ArticleBlood advances2026
Poor outcomes with BCMA-targeting bispecific antibodies following early relapse from ide-cel: a real-world French study.
Article in Blood advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04328298 (French Register Of Patients With Hemopathy Eligible For CAR-T Cell Treatment), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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French Register Of Patients With Hemopathy Eligible For CAR-T Cell Treatment (DESCAR-T)
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32 authors.
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Abstract
abstractIdecabtagene vicleucel (ide-cel), an adoptive chimeric antigen receptor T-cell therapy directed against B-cell maturation antigen (BCMA), has demonstrated high response rates and improved survival in patients with relapsed/refractory multiple myeloma. However, all patients eventually relapse, and data on salvage therapy outcomes remain limited. We conducted a national, real-world study of 154 patients relapsing after ide-cel, with a median time to progression of 6.0 months (interquartile range, 3.0-9.9). Salvage therapies included anti-BCMA bispecific antibodies (BsAbs) (n = 79), non-BCMA BsAbs targeting GPRC5D or FcRH5 (n = 12), combinations of immunomodulatory agent, proteasome inhibitor, and anti-CD38 monoclonal antibody (n = 40), and others (n = 23). Median overall survival (OS) was 12.12 months (95% confidence interval, 6.6 to not reached), and median progression-free survival (PFS) was 3.48 months (95% CI, 2.6-6.37). The overall response rate (≥ partial response) was higher in patients treated with BsAbs (36%) than others (13%, P = .002). Treatment with non-BCMA BsAbs resulted in significantly higher ORR (67% vs 30%, P = .018), OS (19.48 vs 8.41 months, P = .034) and PFS (9.2 vs 3.81 months, P = .035) compared to anti-BCMA BsAbs. Early relapse after ide-cel (≤6 months) was associated with worse outcomes (OS: 5.95 vs 12.58 months, P = .040), as was extramedullary disease (OS: 13.8 vs 6.28 months, P = .033) and exposure to >3 prior lines of therapy. In summary, anti-BCMA BsAbs offered limited efficacy whereas non-BCMA BsAbs may offer a promising therapeutic approach following ide-cel early relapse. These results underscore the potential benefits of diversifying targets in relapse post-ide-cel treatment strategies. This trial was registered at www.clinicaltrials.gov as #NCT04328298.
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