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Phase II trial of vorinostat with idarubicin and cytarabine for patients with newly diagnosed acute myelogenous leukemia or myelodysplastic syndrome.

ABSTRACT: To evaluate the safety and efficacy of the combination of the histone deacetylase inhibitor vorinostat with idarubicin and ara-C (cytarabine) in patients with acute myelogenous leukemia (AML) or myelodysplastic syndrome (MDS).Patients with previously untreated AML or higher-risk MDS age 15 to 65 years with appropriate organ function and no core-binding factor abnormality were candidates. Induction therapy was vorinostat 500 mg orally three times a day (days 1 to 3), idarubin 12 mg/m(2) intravenously (IV) daily × 3 (days 4 to 6), and cytarabine 1.5 g/m(2) IV as a continuous infusion daily for 3 or 4 days (days 4 to 7). Patients in remission could be treated with five cycles of consolidation therapy and up to 12 months of maintenance therapy with single-agent vorinostat. The study was designed to stop early if either excess toxicity or low probability of median event-free survival (EFS) of more than 28 weeks was likely.After a three-patient run-in phase, 75 patients were treated. Median age was 52 years (range, 19 to 65 years), 29 patients (39%) were cytogenetically normal, and 11 (15%) had FLT-3 internal tandem duplication (ITD). No excess vorinostat-related toxicity was observed. Induction mortality was 4%. EFS was 47 weeks (range, 3 to 134 weeks), and overall survival was 82 weeks (range, 3 to 134 weeks). Overall response rate (ORR) was 85%, including 76% complete response (CR) and 9% in CR with incomplete platelet recovery. ORR was 93% in diploid patients and 100% in FLT-3 ITD patients. Levels of NRF2 and CYBB were associated with longer survival.The combination of vorinostat with idarubicin and cytarabine is safe and active in AML.

SUBMITTER: Garcia-Manero G

PROVIDER: S-EPMC4879705 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature

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Phase II trial of vorinostat with idarubicin and cytarabine for patients with newly diagnosed acute myelogenous leukemia or myelodysplastic syndrome.

Garcia-Manero Guillermo G Tambaro Francesco Paolo FP Bekele Nebiyou B NB Yang Hui H Ravandi Farhad F Jabbour Elias E Borthakur Gautam G Kadia Tapan M TM Konopleva Marina Y MY Faderl Stefan S Cortes Jorge E JE Brandt Mark M Hu Yumin Y McCue Deborah D Newsome Willie Mae WM Pierce Sherry R SR de Lima Marcos M Kantarjian Hagop M HM

Journal of clinical oncology : official journal of the American Society of Clinical Oncology 20120514 18

<h4>Purpose</h4>To evaluate the safety and efficacy of the combination of the histone deacetylase inhibitor vorinostat with idarubicin and ara-C (cytarabine) in patients with acute myelogenous leukemia (AML) or myelodysplastic syndrome (MDS).<h4>Patients and methods</h4>Patients with previously untreated AML or higher-risk MDS age 15 to 65 years with appropriate organ function and no core-binding factor abnormality were candidates. Induction therapy was vorinostat 500 mg orally three times a day ...[more]

PMID: 22585696

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Project description:BACKGROUND:Outcomes for younger patients with acute myeloid leukaemia have moderately improved over the past two decades owing to better supportive care and recent introduction of novel targeted agents. Blocking PD-1 and its ligand's pathways enhances antileukaemia responses by enabling T cells in murine models. We aimed to assess the addition of nivolumab to frontline therapy with idarubicin and cytarabine in patients with newly diagnosed acute myeloid leukaemia or high-risk myelodysplastic syndrome. METHODS:This single-arm, phase 2 part of the phase 1-2 study of nivolumab in combination with idarubicin and cytarabine was done at the University of Texas MD Anderson Cancer Center (Houston, TX, USA). Eligible patients were aged 18-60 years (or >60 years if suitable for intensive chemotherapy), and had newly diagnosed acute myeloid leukaemia or high-risk myelodysplastic syndrome, and an Eastern Cooperative Oncology Group performance status of 0-2. Induction included cytarabine 1·5 g/m2 by 24-h continuous infusion daily on days 1-4 (3 days in patients >60 years) and idarubicin 12 mg/m2 daily on days 1-3. Nivolumab 3 mg/kg was started on day 24 (range 22-26) and continued every 2 weeks for up to a year in responders. Responders received either up to five consolidation cycles of attenuated doses of idarubicin and cytarabine, or allogeneic stem cell transplantation if eligible. The primary endpoint was event-free survival. Efficacy and safety analyses were done in all patients who received at least one dose of study treatment. Secondary endpoints were relapse-free survival and overall survival. This ongoing trial is registered with ClinicalTrials.gov, number NCT02464657. FINDINGS:Between Aug 7, 2015, and June 2, 2018, 44 patients were enrolled of whom 22 (50%) had adverse genetic risk by European Leukaemia Network classification. All patients were evaluable for safety and efficacy. At a median follow-up of 17·25 months (IQR 0·50-30·40), median event-free survival was not reached (95% CI 7·93-NR). Median relapse-free survival of responders was 18·54 months (95% CI 8·20-23·22). The median overall survival was 18·54 months (95% CI 10·81-28·81). Six patients had seven grade 3-4 immune-related adverse events with two cases of rash, two of colitis, and one each of transaminitis, pancreatitis, and cholecystitis. 19 (43%) of 44 patients achieved a response and proceeded to allogeneic stem cell transplantation, with grade 3-4 graft-versus-host disease observed in five (26%). No treatment related deaths were attributed to nivolumab. INTERPRETATION:Addition of nivolumab to induction chemotherapy with idarubicin and cytarabine is feasible in patients with newly diagnosed acute myeloid leukaemia or high-risk myelodysplastic syndrome. Post-transplant severe graft-versus-host disease could be improved, and earlier initiation of checkpoint inhibitor therapy is warranted in future studies. FUNDING:The MD Anderson Cancer Center Support Grant CA016672, and the MD Anderson Cancer Center Leukaemia SPORE CA100632 from the National Cancer Institute, Bristol Myers Squibb.

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Phase II trial of vorinostat with idarubicin and cytarabine for patients with newly diagnosed acute myelogenous leukemia or myelodysplastic syndrome.

Publications

Phase II trial of vorinostat with idarubicin and cytarabine for patients with newly diagnosed acute myelogenous leukemia or myelodysplastic syndrome.

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