TRACON Pharmaceuticals announced positive top-line clinical results from a Phase 1 study of TRC105 and Opdivo for the treatment of non-small cell lung cancer. The combination of TRC105 and Opdivo was well-tolerated without the development of dose limiting toxicity in six patients who were treated as part of dose escalation. One of these six patients, whose archival tumor did not express PD-L1 and who had not received prior PD-1/PD-L1 checkpoint inhibition treatment, developed a partial response and remains on study after 10 months. Two of the other five patients, one of whom who progressed following prior Opdivo treatment, remain on trial with stable disease. Patients are currently enrolling into two parallel 12 patient expansion cohorts. TRC105 is currently being studied in a pivotal Phase 3 trial in angiosarcoma and multiple Phase 2 clinical trials, in combination with VEGF inhibitors, as well as in a Phase 1 trial with Opdivo. TRC105 has received orphan designation for the treatment of soft tissue sarcoma in both the U.S. and EU.
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