Question: can avastin cause blood clots?
Answer: Cancer Drug Avastin Raises Blood Clot Risk. Nov. 18, 2008 -- The life-extending cancer drug Avastin raises the risk of dangerous blood clots by 33%, an analysis of clinical-trial data shows. Nearly 12% of patients taking Avastin get blood clots, with 6.3% developing clots serious enough to require treatment.