AcelRx Pharmaceuticals, Inc. filed SEC Form 8-K: Entry Into A Material Definitive Agreement, Termination Of A Material Definitive Agreement, Creation Of A Direct Financial Obligation Or An Obligation Under An Off-Balance Sheet Arrangement Of A Registrant, Signatures   Pursuant To The Requirements Of The Securities Exchange Act Of 1934, The Registrant Has Duly Caused This Report To Be Signed On Its Behalf By The Undersigned Hereunto Duly Authorized