Patterns of response with talimogene laherparepvec in combination with ipilimumab or ipilimumab alone in metastatic unresectable melanoma

Jason Chesney, Igor Puzanov, Frances Collichio, Mohammed M. Milhem, Axel Hauschild, Lisa Chen, Anjali Sharma, Claus Garbe, Parminder Singh, Janice M. Mehnert

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Talimogene laherparepvec (T-VEC) has demonstrated efficacy for unresectable melanoma. We explored response patterns from a phase 2 study evaluating patients with unresectable stage IIIB–IVM1c malignant melanoma who received T-VEC plus ipilimumab or ipilimumab alone. Patients with objective response per modified irRC were evaluated for pseudo-progression (single ≥25% increase in tumour burden before response). Patients without pseudo-progression were classified by whether they responded within or after 6 months of treatment start; those with pseudo-progression were classified by whether pseudo-progression was due to increase in existing lesions or development of new lesions. Overall, 39% (n = 38/98) in the combination arm and 18% (n = 18/100) in the ipilimumab arm had an objective response. Eight responders (combination, n = 7 [18.4%]; ipilimumab, n = 1 [5.6%]) had pseudo-progression; most occurred by week 12 and were caused by an increase in existing lesions. These data reinforce use of T-VEC through initial progression when combined with checkpoint inhibitors. Trial Registration NCT01740297 (ClinicalTrials.gov; date of registration, December 4, 2012); 2012-000307-32 (ClinicalTrialsRegister.eu; date of registration, May 13, 2014).

Original languageEnglish (US)
Pages (from-to)417-420
Number of pages4
JournalBritish journal of cancer
Volume121
Issue number5
DOIs
StatePublished - Aug 27 2019

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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    Chesney, J., Puzanov, I., Collichio, F., Milhem, M. M., Hauschild, A., Chen, L., Sharma, A., Garbe, C., Singh, P., & Mehnert, J. M. (2019). Patterns of response with talimogene laherparepvec in combination with ipilimumab or ipilimumab alone in metastatic unresectable melanoma. British journal of cancer, 121(5), 417-420. https://doi.org/10.1038/s41416-019-0530-6