary nicotinamide (NAM) technology’s expansion and enhancement of cellsBOSTON, Nov. 04, 2023 (GLOBE NEWSWIRE) -- Gamida Cell Ltd. (Nasdaq: GMDA), a cell therapy pioneer working to turn cells into powerful therapeutics, today shared new data on the impact of the company’s proprietary nicotinamide (NAM) technology on its allogeneic stem cell therapy omidubicel and investigational natural killer (NK) cell therapy candidate GDA-201 at the Society for Immunotherapy of Cancer’s (SITC) Annual Meeting in San Diego, CA. Both omidubicel and GDA-201 are powered by Gamida Cell’s proprietary NAM technology, which enhances and expands cells to create potentially curative cell therapies for patients with cancer. Omidubicel was approved under the brand name Omisirge™ (omidubicel-onlv) by the U.S. FDA in April 2023 for allogeneic stem cell transplant; GDA-201 is in Phase 1 study for the treatment of non-Hodgkin lymphoma (NCT05296525). Data on the first three cohorts of the Phase 1 study of GDA-201 were recently reported. “The data presented at SITC further our understanding of the effect of NAM in enhancing and expanding cells,” said Ronit Simantov, MD, Chief Medical and Scientific Officer of Gamida Cell. “Our data characterize the unique cellular composition of omidubicel, which is enriched in myeloid populations and dendritic cells, providing a potential mechanism for rapid engraftment and immune reconstitution, and is associated with lower infection rates observed in patients transplanted with omidubicel. Similarly, our data on GDA-201 demonstrate the unique, active phenotype of our NK cells expanded in the presence of NAM.” Additional details are as follows: Title: Significant myeloid and dendritic cellular enrichment of omidubicel graft suggests fast homeostatic proliferation of lymphoid populations Abstract number: 336 Presenting author: Dima Yackoubov Time: Saturday, November 4, 2023, 9:00 a.m. – 8:30 p.m. PDT Location: Exhibit Halls A and B1 Highlights: In this study, immunophenotyping was used to evaluate and characterize the cellular populations in the cultured fraction (CF) and non-cultured fraction (NF) of omidubicel (manufactured with Gamida Cell’s proprietary NAM technology) compared to standard umbilical cord blood (UCB). Manufacturing significantly increased the total nucleated cells (1.2-1.6-fold) and myeloid cells (2.2-3.6-fold) in the omidubicel CF compared to UCB. In addition, high resolution analysis of the CF showed a 25-62-fold increase in myeloid populations and dendritic cells and an absence of mature lymphoid cell populations. The NF was found to contain 50-70% fewer total with a comparable percentage of T cells, B cells, NK cells and NK-T cells to UCB. The results of this phenotypic characterization of omidubicel provide a potential mechanism for the rapid engraftment and immune reconstitution observed in transplanted patients. Title: GDA-201, nicotinamide (NAM) expanded NK cells derived from peripheral apheresis, show unique culture kinetics and increased expansion Abstract number: 401 Presenting author: Avner Yeffet, Ph.D. Time: Friday, November 3, 2023, 9:00 a.m. – 7:00 p.m. PDT Location: Exhibit Halls A and B1 Highlights: This study evaluated the impact of Gamida Cell’s NAM technology on NK cell kinetics. During the first days of expansion, NAM increased the survival of the feeder cells (45% on day 2-3 vs 13% on day 2-3) and prolonged their support in NK cell expansion, resulting in higher fold expansion persisting up to 21 days. In addition, NK cells expanded using NAM showed significantly higher cytotoxicity against leukemia cells (from a killing cytotoxicity function of 62.54% without NAM to 81.84% with NAM), and preservation of the NK cells in a partially mature state with low expression of CD57. These data provide further evidence for the unique cell culture kinetics of NAM-NK cells, GDA-201, which is currently being evaluated in a Phase 1 clinical trial in patients with non-Hodgkin lymphoma. About GDA-201GDA-201 is an intrinsic NK cell therapy candidate being investigated for the treatment of hematologic malignancies. A multicenter Phase 1 study of GDA-201 for the treatment of non-Hodgkin lymphoma is ongoing (NCT05296525). Results are expected in Q1 2024. GDA-201 is an investigational cell therapy candidate, and its safety and efficacy have not been established by the FDA or any other health authority. Omisirge™ (omidubicel-onlv) Indication 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. Contraindications OMISIRGE is contraindicated in patients with known hypersensitivity to dimethyl sulfoxide (DMSO), Dextran 40, gentamicin, human serum albumin, or bovine products. Warnings and Precautions Hypersensitivity ReactionsAllergic 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 ReactionsInfusion 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. Graft-versus-Host DiseaseAcute 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 SyndromeEngraftment 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. Graft FailurePrimary 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 OriginTwo 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 Gamida Cell at (844) 477-7478. Transmission of Serious InfectionsTransmission 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 Gamida Cell at (844) 477-7478. Transmission of Rare Genetic DiseasesOMISIRGE 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. ADVERSE REACTIONS The most common adverse reactions (incidence > 20%) are infections, GvHD, and infusion reaction. Please see full , including Boxed Warning. About Gamida Cell Gamida Cell is a cell therapy pioneer working to turn cells into powerful therapeutics. The company’s proprietary nicotinamide (NAM) technology leverages the properties of NAM to enhance and expand cells, creating allogeneic cell therapy products and candidates that are potentially curative for patients with hematologic malignancies. These include Omisirge™ (omidubicel-onlv), an FDA-approved nicotinamide modified allogeneic hematopoietic progenitor cell therapy, and GDA-201, an intrinsic NK cell therapy candidate being investigated for the treatment of hematologic malignancies. For additional information, please visit www.gamida-cell.com or follow Gamida Cell on LinkedIn, X, Facebook or Instagram. 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 Omisirge™ (omidubicel-onlv), and the Company’s cell therapy candidate, GDA-201. 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 Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (SEC) on August 14, 2023, and other filings that Gamida Cell makes with the SEC from time to time (which are available at www.sec.gov), the events and circumstances discussed in such forward-looking statements may not occur, and Gamida Cell’s actual results could differ materially and adversely from those anticipated or implied thereby. Although Gamida Cell’s forward-looking statements reflect the good faith judgment of its management, these statements are based only on facts and factors currently known by Gamida Cell. As a result, you are cautioned not to rely on these forward-looking statements. OMISIRGE™ is a trademark of Gamida Cell Inc. © 2023 Gamida Cell Inc. All Rights Reserved Media Contact: Dan Boyle Orangefiery media@orangefiery.com 1-818-209-1692 Investor Contact: Chuck Padala LifeSci Advisors Chuck@lifesciadvisors.com 1-646-627-8390