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<p>The aim of this study was to assess the safety, response, and survival outcomes of cladribine (CLAD) + low-dose cytarabine (LDAC) + venetoclax (CAV) in patients with relapsed/refractory (R/R) and newly diagnosed acute myeloid leukemia (AML). This single-center, retrospective, non-randomized study included 46 adult patients with 29 R/R AML and 17 newly diagnosed AML who were unfit for intensive chemotherapy. All patients received the CAV regimen at our center. In the R/R group (median age 55 years, range 21–77), complete response (CR) was achieved in 44.8%, CR with incomplete blood count recovery (CRi) in 24.1%, composite complete remission (CRc, CR + CRi) and measurable residual disease (MRD) negativity in 51.7%. The median follow-up was 10.9 months, with median overall survival (OS) of 16.4 months (95% CI, 10.9–21.8). Leukopenia (62.1%) was the most common hematologic toxicity, and infection (44.8%) was the most common non-hematologic toxicity. The 30-day mortality rate was 0%, and one patient died within 60 days. In the newly diagnosed group, CR was 76.5%, CRi 17.6%, CRc 94.1%, and MRD negativity 82.3% after one induction cycle. The median OS was 15.5 months (95% CI, 11.1–19.9). Common grade 3/4 hematologic toxicities were leukopenia (76.5%), with infection (52.9%) as the most common non-hematologic toxicity. The CAV regimen demonstrated a high CRc rate and MRD negativity in R/R AML with manageable toxicity. In newly diagnosed acute myeloid leukaemia, this regimen has also demonstrated favourable efficacy, as previously reported, with tolerable haematological toxicity.</p>

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Efficacy and safety of cladribine, low-dose cytarabine and venetoclax in newly diagnosed and relapsed/refractory acute myeloid leukemia: results of a single center study

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  • 发表日期：

    2025年5月20日

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  • Ting Zhu,
  • Li Wang,
  • Hui Jiang,
  • Shujuan Huang,
  • Haitao Xu,
  • Anyou Wang,
  • Xin Liu

摘要

The aim of this study was to assess the safety, response, and survival outcomes of cladribine (CLAD) + low-dose cytarabine (LDAC) + venetoclax (CAV) in patients with relapsed/refractory (R/R) and newly diagnosed acute myeloid leukemia (AML). This single-center, retrospective, non-randomized study included 46 adult patients with 29 R/R AML and 17 newly diagnosed AML who were unfit for intensive chemotherapy. All patients received the CAV regimen at our center. In the R/R group (median age 55 years, range 21–77), complete response (CR) was achieved in 44.8%, CR with incomplete blood count recovery (CRi) in 24.1%, composite complete remission (CRc, CR + CRi) and measurable residual disease (MRD) negativity in 51.7%. The median follow-up was 10.9 months, with median overall survival (OS) of 16.4 months (95% CI, 10.9–21.8). Leukopenia (62.1%) was the most common hematologic toxicity, and infection (44.8%) was the most common non-hematologic toxicity. The 30-day mortality rate was 0%, and one patient died within 60 days. In the newly diagnosed group, CR was 76.5%, CRi 17.6%, CRc 94.1%, and MRD negativity 82.3% after one induction cycle. The median OS was 15.5 months (95% CI, 11.1–19.9). Common grade 3/4 hematologic toxicities were leukopenia (76.5%), with infection (52.9%) as the most common non-hematologic toxicity. The CAV regimen demonstrated a high CRc rate and MRD negativity in R/R AML with manageable toxicity. In newly diagnosed acute myeloid leukaemia, this regimen has also demonstrated favourable efficacy, as previously reported, with tolerable haematological toxicity.