A Phase I Study of Continuous Intravenous Infusion of PSC 833 and Vinblastine in Patients With Metastatic Renal Cancer

Summary

Bolus PSC 833 is administered on Day 1 simultaneously with initiation of 24 hour continuous infusion of PSC 833, followed by another continuous infusion lasting an additional 6 days. To ensure the safety of a 7 day infusion of PSC 833, one patient is treated for 5 days and a second for 6 days, before the first cohort is enrolled. Vinblastine is administered in escalating doses on days 2-5. At least 3 patients are entered at each dose level. The MTD will be defined as the dose immediately below that at which 2 patients experience dose limiting toxicity. Treatment continues every 28 days.

Timeline

Start

1997-02

Primary completion

—

Completion

2001-01

Publications

• Background Chapman AE, Goldstein LJ. Multiple drug resistance: biologic basis and clinical significance in renal-cell carcinoma. Semin Oncol. 1995 Feb;22(1):17-28. No abstract available.
• Background Boote DJ, Dennis IF, Twentyman PR, Osborne RJ, Laburte C, Hensel S, Smyth JF, Brampton MH, Bleehen NM. Phase I study of etoposide with SDZ PSC 833 as a modulator of multidrug resistance in patients with cancer. J Clin Oncol. 1996 Feb;14(2):610-8. doi: 10.1200/JCO.1996.14.2.610.
• Background Twentyman PR. MDR1 (P-glycoprotein) gene expression--implications for resistance modifier trials. J Natl Cancer Inst. 1992 Oct 7;84(19):1458-60. doi: 10.1093/jnci/84.19.1458. No abstract available.

Drugs

Indications