[Ipilimumab and metastatic lung cancer: Can we change the natural history of the disease?].

INTRODUCTION

Ipilimumab (anti CTLA-4 antibody) aims to activate antitumor immunity. This treatment is being evaluated in non-small cell lung cancer.

CASE REPORT: We report a case of a stage IV adenocarcinoma patient randomized in 2008 in the phase II trial CA 184-104 evaluating the combination of ipilimumab to chemotherapy with carboplatin and paclitaxel. After an initial partial response to chemotherapy, the patient achieved a complete response with ipilimumab as maintenance therapy. However, it was complicated by grade 3 gastro-intestinal toxicity leading to stop the ipilimumab. However, this complete response persists after 6 years.

CONCLUSIONS

Our case illustrates the contribution of immunotherapy at least in some patients. The mechanisms of action, relationship between efficacy and toxicity and predictors of efficacy remain to be defined.