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CompletedNCT00789425Updated Jul 13, 2017

Investigating the Effect of Standardized Olive Extract on Bone Turnover Markers in Postmenopausal Women

A Phase 2 interventional study of Standardized Extract of Olive Polyphenols and Placebo in Osteoporosis and Osteopenia, sponsored by BioActor. Completed at 1 site in Poland. Open to female participants aged 50 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-07-13.

Sponsored by BioActor · Phase 2, Interventional, and Prevention

Phase
Phase 2
Study type
Interventional
Enrollment
64
Allocation
Randomized
Ages
50 Years to 70 Years
Sex
Female
01

Study summary

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.

Read the detailed description

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) .

02

Conditions studied

  • Osteoporosis
  • Osteopenia

Keywords

  • osteoporosis
  • osteopenia
  • olive extract
  • oleuropein
03

In context

Osteoporosis

1,640 studies on the registry are indexed under Osteoporosis; 212 are open to participants now.

This study's enrollment of 64 is below the median of 95 across 1,133 interventional studies indexed under Osteoporosis.

Browse Osteoporosis studies →

Lead sponsor

BioActor is the lead sponsor of 5 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 70 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Signed written informed consent
  • Gender female
  • Between 50-70 years of age
  • At least 2 years post menopause
  • Bone mineral density (BMD) \< or equal to -1.5 and > or equal to -2.5 SD% Young Adult
  • Patients with stabilised food habits
  • Patients able to understand the nature of the study and able to give signed written informed consent.

Exclusion criteria

Exclusion Criteria:

  • Patients with any diseases affecting bone tissue e.g. primary hyperparathyroidism.
  • Patients during any therapy affecting bone tissue e.g. HRT, corticosteroids.
  • Patients with any associated illness of sufficient severity, or clinically relevant abnormalities in the pre-study screening, which in the opinion of the investigator would make them unsuitable for inclusion in the study, e.g. severe heart failure, severe ischaemic heart disease etc.
  • Planned hospitalisation (major surgery) during the study.
  • Patients who have any known allergy or intolerance to any compound in the test product.
  • Patients who are unwilling or unable to comply with the study protocol for any other reason.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
64 participants (actual)

Study arms

  • Active comparator
    1

    a standardized extract of olive polyphenols at 250 mg per day + 1000 mg of calcium per day.

    Dietary Supplement: Standardized Extract of Olive Polyphenols

  • Placebo comparator
    2

    Placebo (starch) + 1000 mg of calcium per day.

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementStandardized 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.

  • Dietary supplementPlacebo

    Placebo (starch). A supplement with 1000 mg calcium per day will be supplied together with the active treatment.

06

What researchers measure

Primary outcomes

  1. Serum levels of Osteocalcin and CTX will be used as bone turnover markers

    Time frame: 0, 3, 6, and 12 months

Secondary outcomes

  1. Bone mineral density as measured by DEXA in lumbar spine and total hip

    Time frame: 0 and 12 months

  2. hs-CRP and IL-6 in serum as inflammation markers

    Time frame: 0, 6, and 12 months

  3. ORAC values in serum as oxidative stress marker

    Time frame: 0, 6, and 12 months

  4. Total cholesterol, HDL-C, LDL-C, triglycerides in serum as CVD-risk markers.

    Time frame: 0, 6, and 12 months

07

Study locations

1 site
  • Osteoporosis Outpatient of the Institute of Agricultural Medicine
    Lublin, 20-950, Poland
08

References and documents

Publications

  • Filip R, Possemiers S, Heyerick A, Pinheiro I, Raszewski G, Davicco MJ, Coxam V. Twelve-month consumption of a polyphenol extract from olive (Olea europaea) in a double blind, randomized trial increases serum total osteocalcin levels and improves serum lipid profiles in postmenopausal women with osteopenia. J Nutr Health Aging. 2015 Jan;19(1):77-86. doi: 10.1007/s12603-014-0480-x. PubMed 25560820 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 13, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00789425
Lead sponsor
BioActor
First posted
Nov 11, 2008
Start date
Sep 2008
Primary completion
Mar 2010
Completion
Mar 2010
Last update
Jul 13, 2017

Study contacts

Rafal Filip, MD PhD
principal investigator · Institute of Agricultural Medicine

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2017. You cannot join it, but the record below documents what was studied.

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