Clovis Oncology, Inc.

Robbins Arroyo LLP: Clovis Oncology, Inc. (CLVS) Misled Shareholders According to a Recently Filed Lawsuit

Robbins Arroyo LLP announces that a lawsuit was filed against Clovis Oncology, Inc. (NASDAQGS: CLVS) in the Supreme Court of the State of New York, County of New York. The complaint is brought for alleged violations of the Securities Act of 1933 by Clovis’s officers and directors. Clovis, a biopharmaceutical company, focuses on acquiring, developing, and commercializing anti-cancer agents in the United States, Europe, and internationally.

Clovis Accused of Overstating the Efficacy of Its Drug

According to the complaint, Clovis officials made false, incomplete, and misleading statements concerning test data which purportedly showed the efficacy and safety of Clovis’s lung cancer drug – rociletinib. It was imperative for Clovis to be able to show that rociletinib was at least as safe and effective as Tagrisso—the treatment of its competitor, AztraZeneca. Shortly after AstraZeneca released data showing Tagrisso was safe and effective, Clovis released test data claiming rociletinib was just as safe and effective, causing the company’s stock price to increase. Then, on May 31, 2015, at the American Society of Clinical Oncology Medical Conference, Clovis claimed that it had observed an objective response rate (“ORR”) of 60% for rociletinib, which represented the percentage of patients who experienced a clinically meaningful tumor shrinkage when treated with the drug.

However, on November 16, 2015, Clovis disclosed that the rociletinib ORR that it had previously reported was “based primarily on unconfirmed responses” and that rociletinib’s ORR based on confirmed responses was just 30%. On April 8, 2016, the U.S. Food and Drug Administration revealed that Clovis had concealed that rociletinib was not well tolerated, and that serious adverse events were reported in 47% of patients treated with the drug. On this news, Clovis’s stock fell 17% to close at $15.77 per share on April 8, 2016.

Clovis Shareholders Have Legal Options

Concerned shareholders who would like more information about their rights and potential remedies can contact attorney Darnell R. Donahue at (800) 350-6003, or you can complete the form below and we will contact you directly.


Shareholder Information

Items marked with an asterisk (*) are required information.

First Name * Last Name *
Phone *
E-mail * Confirm: E-mail *
Number of Shares Owned:

Please Note: Neither the submission to nor the receipt of information by Robbins Arroyo LLP or one of its attorneys through this website constitutes an agreement by our firm to represent the individual and does not create an attorney-client relationship. Please do not send confidential or sensitive information through this website. This information should be communicated through a direct contact with an individual at the firm.

* I have read the disclaimer information

    Send This Post