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Phase II trial of high-dose topotecan, melphalan and CY with autologous stem cell support for multiple myeloma.

ABSTRACT: In spite of high-dose chemotherapy followed by autologous hematopoietic SCT multiple myeloma (MM) eventually recurs, highlighting the need for more effective treatment approaches. Patients received topotecan 3.5?mg/m(2) intravenously on days -6 to -2, melphalan 70?mg/m(2) intravenously on days -3 and -2 and CY 1?g/m(2) intravenously on days -6, -5 and -4. Overall response rate (ORR) consisting of complete response and partial response (CR+PR, PFS, OS and toxicity are reported. Between August 2002 to March 2004, 60 patients (34 men and 26 women) with a median age of 61 years (range 45-72) were enrolled. Forty-one patients were treated for consolidation of first remission, while 19 patients had relapsed/refractory disease. ORR was 85% (CR 12%, very good PR 43% and PR 30%). Median time to neutrophil (ANC>0.5 × 10(9)/L) and plt engraftment (>20 × 10(9)/L) was 10 (range 7-12 days) and 9 days (range 6-79 days), respectively. A majority of the common adverse events were grade 1-3 mucositis/stomatitis (65%), grade 1 or 2 nausea (59%) and grade 1 or 2 diarrhea (41%). Median PFS was 18.5 months and median OS has yet not been reached. In conclusion, topotecan, melphalan and CY is a safe and active conditioning regimen for auto hematopoietic SCT in MM. The ORR and PFS were comparable to high-dose melphalan.

SUBMITTER: Kazmi SM

PROVIDER: S-EPMC4080410 | biostudies-literature | 2011 Apr

REPOSITORIES: biostudies-literature

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Phase II trial of high-dose topotecan, melphalan and CY with autologous stem cell support for multiple myeloma.

Kazmi S M A SM Saliba R M RM Donato M M Wang M M Hosing C C Qureshi S S Anderlini P P Popat U U Champlin R E RE Giralt S A SA Qazilbash M H MH

Bone marrow transplantation 20100628 4

In spite of high-dose chemotherapy followed by autologous hematopoietic SCT multiple myeloma (MM) eventually recurs, highlighting the need for more effective treatment approaches. Patients received topotecan 3.5 mg/m(2) intravenously on days -6 to -2, melphalan 70 mg/m(2) intravenously on days -3 and -2 and CY 1 g/m(2) intravenously on days -6, -5 and -4. Overall response rate (ORR) consisting of complete response and partial response (CR+PR, PFS, OS and toxicity are reported. Between August 200 ...[more]

PMID: 20581887

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Project description:BackgroundRetrospective studies suggest that conditioning therapy with busulfan plus melphalan could result in longer progression-free survival compared with melphalan alone in patients with multiple myeloma undergoing autologous haemopoietic cell transplantation (auto-HCT). We aimed to test this hypothesis in a randomised trial.MethodsThe primary objective of the study was to compare progression-free survival with conditioning of busulfan plus melphalan with melphalan alone in patients with multiple myeloma. Patients with newly diagnosed multiple myeloma who were eligible for cell transplantation, aged 70 years or younger, with at least stable disease, were randomly assigned (1:1) to treatment. Patients received either busulfan plus melphalan, with a test dose of busulfan 32 mg/m2 followed by pharmacokinetically adjusted doses on days -7, -6, -5, and -4 to achieve a target daily area under the curve (AUC) of 5000 mmol-minute and melphalan 70 mg/m2 per day on days -2 and -1 (total melphalan dose 140 mg/m2), or a melphalan dose of 200 mg/m2 on day -2. Randomisation was performed via a Clinical Trial Conduct Website at the University of Texas MD Anderson Cancer Center. The accrual is complete and final results are presented here. The study is registered with ClinicalTrials.gov, number NCT01413178.FindingsBetween Oct 12, 2011, and March 22, 2017, 205 patients were assessed for eligibility and randomly assigned to treatment. The primary analysis of progression-free survival was measured in 202 patients who received treatment: 104 patients in the busulfan plus melphalan group and 98 patients in the melphalan alone group. 90 days after auto-HCT, 102 (98%) of 104 patients given busulfan plus melphalan and 95 (97%) of 98 patients given melphalan alone achieved partial response or better. The median follow-up in the busulfan plus melphalan group was 22·6 months (IQR 15·2-47·1) and 20·2 months (IQR 8·8-46·6) in the melphalan alone group. Median progression-free survival was 64·7 months (32·9-64·7) with busulfan plus melphalan versus 43·5 months (19·9-not estimated) with melphalan alone (hazard ratio 0·53 [95% CI 0·30-0·91]; p=0·022). There were no treatment-related deaths by day 100 in either group. Grade 2-3 mucositis was observed in 77 (74%) of 104 patients in the busulfan plus melphalan group versus 14 (14%) of 98 patients in the melphalan alone group.InterpretationThese findings, if confirmed in other ongoing studies, suggest that busulfan plus melphalan could replace melphalan alone as the conditioning regimen for auto-HCT in patients with newly diagnosed myeloma.FundingThis study was funded in part by the National Institutes of Health (NIH) through MD Anderson's Cancer Center Support Grant (CA016672).

Project description:Melphalan 200 mg/m(2) is the standard conditioning regimen for patients with multiple myeloma (MM) with normal renal function (NRF) undergoing autologous stem cell transplant (ASCT). In an effort to escalate the dose of melphalan and to improve the efficacy, we designed a dose-escalation study of melphalan in conjunction with palifermin in patients with NRF, with the hope that a higher dose of melphalan can be administered with an acceptable degree of oral mucositis (OM). We enrolled 19 patients (18 evaluable) with NRF. Dose-escalation of melphalan administered on day -2 began at 200 mg/m(2) with palifermin administered at a fixed dose of 60 mcg/kg/day. Palifermin was given as an i.v. bolus on day -5, -4, and -3, and then on day +1, +2, and +3. Subsequent dose escalations of melphalan were done at 20 mg/m(2) increments up to a maximum dose of 280 mg/m(2). Of 18 evaluable patients, there were no treatment-related deaths by day 100. The median age was 48.5 years (range, 33-65 years). The most common adverse events related to palifermin included rash (18 events, no ? grade 3 events), elevation of amylase (10 events, 4 were grade 3 but asymptomatic), and lipase (5 events, 2 were grade 3 but asymptomatic), edema (11 events, no ? grade 3). The overall incidence of OM grade 3 was 44% (8/18) with a median duration of severe mucositis of 5 days (range, 3-6 days). Eleven patients (61%) required opioid analgesics. None of the patients received total parenteral nutrition (TPN)/nasogastric feeding. Two of 6 patients who were given melphalan 280 mg/m(2) did not develop OM. Cardiac dose-limiting toxicity (DLT) in the form of atrial fibrillation did occur in 1 of 6 patients treated with melphalan 280 mg/m(2). Palifermin has permitted safe dose escalation of melphalan up to 280 mg/m(2), thus reaching the cumulative dosage of melphalan administered in tandem ASCT. This higher dose of melphalan has the potential to improve the efficacy and, hopefully, outcomes of patients with MM with a single ASCT. A phase 2 trial is necessary to better delineate the antimyeloma efficacy of this regimen.

Dataset Information

Phase II trial of high-dose topotecan, melphalan and CY with autologous stem cell support for multiple myeloma.

Publications

Phase II trial of high-dose topotecan, melphalan and CY with autologous stem cell support for multiple myeloma.

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