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Mai EK, Goldschmid H, Miah K, Bertsch U, Besemer B, Hänel M, Krzykalla J, Fenk R, Schlenzka J, Munder M, Dürig J, Blau IW, Huhn S, Hose D, Jauch A, Kunz C, Mann C, Weinhold N, Scheid C, Schroers R, von Metzler I, Schieferdecker A, Thomalla J, Reimer P, Mahlberg R, Graeven U, Kremers S, Martens UM, Kunz C, Hensel M, Benner A, Seidel-Glätzer A, Weisel KC, Raab MS, Salwender HJ. Elotuzumab, lenalidomide, bortezomib, dexamethasone, and autologous haematopoietic stem-cell transplantation for newly diagnosed multiple myeloma (GMMG-HD6): results from a randomised, phase 3 trial. Lancet Haematol 2024; 11:e101-e113. [PMID: 38302221 DOI: 10.1016/s2352-3026(23)00366-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND The aim of this trial was to investigate the addition of the anti-SLAMF7 monoclonal antibody elotuzumab to lenalidomide, bortezomib, and dexamethasone (RVd) in induction and consolidation therapy as well as to lenalidomide maintenance treatment in transplant-eligible patients with newly diagnosed multiple myeloma. METHODS GMMG-HD6 was a phase 3, randomised trial conducted at 43 main trial sites and 26 associated trial sites throughout Germany. Adult patients (aged 18-70 years) with previously untreated, symptomatic multiple myeloma, and a WHO performance status of 0-3, with 3 being allowed only if caused by myeloma disease and not by comorbid conditions, were randomly assigned 1:1:1:1 to four treatment groups. Induction therapy consisted of four 21-day cycles of RVd (lenalidomide 25 mg orally on days 1-14; bortezomib 1·3 mg/m2 subcutaneously on days 1, 4, 8, and 11]; and dexamethasone 20 mg orally on days 1, 2, 4, 5, 8, 9, 11, 12, and 15 for cycles 1-2) or, RVd induction plus elotuzumab (10 mg/kg intravenously on days 1, 8, and 15 for cycles 1-2, and on days 1 and 11 for cycles 3-4; E-RVd). Autologous haematopoietic stem-cell transplantation was followed by two 21-day cycles of either RVd consolidation (lenalidomide 25 mg orally on days 1-14; bortezomib 1·3 mg/m2 subcutaneously on days 1, 8, and 15; and dexamethasone 20 mg orally on days 1, 2, 8, 9, 15, and 16) or elotuzumab plus RVd consolidation (with elotuzumab 10 mg/kg intravenously on days 1, 8, and 15) followed by maintenance with either lenalidomide (10 mg orally on days 1-28 for cycles 1-3; thereafter, up to 15 mg orally on days 1-28; RVd/R or E-RVd/R group) or lenalidomide plus elotuzumab (10 mg/kg intravenously on days 1 and 15 for cycles 1-6, and on day 1 for cycles 7-26; RVd/E-R or E-RVd/E-R group) for 2 years. The primary endpoint was progression-free survival analysed in a modified intention-to-treat (ITT) population. Safety was analysed in all patients who received at least one dose of trial medication. This trial is registered with ClinicalTrials.gov, NCT02495922, and is completed. FINDINGS Between June 29, 2015, and on Sept 11, 2017, 564 patients were included in the trial. The modified ITT population comprised 559 (243 [43%] females and 316 [57%] males) patients and the safety population 555 patients. After a median follow-up of 49·8 months (IQR 43·7-55·5), there was no difference in progression-free survival between the four treatment groups (adjusted log-rank p value, p=0·86), and 3-year progression-free survival rates were 69% (95% CI 61-77), 69% (61-76), 66% (58-74), and 67% (59-75) for patients treated with RVd/R, RVd/E-R, E-RVd/R, and E-RVd/E-R, respectively. Infections (grade 3 or worse) were the most frequently observed adverse event in all treatment groups (28 [20%] of 137 for RVd/R; 32 [23%] of 138 for RVd/E-R; 35 [25%] of 138 for E-RVd/R; and 48 [34%] of 142 for E-RVd/E-R). Serious adverse events (grade 3 or worse) were observed in 68 (48%) of 142 participants in the E-RVd/E-R group, 53 (39%) of 137 in the RVd/R, 53 (38%) of 138 in the RVd/E-R, and 50 (36%) of 138 in the E-RVd/R (36%) group. There were nine treatment-related deaths during the study. Two deaths (one sepsis and one toxic colitis) in the RVd/R group were considered lenalidomide-related. One death in the RVd/E-R group due to meningoencephalitis was considered lenalidomide and elotuzumab-related. Four deaths (one pulmonary embolism, one septic shock, one atypical pneumonia, and one cardiovascular failure) in the E-RVd/R group and two deaths (one sepsis and one pneumonia and pulmonary fibrosis) in the E-RVd/E-R group were considered related to lenalidomide or elotuzumab, or both. INTERPRETATION Addition of elotuzumab to RVd induction or consolidation and lenalidomide maintenance in patients with transplant-eligible newly diagnosed multiple myeloma did not provide clinical benefit. Elotuzumab-containing therapies might be reserved for patients with relapsed or refractory multiple myeloma. FUNDING Bristol Myers Squibb/Celgene and Chugai.
