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Sponsored by: |
BioActor |
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Information provided by: | BioActor |
ClinicalTrials.gov Identifier: | NCT00789425 |
The purpose of this study is to determine whether the intake of a daily dosage of standardized olive extract provides any protection against bone loss.
Condition | Intervention | Phase |
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Osteoporosis Osteopenia |
Dietary Supplement: Standardized Extract of Olive Polyphenols Dietary Supplement: Placebo |
Phase II |
Study Type: | Interventional |
Study Design: | Prevention, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Placebo Control, Parallel Assignment, Efficacy Study |
Official Title: | A Randomised, Double Blind, Parallel Group, 12-Month Comparison of a Standardized Olive Extract With Placebo in Postmenopausal Women With Decreased Bone Mineral Density |
Estimated Enrollment: | 90 |
Study Start Date: | September 2008 |
Estimated Study Completion Date: | March 2010 |
Estimated Primary Completion Date: | March 2010 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Active Comparator
a standardized extract of olive polyphenols at 250 mg per day + 1000 mg of calcium per day.
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Dietary Supplement: Standardized Extract of Olive Polyphenols
Dietary supplement containing 250 mg of a standardized extract of olive polyphenols per day in 1 capsule. A supplement with 1000 mg calcium per day will be supplied together with the active treatment. |
2: Placebo Comparator
Placebo (starch) + 1000 mg of calcium per day.
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Dietary Supplement: Placebo
Placebo (starch). A supplement with 1000 mg calcium per day will be supplied together with the active treatment.
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Apart from estrogen deficiency, the early postmenopausal period is also characterised by an increasing inflammatory and oxidant status, which further contributes to the development of osteoporosis/osteopenia. The link between systemic inflammation and osteoporosis has only been established recently as it was found that higher circulating hsCRP levels are associated with lower bone mineral density in both healthy pre- and postmenopausal women. Furthermore, it was already known for a long time that one of the most important cytokines implicated in the pathogenesis of various metabolic bone diseases, including postmenopausal osteoporosis, is interleukin (IL)-6, which is produced by osteoblasts, monocytes and T-cells.
Olive oil is the principle fat source of the traditional Mediterranean diet, a diet that has been associated with a low incidence of some diseases, including coronary heart disease and osteoporosis. In addition to the main ingredient (ie. oleic acid) extra virgin olive oil also contains phenolic compounds, such as oleuropein- and ligstroside-aglycones and their derivatives. They are formed in olives by enzymatic removal of glucose from the polar parent compound oleuropein-glycoside. A Mediterranean diet rich in olive oil supplies 10 - 20 mg of phenols per day.
The main metabolic attribute of oleuropein is that it exerts both antioxidant and anti-inflammatory activity by lowering the levels of proinflammatory cytokines like IL-1, IL-6 or TNF-alpha. By inhibiting osteoclast activity, this may result in lowering the rate of bone resorption and, at least in part, protect against osteoporosis development.
Formulated as a capsule it is expected that the compliance and tolerability will be improved compared to the liquid administration. The present study is designed to investigate the effect of 250 mg of a standardized extract of olive polyphenols per day on bone loss in postmenopausal women with decreased bone mass (osteopenia) .
Ages Eligible for Study: | 50 Years to 70 Years |
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Exclusion Criteria:
Contact: Rafal Filip, MD PhD | +48817184470 | r.s.filip@wp.pl |
Poland | |
Osteoporosis Outpatient of the Institute of Agricultural Medicine | Recruiting |
Lublin, Poland, 20-950 | |
Contact: Rafal Filip, MD PhD +48817184470 r.s.filip@wp.pl | |
Principal Investigator: Rafal Filip, MD PhD |
Principal Investigator: | Rafal Filip, MD PhD | Institute of Agricultural Medicine |
Responsible Party: | BioActor ( Hans van der Saag ) |
Study ID Numbers: | BA-IMW-POLYPHENOL-001 |
Study First Received: | September 30, 2008 |
Last Updated: | November 26, 2008 |
ClinicalTrials.gov Identifier: | NCT00789425 |
Health Authority: | Poland: Office for Registration of Medicinal Products, Medical Devices and Biocidal Products |
osteoporosis osteopenia olive extract oleuropein |
Calcium, Dietary Musculoskeletal Diseases Osteoporosis Bone Diseases, Metabolic Bone Diseases |