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Study of Flavocoxid (Limbrel) Versus Naproxen in Subjects With Moderate-Severe Osteoarthritis of the Knee

A Double-Blind,Randomized, Placebo Controlled, Parallel Group, Multi-Center Study of Flavocoxid (Limbrel) Versuss Naproxen in Subjects With Moderate-Severe Osteoarthritis of the Knee

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00928837
Enrollment
350
Registered
2009-06-26
Start date
2006-03-31
Completion date
2007-09-30
Last updated
2017-12-13

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

Conditions

Osteoarthritis

Brief summary

The purpose of the study is to compare the efficacy and safety of flavocoxid (Limbrel) with Naproxen and placebo in OA of the knee.

Detailed description

To compare the efficacy, safety, quality of life and economic impact of flavocoxid vs naproxen.

Interventions

DIETARY_SUPPLEMENTFlavocoxid 500 mg

flavonoid mixture

DRUGNaproxen

non-steroidal anti-inflammatory drug

OTHERPlacebo

Placebo

Medical food product

Sponsors

Primus Pharmaceuticals
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

Major inclusión criteria: 1. Adults of either gender, ages 35-85, in general good health 2. Diagnosed with OA of the knee, K-L Grade 2-3 3. History of positive response to NSAID's or COX-2 inhibitors 4. Able and willing to discontinue other medicinal OA therapies for length of the study (subjects may continue low dose aspirin for cardioprotection) 5. Females of child bearing potential must use acceptable method of birth control Major

Exclusion criteria

1. Unwilling or unable to read and sign informed consent document 2. Pregnant and nursing women 3. History of severe cardiovascular disease including, but not limited to chronic angina, congestive heart failure, uncontrolled hypertension, acute myocardial infarction within past year 4. K-L grade 1 or 4 OA of the target knee 5. chronic bleeding disorder or present use of anticoagulants 6. History of upper G-I bleed in the past 5 years 7. Significant renal disease including nephrotic syndrome, proteinuria \>1 gm/24 hrs or serum Creatinine \>2.0 8. Any arthritic disease that is or has the potential to affect the knees during the course of the study 9. Any other condition that might confound evaluation of the target joint including, but not limited to, bursitis, tendonitis or internal derangement in or about the knee, gait disturbances (e.g. mechanical, neurological conditions or disorders of the back), fibromyalgia, polyneuropathies, etc.

Design outcomes

Primary

MeasureTime frameDescription
to compare the efficacy of 2 doses of flavocoxid with that of naproxen and placebo at 12 weeks3 monthscomparison of short WOMAC and timed walk
to compare the safety of 2 doses of flavocoxid with that of naproxen and placebo at 12 weeks3 monthsComparison of FS-36, subject tolerability VAS

Secondary

MeasureTime frameDescription
to compare the efficacy of 2 doses of flavocoxid with that of naproxen and placebo at 12 weeks6 monthscomparison of short WOMAC and timed walk
to compare the safety of 2 doses of flavocoxid with that of naproxen and placebo at 12 weeks6 monthsComparison of FS-36, subject tolerability VAS

Countries

United States

Outcome results

None listed

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