Additionally, the FDA stated in the CRL that it would recommend placement of lorcaserin in Schedule IV of the Controlled Substance Act based on its review of the materials submitted in the NDA. The CRL provided the opportunity to complete preclinical studies that may lead to a different recommendation.

"This is an important step for us toward the FDA's approval of lorcaserin," said Jack Lief, Arena's President and Chief Executive Officer. "While the complete response letter provides us with recommendations from the agency, we intend to meet with the FDA to obtain further clarity on the approval path and timeline. We will work with the agency to address the issues with our NDA as quickly as possible."

Arena intends to request a Type A meeting with the FDA to clarify its requests, and, if the meeting is granted, the FDA's guidance states that it should occur within 30 days of the request.

Lonnel Coats, President and Chief Executive Officer of Eisai Inc., stated, "Eisai is committed to collaborating with Arena to address the FDA's requests. Obesity is an epidemic in America, and our goal is to bring lorcaserin to physicians and patients who need additional weight loss options."

SOURCE Arena Pharmaceuticals, Inc.