Abstract
Background
Tanezumab, a humanized anti-nerve growth factor antibody, was developed for the treatment of pain associated with osteoarthritis. Due to its mechanism of action, peripheral nerve safety was assessed in all clinical studies.
Objectives
To summarize the neurological safety of intravenous (IV) and subcutaneous (SC) tanezumab versus placebo in patients with osteoarthritis.
Methods
Data were pooled from 3389 patients across seven studies that investigated IV administration, and from 1840 patients across three studies that investigated SC administration. The treatment period of each study ranged from 16 to 24 weeks, and follow-up periods ranged from 8 to 24 weeks. Neurological safety evaluations focused on adverse events (AEs) of abnormal peripheral sensation (APS), neurologic examinations, and consultations.
Results
Across datasets, the incidence of AEs of APS was higher in tanezumab groups versus placebo. Paresthesia and hypoesthesia were the most frequently reported AEs in tanezumab-treated patients, compared with placebo. In both datasets, most AEs were of mild severity, resolved, and rarely resulted in discontinuation. In all treatment groups in both IV and SC studies, over 90% of patients had no new or worsened neurological examination abnormalities at the last study visit. Across datasets, mononeuropathy was diagnosed more frequently in tanezumab groups compared with placebo. Polyneuropathy was diagnosed in ≤ 0.9% of patients in tanezumab and placebo groups.
Conclusions
Tanezumab IV or SC had an increased incidence of AEs of APS, such as paresthesia and hypoesthesia, and diagnoses of mononeuropathy compared with placebo. However, tanezumab was not associated with generalized peripheral neuropathy.
ClinicalTrials.gov identifiers
NCT00733902, NCT00744471, NCT00830063, NCT00863304, NCT00863772, NCT01089725, NCT00985621, NCT02697773, and NCT02709486.
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Acknowledgements
Medical writing support was provided by Steven Moore, Ph.D., of Engage Scientific Solutions and was funded by Pfizer and Eli Lilly and Company.
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This work was funded by Pfizer and Eli Lilly and Company. Pfizer and Eli Lilly and Company contributed to the study design; Pfizer contributed to the management and collection of data. In their role as authors, employees of Pfizer and Eli Lilly were involved in the interpretation of data, preparation, review, and approval of the manuscript and the decision to submit for publication, along with their co-authors. The study sponsors approved the manuscript from an intellectual property perspective but had no right to veto the publication.
Conflict of Interest
DRC has served as a consultant for AlgoTX, Amgen Inc., Annexon Biosciences, Boehringer Ingelheim, Cigna Health Management Inc., CSL Behring, Grifols S.A., Johnson & Johnson, Nervosave, Nurobio, Octapharma AG, Passage Bio, Pfizer Inc., Pharnext SAS, Roche, Seattle Genetics Inc., and ValenzaBio. He sits on the Data Safety Monitoring Board for Anavex Life Sciences Corp, Passage Bio, PledPharma AB, Hansa Medical AB, and Mitsubishi Tanabe Pharma Corporation. Through Johns Hopkins University, he receives royalties for technology licensing from AstraZeneca Pharmaceuticals, LP, Genentech Inc., Levicept Inc., Seattle Genetics Inc., and Merrimack Pharmaceuticals. He sits on the Scientific Advisory Board for AlgoTx and Sinomab. MK is director of Neurophysiology Consulting Ltd and QTMS Science Ltd. During the past 5 years he has been an ad hoc consultant and the speaker bureau for Eli Lilly, GSK, Levicept, Marks & Clerk Law, Merck, Neursentis, Pfizer, Richmond Pharmaceuticals Ltd., and Roche. KG has served as a consultant for Argenx, Annexon, Janssen, Pfizer, and UCB Pharma. MTB, AH, GCP, PG, and CRW own stock in and are full-time employees of Pfizer. LV owns stocks in and is a full-time employee of Eli Lilly and Company.
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Upon request, and subject to review, Pfizer will provide the data that support the findings of this study. Subject to certain criteria, conditions, and exceptions, Pfizer may also provide access to the related individual de-identified participant data. See https://www.pfizer.com/science/clinical-trials/trial-data-and-results for more information.
Ethics Approval
The protocol for each clinical trial was approved by an institutional review board or independent ethics committee at each participating investigational center. The studies were conducted in compliance with the ethical principles of the Declaration of Helsinki and Good Clinical Practice Guidelines.
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All patients provided written informed consent before entering the studies.
Author Contributions
Mark Brown: Conceptualization, data curation, investigation, methodology, supervision, visualization, and writing (review and editing). David Cornblath: Investigation, supervision, and writing (review and editing). Martin Koltzenburg: Investigation, supervision, and writing (review and editing). Kenneth Gorson: Investigation, supervision, and writing (review and editing). Anne Hickman: Conceptualization, data curation, investigation, methodology, supervision, visualization, and writing (review and editing). Glenn C. Pixton: Conceptualization, data curation, formal analysis, investigation, methodology, supervision, visualization, and writing (review and editing). Puneet Gaitonde: Data curation, investigation, methodology, supervision, visualization, and writing (review and editing). Lars Viktrup: Conceptualization, methodology, supervision, visualization, and writing (review and editing). Christine West: Conceptualization, data curation, investigation, methodology, supervision, visualization, and writing (review and editing).
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Brown, M.T., Cornblath, D.R., Koltzenburg, M. et al. Peripheral Nerve Safety of Nerve Growth Factor Inhibition by Tanezumab: Pooled Analyses of Phase III Clinical Studies in Over 5000 Patients with Osteoarthritis. Clin Drug Investig 43, 551–563 (2023). https://doi.org/10.1007/s40261-023-01286-3
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DOI: https://doi.org/10.1007/s40261-023-01286-3