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Kakkilaya A, Trando A, Cliff ERS, Mian H, Al Hadidi S, Aziz M, Goodman AM, Jeong AR, Smith WL, Kelkar AH, Russler-Germain DA, Mehra N, Chakraborty R, Gertz MA, Mohyuddin GR. Evaluating early intervention in smoldering myeloma clinical trials: a systematic review. Oncologist 2024:oyae219. [PMID: 39236068 DOI: 10.1093/oncolo/oyae219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Accepted: 07/23/2024] [Indexed: 09/07/2024] Open
Abstract
BACKGROUND Smoldering multiple myeloma (SMM), an asymptomatic precursor of multiple myeloma (MM), carries a variable risk of progression to MM. There is little consensus on the efficacy or optimal timing of treatment in SMM. We systematically reviewed the landscape of all clinical trials in SMM. We compared the efficacy of treatment regimens studied in SMM to results from these regimens when used in newly diagnosed multiple myeloma (NDMM), to determine whether the data suggest deeper responses in SMM versus NDMM. METHODS All prospective interventional clinical trials for SMM, including published studies, meeting abstracts, and unpublished trials listed on ClinicalTrials.gov up to April 1, 2023, were identified. Trial-related variables were captured, including treatment strategy and efficacy results. Relevant clinical endpoints were defined as overall survival (OS) and quality of life. RESULTS Among 45 SMM trials identified, 38 (84.4%) assessed active myeloma drugs, while 7 (15.6%) studied bone-modifying agents alone. Of 18 randomized trials in SMM, only one (5.6%) had a primary endpoint of OS; the most common primary endpoint was progression-free survival (n = 7, 38.9%). Among 32 SMM trials with available results, 9 (28.1%) met their prespecified primary endpoint, of which 5 were single-arm studies. Six treatment regimens were tested in both SMM and NDMM; 5 regimens yielded a lower rate of very good partial response rate or better (≥VGPR) in SMM compared to the corresponding NDMM trial (32% vs 63%, 43% vs 53%, 40% vs 63%, 86% vs 89%, 92% vs 95%, and 94% vs 87%, respectively). CONCLUSION In this systematic review of all prospective interventional clinical trials in SMM, we found significant variability in trial design, including randomization status, primary endpoints, and types of intervention used. Despite the statistical limitations, comparison of treatment regimens revealed no compelling evidence that the treatment is more effective when introduced early in SMM compared to NDMM.
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Affiliation(s)
- Apoorva Kakkilaya
- John Sealy School of Medicine, University of Texas Medical Branch, Galveston, TX, United States
| | - Aaron Trando
- School of Medicine, University of California San Diego, La Jolla, CA, United States
| | - Edward R Scheffer Cliff
- Program on Regulation, Therapeutics and Law, Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Hira Mian
- Division of Hematology, McMaster University, Hamilton, Canada
| | - Samer Al Hadidi
- Myeloma Center, Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Muhammad Aziz
- Division of Gastroenterology and Hepatology, University of Toledo, Toledo, OH, United States
| | - Aaron M Goodman
- Division of Blood and Marrow Transplantation, University of California San Diego, La Jolla, CA, United States
| | - Ah-Reum Jeong
- Division of Blood and Marrow Transplantation, University of California San Diego, La Jolla, CA, United States
| | - Wade L Smith
- Mulford Health Science Library, University of Toledo, Toledo, OH, United States
| | - Amar H Kelkar
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - David A Russler-Germain
- Division of Oncology, Washington University School of Medicine, St. Louis, MO, United States
| | - Nikita Mehra
- Department of Medical Oncology, Cancer Institute (WIA), Chennai, India
| | - Rajshekhar Chakraborty
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY, United States
| | - Morie A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, United States
| | - Ghulam Rehman Mohyuddin
- Division of Hematology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
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Testa U, Leone G, Pelosi E, Castelli G, De Stefano V. Is It Possible to Predict Tumor Progression Through Genomic Characterization of Monoclonal Gammopathy and Smoldering Multiple Myeloma? Mediterr J Hematol Infect Dis 2024; 16:e2024044. [PMID: 38882455 PMCID: PMC11178066 DOI: 10.4084/mjhid.2024.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 04/16/2024] [Indexed: 06/18/2024] Open
Abstract
The study of monoclonal serum proteins has led to the generation of two major theories: one proposing that individuals who had monoclonal proteins without any symptoms or evidence of end-organ damage have a benign condition, the other one suggesting that some individuals with asymptomatic monoclonal proteins may progress to multiple myeloma and thus are affected by a monoclonal gammopathy of undetermined significance (MGUS). Longitudinal studies of subjects with MGUS have supported the second theory. Subsequent studies have characterized and defined the existence of another precursor of multiple myeloma, smoldering multiple myeloma (SMM), intermediate between MGUS and multiple myeloma. Primary molecular events, chromosome translocations, and chromosome number alterations resulting in hyperploidy, required for multiple myeloma development, are already observed in myeloma precursors. MGUS and SMM are heterogeneous conditions with the presence of tumors with distinct pathogenic phenotypes and clinical outcomes. The identification of MGUS and SMM patients with a molecularly defined high risk of progression to MM offers the unique opportunity of early intervention with a therapeutic approach on a low tumor burden.
