Novelos Therapeutics Announces Successful Completion of First Cohort In Lung Cancer Trial With I-124-CLR1404 (LIGHT) Cancer-Targeted PET Imaging Agent at UW Carbone Cancer Center

MADISON, Wis., April 24, 2012 /PRNewswire/ -- Novelos Therapeutics, Inc. (OTCQX: NVLT), a pharmaceutical company developing novel drugs for treatment and diagnosis of cancer, today announced that the University of Wisconsin Carbone Cancer Center, a leading oncology research institution, has successfully completed the first cohort in a Phase 1-2 positron emission tomography (PET) imaging trial of I-124-CLR1404 (LIGHT), a cancer-targeted PET imaging agent, in patients with advanced non-small cell lung cancer (NSCLC).  The first cohort comprised three patients dosed with LIGHT at 5 mCi. Details of the trial design are available at www.clinicaltrials.gov ID: NCT00582283, or at www.novelos.com in the "Clinical Trials" section. Anne M. Traynor, M.D., is the trial's principal investigator. Detailed trial results are expected to be presented at a scientific venue at a later date.

"The preliminary results from the first cohort are encouraging. We see strong uptake of LIGHT in cancerous tumors against very low background and have not observed any adverse safety signals," said Dr. Traynor. "Although still early and in a small number of subjects, there is some suggestion that LIGHT imaging was more tumor-selective than the comparator modality 18F-fluorodeoxyglucose (18F-FDG) PET."

"Having observed initial cancer-specific uptake with LIGHT at 5 mCi in NSCLC patients, we now look forward to evaluating the next dose level in this indication," said Kim Hawkins, Vice President of Clinical Development of Novelos. "The protocol was prospectively designed to dose three patients at 3 mCi in the next cohort, as we seek to identify a minimally effective dose, and we look forward to obtaining these results in a few months."

"We are very pleased with the positive initial LIGHT imaging data in lung cancer patients obtained to date, and with our collaboration with the UW Carbone Cancer Center," said Harry Palmin, President and CEO of Novelos. "We believe these data begin to establish proof-of-concept for LIGHT as a PET imaging agent for NSCLC, could advance our partnering discussions and could be used to calculate effective doses for Phase 2 clinical trials of I-131-CLR1404 (HOT). HOT is our chemically identical small-molecule, broad-spectrum, cancer-targeted molecular radiotherapeutic that delivers cytotoxic radiation directly and selectively to cancer cells and cancer stem cells."

About LIGHT
LIGHT is a small molecule imaging agent that we believe has first-in-class potential for selective detection of tumors and metastases in a broad range of cancers. LIGHT is comprised of a small, non-pharmacological quantity of CLR1404 (COLD, acting as a cancer-targeted delivery and retention vehicle) labeled with the short-lived radioisotope, iodine-124, a new PET imaging isotope. PET imaging used in conjunction with CT scanning has now become the imaging method of choice in oncology. In studies to date, LIGHT selectively illuminated malignant tumors in 52 of 54 animal models of cancer, demonstrating broad-spectrum, cancer-selective uptake and retention.  Investigator-sponsored Phase 1-2 trials of LIGHT as a PET imaging agent are ongoing. The trials include lung cancer, brain cancer and, starting in the second quarter of 2012, other solid tumors. These human trials, if successful, will serve three important purposes. First, they would provide proof-of-concept for LIGHT itself as a PET imaging agent with the potential to supplant the current "gold standard" agent, 18-fluoro-deoxyglucose (FDG), due to what we believe to be LIGHT's superior cancer-specificity and more favorable logistics of clinical use. Second, favorable results would advance partnering discussions for LIGHT. Third, tumor uptake data will accelerate clinical development of HOT by predicting efficacy and enabling calculation of efficacious doses of HOT for Phase 2 trials.

About the UW Carbone Cancer Center in Madison
The University of Wisconsin Carbone Cancer Center (UWCCC) is recognized throughout the nation as one of the leading innovators in cancer research, quality patient care and active community involvement. It is the only comprehensive cancer center, as designated by the National Cancer Institute, in Wisconsin. An integral part of the UW School of Medicine and Public Health, the UWCCC unites physicians and scientists who work together in translating discoveries from research laboratories into new treatments that benefit cancer patients. To learn more about clinical studies and other initiatives, visit www.uwhealth.org/uw-carbone-cancer-center/for-researchers/uwccc/28373.

About Novelos Therapeutics, Inc.
We are a pharmaceutical company developing novel drugs for the treatment and diagnosis of cancer. Our three cancer-targeted compounds are selectively taken up and retained in cancer cells, including cancer stem cells, versus normal cells. Thus, our therapeutic compounds appear to directly kill cancer cells while minimizing harm to normal cells. This offers the potential for a paradigm shift in cancer therapy by providing efficacy versus all three major drivers of mortality in cancer: primary tumors, metastases and stem cell-based relapse. I-124-CLR1404 (LIGHT) is a small-molecule cancer-targeted PET imaging agent. We believe LIGHT has first-in-class potential and Phase 1-2 clinical trials are ongoing. I-131-CLR1404 (HOT) is a small-molecule, broad-spectrum, cancer-targeted molecular radiotherapeutic that delivers cytotoxic radiation directly and selectively to cancer cells and cancer stem cells. We believe HOT also has first-in-class potential. HOT Phase 1b dose-escalation trial is ongoing and we expect HOT to enter Phase 2 trials in the first quarter of 2013 as a monotherapy for solid tumors with significant unmet medical need, subject to additional funding. CLR1404 (COLD), a pre-clinical cancer-targeted non-radioactive chemotherapy, works primarily through Akt inhibition. Together, we believe our compounds are able to "find, treat and follow" cancer anywhere in the body in a novel, effective and highly selective way. For additional information please visit www.novelos.com.

Novelos Therapeutics, Inc.

Madison, WI                Boston, MA

This news release contains forward-looking statements. You can identify these statements by our use of words such as "may," "expect," "believe," "anticipate," "intend," "could," "estimate," "continue," "plans," or their negatives or cognates. Such statements are valid only as of today, and we disclaim any obligation to update this information. These statements are only estimates and predictions and are subject to known and unknown risks and uncertainties that may cause actual future experience and results to differ materially from the statements made. These statements are based on our current beliefs and expectations as to such future outcomes. Drug discovery and development involve a high degree of risk. Factors that might cause such a material difference include, among others, uncertainties related to the ability to attract and retain partners for our technologies, the identification of lead compounds, the successful preclinical development thereof, the completion of clinical trials, the FDA review process and other government regulation, our  pharmaceutical collaborators' ability to successfully develop and commercialize drug candidates, competition from other pharmaceutical companies, product pricing and third-party reimbursement.

SOURCE Novelos Therapeutics, Inc.

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