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Lonial S, Lee HC, Badros A, Trudel S, Nooka AK, Chari A, Abdallah AO, Callander N, Sborov D, Suvannasankha A, Weisel K, Voorhees PM, Womersley L, Baron J, Piontek T, Lewis E, Opalinska J, Gupta I, Cohen AD. Longer term outcomes with single-agent belantamab mafodotin in patients with relapsed or refractory multiple myeloma: 13-month follow-up from the pivotal DREAMM-2 study. Cancer 2021; 127:4198-4212. [PMID: 34314018 PMCID: PMC8597112 DOI: 10.1002/cncr.33809] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/10/2021] [Accepted: 06/30/2021] [Indexed: 12/18/2022]
Abstract
Background On the basis of the DREAMM‐2 study (ClinicalTrials.gov identifier NCT03525678), single‐agent belantamab mafodotin (belamaf) was approved for patients with relapsed or refractory multiple myeloma (RRMM) who received ≥4 prior therapies, including anti‐CD38 therapy. The authors investigated longer term efficacy and safety outcomes in DREAMM‐2 after 13 months of follow‐up among patients who received belamaf 2.5 mg/kg. Methods DREAMM‐2 is an ongoing, phase 2, open‐label, 2‐arm study investigating belamaf (2.5 or 3.4 mg/kg) in patients with RRMM who had disease progression after ≥3 lines of therapy and were refractory to immunomodulatory drugs and proteasome inhibitors and refractory and/or intolerant to an anti‐CD38 therapy. The primary outcome was the proportion of patients that achieved an overall response, assessed by an independent review committee. Results As of January 31, 2020, 10% of patients still received belamaf 2.5 mg/kg. Thirty‐one of 97 patients (32%; 97.5% confidence interval [CI], 21.7%‐43.6%) achieved an overall response, and 18 responders achieved a very good partial response or better. Median estimated duration of response, overall survival, and progression‐free survival were 11.0 months (95% CI, 4.2 months to not reached), 13.7 months (95% CI, 9.9 months to not reached), and 2.8 months (95% CI, 1.6‐3.6 months), respectively. Response and survival outcomes in patients who had high‐risk cytogenetics or renal impairment were consistent with outcomes in the overall population. Outcomes were poorer in patients with extramedullary disease. In patients who had a clinical response and prolonged dose delays (>63 days; mainly because of corneal events), 88% maintained or deepened responses during their first prolonged dose delay. Overall, there were no new safety signals during this follow‐up. Conclusions Extended follow‐up confirms sustained clinical activity without new safety signals with belamaf in this heavily pretreated patient population with RRMM. Extended follow‐up of patients enrolled in the ongoing phase 2 DREAMM‐2 study confirms sustained clinical activity without new safety signals in patients with relapsed or refractory multiple myeloma who receive belantamab mafodotin 2.5 mg/kg every 3 weeks. These data show that belantamab mafodotin has the potential to shift the treatment paradigm in this heavily pretreated, anti‐CD38 monoclonal antibody–exposed patient population, which has a poor prognosis and few alternative treatment options.
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Affiliation(s)
- Sagar Lonial
- Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Hans C Lee
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ashraf Badros
- Greenebaum Cancer Center, Bone Marrow Transplant Program, University of Maryland at Baltimore, Baltimore, Maryland
| | - Suzanne Trudel
- Princess Margaret Cancer Center, Toronto, Ontario, Canada
| | - Ajay K Nooka
- Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Ajai Chari
- Icahn School of Medicine at Mount Sinai, New York, New York
| | | | | | - Douglas Sborov
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | | | - Katja Weisel
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section of Pneumology, University Medical Center of Hamburg-Eppendorf, Hamburg, Germany
| | - Peter M Voorhees
- Levine Cancer Institute, Atrium Health, Charlotte, North Carolina
| | | | | | | | - Eric Lewis
- GlaxoSmithKline, Research Triangle Park, North Carolina
| | | | - Ira Gupta
- GlaxoSmithKline, Upper Providence, Pennsylvania
| | - Adam D Cohen
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, Pennsylvania
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Abstract
Belantamab mafodotin (BLENREP™; belantamab mafodotin-blmf) is a first-in-class monoclonal antibody-drug conjugate (ADC) that has been developed for the treatment of multiple myeloma by GlaxoSmithKline. The ADC comprises an antibody targeting B-cell maturation antigen (BCMA) conjugated to the microtubule inhibitor monomethyl auristatin F (MMAF). The antibody moiety binds to BCMA on the tumour cell surface, delivering the cytotoxic microtubule inhibitor MMAF to the therapeutic target. Based on preliminary results from the multinational DREAMM-2 trial, belantamab mafodotin was approved in early August 2020 in the USA for the treatment of relapsed or refractory multiple myeloma in adult patients who have received at least four prior therapies, including an anti CD38 monoclonal antibody, a proteasome inhibitor, and an immunomodulatory agent. The ADC was also approved in the EU for this indication in late August 2020. This article summarizes the milestones in the development of belantamab mafodotin leading to this first approval.
