Compass Therapeutics Reports on Tovecimig Trial Data

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Compass Therapeutics is announcing statistically significant top-line data on the primary efficacy endpoint from its COMPANION-002 trial, an ongoing Phase 2/3 randomized study of tovecimig in combination with paclitaxel in patients with advanced biliary tract cancer. The trial evaluated tovecimig in 168 patients with unresectable advanced, metastatic or recurrent biliary tract cancers who have received one prior systemic chemotherapy regimen.

The company says 17.1% of patients treated with tovecimig in combination with paclitaxel (19 of 111 patients) had an objective response rate, including one complete response, compared to 5.3% for patients treated with paclitaxel alone (3 of 57 patients). Regarding secondary endpoints (progression-free survival, overall survival, and duration of response), it says data are not yet mature for these analyses. “The trial requires a threshold of events in 80% of patients to trigger the secondary endpoint analyses,” it says, adding that these should be reported in the fourth quarter.

Regarding safety, Compass says tovecimig’s safety profile is consistent with prior studies involving the therapy.

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