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Temsirolimus for patients with metastatic renal cell carcinoma : outcomes in patients receiving temsirolimus within a compassionate use program in a tertiary referral center

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Afshar, Mehran, Pascoe, Jennifer, Whitmarsh, Sue, James, Nicholas D. and Porfiri, Emilio (2014) Temsirolimus for patients with metastatic renal cell carcinoma : outcomes in patients receiving temsirolimus within a compassionate use program in a tertiary referral center. Drug Design, Development and Therapy, Volume 2015 (Number 9). pp. 13-19. doi:10.2147/DDDT.S73686

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Official URL: http://dx.doi.org/10.2147/DDDT.S73686

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Abstract

Aim: Temsirolimus has shown efficacy as first-line treatment of patients with metastatic renal cell carcinoma and poor prognostic features. The efficacy of temsirolimus in other clinical settings, such as second-line therapy, is unclear. The aim of this study was to investigate the outcomes of an unselected group of patients with renal cancer treated with temsirolimus in a compassionate use program.
Patients and methods: This retrospective analysis included all patients receiving temsirolimus at a tertiary referral center between November 2007 and October 2008. Information was obtained through review of patient notes, electronic records, and pharmacy records. Baseline characteristics, prognostic features, and previous treatments were recorded for all patients. Outcome measures were response rate, progression-free survival (PFS), overall survival (OS), and toxicities.

Results: Thirty-eight patients were included in the analysis, with median age of 62 years, among whom 37% were untreated and 63% had received one or more previous treatments. Thirty-four percent of the patients had three or more poor prognostic factors. Four patients (11%) achieved a partial response (PR); in all four of these patients, the PR was confirmed by two subsequent computed tomography (CT) scans, and in one patient, the PR lasted for more than 18 months. A total of 34% achieved stable disease, and 50% had disease progression. Median OS was 7.6 months (95% confidence interval [CI] 4.8–10.5), and median PFS was 3.2 months (95% CI 1.0–5.5). Patients with two or fewer poor prognostic factors had a survival of 10.12 months compared with 5.03 months of those with three or more. Median survival was 14.9 months for untreated patients and 6.4 months for previously treated patients.

Conclusion: Our results indicate some efficacy of temsirolimus in untreated patients with renal tumors and poor-intermediate prognosis, although the limitations of small sample size and retrospective nature must be taken into account. The role of temsirolimus in previously treated patients remains controversial given the recently published results of the INTORSECT trial and the discrepancies between the few published series.

Item Type: Journal Article
Subjects: R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Divisions: Faculty of Medicine > Warwick Medical School > Health Sciences > Cancer Research Unit
Faculty of Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH): Renal cell carcinoma -- Treatment, Rapamycin
Journal or Publication Title: Drug Design, Development and Therapy
Publisher: Dove Medical Press Ltd.
ISSN: 1177-8881
Official Date: 17 December 2014
Dates:
DateEvent
17 December 2014Published
24 October 2014Accepted
3 September 2014Submitted
Volume: Volume 2015
Number: Number 9
Page Range: pp. 13-19
DOI: 10.2147/DDDT.S73686
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access

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