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A Study to Investigate the Safety and Effectiveness of Different Doses of Sprifermin in Participants With Osteoarthritis of the Knee

A Multicenter, Randomized, Double-blind, Placebo Controlled, Parallel-group Trial to Investigate the Efficacy and Safety of Different Intra Articular (i.a.) Dosages of Sprifermin in Subjects With Primary Osteoarthritis of the Knee

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01919164
Acronym
FORWARD
Enrollment
549
Registered
2013-08-08
Start date
2013-07-29
Completion date
2019-05-07
Last updated
2020-07-13

For informational purposes only โ€” not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis, Knee

Keywords

Osteoarthritis of knee, Recombinant Human Fibroblast Growth Factor-18 (rhFGF-18), Sprifermin, Placebo

Brief summary

This was a multicenter, randomized, double-blind, placebo-controlled, parallel-group Phase 2 trial of Sprifermin administered intra-articularly in participants with primary osteoarthritis of the knee and Kellgren-Lawrence Grade 2 or 3. The trial was intended to investigate the efficacy and safety of different intra articular dosages of Sprifermin in these individuals.

Detailed description

Participants were equally randomized to either one of 4 treatment arms or a placebo arm. The trial consists of a Screening period lasting up to 42 days, a two-year double-blind placebo-controlled (DBPC) treatment phase, which begins at randomization (Week 0) and ends at Year 2, and a 3-year extended follow-up phase.

Interventions

DRUGSprifermin

Participants received Sprifermin as intra-articular injection.

DRUGPlacebo

Participants received Placebo matched to sprifermin as intra-articular injection.

Sponsors

Nordic Bioscience A/S
CollaboratorINDUSTRY
EMD Serono Research & Development Institute, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
40 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Age from 40 to 85 years; of either sex * Primary femorotibial osteoarthritis according to American College of Rheumatology (ACR) clinical and radiographic criteria , and meeting protocol-specified X-ray criteria in the target knee at screening * Pain score in the target knee and/or the need for regular symptomatic treatment of knee pain with paracetamol (acetaminophen), systemic non-steroidal anti-inflammatory drugs (NSAIDs) including cyclooxygenase (COX)-2 selective inhibitors (coxibs), or tramadol on most days in the previous month (that is, more than half of the days in the previous month) * A history of pain due to Osteoarthritis in the target knee for at least 6 months * A protocol-specified pain score for the target knee in response to Question 1 of the WOMAC pain index (how much pain have you had \[in the target knee, over the past 48 hours\] when walking on a flat surface?) after washout of at least 5 half-lives of analgesic medication(s): acetaminophen, topical or oral NSAIDS, coxibs, opioids, and/or tramadol * Women of childbearing potential must use a form of contraception with a failure rate of less than 1 percent per year throughout the trial

Exclusion criteria

* Malalignment of greater than 5 degrees in the femorotibial axis of the target knee * Clinical signs of inflammation (redness) in the target knee * Intra-articular administration of corticosteroids or hyaluronic acid into either knee within 6 months before Screening * Planned knee surgery (affecting either the target or the contralateral knee) within the next two years * Concomitant conditions or treatments deemed to be incompatible with trial participation * Any contraindication to MRI according to MRI guidelines, including the inability to undergo a knee MRI exam because of inability to fit in the scanner or knee coil * Pregnancy or breastfeeding * Participation in another clinical trial within the 30 days (or 5 half-lives of the investigated compound, whichever is longer) before screening * Legal incapacity or limited legal capacity

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 2Baseline, Year 2 (Week 104)The change in cartilage thickness at 2 years was calculated based on quantitative magnetic resonance imaging (qMRI).

