The law offices of frank r. cruz announces investigation of spero therapeutics, inc. (spro) on behalf of investors

Los angeles--(business wire)--the law offices of frank r. cruz announces an investigation of spero therapeutics, inc. (“spero” or the “company”) (nasdaq: spro) on behalf of investors concerning the company's possible violations of federal securities laws. if you are a shareholder who suffered a loss, click here to participate. on october 28, 2021, spero announced that it had submitted a new drug application (“nda”) to the u.s. food and drug administration (“fda”) for its urinary tract infection
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