A phase II study of estramustine, docetaxel, and exisulind in patients with hormone- refractory prostate cancer: results of cancer and leukemia group B trial 90004.

Published

Journal Article

PURPOSE: Docetaxel/estramustine is a known active regimen in hormonerefractory prostate cancer (HRPC). A phase II study was conducted to assess the safety and efficacy of docetaxel/estramustine combined with exisulind, an apoptotic antineoplastic drug. PATIENTS AND METHODS: Eighty men with chemotherapy-naive HRPC were enrolled in a multicenter, cooperative group study. The treatment regimen consisted of oral estramustine (280 mg 3 times daily for 5 days), docetaxel 70 mg/m2, oral exisulind (250 mg twice daily), oral dexamethasone (8 mg twice daily for 3 days), and oral warfarin (2 mg daily). RESULTS: Seventy-five eligible patients were treated with a median of 6 cycles of therapy. Fortyseven patients (62.7%; 95% CI, 50.7%-73.6%) had a > or = 50% decline in prostate-specific antigen levels. Forty-six patients had measurable disease with 6 partial responses (13%; 95% CI, 4.9%-26.3%). The main grade 3/4 toxicities were neutrophils (79%), fatigue (15%), and thrombosis/embolism (10%). The median time to first progression was 5.1 months (95% CI, 4.4-6.3 months) and the median survival time was 17.8 months (95% CI, 14.7-20.1 months). CONCLUSION: The combination of estramustine/docetaxel/exisulind was associated with significant thomboembolic toxicity despite prophylactic warfarin. The contribution of exisulind to toxicity is uncertain. Prostate-specific antigen decline, response rates, and progression-free and overall survival are similar to those reported with docetaxel/estramustine.

Full Text

Duke Authors

Cited Authors

  • Dawson, NA; Halabi, S; Ou, S-S; Biggs, DD; Kessinger, A; Vogelzang, N; Clamon, GH; Nanus, DM; Kelly, WK; Small, EJ; Cancer And Leukemia Group B,

Published Date

  • September 2008

Published In

Volume / Issue

  • 6 / 2

Start / End Page

  • 110 - 116

PubMed ID

  • 18824434

Pubmed Central ID

  • 18824434

International Standard Serial Number (ISSN)

  • 1558-7673

Digital Object Identifier (DOI)

  • 10.3816/CGC.2008.n.017

Language

  • eng

Conference Location

  • United States