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Main | | |
| Brand Name | Iressa |
| Generic Name | gefitinib |
| Mechanism | EGFR kinase inhibitor |
| Subsets | Never-smokers, Asians and adenocarcinoma patients have better survival with EGFr inhibitors than smokers, non-Asians and squamous cell patients. |
| | Women might have higher response rates than men. |
| | 17% of patients have EGFR mutations (Spain, NEJM 2009). |
| Competition | Tarceva, (OSIP/Roche). |
| IP | 5457105 describes compound and expires in 2013. 5770599 describes compound and expires in 2017. |
| Papers | Gefitinib or Carboplatin-Paclitael in Pulmonary Adenocarcinoma. Mok et al. NEJM 361;10:947-957. |
| Clinical Trials | |
| | Phase III "IPASS" Gefitinib vs Carbo-Tax n=1217 in 1L NSCLC Asian non-smoker/light-smoker. ESMO 2008 presentation. |
| | 12-month PFS of 24.9% vs 6.7% in ITT, HR=0.74. median PFS similar: 5.7m vs. 5.8m. HR for OS =0.91 (18.6m vs 17.3m). |
| | n=261 were EGFR+ and HR =0.48. (Only 437 bio markers could be analyzed). |
| | n=176 were EGFR- and HR=2.85. |
| | |
| | Phase III INTEREST - Iressa vs Taxotere in 2L NSCLC - Lancet 2008 - 2004-2006 recruitment. |
| | Met non-inferiority with 7.6mo vs 8.0mo, HR=1.02 OS. Missed superiority in high-copy EGFR with 8.4mo vs 7.5mo. |
| | n=1466 all receiving 1L platinum. Study was open-label. Co-primary endpoints of non-inferior MOS and superior MOS for Iressa in high-copy EGFr status. |
| | |
| | Phase III INVITE 1L NSCLC patients unsuited for chemotherapy |
| | |
| | Phase III ISEL - Iressa vs placebo |
| | Fails superiority primary endpoint. 5.6 vs 5.1mo. P=0.09. 90% refractory to chemo. |
| | |
| | Phase II SIGN |
| | |
| | Phase III V-15-32 Japan n=489 |
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| | |
| | Phase III BR.21 - Tarceva vs placebo |
| | 6.7mo vs 4.7mo, SS MOS improvement. |