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A 12-week Study to Evaluate the Efficacy and Safety of HP-5000 in Subjects With Osteoarthritis Pain of the Knee

A 12-Week, Randomized, Double-blind, Placebo-controlled, Parallel-group Phase 3 Study to Evaluate the Efficacy and Safety of HP-5000 Topical System (Patch) in Subjects With Osteoarthritis Pain of the Knee

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04683627
Enrollment
370
Registered
2020-12-24
Start date
2020-12-29
Completion date
2022-07-25
Last updated
2025-09-04

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

Conditions

Osteoarthritis Pain of the Knee

Brief summary

A 12-week, Randomized, Double-blind, Placebo-controlled, Parallel-group Phase 3 study to Evaluate the Efficacy and Safety of HP-5000 in Subjects with Osteoarthritis (OA) Pain of the Knee

Detailed description

This is a multi-center, randomized, double-blind, and placebo-controlled phase 3 study evaluating the safety and efficacy of HP-5000 in subjects with OA pain of the knees. The study will consist of up to a 28-day Screening Phase that will include a Washout Period of current prescription and over the counter (OTC) analgesics; a 12-week Double-blind Treatment Phase, and a 1-week safety Follow-up Phase.

Interventions

DRUGDiclofenac sodium active topical patch

A topical patch with diclofenac sodium as active ingredient was used and evaluated for the treatment of OA pain of the knee.

DRUGPlacebo patch

A placebo patch without diclofenac sodium was used for the placebo arm.

Sponsors

Noven Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Male or female aged 40 to 85 years with a clinical diagnosis of OA of the target knee according to the American College of Rheumatology criteria. * Has an X-ray of the target knee, taken no more than 1 year before Baseline, showing evidence of OA. * Has pain of OA in the designated/target study knee.

Exclusion criteria

* Body mass index (BMI) \> 40. * Any subject who did not follow the restriction of prohibited therapies during Washout period. * Arthritis of the target knee that is not caused by OA but caused by diseases such as rheumatoid arthritis, gout, psoriasis, syphilitic arthropathy, ochronosis, metabolic or other primary bone disease, or acute traumatic injury.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline to Week 12 in WOMAC Pain Score (Intent-to-treat Set)Baseline and 12-weekTo evaluate efficacy of HP-5000 patch treatment compared with HP-5000 placebo patch treatment of Osteoarthritis of the knee as evaluated by change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score from baseline to week 12. WOMAC pain score is a scale that evaluate five items including walking, stair climbing, nocturnal, rest and weight bearing. Each item is rated on a scale of 0 to 4, with 0 being no difficulty and 4 being extremely difficulty. The total score is the sum of five items. The total score ranges from 0 to 20 with a low score considered a better outcome and a high score considered a worse outcome.

Secondary

MeasureTime frameDescription
Change From Baseline to Week 12 in WOMAC Stiffness Score12 weeksTo evaluate efficacy of HP-5000 patch treatment compared with HP-5000 placebo patch treatment of Osteoarthritis of the knee as evaluated by change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score from baseline to week 12. WOMAC pain score is a scale that evaluate five items including walking, stair climbing, nocturnal, rest and weight bearing. Each item is rated on a scale of 0 to 4, with 0 being no difficulty and 4 being extremely difficulty. The total score is the sum of five items. The total score ranges from 0 to 20 with a low score considered a better outcome and a high score considered a worse outcome.
WOMAC Physical Function Change From Baseline at Week 12Baseline and 12 weeksTo evaluate efficacy of HP-5000 patch treatment compared with HP-5000 placebo patch treatment of Osteoarthritis of the knee as evaluated by change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score from baseline to week 12. WOMAC pain score is a scale that evaluate five items including walking, stair climbing, nocturnal, rest and weight bearing. Each item is rated on a scale of 0 to 4, with 0 being no difficulty and 4 being extremely difficulty. The total score is the sum of five items. The total score ranges from 0 to 20 with a low score considered a better outcome and a high score considered a worse outcome.

Countries

United States

Participant flow

Pre-assignment details

Each participant contributed one study knee in this study.

