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Monoclonal antibody
TypeWhole antibody
SourceHumanized (from mouse)
Clinical data
ATC code
  • none
CAS Number
  • none
Chemical and physical data
Molar mass145.4 kg/mol g·mol−1
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Tanezumab (INN, codenamed RN624) is a monoclonal antibody against nerve growth factor as a treatment for pain. Tanezumab was discovered and developed by Rinat Neuroscience[1] and was acquired by Pfizer in 2006.

In 2009 there was a Phase III trial for knee pain due to osteoarthritis (OA).[2] Another Phase III trial for hip pain in OA [3] was halted in June 2010 when some patients needed hip replacement.[4]

Tanezumab is undergoing Phase II clinical trials for the treatment of various pain entities, including chronic low back pain, bone cancer pain, and interstitial cystitis.[5]

In March 2012, the Anti-NGF Testing - FDA Committee voted in favor of a continuation of the development of nerve-blocking medications, as long as certain safety precautions were observed.[6] [7]

A Phase III trial published in 2013 found tanezumab was superior to placebo for painful hip osteoarthritis.[8]

At February 19, 2019 the co-development partners - Eli Lilly and Pfizer - announced that treatment with tanezumab 10 mg met the primary endpoint, demonstrating a statistically significant improvement in pain at 16 weeks compared to placebo (however, 5 mg arm demonstrated a numerical improvement in pain, but did not reach statistical significance compared to placebo at the week 16 analysis). [9]

See also[edit]


  1. ^ "Anti-ngf antibodies and methods using same". 2005.
  2. ^ "Tanezumab in Osteoarthritis of the Knee". 2009
  3. ^ "Tanezumab in Osteoarthritis Of The Hip".
  4. ^ http://www.genengnews.com/gen-news-highlights/trials-halted-as-pfizer-s-tanezumab-shown-to-worsen-osteoarthritis/81243572/
  5. ^ "Phase II trials involving Tanezumab".
  6. ^ http://www.fda.gov/downloads/AdvisoryCommittees/CommitteesMeetingMaterials/Drugs/ArthritisAdvisoryCommittee/UCM295205.pdf
  7. ^ http://www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials/drugs/arthritisadvisorycommittee/ucm301305.pdf
  8. ^ "Tanezumab reduces osteoarthritic hip pain: results of a randomized, double-blind, placebo-controlled phase III trial". Arthritis Rheum. 65: 1795–803. Jul 2013. doi:10.1002/art.37950. PMID 23553790.
  9. ^ https://seekingalpha.com/pr/17415547-pfizer-lilly-announce-top-line-results-phase-3-study-tanezumab-chronic-low-back-pain

External links[edit]