Publications by authors named "Vladimir Strugov"

Article Synopsis
  • Patients with chronic lymphocytic leukemia (CLL) on ibrutinib treatment often develop resistance due to mutations in the BTK and PLCG2 genes, with varying frequencies impacting patient outcomes.
  • A study of 98 CLL patients revealed that 65% of those who relapsed exhibited at least one mutation in BTK or PLCG2, while 12% of responding patients also had mutations, indicating a potential for progression.
  • The findings suggest that other genetic mutations may contribute to resistance, with BTK mutation profiles differing between relapsing patients, but no significant impact on TP53 mutations was observed, highlighting the complexity of treatment resistance.
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iLLUMINATE is a randomized, open-label phase III study of ibrutinib plus obinutuzumab (n=113) versus chlorambucil plus obinutuzumab (n=116) as first-line therapy for patients with chronic lymphocytic leukemia or small lymphocytic lymphoma. Eligible patients were aged ≥65 years, or <65 years with coexisting conditions. Patients received oral ibrutinib 420 mg once daily until disease progression or unacceptable toxicity or six cycles of oral chlorambucil, each in combination with six cycles of intravenous obinutuzumab.

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Article Synopsis
  • Chronic lymphocytic leukemia (CLL) patients are more vulnerable to severe COVID-19, with 79% experiencing severe cases requiring oxygen or intensive care.
  • The study found that older age (≥65 years) was a key predictor of severe COVID-19 outcomes, while treatments like ibrutinib may offer some protection.
  • Among those with severe COVID-19, a significantly higher mortality rate was observed (36.4%) compared to mild cases (2.6%), indicating that CLL and immunodeficiency play critical roles in COVID-19 severity and outcomes.
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In 2014, an interim analysis of a phase 3 study was performed to evaluate the effectiveness of ofatumumab in patients with bulky fludarabine-refractory chronic lymphocytic leukaemia (BFR CLL) as compared to physician's choice. The five-year follow-up of this phase 3 trial showed that ofatumumab therapy resulted in a numerically but not significantly longer overall survival. As only few patients had the chance to receive a kinase inhibitor later, the study displays the survival of BFR CLL patients in the period prior to receiving small-molecule inhibitors.

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Background: Both single-agent ibrutinib and chlorambucil plus obinutuzumab have shown superior efficacy to chlorambucil monotherapy and are standard first-line treatments in chronic lymphocytic leukaemia. We compared the efficacy of the combination of ibrutinib plus obinutuzumab with chlorambucil plus obinutuzumab in first-line chronic lymphocytic leukaemia or small lymphocytic lymphoma.

Methods: iLLUMINATE is a multicentre, randomised, open-label, phase 3 trial done at 74 academic and community hospitals in Australia, Canada, Israel, New Zealand, Russia, Turkey, the EU, and the USA in patients with previously untreated chronic lymphocytic leukaemia or small lymphocytic lymphoma, either aged 65 years or older or younger than 65 years with coexisting conditions.

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CLL is an aging-associated neoplasm with median age at diagnosis > 65 years. Little is known about safety and efficacy of FC/FCR regimens in elderly CLL patients with multiple comorbidities. We retrospectively revised medical records of 90 patients treated with FC/FCR regimens in our clinic.

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