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Affiliation(s)
- Anthony Markham
- Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand.
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Nooka AK, Weisel K, van de Donk NW, Routledge D, Otero PR, Song K, Quach H, Callander N, Minnema MC, Trudel S, Jackson NA, Ahlers CM, Im E, Cheng S, Smith L, Hareth N, Ferron-Brady G, Brouch M, Montes de Oca R, Paul S, Holkova B, Gupta I, Kremer BE, Richardson P. Belantamab mafodotin in combination with novel agents in relapsed/refractory multiple myeloma: DREAMM-5 study design. Future Oncol 2021; 17:1987-2003. [PMID: 33682447 DOI: 10.2217/fon-2020-1269] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Belantamab mafodotin (belamaf) is a BCMA-targeted antibody-drug conjugate recently approved as monotherapy for adults with relapsed/refractory multiple myeloma who have received ≥4 prior therapies. Belamaf binds to BCMA and eliminates myeloma cells by multimodal mechanisms of action. The cytotoxic and potential immunomodulatory properties of belamaf have led to novel combination studies with other anticancer therapies. Here, we describe the rationale and design of DREAMM-5, an ongoing Phase I/II platform study evaluating the safety and efficacy of belamaf combined with novel agents, including GSK3174998 (OX40 agonist), feladilimab (an ICOS; GSK3359609), nirogacestat (a gamma-secretase inhibitor; PF-03084014) and dostarlimab (a PD-1 blocker) versus belamaf monotherapy for patients with relapsed/refractory multiple myeloma. Clinical trial registration: NCT04126200 (ClinicalTrials.gov).
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Affiliation(s)
- Ajay K Nooka
- Winship Cancer Institute, Emory University, Atlanta, GA 30322, USA
| | - Katja Weisel
- Department of Oncology, Hematology & Bone Marrow Transplantation, University Medical Center of Hamburg-Eppendorf, Hamburg, 20246, Germany
| | - Niels Wcj van de Donk
- Department of Hematology, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, 1081 HV, The Netherlands
| | - David Routledge
- Peter MacCallum Cancer Centre & Royal Melbourne Hospital, Melbourne, VIC 3000, Australia
| | - Paula Rodriguez Otero
- Centro de Investigación Médica Aplicada, Clínica Universidad de Navarra-Pamplona, Navarra, 31008, Spain
| | - Kevin Song
- Vancouver General Hospital, Vancouver, BC V5Z 1M9, Canada
| | - Hang Quach
- Department of Haematology, University of Melbourne, St. Vincent's Hospital Melbourne, Melbourne, VIC 3065, Australia
| | - Natalie Callander
- Carbone Cancer Center, University of Wisconsin, Madison, WI WI 53705, USA
| | - Monique C Minnema
- Department of Hematology, University Medical Center Utrecht, Utrecht, 3584 CX, The Netherlands
| | - Suzanne Trudel
- Department of Medicine, Division of Medical Oncology & Hematology, Princess Margaret Cancer Centre, Toronto, ON M5G 2C1, Canada
| | | | | | - Ellie Im
- GlaxoSmithKline, Waltham, MA 02451, USA
| | - Shinta Cheng
- SpringWorks Therapeutics, Stamford, CT 06902, USA
| | - L Smith
- SpringWorks Therapeutics, Stamford, CT 06902, USA
| | - Nahi Hareth
- Department of Medicine, Karolinska University Hospital, Stockholm, SE 171 76, Sweden
| | | | - Maria Brouch
- GlaxoSmithKline, Upper Providence, PA 19426, USA
| | | | - Sofia Paul
- GlaxoSmithKline, Upper Providence, PA 19426, USA
| | | | - Ira Gupta
- GlaxoSmithKline, Upper Providence, PA 19426, USA
| | | | - Paul Richardson
- Department of Medical Oncology, Division of Hematologic Malignancies, Dana-Farber Cancer Institute, Boston, MA 02215, USA
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Belantamab Mafodotin to Treat Multiple Myeloma: A Comprehensive Review of Disease, Drug Efficacy and Side Effects. ACTA ACUST UNITED AC 2021; 28:640-660. [PMID: 33494319 PMCID: PMC7924384 DOI: 10.3390/curroncol28010063] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/09/2021] [Accepted: 01/18/2021] [Indexed: 02/06/2023]
