LEXINGTON, Mass., March 31, 2014 (GLOBE NEWSWIRE) -- Curis, Inc. (Nasdaq:CRIS), an oncology-focused company developing novel, targeted drug candidates for the treatment of human cancers, today reported that the U.S. Food and Drug Administration (FDA) has notified the Company that its complete response submission to the November 2013 partial clinical hold on CUDC-427 has been reviewed and that the FDA has determined that it is safe to proceed under the IND. The FDA also indicated that detailed official correspondence regarding the determination will be released in the near future. Curis will provide additional details, if applicable, based upon further communications from the FDA as they become available. "We have worked diligently with the FDA and anticipate re-opening the monotherapy Phase 1 study as soon as possible," said Ali Fattaey, Ph.D., President and Chief Operating Officer of Curis. "We continue to believe that CUDC-427 has significant potential as an anti-cancer agent and expect to proceed with CUDC-427's overall development plan, including our planned study to investigate CUDC-427 in combination with capecitabine in HER-2 negative advanced breast cancer patients." In November 2013, CUDC-427's Phase 1 study in patients with solid tumors or lymphoma was placed on partial clinical hold following the death of a patient who progressed to liver failure approximately one month following the discontinuation of CUDC-427 dosing. Under the partial clinical hold, no new patients were to be enrolled in the study until Curis provided the FDA with the requested data and analyses of all patients treated with CUDC-427, together with a protocol amendment found to be acceptable to the FDA. About CUDC-427 CUDC-427 is an oral, small molecule Smac mimetic that is designed to promote cancer cell death by antagonizing inhibitor of apoptosis (IAP) proteins. IAP proteins are a family of functionally and structurally related proteins that promote cancer cell survival by inhibiting programmed cell death, also known as apoptosis, which is a normal process inherent in every cell. Using IAP proteins and other anti-apoptotic factors, cancer cells evade apoptosis in response to a variety of signals, including those provided by anti-cancer agents such as chemotherapy, or naturally occurring inflammatory and immune signals transmitted through members of tumor necrosis factor (TNF) family. IAP inhibitors such as CUDC-427 are designed to counteract the effects of IAP proteins, thus shifting the balance away from cancer cell survival and allowing apoptosis to proceed.