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Phase 3 N=5,331 Randomized Quadruple-blind Treatment

Long-Term Safety and Efficacy Study of Fasinumab in Patients With Pain Due to Osteoarthritis (OA) of the Knee or Hip

Osteoarthritis of the Knee or Hip

Enrolled (actual)
5,331
Serious AEs
20.0%
Results posted
Oct 2023
Primary outcome: Primary: Number of Participants With Any Treatment-Emergent Adverse Event (TEAE) — 1055; 840; 885; 185 Participants

Study Design & Population

Study type
Interventional
Phase
Phase 3
Interventions
Fasinumab (Drug); Placebo (Drug)
Age
Adult, Older Adult · 18+ yrs
Sex
All
Sponsor
Regeneron Pharmaceuticals
Primary completion
Dec 2020

Outcome Measures

OutcomeResultp-value
PRIMARY
Number of Participants With Any Treatment-Emergent Adverse Event (TEAE)
1055; 840; 885; 185; 1487; 93
PRIMARY
Number of Participants With Any Serious TEAE
82; 57; 70; 13; 107; 5
PRIMARY
Number of Participants With Any Adverse Event (AE) up to Week 72
1112; 867; 902; 192; 1570; 106
PRIMARY
Number of Participants With Any Serious AE up to Week 72
173; 138; 176; 44; 413; 28
PRIMARY
Number of Participants With Adjudicated Arthropathy (AA)
23; 52; 62; 25; 238; 14
PRIMARY
Number of Participants With Adjudicated Arthropathy (AA) Meeting Destructive Arthropathy (DA) Criteria
0; 1; 3; 1; 20; 1
PRIMARY
Number of Participants With at Least One Peripheral Sensory Event That Required a Neurology Consultation
29; 65; 62; 21; 75; 3
PRIMARY
Number of Participants With Sympathetic Nervous System (SNS) Dysfunction
0; 0; 0; 0; 1; 0
PRIMARY
Number of Participants With at Least One All-Cause Joint Replacement (JR) Surgery
37; 27; 37; 15; 109; 8
PRIMARY
Number of Participants With Potentially Clinically Significant Abnormal Laboratory Values up to Week 52
195; 236; 241; 28; 304; 7
PRIMARY
Number of Participants With Potentially Clinically Significant Abnormal Laboratory Values Post-Treatment up to Week 72
171; 149; 154; 23; 279; 29
PRIMARY
Number of Participants With Anti-drug Antibody (ADA) up to Week 72
1115; 885; 907; 200; 1547; 108
PRIMARY
Change From Baseline to Week 16 in the Western Ontario and McMaster Universities Osteoarthritis (WOMAC) Pain Subscale Score
-1.55; -2.28; -2.77; -2.78; -2.59 = 0.0010 sig
PRIMARY
Change From Baseline to Week 16 in WOMAC Physical Function Subscale Score
-1.35; -2.09; -2.55; -2.61; -2.48 = 0.0007 sig
SECONDARY
Change From Baseline to Week 16 in Patient Global Assessment (PGA) Score of Osteoarthritis
-0.66; -0.87; -0.93; -0.99; -0.96 = 0.0230 sig
SECONDARY
Number of Participants With ≥30% Reduction From Baseline to Week 16 in the WOMAC Pain Subscale Score
76; 108; 126; 118; 114

Summary

The primary objective of the study is to describe the safety and tolerability of fasinumab, including adverse events of special interest (AESIs), in patients with pain due to radiographically-confirmed OA of the knee or hip.

Eligibility Criteria

Key Inclusion Criteria

  • Male or female ≥18 years of age at the screening visit
  • Clinical diagnosis of OA of the knee or hip based on the American College of Rheumatology criteria with radiologic evidence of OA (K-L score ≥2) for the index joint at the screening visit
  • Moderate to severe pain in the index joint defined as a Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) average pain subscale score of ≥4
  • A history of 12 weeks of analgesic use for OA of the knee or hip
  • History of regular use of analgesic medications for OA pain

Key Exclusion Criteria

  • History or presence at the screening visit of non OA inflammatory joint disease
  • History or presence on imaging of arthropathy, stress fracture, recent stress fracture, neuropathic joint arthropathy, hip dislocation, knee dislocation, congenital hip dysplasia with degenerative joint disease, extensive subchondral cysts, evidence of bone fragmentation or collapse, or primary metastatic tumor with the exception of chondromas or pathologic fracture during the screening period
  • Signs or symptoms of carpal tunnel syndrome within 6 months of screening
  • Patient is not a candidate for MRI
  • Is scheduled for a joint replacement surgery to be performed during the study period
  • Systemic (i.e., oral or intramuscular) corticosteroids within 30 days prior to the screening visit.
  • History or presence at the screening visit of multiple sclerosis, autonomic neuropathy, diabetic neuropathy, or other peripheral neuropathy, including reflex sympathetic dystrophy
  • History or diagnosis of chronic autonomic failure syndrome including pure autonomic failure, multiple system atrophy
  • Pregnant or breast-feeding women
  • Women of childbearing potential who have a positive pregnancy test result or do not have their pregnancy test result at baseline

Note: Other protocol defined Inclusion/Exclusion criteria apply

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT02683239). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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