Secondary

MeasureTime frameDescription
Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Baseline, Week 12, 26, 38, 52, 64, 78, 90 and 104The 20-meter walk test is an objective test of physical function which consists of measuring the time needed for the participant to walk 20 meters at a normal pace. A stopwatch was used for time measurement.
Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Baseline, Week 12, 26, 38, 52, 64, 78, 90 and 104The Patient Global Assessment is based on participant's answer to the question Considering all the ways your osteoarthritis of the knee has affected you during the last 48 Hours, select the number that best describes the impact of your knee osteoarthritis on your daily life, and can take on values between 0-10 (0=None, 10=Extreme), for summaries the values are rescaled to 0-100 by multiplication with 10. Higher scores indicated worsening of condition. A negative value in change in Patient's Global Assessment is indicative of an improvement.
Change From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Baseline, Week 52 and 104Change in joint space narrowing was visualized with the fixed flexion knee radiograph. Determination of joint space narrowing by X-ray is considered to be a semi-quantitative method for assessment of progression of knee Osteoarthritis (OA). X-rays of both the target knee and the contralateral knee were performed. X-rays were read centrally. X-ray images were used to measure mJSW in the medial femorotibial and lateral femorotibial compartments and to determine the participant's baseline Kellgren-Lawrence grades (KLG).
Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Baseline, Week 52, Week 78 and Week 104WOMAC pain subscale consists of 5 questions (Likert Scale) relating to pain. Sum of items of pain subscale ranges from 0-11. Higher scores=worse pain. Stiffness subscale consists of 2 questions relating articular function. Sum of items of stiffness subscale ranges from 0-8. Higher scores=worse function. Physical function subscale consists of 17 question relating to physical activities. Sum of items of physical function subscale ranges from 0-68. Higher scores= worse functional limitations. Each sub-scale is directly transformed into a 0-100 scale, where higher score indicates worse condition. WOMAC total score(24questions) is sum of total subscales which was directly transformed into score range from 0-100. Higher scores=worse condition. Negative value in change is indicative of improvement.
Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Baseline, Week 26, 52, 78 and 104The change in cartilage volume in the medial and lateral compartments as well as in the total femorotibial joint at Week 26, 52, 78 and 104 was calculated based on qMRI.
Synovial Fluid Levels of Sprifermin/FGF-18Pre-dose at Week 0, 2 hours post-dose at Week 1 and 2 of Cycle 1, 2, 3 and 4 (each cycle is of 28 days)Levels of sprifermin/FGF-18 in synovial fluid were measured to provide a first estimate of the residence time of sprifermin in the synovial fluid.
Serum Levels of Sprifermin/FGF-18Pre-dose at Week 0, 2 hours post-dose at Week 1 and 2 of Cycle 1, 2, 3 and 4 (each cycle is of 28 days)โ€”
Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial and Lateral: Baseline, Week 26, 52, 78 and 104; Total: Baseline, Week 26, 52 and 78The change in cartilage thickness was calculated based on quantitative magnetic resonance imaging (qMRI).

Countries

Argentina, Czechia, Denmark, Estonia, Hong Kong, Poland, Romania, United States

Participant flow

Pre-assignment details

A total of 549 participants were randomized in this study.

Participants by arm

ArmCount
Placebo
Participants received Placebo matched to Sprifermin as intra-articular injection once every week for 3 consecutive weeks for 4 cycles, that is at week 0, 1, 2 in Cycle 1; at week 26, 27, 28 in Cycle 2; at week 52, 53, 54 in Cycle 3 and at week 78, 79, 80 in Cycle 4 at interval of 6 months.
108
Sprifermin (AS902330) 30 mcg/Placebo - 2 Cycles
Participants received Sprifermin 30 micrograms (mcg) as intra-articular injection once every week for 3 consecutive weeks for 2 alternative cycles, that is at week 0, 1, 2 in Cycle 1 and at week 52, 53, 54 in Cycle 3; and received placebo matched to Sprifermin once every week for 3 consecutive weeks for 2 alternative cycles, that is at week 26, 27, 28 in Cycle 2 and at week 78, 79, 80 in Cycle 4 at interval of 6 months.
110
Sprifermin (AS902330) 30 mcg- 4 Cycles
Participants received Sprifermin 30 micrograms (mcg) as intra-articular injection once every week for 3 consecutive weeks for 4 cycles, that is at week 0, 1, 2 in Cycle 1; at week 26, 27, 28 in Cycle 2; at week 52, 53, 54 in Cycle 3 and at week 78, 79, 80 in Cycle 4 at interval of 6 months.
111
Sprifermin (AS902330) 100 mcg/Placebo- 2 Cycles
Participants received Sprifermin 100 mcg as intra-articular injection once every week for 3 consecutive weeks for 2 alternative cycles, that is at week 0, 1, 2 in Cycle 1 and at week 52, 53, 54 in Cycle 3; and received placebo matched to Sprifermin once every week for 3 consecutive weeks for 2 alternative cycles, that is at week 26, 27, 28 in Cycle 2 and at week 78, 79, 80 in Cycle 4 at interval of 6 months.
110
Sprifermin (AS902330) 100 mcg- 4 Cycles
Participants received Sprifermin 100 mcg as intra-articular injection once every week for 3 consecutive weeks for 4 cycles, that is at week 0, 1, 2 in Cycle 1; at week 26, 27, 28 in Cycle 2; at week 52, 53, 54 in Cycle 3 and at week 78, 79, 80 in Cycle 4 at interval of 6 months.
110
Total549

