MADISON, Wis., Nov. 17, 2016 (GLOBE NEWSWIRE) -- Cellectar Biosciences, Inc. (Nasdaq:CLRB) (the "company"), an oncology-focused, clinical stage biotechnology company, today announces that following the successful conjugation of multiple, natural product cytotoxic molecules developed by Pierre Fabre to Cellectar's PDC delivery platform, it has initiated in vivo studies for a variety of solid tumors. Harnessing a selection of linkers to attach the cytotoxic molecules to the PDC platform, the company has constructed a series of novel compounds specifically designed for improved tumor targeting. This research collaboration falls under the company's CLR CTX programs, geared to convert non-targeted cytotoxic agents into targeted cancer treatments when combined with Cellectar's proprietary delivery system. The drug's targeting enhancement is designed to further improve efficacy and reduce adverse events. As part of the Pierre Fabre research collaboration, Cellectar has already completed a series of in vitro studies with the newly created compounds, and is currently compiling early efficacy data. Cellectar will then initiate additional in vitro and in vivo studies in melanoma, lung, and colon cancers, as well as in additional solid tumors. "We are pleased with the advancement of these programs and look forward to sharing data from our development work with Pierre Fabre," said Jim Caruso, president and CEO of Cellectar Biosciences. "This partnership continues to create value for both of our companies. In parallel, we continue to make significant progress on our lead radiotherapeutic PDC, CLR 131, for the treatment of relapsed/refractory multiple myeloma, including our ongoing Phase I and our impending NCI-supported Phase II clinical trial in selected hematologic malignancies."