NEW YORK, Aug. 4, 2023 /PRNewswire/ -- Pomerantz LLP is investigating claims on behalf of investors of Mersana Therapeutics, Inc. ("Mersana" or the "Company") (NASDAQ: MRSN). Such investors are advised to contact Robert S. Willoughby at newaction@pomlaw.com or 888-476-6529, ext. 7980.
The investigation concerns whether Mersana and certain of its officers and/or directors have engaged in securities fraud or other unlawful business practices.
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On June 15, 2023, Mersana issued a press release "announc[ing] that the U.S. Food and Drug Administration (FDA) has issued a partial clinical hold pausing new patient enrollment in UP-NEXT and UPGRADE-A, the company's ongoing clinical trials of UpRi in platinum-sensitive ovarian cancer. UPLIFT, Mersana's ongoing clinical trial of UpRi in platinum-resistant ovarian cancer, completed enrollment in October 2022." Mersana stated that "[t]he partial clinical hold follows a submission by Mersana of a recent aggregate safety report of all patients dosed with UpRi (approximately 560 patients) evaluating bleeding events" and that "Mersana's recent assessment determined that serious bleeding events appear to occur at a higher rate than background. While most bleeding cases in this aggregate safety analysis were low-grade, five (<1%) Grade 5 (fatal) bleeding events were observed among the approximately 560 patients dosed to date. The causes of bleeding events remain under investigation."
On this news, Mersana's stock price fell $5.66 per share, or 59.27%, to close at $3.89 per share on June 15, 2023.
Pomerantz LLP, with offices in New York, Chicago, Los Angeles, London, Paris, and Tel Aviv, is acknowledged as one of the premier firms in the areas of corporate, securities, and antitrust class litigation. Founded by the late Abraham L. Pomerantz, known as the dean of the class action bar, Pomerantz pioneered the field of securities class actions. Today, more than 85 years later, Pomerantz continues in the tradition he established, fighting for the rights of the victims of securities fraud, breaches of fiduciary duty, and corporate misconduct. The Firm has recovered numerous multimillion-dollar damages awards on behalf of class members. See www.pomlaw.com.
CONTACT:
Robert S. Willoughby
Pomerantz LLP
rswilloughby@pomlaw.com
888-476-6529 ext. 7980
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SOURCE Pomerantz LLP
