The purpose of this study is to demonstrate the efficacy, safety, and tolerability of fulranumab as adjunctive therapy compared with placebo in participants with chronic moderate to severe pain and functional impairment from knee or hip osteoarthritis that is not adequately controlled by current pain therapy.
This is a randomized (the study drug is assigned by chance), double-blind (neither physician nor participant knows the name of the assigned drug), placebo-controlled (an inactive substance is given to one group of participants while active drug is given to another group of participants to see if there is a difference in response), parallel-group (study drugs given to participants in all treatment groups during the same time period) to evaluate the efficacy (capacity of the investigational drug to produce an effect), safety, and tolerability of fulranumab administered as adjunctive therapy (in combination with other drug therapy) to participants with chronic moderate to severe pain and functional impairment from knee or hip osteoarthritis (OA) that is not adequately controlled by current pain therapy. The duration of participation in the study for an individual participant will be up to 67 weeks (includes a screening period of 3 weeks, a double-blind treatment period of 16 weeks, and a post-treatment follow-up period of up to 48 weeks). All participants will be randomly assigned in a 1:1:1 ratio to 1 of 3 treatments (placebo, fulranumab 1mg, fulranumab 3mg) and given a single injection subcutaneously (under the skin) once every 4 weeks for up to 16 weeks. All participants will be allowed standard of care for OA pain during the double-blind treatment phase and must be taking an opioid at study entry and during the double-blind treatment phase. Blood samples will be collected from each participant at time points during the study. Safety evaluations will include assessment of adverse events, physical examinations, laboratory tests and vital signs which will be monitored throughout the study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
79
Placebo will be administered once every 4 weeks for 16 weeks by subcutaneous (SC) injection (injection under the skin) into the thigh or abdomen.
Fulranumab will be administered once every 4 weeks for up to 16 weeks by SC injection into the thigh or abdomen.
Fulranumab will be administered once every 4 weeks for up to 16 weeks by SC injection into the thigh or abdomen.
Change from baseline to the end of Week 16 in Western Ontario and McMaster University Arthritis Index (WOMAC) pain subscale score
The WOMAC 3.1 is a multi-dimensional, osteoarthritis (OA) specific self-administered questionnaire using 24 questions with a 48-hour recall that are grouped into 3 subscales (pain, stiffness, and physical function) associated with hip or knee OA. Pain, stiffness, and physical function is rated on a scale of 0-10 (0 = less severe up to 10 = more severe).
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in Western Ontario and McMaster University Arthritis Index (WOMAC) physical function subscale score
See WOMAC 3.1 described above.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in Patient Global Assessment (PGA) score
The PGA is part of a comprehensive assessment of the impact of treatment for osteoarthritis that also includes pain and physical function. The PGA included in the present study indicates the perception of osteoarthritis in the study joint at the current time. Ratings are provided on an 11-point numerical rating scale from 0 ("Very Good") to 10 ("Very Bad").
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in Patient Global Assessment (PGA) score
See PGA described above.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in WOMAC Stiffness subscale score
See WOMAC 3.1 described above.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in daily numerical rating scale (NRS) score
The numerical rating scale (NRS) uses an 11-point scale to assess OA pain ranging from 0 to 10 with high scores representing greater symptom severity (0=no pain and 10=pain as bad as you can imagine).
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Opioids will be administered as standard of care for osteoarthritis (OA) pain therapy during the double-blind treatment phase as per investigator discretion.
Unnamed facility
Birmingham, Alabama, United States
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Huntsville, Alabama, United States
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Cerritos, California, United States
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Denver, Colorado, United States
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Stamford, Connecticut, United States
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Lewes, Delaware, United States
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Newark, Delaware, United States
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Crystal River, Florida, United States
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Fort Lauderdale, Florida, United States
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Hialeah, Florida, United States
...and 43 more locations
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in Medical Outcomes Study (MOS) Sleep subscale scores
The MOS Sleep Scale (acute version) contains 12 items that address aspects of sleep. Six subscale scores may be calculated including: daytime somnolence, sleep disturbances, snoring, shortness of breath or headache upon awaking, adequacy of sleep and amount of sleep plus a summary index of sleep disturbances. A higher score indicates worse sleep in most domains, but the amount of sleep and adequacy of sleep are scored in the opposite direction. The primary subscale of interest in this study is daytime somnolence.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in Short-Form-36 (SF-36) subscale scores
The SF-36 is a self-administered, generic, 36-item questionnaire designed to cover 8 domains of functional health status and well-being, physical functioning, role limitations due to physical health problems, bodily pain, general health perceptions, vitality, social functioning, role limitations due to emotional problems, and mental health. Scoring yields 8 subscales based on the 8 domains covered in the questionnaire. These scales are scored from 0 to 100 with higher scores indicating better health.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in EuroQol, 5 dimensions, 5 levels (EQ-5D-5L) scale score
The EQ-5D is a self-administered, standardized measure of health status designed to provide a generic measure of health for clinical and economic appraisal that includes the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. The EQ-5D 5 level (5L) version will be used in this study. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and unable or extreme problems. A unique health state is defined by combining 1 level from each of the 5 dimensions.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in the percentage of participants who are responders based on WOMAC pain and physical function subscale scores and PGA scale scores
Responders are defined as participants with percent improvement equal to and above the threshold values for WOMAC pain and physical function subscale scores and PGA scale scores, reported separately.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in the percentage of participants who are responders based on OMERACT-OARSI, MCII, and PASS scale scores
Responders are defined as participants with percent improvement equal to and above the threshold values for Outcome Measures in Rheumatology initiative/Osteoarthritis Research Society International (OMERACT-OARSI), Minimal Clinically Important Improvement (MCII), and the Patient Acceptable Symptom State (PASS) scale scores.
Time frame: Baseline, Week 16
Change from baseline to the end of Week 16 in the percentage of participants who use rescue medication and other osteoarthritis (OA) analgesia
Use of rescue medication (acetaminophen/paracetamol) and other OA pain medication will be recorded weekly during the study.
Time frame: Baseline, Week 16