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyAdverse Event64932
Overall StudyDeath10000
Overall StudyDisease progression22121
Overall StudyLost to Follow-up22204
Overall StudyOther Un-specified1398715
Overall StudyProtocol Violation60322
Overall StudyWithdrew consent131314149

Baseline characteristics

CharacteristicTotalPlaceboSprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSprifermin (AS902330) 30 mcg- 4 CyclesSprifermin (AS902330) 100 mcg/Placebo- 2 CyclesSprifermin (AS902330) 100 mcg- 4 Cycles
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
299 Participants54 Participants64 Participants59 Participants58 Participants64 Participants
Age, Categorical
Between 18 and 65 years
250 Participants54 Participants46 Participants52 Participants52 Participants46 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants1 Participants1 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
547 Participants107 Participants109 Participants111 Participants110 Participants110 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
110 Participants21 Participants22 Participants23 Participants23 Participants21 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
439 Participants87 Participants88 Participants88 Participants87 Participants89 Participants
Sex: Female, Male
Female
379 Participants76 Participants73 Participants80 Participants77 Participants73 Participants
Sex: Female, Male
Male
170 Participants32 Participants37 Participants31 Participants33 Participants37 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
1 / 1070 / 1090 / 1110 / 1110 / 109
other
Total, other adverse events
105 / 107106 / 109109 / 111106 / 111107 / 109
serious
Total, serious adverse events
39 / 10735 / 10934 / 11132 / 11141 / 109

Outcome results

Primary

Change From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 2

The change in cartilage thickness at 2 years was calculated based on quantitative magnetic resonance imaging (qMRI).

Time frame: Baseline, Year 2 (Week 104)

Population: Modified intent to treat (ITT) analysis set included all randomized participants that is, only planned treatment regimen was used and who had a baseline, at least 1 post-treatment qMRI assessment available in double-blind placebo-controlled part. Here Number of Participants analyzed = participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
PlaceboChange From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 2-0.02 millimetersStandard Deviation 0.07
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 2-0.01 millimetersStandard Deviation 0.07
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 20.00 millimetersStandard Deviation 0.07
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 20.02 millimetersStandard Deviation 0.08
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Total Femorotibial Joint as Evaluated by Quantitative Magnetic Resonance Imaging (qMRI) at Year 20.03 millimetersStandard Deviation 0.07
Comparison: Descriptive statistics was provided for primary endpoint.95% CI: [-0.01, 0.03]
Comparison: Descriptive statistics was provided for primary endpoint.95% CI: [-0.01, 0.04]
Comparison: Descriptive statistics was provided for primary endpoint.95% CI: [0.02, 0.06]
Comparison: Descriptive statistics was provided for primary endpoint.95% CI: [0.03, 0.07]
Secondary

Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint

The change in cartilage thickness was calculated based on quantitative magnetic resonance imaging (qMRI).

Time frame: Medial and Lateral: Baseline, Week 26, 52, 78 and 104; Total: Baseline, Week 26, 52 and 78

