Drugs / Fasinumab
last change Oct 2025 re-read 9 days ago

Fasinumab

also known as REGN475 · SAR164877

Monoclonal antibody targets NGF via inhibition

Developed for
osteoarthritis, knee · osteoarthritis, hip · osteoarthritis · chronic pain syndrome · sciatica
Investigated by
Regeneron Pharmaceuticals · Teva Pharmaceutical Industries, Ltd. · Sanofi

Trials 15

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 12 trials
Phase 1 NCT03491904 Jan 2019 → Jan 2020 osteoarthritis, hip, osteoarthritis, knee Regeneron Pharmaceuticals Completed No outcome recorded
Phase 1 NCT02516618 Jul 2015 → Feb 2016 — Regeneron Pharmaceuticals Completed No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT00944892 Aug 2009 → May 2010 osteoarthritis, knee Regeneron Pharmaceuticals Completed No outcome recorded
Phase 26 trials · 1 missed
Phase 2 NCT03949673 Apr 2019 → Aug 2020 osteoarthritis, hip, osteoarthritis, knee Regeneron Pharmaceuticals Terminated No outcome recorded Stop: Enrollment
Phase 2 NCT03691974 Oct 2018 → Jan 2020 osteoarthritis, hip, osteoarthritis, knee Regeneron Pharmaceuticals Completed Missed primary
Phase 2 NCT01001923 Dec 2009 → Jan 2011 — Regeneron Pharmaceuticals Terminated No outcome recorded Stop: Enrollment
Phase 2 NCT01001715 Nov 2009 → Jan 2011 — Regeneron Pharmaceuticals Terminated No outcome recorded Stop: Enrollment
Phase 2 NCT00991172 Nov 2009 → May 2010 sciatica Regeneron Pharmaceuticals Completed No outcome recorded
Phase 2 NCT01239017 — osteoarthritis Regeneron Pharmaceuticals Withdrawn No outcome recorded
Phase 2/32 trials · 1 met primary
Phase 2/3 NCT02620020 Jan 2016 → Feb 2017 — Regeneron Pharmaceuticals Completed Met primary
Phase 2/3 NCT02447276 May 2015 → Mar 2016 osteoarthritis, hip, osteoarthritis, knee Regeneron Pharmaceuticals Completed No outcome recorded
Phase 34 trials · 2 met primary
Phase 3 NCT03285646 Oct 2017 → May 2018 chronic pain syndrome, osteoarthritis Regeneron Pharmaceuticals Terminated No outcome recorded Stop: Enrollment
Phase 3 NCT03304379 Oct 2017 → Dec 2019 osteoarthritis, hip, osteoarthritis, knee Regeneron Pharmaceuticals Completed Met primary
Phase 3 NCT03161093 Aug 2017 → Sep 2019 osteoarthritis, hip, osteoarthritis, knee Regeneron Pharmaceuticals Completed Mixed
Phase 3 NCT02683239 Feb 2016 → Dec 2020 osteoarthritis Regeneron Pharmaceuticals Completed Met primary
Comparator or background therapy1 trial
Phase 1 NCT00856310 Comparator Feb → Nov 2009 — Regeneron Pharmaceuticals Completed No outcome recorded

News releases announcing trial results or a regulatory action · 4

DateIssuerRelease
2020-08-05 Teva Branded Pharmaceutical Products R&D, Inc. Results Teva Reports Second Quarter 2020 Financial Results tevapharm.com ↗
Results for two phase 3 clinical trials, FACT OA1 and FACT OA2, were released on August 5, 2020, indicating that the co-primary endpoints for fasinumab were achieved.
2018-08-16 Teva Branded Pharmaceutical Products R&D, Inc. Results Teva and Regeneron Announce Positive Topline Phase 3 Fasinumab Results in Patients with Chronic Pain from Osteoarthritis of the Knee or Hip tevapharm.com ↗
At the week 16 primary efficacy analysis, the study met both co-primary endpoints and all key secondary endpoints.
2018-08-16 Regeneron Pharmaceuticals Results Regeneron and Teva Announce Positive Topline Phase 3 Fasinumab Results in Patients with Chronic Pain from Osteoarthritis of the Knee or Hip regeneron.com ↗
Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) and Teva Pharmaceutical Industries Ltd. (NYSE and TASE: TEVA) today announced positive topline results from a Phase 3, randomized, double-blind, placebo-controlled study of fasinumab in patients with chronic pain from osteoarthritis (OA) of the knee or hip.
2016-10-17 Teva Branded Pharmaceutical Products R&D, Inc. Regulatory Regeneron and Teva Provide Update on Fasinumab Clinical Development Programs tevapharm.com ↗
As a result of the FDA decision, Regeneron completed an unplanned interim review of results and has stopped dosing in the study.

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 19 sources stand behind the page.

FieldValueCited text
Known as Fasinumab ClinicalTrials.gov intervention name — accepted as the source's own label NCT03949673 ↗
8

NCT03491904 ↗

NCT03285646 ↗

NCT03161093 ↗

NCT02620020 ↗

NCT02683239 ↗

NCT03304379 ↗

NCT03691974 ↗

NCT02516618 ↗

Known as REGN475 “Randomized, Double-blind, Placebo-controlled Study of the Effect of a Single Injection of SAR164877 (REGN475) on Reduction of Pain From Vertebral Fracture Associated With Osteoporosis” NCT01001715 ↗
6

NCT00944892 ↗

NCT01239017 ↗

NCT01001923 ↗

NCT00856310 ↗

NCT02447276 ↗

NCT00991172 ↗

Known as SAR164877 “Randomized, Double-blind, Placebo-controlled Study of the Effect of a Single Injection of SAR164877 (REGN475) on Reduction of Pain From Chronic Pancreatitis” NCT01001923 ↗
3

“A Study of the Safety and Efficacy of REGN475(SAR164877) in Patients With Osteoarthritis of the Knee” NCT00944892 ↗

“REGN475 (SAR164877)” NCT00856310 ↗

NCT01001715 ↗

Action Inhibit “Nerve growth factor inhibitors (eg, fasinumab) can reduce pain” PMID 41323020 ↗ Oct 2025
1

“Beta-nerve growth factor inhibitor” CHEMBL2109528 ↗

Modality Monoclonal antibody “fasinumab, an anti-nerve growth factor monoclonal antibody” PMID 31207169 ↗ Sep 2019
Route Intravenous “intravenously administered REGN475” NCT00856310 ↗
Target NGF “Beta-nerve growth factor inhibitor” CHEMBL2109528 ↗