March 22 (Reuters) - Aveo Pharmaceuticals Inc
* Aveo Pharmaceuticals says have identified conditions and events that raise substantial doubt about ability to continue as a going concern - SEC filing
* Aveo Pharmaceuticals says "continue as a going concern, we must secure additional capital to provide us with additional liquidity"
* Aveo Pharma - believe about $23.3 million in existing cash,cash equivalents, securities at Dec. 31, 2016, could allow to fund planned operations into Q4 2017
* Aveo Pharmaceuticals Inc says additional funds will be needed to extend planned operations into 2018 Source text:(bit.ly/2nK7USy) Further company coverage: