palinc2000 wrote: Actually the indication for the phase 3 trial was endometrial cancer,,,the ovarian cancer trial at that time as a phase 2
Here is a summary
Zoptarelin Doxorubicin Zoptarelin doxorubicin is a complex molecule that combines a synthetic peptide carrier with doxorubicin, a well-known chemotherapy agent. The synthetic peptide carrier is an LHRH agonist, a modified natural hormone with affinity for the LHRH receptor. The design of the compound allows for the specific binding and selective uptake of the cytotoxic conjugate by LHRH receptor-positive tumors. Potential benefits of this targeted approach include a better efficacy and a more favorable safety profile with lower incidence and severity of side effects as compared to doxorubicin alone. We believe that zoptarelin doxorubicin has the potential to become the first FDA-approved medical therapy for advanced, recurrent endometrial cancer, potentially resulting in the compound's rapid adoption as a novel core therapy for patient treatment and management, representing a significant potential market opportunity for the Company. Moving forward, we will continue to develop our commercialization plans regarding zoptarelin doxorubicin in this indication. In addition, contingent on the success of the ZoptEC (Zoptarelin Doxorubicin in Endometrial Cancer) Phase 3 clinical trial, we have additional areas of interest for further therapeutic development, including ovarian, prostate, triple negative breast cancer and potentially bladder cancer. On April 16, 2015, we announced that we had filed an application for a European patent on a novel method of manufacturing zoptarelin doxorubicin. Because this compound is a complex molecule, it is expensive to synthesize, and the requested patent, if granted, may make it difficult for generic manufacturers to produce zoptarelin doxorubicin on a financially feasible basis once our composition of matter patent on the compound expires. Further, the claimed manufacturing process is expected to result in a significant reduction in cost of goods sold, providing a stronger competitive position for the Company. On April 27, 2015, we announced that an independent Data and Safety Monitoring Board ("DSMB") for the pivotal Phase 3 ZoptEC clinical trial with zoptarelin doxorubicin in women with advanced, recurrent or metastatic endometrial cancer had completed a pre-specified first interim futility analysis (after 128 events). The DSMB recommended that the Phase 3 clinical trial continue as planned.
Results
Item 5.1 Full Description of Material Change On May 1, 2017, the Company announced that the ZoptEC Phase 3 clinical study of Zoptrex™ (zoptarelin doxorubicin) in women with locally advanced, recurrent or metastatic endometrial cancer did not achieve its primary endpoint of demonstrating a statistically significant increase in the median period of overall survival of patients treated with Zoptrex™ as compared to patients treated with doxorubicin. The median overall survival period for patients treated with Zoptrex™ was 10.9 months compared to 10.8 months for patients treated with doxorubicin. This is not a statistically significant, clinically meaningful increase in overall survival and thus the ZoptEC Phase 3 clinical study did not meet its primary endpoint. In addition, Zoptrex™ generally performed no better than the comparator drug with respect to the secondary efficacy endpoints. For example, the median period of progression-free survival of the patients in the Zoptrex™ arm of the study was identical to that for patients in the doxorubicin arm. Finally, there was no meaningful difference between the two arms with respect to safety; the number of patients with cardiac disorders was similar – eight in the Zoptrex™ arm and nine in the doxorubicin arm. The results of the study are not supportive to pursue regulatory approval,