Population: Modified ITT analysis set was used. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed included those who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 52-0.01 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 780.00 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 260.00 millimeterStandard Deviation 0.06
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 26-0.01 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 104-0.03 millimeterStandard Deviation 0.12
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 52-0.01 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 78-0.01 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 78-0.01 millimeterStandard Deviation 0.07
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 104-0.01 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 26-0.01 millimeterStandard Deviation 0.05
PlaceboChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 52-0.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 260.00 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 780.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 52-0.01 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 52-0.01 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 260.00 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 52-0.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 78-0.01 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 780.00 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 260.00 millimeterStandard Deviation 0.04
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 104-0.02 millimeterStandard Deviation 0.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 104-0.01 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 520.00 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 26-0.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 52-0.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 780.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 104-0.01 millimeterStandard Deviation 0.08
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 260.00 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 780.01 millimeterStandard Deviation 0.08
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 1040.00 millimeterStandard Deviation 0.09
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 260.00 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 520.00 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 780.06 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 1040.00 millimeterStandard Deviation 0.11
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 260.01 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 520.00 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 780.02 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 520.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 780.01 millimeterStandard Deviation 0.1
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 520.02 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 1040.04 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 260.01 millimeterStandard Deviation 0.04
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 260.02 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 780.03 millimeterStandard Deviation 0.07
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 260.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 780.03 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 1040.02 millimeterStandard Deviation 0.08
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 1040.04 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 780.03 millimeterStandard Deviation 0.08
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 780.03 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 260.01 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointMedial: Change at Week 520.01 millimeterStandard Deviation 0.06
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointTotal: Change at Week 520.01 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 520.02 millimeterStandard Deviation 0.05
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage Thickness in the Medial and Lateral Compartments as Well as in the Total Femorotibial JointLateral: Change at Week 260.02 millimeterStandard Deviation 0.05
Secondary

Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104

The change in cartilage volume in the medial and lateral compartments as well as in the total femorotibial joint at Week 26, 52, 78 and 104 was calculated based on qMRI.

Time frame: Baseline, Week 26, 52, 78 and 104

Population: Modified ITT analysis set was used. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed included those who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 78-1.8 microliterStandard Deviation 89.7
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 260.0 microliterStandard Deviation 112.2
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 104-14.5 microliterStandard Deviation 87.2
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 52-23.7 microliterStandard Deviation 155.7
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 104-41.0 microliterStandard Deviation 192.1
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 52-10.2 microliterStandard Deviation 100.7
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 52-12.7 microliterStandard Deviation 94
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 78-10.3 microliterStandard Deviation 176.8
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 26-13.0 microliterStandard Deviation 163.2
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 26-12.8 microliterStandard Deviation 84.4
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 78-8.9 microliterStandard Deviation 125.3
PlaceboChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 104-55.5 microliterStandard Deviation 239.5
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 78-7.0 microliterStandard Deviation 153.7
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 52-17.5 microliterStandard Deviation 141.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 7813.9 microliterStandard Deviation 113.6
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 52-2.9 microliterStandard Deviation 127.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 261.7 microliterStandard Deviation 110.8
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 786.9 microliterStandard Deviation 228.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 104-6.8 microliterStandard Deviation 144.9
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 52-20.4 microliterStandard Deviation 217.6
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 104-21.4 microliterStandard Deviation 198.3
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 104-28.2 microliterStandard Deviation 275.7
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 262.5 microliterStandard Deviation 147
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 260.8 microliterStandard Deviation 82
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 7844.8 microliterStandard Deviation 195.3
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 26-3.2 microliterStandard Deviation 99.5
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 52-7.0 microliterStandard Deviation 103.7
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 7823.6 microliterStandard Deviation 109.3
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 1043.6 microliterStandard Deviation 123.9
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 261.5 microliterStandard Deviation 102.3
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 522.7 microliterStandard Deviation 98.2
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 1047.2 microliterStandard Deviation 134.8
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 26-2.9 microliterStandard Deviation 161.8
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 52-5.5 microliterStandard Deviation 169
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 7821.6 microliterStandard Deviation 129
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 1049.5 microliterStandard Deviation 205.7
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 2631.3 microliterStandard Deviation 87.7
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 10475.5 microliterStandard Deviation 111.8
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 10419.5 microliterStandard Deviation 202.3
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 2616.7 microliterStandard Deviation 89.8
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 2648.4 microliterStandard Deviation 150.9
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 7833.2 microliterStandard Deviation 177
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 5236.2 microliterStandard Deviation 203.1
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 523.6 microliterStandard Deviation 127.5
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 10496.6 microliterStandard Deviation 271.1
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 7889.9 microliterStandard Deviation 272.6
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 5232.4 microliterStandard Deviation 107.5
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 7855.9 microliterStandard Deviation 123.1
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 78109.1 microliterStandard Deviation 219.1
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 2616.5 microliterStandard Deviation 114.2
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 5244.7 microliterStandard Deviation 163.2
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 10467.9 microliterStandard Deviation 112.5
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 10448.6 microliterStandard Deviation 150.7
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 5216.5 microliterStandard Deviation 110.6
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 5228.1 microliterStandard Deviation 87.3
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 7855.2 microliterStandard Deviation 101.6
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 2641.5 microliterStandard Deviation 166.6
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Medial: Change at Week 7853.9 microliterStandard Deviation 147.3
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Lateral: Change at Week 2625.1 microliterStandard Deviation 85.8
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Cartilage-Volume in the Medial and Lateral Compartments as Well as in the Total Femorotibial Joint at Week 26, 52, 78 and 104Total: Change at Week 104116.5 microliterStandard Deviation 233.5
Secondary

