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This study consists of a randomized, double-blind, placebo-controlled crossover trial with open label extension evaluating a topical natural health cream containing ß-caryophyllene alone and in combination with 0.025% capsicum oleoresin against placebo. At the end of the randomized controlled phase of the trial all participants will be given open-label combination cream to be administered over the subsequent 3 weeks.
Primary Endpoint: Evaluation of improvement in pain interference as measured by the BPI in individuals who are experiencing pain due to osteoarthritis of the knee.
Secondary Endpoints: Secondary endpoints are: Confirmation of safety of the topical cream when used daily over 10 weeks.
Further evaluation will include overall patient satisfaction with the products tested.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| BetaC + Capsacian | Active Comparator | 1-3 mls BetaC + Capsacian applied to the painful areas, once upon awakening, once mid day and once before bed-time, each day for two (2) weeks. |
|
| BetaC Only | Active Comparator | 1-3 mls BetaC applied to the painful areas, once upon awakening, once mid day and once before bed-time, each day for two (2) weeks. |
|
| Placebo | Placebo Comparator | 1-3 mls Placebo applied to the painful areas, once upon awakening, once mid day and once before bed-time, each day for two (2) weeks. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| BetaC + Capsaicin Topical Cream | Other | BetaC + Capsacin Topical Cream applied to painful knee area 3 times per day. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Pain Score Diary | Change in mean daily pain diary score from baseline (average pain score over 7 days pre-treatment) to post treatment | 2 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| BPI-Short Form | 12 weeks | |
| Patient's Global Impression of Change | 12 weeks |
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Inclusion Criteria:
Osteoarthritis of the knee according to American College of Rheumatology criteria: Knee pain with 3 of the following:
Moderate to severe pain, as defined by an average 7-day pain score of greater than 4.0 on an 11-point numerical rating scale for pain intensity (NRS-PI).
All concurrent medications taken for any reason stable for 14 days
Ability to follow protocol with reference to cognitive and situational factors (e.g. stable housing, ability to attend visits)
Ability to read and write English
Willing and able to give informed consent
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| QEII Health Sciences Centre | Halifax | Nova Scotia | B3H 2Y9 | Canada |
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| BetaC Topical Cream | Other | BetaC Topical Cream Cream applied to painful knee area 3 times per day. |
|
| Placebo Topical Cream | Other | Placebo Cream applied to painful knee area 3 times per day. |
|
| ID | Term |
|---|---|
| D010146 | Pain |
| ID | Term |
|---|---|
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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