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Updated: Feb 14, 2026

Immunoglobulin Gene Sequence Analysis In Chronic Lymphocytic Leukemia: From Patient Material To Sequence Interpretation
Published on: November 26, 2018
CLL2-BXX Phase II trials: sequential, targeted treatment for eradication of minimal residual disease in chronic
Paula Cramer1, Julia von Tresckow1, Jasmin Bahlo1
1Department I of Internal Medicine & Center of Integrated Oncology Cologne-Bonn, German CLL Study Group, University Hospital Cologne, Cologne, Germany.
Aim:
Four Phase II trials (clinical trials numbers: NCT02345863, NCT02401503, NCT02445131 and NCT02689141) evaluate a different combination of targeted agents in an all-comer population of approximately 60 patients with chronic lymphocytic leukemia irrespective of prior treatment, physical fitness and genetic risk factors. Patients with a higher tumor load start with a debulking treatment with bendamustine. The subsequent induction and maintenance treatment with an anti-CD20 antibody (obinutuzumab or ofatumumab) and a targeted oral agent (ibrutinib, idelalisib or venetoclax) are continued until achievement of a complete response and minimal residual disease negativity.
Conclusion:
This strategy represents a new era of chronic lymphocytic leukemia therapy where chemotherapy is increasingly replaced by targeted agents and treatment duration is tailored to the patient's individual tumor load and response.
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