Change From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104

Change in joint space narrowing was visualized with the fixed flexion knee radiograph. Determination of joint space narrowing by X-ray is considered to be a semi-quantitative method for assessment of progression of knee Osteoarthritis (OA). X-rays of both the target knee and the contralateral knee were performed. X-rays were read centrally. X-ray images were used to measure mJSW in the medial femorotibial and lateral femorotibial compartments and to determine the participant's baseline Kellgren-Lawrence grades (KLG).

Time frame: Baseline, Week 52 and 104

Population: Intention-to-Treat (ITT) analysis set included all participants randomly allocated to a treatment, based on the intention to treat as randomized principle. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed included those who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 52-0.10 millimeterStandard Deviation 0.48
PlaceboChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 104-0.11 millimeterStandard Deviation 0.59
PlaceboChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 520.07 millimeterStandard Deviation 0.46
PlaceboChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 104-0.07 millimeterStandard Deviation 0.49
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 52-0.05 millimeterStandard Deviation 0.53
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 104-0.03 millimeterStandard Deviation 0.64
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 104-0.09 millimeterStandard Deviation 0.73
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 52-0.03 millimeterStandard Deviation 0.62
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 1040.01 millimeterStandard Deviation 0.65
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 1040.03 millimeterStandard Deviation 0.52
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 520.16 millimeterStandard Deviation 0.54
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 52-0.04 millimeterStandard Deviation 0.43
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 520.02 millimeterStandard Deviation 0.55
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 104-0.05 millimeterStandard Deviation 0.66
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 1040.19 millimeterStandard Deviation 0.49
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 520.10 millimeterStandard Deviation 0.37
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 1040.19 millimeterStandard Deviation 0.49
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Lateral: Change at Week 520.14 millimeterStandard Deviation 0.43
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 104-0.07 millimeterStandard Deviation 0.86
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in Minimal Joint Space Width (mJSW) in the Medial and Lateral Compartments as Evaluated by X-ray at Week 52 and 104Medial: Change at Week 52-0.04 millimeterStandard Deviation 0.57
Secondary

Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104

The 20-meter walk test is an objective test of physical function which consists of measuring the time needed for the participant to walk 20 meters at a normal pace. A stopwatch was used for time measurement.

