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  • Title: Randomized Phase II trial of two high-dose chemotherapy regimens with stem cell transplantation for the treatment of advanced ovarian cancer in first remission or chemosensitive relapse: a Southwest Oncology Group study.
    Author: Stiff PJ, Shpall EJ, Liu PY, Wilczynski SP, Callander NS, Scudder SA, Jazieh AR, Samlowski W, McCoy J, Alberts DS, Southwest Oncology Group Study.
    Journal: Gynecol Oncol; 2004 Jul; 94(1):98-106. PubMed ID: 15262126.
    Abstract:
    OBJECTIVES: To evaluate response rates, progression-free survival (PFS), overall survival (OS), and toxicity of two high-dose chemotherapy regimens with stem cell rescue used to treat patients with recurrent or persistent stage III/IV ovarian cancer, with the goal of taking one forward into a Phase III comparison with conventional therapy. METHODS: Patients under 65 with clinically or pathologically persistent disease after initial chemotherapy or those relapsing >6 months after a complete remission (CR) were randomized to CMC carboplatin (1500 mg/m(2)), mitoxantrone (75 mg/m(2)), and cyclophosphamide (120 mg/kg)], or CTC: [cisplatin (165 mg/m(2)), thiotepa (600 mg/m(2)), and cyclophosphamide (5625 mg/m(2))] with stem cell rescue. RESULTS: Of 67 randomized, the 32 and 26 eligible in the CMC and CTC arms were matched including age (median 49), maximum tumor diameter, and disease status at transplant. Low-risk disease (maximum diameter disease <or= 0.5 cm and platinum sensitivity) was demonstrated in only approximately one-half of the patients. There were two treatment-related deaths in each arm. The median PFS was 13 and 8 months, respectively, for the CMC and CTC arms. The median OS was 29 and 22 months for the CMC and CTC arms. In a multivariate analysis of PFS, normal CA125 at transplant and CR to primary therapy were significant; for OS, normal CA125 and platinum sensitivity were significant. CONCLUSIONS: The CMC regimen was the superior regimen. However, few patients were long-term progression-free survivors. A clinical CR to primary therapy and a normal CA125, seen in a minority of patients, were requirements for a favorable outcome.
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