Second-line treatment of advanced urothelial cancer with paclitaxel and RAD001 (everolimus) in a German phase II trial (AUO trial AB 35/09).

Authors

Guenter Niegisch

Guenter Niegisch

Department of Urology, Heinrich-Heine-University, Duesseldorf, Germany

Guenter Niegisch , Margitta Retz , Mark K. Thalgott , Stefan Balabanov , Friedemann Honecker , Michael Stöckle , Carsten Henning Ohlmann , Martin Boegemann , Frank vom Dorp , Juergen Gschwend , Arndt Hartmann , Christian Ohmann , Peter Albers

Organizations

Department of Urology, Heinrich-Heine-University, Duesseldorf, Germany, Department of Urology, Rechts der Isar Medical Center, Technische Universität München, Munich, Germany, Department of Oncology, Hematology, Bone Marrow Transplantation with Section Pneumology, University Hospital Hamburg-Eppendorf, Hamburg, Germany, Department of Urology, Saarland University, Homburg, Germany, Department of Urology, University of Muenster, Muenster, Germany, Department of Urology, University of Essen Medical School, Essen, Germany, Institute of Pathology, University Erlangen, Erlangen, Germany, Coordinating Center for Clinical Trials, University Duesseldorf, Duesseldorf, Germany

Research Funding

Pharmaceutical/Biotech Company
Background: Efficacy of second-line treatment after cisplatinum failure in patients (pts) with advanced urothelial cancer is limited. Based on encouraging preclinical data and results from several phase I trials in solid cancers, we evaluated the safety and efficacy of the combination of paclitaxel and RAD001 (everolimus) in these pts. Methods: In this single-arm, multicenter phase II trial, pts failing prior cisplatinum based combination treatment for advanced urothelial cancer were treated with paclitaxel (175 mg/m² i.v., three-weekly) and the mTOR-inhibitor RAD001 (10 mg p.o., once daily). Pts were treated until tumor progression by RECIST criteria or until a maximum of 6 cycles was completed. A one-stage design was used to evaluate the overall response rate (ORR) as primary endpoint. Results: 27 pts (18 men, 9 women; median age 63 (35-76) years; ECOG ≥ 1: 11/27pts, hepatic metastases: 10 pts, Hb<10 g/dl: 8 pts; upper urinary tract: 9 pts, lower urinary tract 15 pts, both: 3 pts) were enrolled between 07/09 and 12/11. As of 01/12, 19 pts are evaluable for the primary endpoint and the toxicity profile (6 pts still on treatment, 1 patient has withdrawn consent). Main toxicities (all CTCAE grades) were anemia (10/19 pts), leucopenia (8/19 pts), and neuropathy (9/19 pts). Grade III/IV toxicities were anemia (4/19 pts) and leucopenia (4/19 pts). No treatment related deaths were observed. Median number of cycles was 4 (1-6). Complete remission (CR) and partial remission (PR) was observed in 0/19 and 3/19 pts, respectively (ORR 16%). Stable disease (SD) was observed in 10/19 pts. Median time-to-progression (TTP) was 2.7 months (95% confidence interval [CI] 1.6 – 4.4), median overall survival (OS) was 6.5 (CI 4.5 – 9.2) months. Conclusions: Frequency and severity of toxicities were acceptable. Using the combination of RAD001 and paclitaxel as second-line treatment for advanced urothelial cancer after cisplatinum-failure, response rates and survival times comparable to vinflunine were observed.

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Abstract Details

Meeting

2012 ASCO Annual Meeting

Session Type

Poster Session

Session Title

Genitourinary Cancer

Track

Genitourinary Cancer

Sub Track

Bladder Cancer

Clinical Trial Registration Number

NCT00933374

Citation

J Clin Oncol 30, 2012 (suppl; abstr 4590)

DOI

10.1200/jco.2012.30.15_suppl.4590

Abstract #

4590

Poster Bd #

3E

Abstract Disclosures