ReviewAdvances in therapy2026
Have Fixed-Duration (FD) Regimens Delivered on Their Promise in Chronic Lymphocytic Leukemia and What Is the Future of FD Regimens? A Narrative Review.
Review in Advances in therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. 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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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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No citing paper in PubMed yet.
Corrections and comments
- Erratum issued
Authors and funding
1 author.
Funding
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Abstract
introductionTreatment for patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) has shifted from chemoimmunotherapy (CIT) to targeted therapies, administered as continuous treatment until progression or in fixed-duration regimens. Fixed-duration regimens with targeted therapies (usually in combination regimens with venetoclax and a Bruton tyrosine kinase inhibitor [BTKi] and/or an anti-CD20 monoclonal antibody) are of increasing interest, and recent phase 3 trial results support this approach. Fixed-duration treatment offers a pre-defined treatment stopping point and may provide patients with a treatment-free interval, potentially reducing the burden of long-term therapy while minimizing cumulative toxicity and costs.
methodsHere, we review the currently approved fixed-duration regimens and some investigational combinations in ongoing registrational clinical trials.
resultsThe registrational fixed-duration studies CLL14 (venetoclax plus obinutuzumab), GLOW (ibrutinib plus venetoclax), CAPTIVATE (ibrutinib plus venetoclax), AMPLIFY (acalabrutinib plus venetoclax with or without obinutuzumab), and MURANO (venetoclax plus rituximab) along with the investigator-initiated CLL17 study, which may impact treatment guidelines, demonstrated extended treatment-free intervals. Generally, targeted fixed-duration regimens in patients with unmutated immunoglobulin heavy chain variable region or TP53 and/or del(17p) demonstrated greater efficacy than CIT, but outcomes were typically poorer than in patients without these high-risk features. Cardiovascular toxicity and death remain a significant concern with ibrutinib plus venetoclax, which was also associated with high rates of diarrhea and atrial fibrillation.
conclusionSuccessful fixed-duration regimens in CLL should achieve deep remission (i.e., undetectable minimal residual disease), sustain long-term progression-free survival, decrease the burden of treatment-related adverse events, and allow for re-treatment with minimal risk of drug resistance. Although fixed-duration treatment represents a positive step forward for most patients with CLL/SLL, the currently approved regimens often fall short in patients at high risk of progression. Continued research and development of next-generation drugs is essential to enhance efficacy and safety, ultimately improving outcomes in all patients with CLL/SLL.
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