Tolerx Explained

Tolerx, Inc.
Type:Private
Foundation:2000
Location:Cambridge, Massachusetts
Industry:Biotechnology
Homepage:http://www.tolerx.com/

Tolerx, Inc. was a biopharmaceutical company headquartered in Cambridge, Massachusetts. The company was focused on discovering and developing new therapies designed to treat patients by reprogramming the immune system, allowing for long-term remission of immune-related diseases after a short course of therapy. Targeted diseases include type 1 diabetes, rheumatoid arthritis, Inflammatory bowel disease (IBD), cancer, chronic and viral diseases. In 2008, Tolerx was named one of Fierce Biotech’s Fierce 15.[1] In October 2011, Tolerx was shut down due to an unsuccessful Phase III trial in patients recently diagnosed with Type 1 diabetes.[2]

Development programs

Tolerx’s lead product candidate, otelixizumab, also known as TRX4, is a novel monoclonal antibody being developed for the treatment of autoimmune type 1 diabetes and other autoimmune diseases. The efficacy and safety of otelixizumab in the treatment of type 1 diabetes is currently being studied in a pivotal Phase 3 study called DEFEND (Durable-response therapy Evaluation For Early or New-onset type 1 Diabetes).[3] [4] Tolerx entered into a collaboration with Glaxo SmithKline in October 2007 relating to the development and commercialization of otelixizumab.[5] Otelixizumab has been granted Orphan Drug Status by the U.S. Food and Drug Administration.[6]

Additionally, in collaboration with Genentech, Tolerx is developing a modified version of TRX1, a humanized monoclonal antibody that binds to the CD4 receptor found on both T effector and T regulatory cells. The safety and activity of TRX1 was evaluated by Tolerx in a single-dose, placebo-controlled, double-blind Phase 1 clinical trial. The data from the Phase 1 clinical trial showed TRX1 was well tolerated, did not deplete T cells, and had no observed first-dose side effect.[7] The modified version of TRX1, designated MTRX1011A, is being developed for the treatment of autoimmune diseases, which may include rheumatoid arthritis, cutaneous lupus erythematosus (CLE), multiple sclerosis (MS), and systemic lupus erythematosus (SLE).[8]

Leadership

Herman Waldmann, PhD, FRCPath, MRCP, FRS, FMedSci,[9] Co-Founder, Chairman, Scientific Advisory Board, Professor of Pathology, Head of the Sir William Dunn School of Pathology and Clinical Director of the Therapeutic Antibody Centre (TAC), University of Oxford

“A pioneer in the field of monoclonal antibody production”[10]

Douglas J. Ringler, VMD,[11] [12] Co-Founder, President & CEO

Louis Vaickus, MD[11] [13] Chief Medical Officer

Thomas A. Shea, MBA[14] Chief Financial Officer

Notes and References

  1. http://www.fiercebiotech.com/special-reports/tolerx-2008-fierce-15 Fierce Biotech’s 2008 Fierce 15
  2. Web site: Exclusive: Tolerx cuts staff, auctioning assets after PhIII failure.
  3. http://www.clinicaltrials.gov/ct2/show/NCT00678886?term=otelixizumab&rank=2 From ClinicalTrials.gov, a Service from the U.S. National Institutes of Health
  4. http://www.DefendAgainstDiabetes.com www.DefendAgainstDiabetes.com
  5. http://sis.windhover.com/buy/abstract.php?id=200720729 Windhover Information “GSK buys rights to Tolerx's diabetes antibody otelixizumab”
  6. http://www.masshightech.com/stories/2008/05/12/focus1-NE-drug-makers-find-individual-paths-into-growing-diabetes-arena.html Mass High Tech, May 16, 2008, “N.E. drug makers find individual paths into growing diabetes arena”
  7. Vaickus, L.. Pharmacokinetics/pharmacodynamics of nondepleting anti-CD4 monoclonal antibody (TRX1) in healthy human volunteers . Pharm. Res. . 23 . 1 . 95–103 . Jan 2006 . 16308668 . Stefanich . E . Anand . BS . Fielder . PJ . Vaickus . L . 10.1007/s11095-005-8814-3. 2209907 .
  8. http://sis.windhover.com/buy/abstract.php?id=200320004 Windhover Information “Genentech licenses Tolerx's TRX1 for autoimmune disease”
  9. http://investing.businessweek.com/research/stocks/private/person.asp?personId=1266289 Business Week Personal Profile
  10. http://www.enterprise.cam.ac.uk/successstories.php?key=51 University of Cambridge “Success Stories”
  11. http://www.onemedplace.com/database/list/cid/944/ OneMedPlace Profile
  12. http://investing.businessweek.com/research/stocks/private/person.asp?personId=1266287 Business Week Personal Profile
  13. http://investing.businessweek.com/research/stocks/private/person.asp?personId=8112093 Business Week Personal Profile
  14. http://investing.businessweek.com/research/stocks/private/person.asp?personId=140777 Business Week Personal Profile