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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-13918

Dummer, R; Rochlitz, C; Velu, T; Acres, B; Limacher, J M; Bleuzen, P; Lacoste, G; Slos, P; Romero, P; Urosevic, M (2008). Intralesional adenovirus-mediated interleukin-2 gene transfer for advanced solid cancers and melanoma. Molecular Therapy, 16(5):985-994.

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Numerous preclinical and clinical studies have shown that interleukin-2 (IL-2) induces regression of metastatic tumors. We have conducted a phase I/II, multicenter, open-label, dose-escalating study to evaluate the safety, efficacy, and biological effects of repeated intratumoral injections of adenovirus-IL-2 (TG1024) in patients with advanced solid tumors and melanoma. Thirty five patients (twenty-five with metastatic melanoma and ten with other solid tumors) were treated in eight successive cohorts at dose levels ranging from 3 x 10(8) to 3 x 10(11) viral particles (vp). Intratumoral TG1024 injections in combination with dacarbazine (DTIC) were tested in metastatic melanoma in one cohort. No clinical responses were observed at doses below 3 x 10(11) vp. Six local objective responses were recorded in patients receiving 3 x 10(11) vp per treatment [five in metastatic melanoma and one in metastatic squamous cell carcinoma (SCC) of the skin], of which two were complete responses (CRs). Most of the common side effects were injection site reactions and flu-like syndrome. TG1024 dose intensification across cohorts resulted in increased serum IL-2 levels after the injection. Intratumoral TG1024 injection induced pronounced inflammation of the treated lesion, with predominant CD8(+), TIA+ lymphocytic infiltrate. Our results show that intratumoral injections of TG1024 are safe and well tolerated. The clinical activity of TG1024 observed in this study warrants further investigations.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Dermatology Clinic
DDC:610 Medicine & health
Date:May 2008
Deposited On:19 Feb 2009 09:34
Last Modified:27 Nov 2013 22:46
Publisher:Nature Publishing Group
Publisher DOI:10.1038/mt.2008.32
PubMed ID:18388930
Citations:Web of Science®. Times Cited: 14
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Scopus®. Citation Count: 15

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