Time frame: Baseline, Week 12, 26, 38, 52, 64, 78, 90 and 104

Population: Intention-to-Treat (ITT) analysis set included all participants randomly allocated to a treatment, based on the intention to treat as randomized principle. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed included those who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-2.1 secondsStandard Deviation 3.9
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-1.6 secondsStandard Deviation 4
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-1.3 secondsStandard Deviation 3.7
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-1.2 secondsStandard Deviation 2.9
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-1.1 secondsStandard Deviation 3.6
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-1.7 secondsStandard Deviation 4.2
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-1.8 secondsStandard Deviation 3.6
PlaceboChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-1.6 secondsStandard Deviation 3.7
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-0.4 secondsStandard Deviation 3.9
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-1.1 secondsStandard Deviation 3.6
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-1.0 secondsStandard Deviation 3.2
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-1.5 secondsStandard Deviation 4.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-0.5 secondsStandard Deviation 3.4
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-1.0 secondsStandard Deviation 4
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-1.2 secondsStandard Deviation 4.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-0.4 secondsStandard Deviation 4
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-0.5 secondsStandard Deviation 2.6
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-0.8 secondsStandard Deviation 2.8
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-0.7 secondsStandard Deviation 2.5
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-0.7 secondsStandard Deviation 2.5
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-0.3 secondsStandard Deviation 2.6
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-0.9 secondsStandard Deviation 2.5
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-1.1 secondsStandard Deviation 2.7
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-0.8 secondsStandard Deviation 3.4
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-1.3 secondsStandard Deviation 2.6
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-1.1 secondsStandard Deviation 2.8
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-1.8 secondsStandard Deviation 3.1
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-1.6 secondsStandard Deviation 3
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-0.8 secondsStandard Deviation 2.2
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-1.4 secondsStandard Deviation 2.9
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-0.4 secondsStandard Deviation 7.9
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-1.0 secondsStandard Deviation 2.9
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-1.3 secondsStandard Deviation 3.2
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-1.1 secondsStandard Deviation 3.3
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-1.3 secondsStandard Deviation 3
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-1.4 secondsStandard Deviation 3.2
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-1.3 secondsStandard Deviation 2.8
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-1.6 secondsStandard Deviation 3.4
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-1.3 secondsStandard Deviation 3.2
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the 20-meter Walk Test at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-1.7 secondsStandard Deviation 3.5
Secondary

Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104

The Patient Global Assessment is based on participant's answer to the question Considering all the ways your osteoarthritis of the knee has affected you during the last 48 Hours, select the number that best describes the impact of your knee osteoarthritis on your daily life, and can take on values between 0-10 (0=None, 10=Extreme), for summaries the values are rescaled to 0-100 by multiplication with 10. Higher scores indicated worsening of condition. A negative value in change in Patient's Global Assessment is indicative of an improvement.

Time frame: Baseline, Week 12, 26, 38, 52, 64, 78, 90 and 104

Population: Intention-to-Treat (ITT) analysis set included all participants randomly allocated to a treatment, based on the intention to treat as randomized principle. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed included those who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-16.6 score on a scaleStandard Deviation 23.5
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-22.7 score on a scaleStandard Deviation 26.5
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-27.5 score on a scaleStandard Deviation 25
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-18.9 score on a scaleStandard Deviation 26.2
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-16.3 score on a scaleStandard Deviation 22.3
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-19.6 score on a scaleStandard Deviation 25.8
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-22.7 score on a scaleStandard Deviation 24.6
PlaceboChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-25.8 score on a scaleStandard Deviation 25.6
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-13.9 score on a scaleStandard Deviation 20.6
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-21.5 score on a scaleStandard Deviation 24.1
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-21.7 score on a scaleStandard Deviation 21.9
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-15.1 score on a scaleStandard Deviation 22.7
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-17.2 score on a scaleStandard Deviation 22.5
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-23.0 score on a scaleStandard Deviation 22.3
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-22.3 score on a scaleStandard Deviation 24.5
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-20.9 score on a scaleStandard Deviation 21.2
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-17.0 score on a scaleStandard Deviation 25
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-19.2 score on a scaleStandard Deviation 24.9
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-21.7 score on a scaleStandard Deviation 24.8
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-17.7 score on a scaleStandard Deviation 25.3
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-18.0 score on a scaleStandard Deviation 23.9
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-22.3 score on a scaleStandard Deviation 23
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-23.1 score on a scaleStandard Deviation 25.7
Sprifermin (AS902330) 30 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-23.8 score on a scaleStandard Deviation 24.9
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-15.0 score on a scaleStandard Deviation 23.2
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-18.7 score on a scaleStandard Deviation 22.4
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-19.5 score on a scaleStandard Deviation 25.2
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-22.1 score on a scaleStandard Deviation 25.6
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-20.5 score on a scaleStandard Deviation 24.3
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-21.1 score on a scaleStandard Deviation 26.3
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-22.0 score on a scaleStandard Deviation 25.4
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Change From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-21.6 score on a scaleStandard Deviation 25.8
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 26-19.1 score on a scaleStandard Deviation 24.1
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 78-24.2 score on a scaleStandard Deviation 24.1
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 90-26.2 score on a scaleStandard Deviation 24.9
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 52-21.6 score on a scaleStandard Deviation 24
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 38-18.4 score on a scaleStandard Deviation 25.1
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 104-25.8 score on a scaleStandard Deviation 22.8
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 12-16.7 score on a scaleStandard Deviation 22.1
Sprifermin (AS902330) 100 mcg- 4 CyclesChange From Baseline in the Patient's Global Assessment (PGA) at Week 12, 26, 38, 52, 64, 78, 90 and 104Change at Week 64-21.3 score on a scaleStandard Deviation 24.6
Secondary

Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104

WOMAC pain subscale consists of 5 questions (Likert Scale) relating to pain. Sum of items of pain subscale ranges from 0-11. Higher scores=worse pain. Stiffness subscale consists of 2 questions relating articular function. Sum of items of stiffness subscale ranges from 0-8. Higher scores=worse function. Physical function subscale consists of 17 question relating to physical activities. Sum of items of physical function subscale ranges from 0-68. Higher scores= worse functional limitations. Each sub-scale is directly transformed into a 0-100 scale, where higher score indicates worse condition. WOMAC total score(24questions) is sum of total subscales which was directly transformed into score range from 0-100. Higher scores=worse condition. Negative value in change is indicative of improvement.

Time frame: Baseline, Week 52, Week 78 and Week 104

Population: Intention-to-Treat (ITT) analysis set included all participants randomly allocated to a treatment, based on the intention to treat as randomized principle. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed included those who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 52-18.88 score on a scaleStandard Deviation 24.72
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 78-18.41 score on a scaleStandard Deviation 20.43
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 104-25.37 score on a scaleStandard Deviation 20.6
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 104-20.89 score on a scaleStandard Deviation 20.1
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 52-18.51 score on a scaleStandard Deviation 19.49
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 78-17.38 score on a scaleStandard Deviation 21.01
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 52-15.51 score on a scaleStandard Deviation 19.14
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 78-20.44 score on a scaleStandard Deviation 26.76
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 104-22.02 score on a scaleStandard Deviation 19.7
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 78-21.04 score on a scaleStandard Deviation 20.81
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 52-16.42 score on a scaleStandard Deviation 18.61
PlaceboChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 104-23.20 score on a scaleStandard Deviation 25.84
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 52-17.97 score on a scaleStandard Deviation 16.95
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 78-18.23 score on a scaleStandard Deviation 19.41
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 104-20.73 score on a scaleStandard Deviation 20.22
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 104-20.00 score on a scaleStandard Deviation 20.99
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 78-23.00 score on a scaleStandard Deviation 20.42
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 104-23.22 score on a scaleStandard Deviation 21.42
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 78-19.47 score on a scaleStandard Deviation 25.87
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 52-18.52 score on a scaleStandard Deviation 22.89
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 78-19.34 score on a scaleStandard Deviation 19.15
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 104-20.56 score on a scaleStandard Deviation 23.93
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 52-21.55 score on a scaleStandard Deviation 18.36
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 52-16.84 score on a scaleStandard Deviation 17.64
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 104-21.42 score on a scaleStandard Deviation 21.37
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 78-16.36 score on a scaleStandard Deviation 20.35
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 78-18.19 score on a scaleStandard Deviation 21.15
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 52-12.01 score on a scaleStandard Deviation 18.04
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 104-17.75 score on a scaleStandard Deviation 22.74
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 52-15.40 score on a scaleStandard Deviation 18.31
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 52-12.64 score on a scaleStandard Deviation 17.42
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 104-19.06 score on a scaleStandard Deviation 21.52
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 104-19.44 score on a scaleStandard Deviation 20.88
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 78-16.00 score on a scaleStandard Deviation 20.82
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 52-11.09 score on a scaleStandard Deviation 21.14
Sprifermin (AS902330) 30 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 78-14.94 score on a scaleStandard Deviation 23.66
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 52-21.12 score on a scaleStandard Deviation 19.73
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 78-23.21 score on a scaleStandard Deviation 19.42
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 104-23.15 score on a scaleStandard Deviation 18.18
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 52-16.68 score on a scaleStandard Deviation 20.93
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 78-19.63 score on a scaleStandard Deviation 20.38
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 104-17.76 score on a scaleStandard Deviation 20.75
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 52-14.80 score on a scaleStandard Deviation 19.07
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 78-17.51 score on a scaleStandard Deviation 18.96
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 104-17.03 score on a scaleStandard Deviation 20.16
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 52-16.29 score on a scaleStandard Deviation 18.35
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 78-18.88 score on a scaleStandard Deviation 18.15
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Changes From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 104-18.37 score on a scaleStandard Deviation 18.69
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 104-22.79 score on a scaleStandard Deviation 24.6
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 52-18.29 score on a scaleStandard Deviation 18.25
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 78-21.44 score on a scaleStandard Deviation 23.99
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Stiffness: Change at Week 52-17.35 score on a scaleStandard Deviation 22.16
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 78-23.23 score on a scaleStandard Deviation 18.41
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 104-22.08 score on a scaleStandard Deviation 19.11
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Total: Change at Week 78-20.29 score on a scaleStandard Deviation 18.49
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 52-23.34 score on a scaleStandard Deviation 17.92
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Pain: Change at Week 104-26.06 score on a scaleStandard Deviation 18.39
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 104-20.82 score on a scaleStandard Deviation 20.39
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 78-19.29 score on a scaleStandard Deviation 19.56
Sprifermin (AS902330) 100 mcg- 4 CyclesChanges From Baseline in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Subscale, Stiffness Subscale, Physical Function Subscale and Total Score at Week 52, Week 78 and Week 104Function: Change at Week 52-16.91 score on a scaleStandard Deviation 19.69
Secondary

