Data from Pharmawand - Curated by EPG Health - Date added 13 April 2019

TRACON Pharmaceuticals announced that its Phase III TAPPAS trial evaluating TRC 105 (carotuximab) in combination with Votrient (pazopanib) in patients with advanced or metastatic angiosarcoma was terminated for futility based on the recommendation of the Independent Data Monitoring Committee (IDMC) following its review of interim unblinded safety and efficacy data from more than 120 patients enrolled in the trial at the time of the analysis. TRACON will work with investigators to appropriately conclude the study in a manner consistent with the best interests of each patient. Data from this study will be analyzed and submitted for presentation at an upcoming scientific congress.

The TAPPAS trial was designed to compare treatment with TRC105 and Votrient to treatment with single agent Votrient in up to 340 patients with advanced or metastatic angiosarcoma. Patients were randomized in equal numbers and the primary endpoint was progression free survival by RECIST 1.1. Key secondary endpoints included objective response rate, overall survival, safety and tolerability.

Comment: Given these data, the company has said it will terminate further enrollment in company sponsored trials of TRC105 in oncology. It plans to continue to support its partner, Santen, in their development of DE-122 in wet AMD, where the anti-angiogenic and anti-fibrotic properties of endoglin inhibition may be more relevant than in oncology.


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