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Clinical trial

Tolerability and Efficacy of Tremelimumab in Combination With Gefitinib in NSCLC Patients (GEFTREM)

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Last updated:10th Jan 2014

This is an open-label phase 1, safety, PK, and preliminary efficacy study of oral Gefitinib and IV Tremelimumab in previously treated NSCLC patients who have documented evidence of an activating mutation in the EGFR gene and have failed treatment with an EGFR inhibitor such as Erlotinib or Gefitinib. The primary objective of this phase I, is to determine the safety and tolerability of oral Gefitinib in combination with escalating doses of Tremelimumab and to establish a recommended phase 2 dose. Secondary objectives include evaluation of, pharmacokinetics, immunogenicity, antitumor activity of Gefitinib and Tremelimumab combination. The exploratory objectives are to evaluate biomarkers that may correlate with activity or prospectively identify patients likely to respond to Tremelimumab and Gefitinib.

The biological rationale for such a study is that even though the disease is progressing it is likely that EGFR sensitive clones, although diminished under the pressure from the EGFR TKI, are still present. Therefore, withdrawing the inhibitory pressure of the EGFR TKI can potentially allow regrowth of the EGFR sensitive cells. On the other hand, the proliferation of EGFR resistant clones needs to be suppressed by another therapeutic approach. Until today no association of chemotherapy and TKI EGFR has demonstrated clinical benefit. Moreover, patients may have received chemotherapy and the likelihood of chemosensitivity is very low. So, the association of Gefitinib with immune checkpoint blockade is very attractive and may result in clinical benefit in NSCLC with EGFRmut.

Category Value
Study start date 2014-01-10

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