Serum Levels of Sprifermin/FGF-18

Time frame: Pre-dose at Week 0, 2 hours post-dose at Week 1 and 2 of Cycle 1, 2, 3 and 4 (each cycle is of 28 days)

Population: Safety analysis set included all participants who received at least 1 dose of study treatment. Arm assignments for participants in Safety Set were based on actual treatment received.

ArmMeasureValue (MEAN)
PlaceboSerum Levels of Sprifermin/FGF-18NA picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSerum Levels of Sprifermin/FGF-18NA picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSerum Levels of Sprifermin/FGF-18NA picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Serum Levels of Sprifermin/FGF-18NA picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSerum Levels of Sprifermin/FGF-18NA picogram/milliliter
Secondary

Synovial Fluid Levels of Sprifermin/FGF-18

Levels of sprifermin/FGF-18 in synovial fluid were measured to provide a first estimate of the residence time of sprifermin in the synovial fluid.

Time frame: Pre-dose at Week 0, 2 hours post-dose at Week 1 and 2 of Cycle 1, 2, 3 and 4 (each cycle is of 28 days)

Population: Safety analysis set included all participants who received at least 1 dose of study treatment. Arm assignments for participants in Safety Set were based on actual treatment received. Here Number of Participants analyzed = participants evaluable for this outcome measure and Number analyzed are those who were evaluable at specified timepoint.

ArmMeasureGroupValue (MEDIAN)
PlaceboSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 3260.9 picogram/milliliter
PlaceboSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 4215.3 picogram/milliliter
PlaceboSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 410670.0 picogram/milliliter
PlaceboSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 2202.5 picogram/milliliter
PlaceboSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 3463.7 picogram/milliliter
PlaceboSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 1622.1 picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 38019.3 picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 39592.2 picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 38607.6 picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 156876.4 picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 13150.9 picogram/milliliter
Sprifermin (AS902330) 30 mcg/Placebo - 2 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 13628.3 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 47103.8 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 214756.3 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 49602.7 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 11006.5 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 34605.1 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 27039.1 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 26408.3 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 39443.4 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 14167.0 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 39422.2 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 11493.2 picogram/milliliter
Sprifermin (AS902330) 30 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 412458.4 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 11386.1 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 31801.0 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 4331.1 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 1467.9 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 33908.8 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 2308.2 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 42285.2 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 316901.2 picogram/milliliter
Sprifermin (AS902330) 100 mcg/Placebo (2 Cycles)Synovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 1359.8 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 48026.4 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 27036.9 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 15896.4 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 11062.3 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 1258.2 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 232360.2 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 21146.7 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 320753.0 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 310160.0 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 2; Cycle 34161.7 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 0; Cycle 422132.1 picogram/milliliter
Sprifermin (AS902330) 100 mcg- 4 CyclesSynovial Fluid Levels of Sprifermin/FGF-18Week 1; Cycle 411468.3 picogram/milliliter

Source: ClinicalTrials.gov ยท Data processed: Feb 28, 2026