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Affiliation(s)
- Elias K Mai
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany
| | - Hartmut Goldschmid
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany; National Centre for Tumour Diseases Heidelberg, Heidelberg, Germany.
| | - Kaya Miah
- Division of Biostatistics, German Cancer Research Center Heidelberg, Heidelberg, Germany
| | - Uta Bertsch
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany; National Centre for Tumour Diseases Heidelberg, Heidelberg, Germany
| | - Britta Besemer
- Department of Internal Medicine II, University Hospital Tübingen, Tübingen, Germany
| | - Mathias Hänel
- Department of Internal Medicine III, Clinic Chemnitz, Chemnitz, Germany
| | - Julia Krzykalla
- Division of Biostatistics, German Cancer Research Center Heidelberg, Heidelberg, Germany
| | - Roland Fenk
- Department of Haematology, Oncology, and Clinical Immunology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Jana Schlenzka
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus Munder
- Department of Internal Medicine III, University Hospital Mainz, Mainz, Germany
| | - Jan Dürig
- Department for Haematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
| | - Igor W Blau
- Medical Clinic, Charité University Medicine Berlin, Berlin, Germany
| | - Stefanie Huhn
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany
| | - Dirk Hose
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany
| | - Anna Jauch
- Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany
| | - Christina Kunz
- Division of Biostatistics, German Cancer Research Center Heidelberg, Heidelberg, Germany
| | - Christoph Mann
- Department of Haematology, Oncology and Immunology, Philipps-University Marburg, Marburg, Germany
| | - Niels Weinhold
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany
| | - Christof Scheid
- Department of Internal Medicine I, University Hospital Cologne, Cologne, Germany
| | | | - Ivana von Metzler
- Department of Internal Medicine II, University Hospital Frankfurt, Frankfurt, Germany
| | - Aneta Schieferdecker
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section of Pneumology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | | | - Peter Reimer
- Clinic for Haematology, Oncology and Stem Cell Transplantation, Evangelische Kliniken Essen-Mitte, Essen, Germany
| | - Rolf Mahlberg
- Internal Medicine I, Hospital Mutterhaus der Borromäerinnen, Trier, Germany
| | - Ullrich Graeven
- Medical Clinic I, Hospital Maria Hilf, Mönchengladbach, Germany
| | | | - Uwe M Martens
- Haematology, Oncology, Palliative Care, SLK Clinic Heilbronn, Heilbronn, Germany
| | - Christian Kunz
- Haematology and Oncology, Westpfalz-Klinikum, Kaiserslautern, Germany
| | | | - Axel Benner
- Division of Biostatistics, German Cancer Research Center Heidelberg, Heidelberg, Germany
| | | | - Katja C Weisel
- Department of Oncology, Haematology and Bone Marrow Transplantation with Section of Pneumology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Marc S Raab
- Department of Medicine V, Heidelberg Myeloma Centre, University Hospital Heidelberg, Heidelberg, Germany
| | - Hans J Salwender
- Asklepios Tumorzentrum Hamburg, Asklepios Hospital Hamburg Altona and St Georg, Hamburg, Germany
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