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Affiliation(s)
- Ugo Testa
- Istituto Superiore di Sanità, Roma, Italy
| | - Giuseppe Leone
- Section of Hematology, Department of Radiological and Hematological Sciences, Catholic University, Rome, Italy
| | | | | | - Valerio De Stefano
- Section of Hematology, Department of Radiological and Hematological Sciences, Catholic University, Rome, Italy
- Department of Laboratory and Hematological Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
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Hughes D, Yong K, Ramasamy K, Stern S, Boyle E, Ashcroft J, Basheer F, Rabin N, Pratt G. Diagnosis and management of smouldering myeloma: A British Society for Haematology Good Practice Paper. Br J Haematol 2024; 204:1193-1206. [PMID: 38393718 DOI: 10.1111/bjh.19333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/20/2024] [Accepted: 01/28/2024] [Indexed: 02/25/2024]
Abstract
Multiple myeloma is a bone marrow-based plasma cell tumour that develops from asymptomatic pre-cursor conditions smouldering myeloma and monoclonal gammopathy of uncertain significance and all are characterised by the presence of a monoclonal protein in the blood. Diagnosis and distinction between these conditions is based on blood tests, the bone marrow biopsy and cross sectional imaging. There are various risk stratification models that group patients with smouldering myeloma into risk groups based on risk of progression to symptomatic disease. Management is mainly observational for patients with smouldering myeloma although clinical trials for high-risk disease may be available. Restaging is required if evidence for progression.
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Affiliation(s)
- Daniel Hughes
- UCL Cancer Institute, University College London, London, UK
| | - Kwee Yong
- UCL Cancer Institute, University College London, London, UK
| | - Karthik Ramasamy
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
- Oxford Translational Myeloma Centre, NDORMS, University of Oxford, Oxford, UK
| | - Simon Stern
- Epsom and St Helier University Hospitals NHS Trust, Sutton, UK
| | - Eileen Boyle
- UCL Cancer Institute, University College London, London, UK
| | - John Ashcroft
- The Mid Yorkshire Teaching Hospitals NHS Trust, Wakefield, UK
| | - Faisal Basheer
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Neil Rabin
- University College London Hospitals, London, UK
| | - Guy Pratt
- University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
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Schmidt T, Gahvari Z, Callander NS. SOHO State of the Art Updates and Next Questions: Diagnosis and Management of Monoclonal Gammopathy of Undetermined Significance and Smoldering Multiple Myeloma. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2024:S2152-2650(24)00115-0. [PMID: 38641486 DOI: 10.1016/j.clml.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/14/2024] [Indexed: 04/21/2024]
Abstract
Monoclonal proteins are common, with a prevalence in the United States around 5% and the incidence increases with age. Although most patients are asymptomatic, the vast majority of cases are caused by a clonal plasma cell disorder. Monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM) are asymptomatic precursor conditions with variable risk of progression to multiple myeloma (MM). In recent years, significant progress has been made to better understand the factors that lead to the development of symptoms and progression to myeloma. In this review, we summarize the current diagnosis treatment guidelines for MGUS and SMM and highlight recent advances that underscore a shifting paradigm in the evaluation and management of plasma cell precursor conditions.
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Affiliation(s)
- Timothy Schmidt
- Division of Hematology, Medical Oncology, and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison WI
| | - Zhubin Gahvari
- Division of Hematology, Medical Oncology, and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison WI
| | - Natalie S Callander
- Division of Hematology, Medical Oncology, and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison WI.
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Mellgard G, Gilligan M, Cliff ERS, Bhutani D, Mohyuddin GR, Eisenberger A, Lentzsch S, Chakraborty R. Risk stratification models overestimate progression risk in contemporary patients with smoldering multiple myeloma. Hemasphere 2024; 8:e61. [PMID: 38510991 PMCID: PMC10951870 DOI: 10.1002/hem3.61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/06/2024] [Accepted: 02/21/2024] [Indexed: 03/22/2024] Open
Affiliation(s)
- George Mellgard
- Department of MedicineColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Molly Gilligan
- Department of MedicineColumbia University Irving Medical CenterNew YorkNew YorkUSA
| | - Edward R. Scheffer Cliff
- Program on Regulation, Therapeutics and Law, Brigham and Women's HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Divaya Bhutani
- Columbia University Herbert Irving Comprehensive Cancer CenterNew YorkNew YorkUSA
| | | | - Andrew Eisenberger
- Columbia University Herbert Irving Comprehensive Cancer CenterNew YorkNew YorkUSA
| | - Suzanne Lentzsch
- Columbia University Herbert Irving Comprehensive Cancer CenterNew YorkNew YorkUSA
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