NewLink Genetics Corporation Presents Preliminary Safety Data From Randomized Phase 2 Trial of Indoximod, an IDO Pathway Inhibitor, at San Antonio Breast Cancer Symposium

AMES, Iowa and SAN ANTONIO, Dec. 10, 2015 (GLOBE NEWSWIRE) -- NewLink Genetics Corporation (NASDAQ:NLNK), a biopharmaceutical company at the forefront of discovering, developing and commercializing novel immuno-oncology product candidates, including both cellular immunotherapy and checkpoint inhibitor platforms, to improve the lives of patients with cancer, today announced the presentation of preliminary safety data from NLG2101, a randomized Phase 2 trial evaluating an IDO pathway inhibitor indoximod in combination with taxane-based chemotherapy for patients with breast cancer. The data were presented today at the 2015 San Antonio Breast Cancer Symposium.

NLG2101 is a randomized, double-blind, placebo-controlled Phase 2 trial of indoximod 1200 mg orally, twice daily in combination with docetaxel 75 mg/m2 every 3 weeks or paclitaxel 80 mg/m2 weekly in patients with metastatic ER/PR positive or negative, HER2 negative breast cancer. The trial, which reached its goal of 154 patients enrolled across multiple sites in the United States and Europe, is designed to evaluate  the combination of indoximod and chemotherapy as first-line therapy for patients with metastatic breast cancer. The study’s primary endpoint is progression-free survival, with secondary endpoints of overall survival, response rate per RECIST 1.1 criteria, safety, and immune response correlative assays. 

Preliminary evaluable safety data from 128 patients, when considered in a blinded fashion pooling control and treatments arms of the study, suggests that the regimen is generally well tolerated. The addition of indoximod to standard of care chemotherapy for metastatic breast cancer did not increase expected adverse events known to be associated with the administered chemotherapies. Additionally, no unexpected safety signals were reported with the combination of indoximod with docetaxel or paclitaxel, suggesting that there is no additional or unique toxicity with the addition of indoximod to chemotherapy. 

Objective responses were achieved in an earlier Phase 1 trial combining indoximod and docetaxel   in patients with metastatic solid tumors, including breast tumors.

“I believe this is an exciting chemoimmunotherapy combination regimen for patients with metastatic breast cancer,” said Shou-Ching Tang, M.D., Ph.D., Professor of Medicine, Leader, Breast Cancer Multidisciplinary Team at Augusta University. “These data suggest that indoximod may become a valuable addition to standard breast cancer treatment regimens due to the potential for enhancing a patient’s immune system to fight cancer without additive toxicity. I eagerly await the full results of this trial evaluating a promising immune check point inhibitor in combination with chemotherapy.”

The data, presented during the poster session “Treatment: Immunotherapy,” correspond to the abstract (P2-11-09) entitled, “A phase 2 randomized trial of the IDO pathway inhibitor indoximod in combination with taxane based chemotherapy for metastatic breast cancer: preliminary data.”

Indoximod is an orally available small molecule that has shown the potential to interfere with multiple targets within the indoleamine 2,3-dioxygenase (IDO) pathway. It is designed to be used in combination with other therapeutic agents to maximize the body's immune response against a range of tumor types. Indoximod is currently in multiple Phase 2 clinical trials for the treatment of patients with breast, prostate, pancreatic, melanoma and brain cancers and in Phase 1 clinical trials for the treatment of pediatric patients with primary malignant brain tumors.

About NewLink Genetics Corporation

NewLink Genetics is a biopharmaceutical company at the forefront of discovering, developing and commercializing novel immuno-oncology product candidates, including both cellular immunotherapy and checkpoint inhibitor platforms, to improve the lives of patients with cancer. NewLink Genetics’ portfolio includes biologic and small molecule immunotherapy product candidates intended to treat a wide range of oncology indications. NewLink Genetics’ product candidates are designed to harness multiple components of the immune system to combat cancer without significant incremental toxicity, either as a monotherapy or in combination with other treatment regimens. For more information, please visit

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CONTACT: Corporate Contact:
Jack Henneman
Chief Financial Officer, NewLink Genetics

Donna LaVoie or Kristina Coppola
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David Connolly
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