Onconova Therapeutics Inc. said it was no longer in compliance with Nasdaq's minimum closing bid listing requirement of $1 per share.

The Newtown, Pa.-based company has until Nov. 5 to regain compliance by attaining the closing bid price of at least $1 per share for a minimum of 10 consecutive business days.

Onconova said it intends to monitor its closing bid price and was considering options to resolve the noncompliance issue.