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Phase IV interventional design where all participants used the test product as per package instructions for 6-weeks. Baseline observations were compared to those collected after 6-weeks of treatment.
The use of the marketed natural product, LivRelief Varicose Veins Cream, was observed in 32 patients with lower limb varicose veins. Participants were recruited from the patient population at The Mayer Institute in Hamilton Ontario, Canada. Patients that agreed to participate in the study and met the eligibility criteria were provided with a 6-week supply of the cream to use at home as directed on the product packaging. The following study measures were performed at the clinic prior to the first use of the cream, then again at the clinic after 6 weeks of use: CEAP (Clinical, Etiological, Anatomical, Pathophysiological) classification and VCSS (Venous Clinical Severity score). These are assessments performed by the doctor or nurse to determine the severity of their varicose veins and CVI (chronic venous insufficiency), measurements taken of the circumference of their legs to measure swelling of the legs, photographs of the varicose veins, a quality of life enjoyment and satisfaction questionnaire (QLES-Q-SF) completed by the subjects to describe their satisfaction with various aspects of their life over the last week and documentation of any reactions to the treatment. The cream was applied to their varicose veins twice a day for 6 weeks.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| LivRelief Varicose Veins Cream | Experimental | Intervention: All subjects were provided with an adequate supply of the Natural Health Product LivRelief Varicose Veins cream for 6 weeks of at home use. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Natural Health Product: LivRelief Varicose Veins Cream | Other | This product is intended to improve circulation and blood flow to minimize the appearance of varicose veins. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Recruitment feasibility | Recruitment of at least 70% of all eligible participants | study duration:~4 weeks |
| Data Collection | Collection of at least 70% of scheduled data | study duration: ~6 to 12 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Perry V Mayer, MD | The Mayer Institute | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The Mayer Institute | Hamilton | Ontario | L8R 2R3 | Canada |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30596677 | Derived | Dwyer HC, Baranowski DC, Mayer PV, Gabriele S. LivRelief varicose veins cream in the treatment of chronic venous insufficiency of the lower limbs: A 6-week single arm pilot study. PLoS One. 2018 Dec 31;13(12):e0208954. doi: 10.1371/journal.pone.0208954. eCollection 2018. |
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| ID | Term |
|---|---|
| D014648 | Varicose Veins |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
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This was a single arm pilot study to determine the feasibility of conducting an appropriately sized RCT within the same population using the same clinical outcome measures.
Eligible adult patients of the clinic with varicose veins were asked to use the cream as directed on the packaging for 6-weeks and the post-treatment measures were compared to baseline data. This study also provided SDs of the sample for comparison to the study population.
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