Published on September 29, 2012 at 5:14 AM
The GALAXY trial is based on a two-stage, operationally adaptive design. The first-stage, randomized, open-label, 240-patient Phase 2b portion of the trial is enrolling Stage IIIB/IV NSCLC patients who have progressed following one prior line of therapy, and is designed to identify the patient population, defined by biomarker or other disease characteristic, for advancement into the Phase 3 portion of the trial.
An interim analysis was planned for when approximately 80% of the target 240 adenocarcinoma patients had been enrolled. A total of 187 patients were enrolled at the time of analysis, of which 172 patients had been entered into the clinical database at the time of data cutoff.
"The preliminary results from GALAXY indicate that the addition of ganetespib to docetaxel is well tolerated and may improve outcomes in patients compared to docetaxel alone," said Dr. Ramalingam, a Principal Investigator of the study. "This includes promising improvements in survival seen across the broad adenocarcinoma population as well as in key predefined patient populations. A well-tolerated combination regimen that extends survival associated with salvage therapy in NSCLC will meet a much awaited need to improve the current standard of care."
Targeting the dependence of cancer cell growth and proliferation pathways on the Hsp90 chaperone represents a new way to interrupt cancer cell signaling and reduce tumor aggressiveness. Hsp90 inhibition by ganetespib simultaneously inhibits multiple critical cancer-promoting pathways, including pathways responsible for tumor metastasis, angiogenesis, and resistance to conventional therapies.