Purpose: Adoptive cell therapy with autologous tumor-infiltrating lymphocytes (TIL) has shown promising results in metastatic melanoma patients. Although objective response rates of over 50% have been reported, disadvantages of this approach are the labor-intensive TIL production and a very high drop-out rate of enrolled patients, limiting its widespread applicability. Previous studies showed a clear correlation between short TIL culture periods and clinical response. Therefore, we used a new TIL production technique using unselected, minimally cultured, bulk TIL (Young-TIL). The use of Young-TIL is not restricted to human leukocyte antigen (HLA)-A2 patients. The purpose of this study is to explore the efficacy and toxicity of adoptively transferred Young-TIL following lympho-depleting chemotherapy in metastatic melanoma patients, refractory to interleukin-2 and chemotherapy. Experimental Design: Young-TIL cultures for 90% of the patients were successfully generated, enabling the treatment of most enrolled patients. We report here the results of 20 evaluated patients. Results: Fifty percent of the patients achieved an objective clinical response according to the Response Evaluation Criteria in Solid Tumors, including two ongoing complete remissions (20+, 4+ months) and eight partial responses (progression-free survival: 18+, 13+, 10+, 9, 6+, 4, 3+, and 3 months). All responders are currently alive. Four additional patients showed disease stabilization. Side effects were transient and manageable. Conclusion: We showed that lympho-depleting chemotherapy followed by transfer of short-term cultured TIL can mediate tumor regression in 50% of metastatic melanoma with manageable toxicity. The convincing clinical results combined with the simplification of the process may thus have a major effect on cell therapy of cancer. Clin Cancer Res; 16(9); 2646–55. ©2010 AACR.
Clinical Responses in a Phase II Study Using Adoptive Transfer of Short-term Cultured Tumor Infiltration Lymphocytes in Metastatic Melanoma Patients
M. Besser,R. Shapira-Frommer,A. Treves,D. Zippel,O. Itzhaki,Liat Hershkovitz,Daphna Levy,A. Kubi,E. Hovav,Natalia Chermoshniuk,B. Shalmon,I. Hardan,R. Catane,G. Markel,S. Apter,A. Ben-nun,I. Kuchuk,A. Shimoni,A. Nagler,J. Schachter
Published 2010 in Clinical Cancer Research
ABSTRACT
PUBLICATION RECORD
- Publication year
2010
- Venue
Clinical Cancer Research
- Publication date
2010-04-20
- Fields of study
Medicine
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- External record
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Semantic Scholar, PubMed
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