Measurable residual disease (MRD) monitoring has become a critical component in the management of acute myeloid leukemia (AML), to inform prognosis, guide therapy, and serve as a key endpoint in clinical trials. The 2025 update of the MRD guideline provides a comprehensive and refined framework for MRD assessment, aligned with the ELN 2022 genetic risk classification. Developed by members of the ELN-DAVID consortium, the guidelines incorporate expert consensus determined through a two-stage Delphi round. They address the clinical implementation of MRD methodologies, technical considerations, integration into clinical trials, and future directions. Importantly, MRD recommendations are tailored to individual prognostic and genetic subgroups. A new qualitative MRD response category, designated as optimal, warning, or high risk of treatment failure, has been introduced to facilitate contextual interpretation of the MRD burden and its clinical relevance. Notably, ultrahigh-sensitivity (UHS) NGS-based MRD assessment is now recommended for FLT3-ITD-mutated AML following intensive chemotherapy and prior to allogeneic hematopoietic cell transplantation. A total of 56 recommendations were formulated, with 53 achieving a high level of consensus (≥90%). These updated guidelines represent a major step forward toward harmonizing MRD assessments in AML and enhancing its clinical utility across diverse treatment settings.
BACKGROUND:In CARTITUDE-4, a single infusion of ciltacabtagene autoleucel (cilta-cel) significantly prolonged progression-free survival in patients with lenalidomide-refractory multiple myeloma. We report updated overall survival and longer-term efficacy and safety outcomes. METHODS:CARTITUDE-4 is an open-label, multicentre, randomised, phase 3 trial at 81 hospital sites in the USA, Europe, Asia, and Australia. Eligible patients were adults (aged >18 years) with lenalidomide-refractory multiple myeloma, with one to three previous treatment lines, including a proteasome inhibitor and an immunomodulatory drug, and an Eastern Cooperative Oncology Group performance status of 0 or 1. After the trial started, the threshold defining measurable disease was lowered to 0·5 g/dL from 1·0 g/dL serum monoclonal paraprotein on July 2, 2021, to increase trial access. Patients were randomly assigned (1:1) via a computerised algorithm and balanced with permuted blocks, with stratification by physician's choice of pomalidomide-bortezomib-dexamethasone versus daratumumab-pomalidomide-dexamethasone, International Staging System stage, and number of previous treatment lines. Patients were assigned to cilta-cel (apheresis, bridging therapy [at least one pomalidomide-bortezomib-dexamethasone or daratumumab-pomalidomide-dexamethasone cycle], lymphodepletion, then cilta-cel infusion [0·75 × 106 CAR T cells per kg]) or standard of care (pomalidomide-bortezomib-dexamethasone [21-day cycles: 4 mg/day oral pomalidomide on days 1-14; 1·3 mg/m2 subcutaneous bortezomib twice a week for 2 weeks for eight cycles, then once a week for 2 weeks per cycle; 20 mg or, if aged >75 years, 10 mg oral dexamethasone on days 1, 2, 4, 5, 8, 9, 11, and 12 for eight cycles, then days 1, 2, 8, and 9 per cycle] or daratumumab-pomalidomide-dexamethasone [28-day cycles: 1800 mg subcutaneous daratumumab weekly for 2 cycles, every 2 weeks for four cycles, then every 4 weeks; 4 mg/day oral pomalidomide on days 1-21; 40 mg/week or, if aged >75 years, 20 mg/week oral or intravenous dexamethasone]). The primary endpoint was progression-free survival, previously published. In this Article, we report a prespecified second interim analysis of overall survival and an updated analysis of progression-free survival in the intention-to-treat population. This trial was registered at ClinicalTrials.gov (NCT04181827) and is ongoing. FINDINGS:Patients were randomly assigned between July 10, 2020, and Nov 17, 2021, to receive cilta-cel (n=208) or standard of care (n=211). At a median follow-up of 33·6 months (IQR 20·3-35·0), median progression-free survival was not reached (95% CI 34·5 months-not evaluable) in the cilta-cel group versus 11·8 months (9·7-14·0) in the standard-of-care group (HR 0·29 [95% CI 0·22-0·39]). Median overall survival was not reached (95% CI not evaluable) with cilta-cel versus not reached (37·7 months-not evaluable) with standard of care (HR 0·55 [95% CI 0·39-0·79]; p=0·0009). 30 (14%) of 208 patients in the cilta-cel group and 77 (37%) of 208 in the standard-of-care group had maximum grade 3 treatment-emergent adverse events, most commonly anaemia (72 [35%]) in the cilta-cel group and neutropenia (59 [28%]) in the standard-of-care group. Rates of maximum grade 4 treatment-emergent adverse events were 156 (75%) with cilta-cel and 116 (56%) with standard of care, most commonly neutropenia (152 [73%] with cilta-cel and 112 [54%] with standard of care). Serious treatment-emergent adverse events occurred in 98 (47%) patients in each group. Deaths in the safety population occurred in 50 (24%) in the cilta-cel group and 82 (39%) in the standard-of-care group, including due to treatment-related adverse events in six (3%; four due to infection) in the cilta-cel group and five (2%; all due to infection) in the standard-of-care group. INTERPRETATION:The significantly improved overall survival and patient-reported measures in CARTITUDE-4 reinforce the use of cilta-cel in treating relapsed or refractory multiple myeloma as early as after first relapse. FUNDING:Johnson & Johnson, Legend Biotech USA.
Lentigo maligna (LM) is a subtype of cutaneous melanoma in situ that develops on chronically sun-damaged skin in elderly individuals. Its diagnosis and management remain challenging due to its slow progression, frequent occurrence on cosmetically sensitive areas in frail individuals, and tendency for subclinical peripheral extension. Despite its potential for invasive transformation, the natural history of LM remains incompletely understood and evidence-based management strategies for this specific entity remain limited. This work aims to bridge the gap between scarce high-quality evidence and the clinicians' need for practical guidance on LM management by formulating evidence-based and expert consensus-driven recommendations for diagnosis, treatment and follow-up. Under the coordination of the International Dermoscopy Society, a global, multidisciplinary consortium of 53 experts-including dermatologists, dermato-oncologists, dermatologic surgeons, radiologists, radiotherapists, pathologists and epidemiologists-formulated recommendations through structured consensus, informed by a comprehensive review of current scientific evidence and clinical practice standards. Optimal management of LM requires accurate diagnosis and individualized treatment planning. Non-invasive skin imaging techniques, especially dermoscopy and reflectance confocal microscopy, aid in diagnosis, biopsy orientation, lesion delineation and post-treatment monitoring. Multiple partial biopsies help confirm diagnosis and rule out invasion. Complete surgical excision remains the first treatment option. No definitive safety margins can be recommended for standard surgery; margin-controlled techniques are preferable for large or ill-defined lesions. Topical imiquimod and radiotherapy are effective alternatives where surgery is unsuitable. Topical imiquimod is useful as primary, adjuvant or neoadjuvant therapy. Blind destructive methods should be avoided. Close clinical and imaging follow-up is needed. Patient-centred care, shared decision-making, and a multidisciplinary approach are critical for optimal outcomes. These international consensus recommendations summarize current best practices for LM management, offering practical, evidence-informed guidance to clinicians while acknowledging the potential of future research in refining these conclusions.
ABSTRACT:The Group for Research in Adult Acute Lymphoblastic Leukemia (GRAALL)-2014 trial evaluated an intensive, age-adapted protocol for adults aged 18 to 59 years with Philadelphia chromosome negative acute lymphoblastic leukemia. The trial was motivated by findings from the previous GRAALL-2005 study, which reported excessive toxicity from pediatric-inspired therapy in older patients and no added benefit from allogeneic hematopoietic stem cell transplantation (allo-HSCT) among those with an early favorable response to treatment. Thus, the GRAALL-2014 protocol aimed to reduce treatment-related toxicity in patients aged ≥45 years and to limit allo-HSCT to patients with poor measurable residual disease (MRD) responses. A total of 743 patients were included, and outcomes were compared with those of GRAALL-2005 trial. The GRAALL-2014 study demonstrated reduced early mortality and higher complete remission rates in patients aged ≥45 years. MRD-guided transplantation decisions reduced allo-HSCT indications by ∼50%. Although older patients experienced a higher cumulative incidence of relapse, no significant difference in disease-free survival (DFS) was observed compared with historical cohorts across age subgroups. The overall 4-year DFS was 57.1% (95% confidence interval [CI], 53.4-61.1). Notably, 4-year overall survival improved significantly, from 65.5% (95% CI, 61.7-69.8) to 71.7% (95% CI, 67.7-76.0) in younger patients (P = .031) and from 49.6% (95% CI, 43.5-56.5) to 59.5% (95% CI, 53.5-66.3) in older patients (P = .011). These findings highlight the value of individualized treatment strategies that balance efficacy and safety. Future studies should investigate the integration of immunotherapy to further reduce treatment intensity and improve outcomes. This trial was registered at www.clinicaltrials.gov as #NCT02617004 and #NCT02619630.
Treatment-free remission (TFR) after discontinuation of ABL tyrosine kinase inhibitors (TKIs) is an important therapeutic goal in chronic myeloid leukemia (CML). Interferon-α (IFN) has been suggested to promote durable TFR. The phase 3 ENDURE trial (NCT03117816; EUDRA-CT 2016-001030-94) prospectively tested this hypothesis in patients with stable deep molecular remission after TKI therapy. A total of 203 patients were randomised 1:1 to receive ropeginterferon alfa-2b (ropeg-IFN; 100 µg subcutaneously every two weeks for 15 months, n = 95) or observation alone (n = 108) after TKI discontinuation. The primary endpoint was molecular relapse-free survival (MRFS), defined as time to loss of major molecular response (MMR) or death. At a median follow-up of 36 months, 25-month MRFS was 56% (95% confidence interval (CI), 45–66) with ropeg-IFN and 59% (95% CI, 49–68) with observation (hazard ratio (HR), 1.02; 95% CI, 0.68–1.55; P = 0.91). Among 83 patients with molecular data after TKI restart, 79 (95%) regained at least MMR, 78 within 12 months (median 3 months, interquartile range: 2-4 months). Ropeg-IFN was well tolerated (median administered dose of 92 µg, range 3–104), and no new safety signals were observed. Ropeg-IFN maintenance did not improve the probability of sustained TFR after TKI discontinuation.
