Preclinical data for potent IDO pathway inhibitor presented at AACR 2013 annual meeting

Published on April 8, 2013 at 8:10 AM · No Comments

NewLink Genetics Corporation (NASDAQ: NLNK), a biopharmaceutical company primarily focused on discovering, developing and commercializing immunotherapeutic products in oncology, announced today that the company presented preclinical data for NLG919, a potent IDO (indoleamine-(2,3)-dioxygenase) pathway inhibitor, at the American Association for Cancer Research (AACR) 2013 annual meeting. These data demonstrate that NLG919 potently inhibits the IDO pathway in vitro and in cell based assays, is orally bioavailable and has a favorable pharmacologic and toxicity profile. NLG919 is the second pipeline candidate from NewLink's IDO Pathway Inhibitor technology platform to be announced.  This platform has also produced indoximod (NLG8189 or D1-MT) which is currently in Phase 2 clinical trials for the treatment of prostate cancer and metastatic breast cancer. Furthermore, NLG919 and indoximod show remarkable synergistic T-cell activation and antitumor activity. 

"These data further support our view that IDO is a complex pathway with critical downstream immunomodulatory effects, and strategies that aim at multiple targets within this pathway may hold the most promise," commented Dr. Charles Link , Chairman and Chief Executive Officer of NewLink.  "We are encouraged by NLG919's anti-tumor and pharmacological properties and will continue to evaluate it, along with other IDO pathway inhibitors in our preclinical and clinical pipeline, as an innovative approach to harnessing the immune system to treat cancer."

In a poster presentation entitled "NLG919, a novel indoleamine-2,3-dioxygenase (IDO)-pathway inhibitor drug candidate for cancer therapy," NewLink scientists presented preclinical data to demonstrate  NLG919's on target anti-tumor effects as well as favorable oral bioavailability, pharmacokinetic and pharmacodynamic profiles.  

The principal findings reported in the NLG919 study include:

  • NLG919 potently inhibits the IDO pathway in vitro and in cell based assays.
  • NLG919 potently blocks IDO-induced antigen-specific T-cell suppression and restores robust T-cell responses. 
  • NLG919 demonstrates single agent anti-tumor activity.
  • NLG919 and indoximod show synergistic T-cell activation and antitumor activities.
  • NLG919 is orally bioavailable and has a favorable pharmacokinetic and toxicity profile.
Source:

NewLink Genetics Corporation

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