Abstract
Multiple myeloma (MM) is a hematologic malignancy characterized by excessive clonal proliferation of plasma cells. The treatment of multiple myeloma presents a variety of unique challenges due to the complex molecular pathophysiology and incurable status of the disease at this time. Given that MM is the second most common blood cancer with a characteristic and unavoidable relapse/refractory state during the course of the disease, the development of new therapeutic modalities is crucial. Belantamab mafodotin (belamaf, GSK2857916) is a first-in-class therapeutic, indicated for patients who have previously attempted four other treatments, including an anti-CD38 monoclonal antibody, a proteosome inhibitor, and an immunomodulatory agent. In November 2017, the FDA designated belamaf as a breakthrough therapy for heavily pretreated patients with relapsed/refractory multiple myeloma. In August 2020, the FDA granted accelerated approval as a monotherapy for relapsed or treatment-refractory multiple myeloma. The drug was also approved in the EU for this indication in late August 2020. Of note, belamaf is associated with the following adverse events: decreased platelets, corneal disease, decreased or blurred vision, anemia, infusion-related reactions, pyrexia, and fetal risk, among others. Further studies are necessary to evaluate efficacy in comparison to other standard treatment modalities and as future drugs in this class are developed.
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Chen Y, Nagarajan C, Tan MS, Martinelli G, Cerchione C. BCMA-targeting approaches for treatment of multiple myeloma. Panminerva Med 2020; 63:28-36. [PMID: 32955181 DOI: 10.23736/s0031-0808.20.04121-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent advances in treatment modalities have led to improved survival in patients with multiple myeloma (MM). However, despite these, MM remains an incurable disease. Many MM patients relapse through and become refractory to current treatment strategies or are intolerant due to toxicities arising from therapy. As such, novel strategies addressing new targets are crucial in improving care for MM patients. BCMA has emerged as a rationale therapeutic target for treatment of MM as it is preferentially expressed in mature B-lymphocytes and plasma cells with the overexpression and activation of BCMA via its ligands associated with the disease progression in multiple myeloma. Given the high expression of BCMA in malignant Plasma cells compared to those from normal healthy volunteers, targeting BCMA should reduce risks of on-target off-tumor toxicities. The main BCMA-targeting approaches currently used for treatment of MM include: 1) chimeric antigen receptor (CAR) T-cell therapy; 2) bi- and multi- specific antibodies; and 3) monoclonal antibodies and their drug conjugates. This review will outline these therapeutic agents and present their emerging clinical data.
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Affiliation(s)
- Yunxin Chen
- Department of Hematology, Singapore General Hospital, Singapore, Singapore - .,SingHealth Duke NUS Blood Cancer Center, Singapore, Singapore -
| | - Chandramouli Nagarajan
- Department of Hematology, Singapore General Hospital, Singapore, Singapore.,SingHealth Duke NUS Blood Cancer Center, Singapore, Singapore
| | - Melinda S Tan
- Department of Hematology, Singapore General Hospital, Singapore, Singapore
| | - Giovanni Martinelli
- Unit of Hematology, IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Forlì-Cesena, Italy
| | - Claudio Cerchione
- Unit of Hematology, IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), Meldola, Forlì-Cesena, Italy
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