Participants by arm

ArmCount
HP-5000 Treatment
Diclofenac Sodium Active Topical Patch was evaluated against the placebo patch for 12-week for the treatment of OA pain of the knee
184
Placebo Treatment
Placebo topical patch
185
Total369

Baseline characteristics

CharacteristicTotalHP-5000 TreatmentPlacebo Treatment
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
138 Participants73 Participants65 Participants
Age, Categorical
Between 18 and 65 years
231 Participants111 Participants120 Participants
Age, Continuous61.8 years
STANDARD_DEVIATION 8.76
62.2 years
STANDARD_DEVIATION 8.62
61.4 years
STANDARD_DEVIATION 8.94
BMI30.28 Kg/m2
STANDARD_DEVIATION 5.083
30.49 Kg/m2
STANDARD_DEVIATION 5.004
30.06 Kg/m2
STANDARD_DEVIATION 5.166
Duration of OA of the knee8.0 years
STANDARD_DEVIATION 7.73
7.4 years
STANDARD_DEVIATION 6.42
8.7 years
STANDARD_DEVIATION 8.81
Ethnicity (NIH/OMB)
Hispanic or Latino
115 Participants58 Participants57 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
252 Participants124 Participants128 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants2 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
51 Participants29 Participants22 Participants
Race (NIH/OMB)
Black or African American
57 Participants30 Participants27 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
259 Participants124 Participants135 Participants
Region of Enrollment
United States
369 participants184 participants185 participants
Sex: Female, Male
Female
241 Participants119 Participants122 Participants
Sex: Female, Male
Male
128 Participants65 Participants63 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1844 / 185
other
Total, other adverse events
33 / 18446 / 185
serious
Total, serious adverse events
0 / 1844 / 185

Outcome results

Primary

Change From Baseline to Week 12 in WOMAC Pain Score (Intent-to-treat Set)

To evaluate efficacy of HP-5000 patch treatment compared with HP-5000 placebo patch treatment of Osteoarthritis of the knee as evaluated by change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score from baseline to week 12. WOMAC pain score is a scale that evaluate five items including walking, stair climbing, nocturnal, rest and weight bearing. Each item is rated on a scale of 0 to 4, with 0 being no difficulty and 4 being extremely difficulty. The total score is the sum of five items. The total score ranges from 0 to 20 with a low score considered a better outcome and a high score considered a worse outcome.

Time frame: Baseline and 12-week

ArmMeasureValue (MEAN)Dispersion
HP-5000 TreatmentChange From Baseline to Week 12 in WOMAC Pain Score (Intent-to-treat Set)-4.6 score on a scaleStandard Deviation 0.26
Placebo TreatmentChange From Baseline to Week 12 in WOMAC Pain Score (Intent-to-treat Set)-5.4 score on a scaleStandard Deviation 0.26
Secondary

Change From Baseline to Week 12 in WOMAC Stiffness Score

To evaluate efficacy of HP-5000 patch treatment compared with HP-5000 placebo patch treatment of Osteoarthritis of the knee as evaluated by change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score from baseline to week 12. WOMAC pain score is a scale that evaluate five items including walking, stair climbing, nocturnal, rest and weight bearing. Each item is rated on a scale of 0 to 4, with 0 being no difficulty and 4 being extremely difficulty. The total score is the sum of five items. The total score ranges from 0 to 20 with a low score considered a better outcome and a high score considered a worse outcome.

Time frame: 12 weeks

ArmMeasureValue (MEAN)Dispersion
HP-5000 TreatmentChange From Baseline to Week 12 in WOMAC Stiffness Score-1.6 score on a scaleStandard Deviation 0.12
Placebo TreatmentChange From Baseline to Week 12 in WOMAC Stiffness Score-1.8 score on a scaleStandard Deviation 0.12
Secondary

WOMAC Physical Function Change From Baseline at Week 12

To evaluate efficacy of HP-5000 patch treatment compared with HP-5000 placebo patch treatment of Osteoarthritis of the knee as evaluated by change in Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score from baseline to week 12. WOMAC pain score is a scale that evaluate five items including walking, stair climbing, nocturnal, rest and weight bearing. Each item is rated on a scale of 0 to 4, with 0 being no difficulty and 4 being extremely difficulty. The total score is the sum of five items. The total score ranges from 0 to 20 with a low score considered a better outcome and a high score considered a worse outcome.

Time frame: Baseline and 12 weeks

ArmMeasureValue (MEAN)Dispersion
HP-5000 TreatmentWOMAC Physical Function Change From Baseline at Week 12-13.3 score on a scaleStandard Deviation 0.8
Placebo TreatmentWOMAC Physical Function Change From Baseline at Week 12-15.9 score on a scaleStandard Deviation 0.89

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026