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HyperlipidemiaPhase 2/3NCT01267227

Effect of Pterostilbene on Cholesterol, Blood Pressure and Oxidative Stress

A Phase 2/3 study testing Pterostilbene 50 mg twice daily, Grape Extract and Pterostilbene 125 mg twice daily in people with Hyperlipidemia and Blood Pressure, run by University of Mississippi Medical Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Pterostilbene is one of several stilbenes found in certain berries, particularly blueberries, that have demonstrated pre-clinical benefit to cholesterol, blood pressure, and oxidative stress. Read more about this study

Who is it for?
Ages 18 to 88 years
Conditions the study is for
Hyperlipidemia, Blood Pressure, Oxidative Stress
What is being tested?
Pterostilbene 50 mg twice daily, Grape Extract and Pterostilbene 125 mg twice daily
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
1 siteUnited States
Study dates
Dec 2010to Feb 2012
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 88 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients ≥18 years of age with a previous TC ≥200 mg/dL and/or a LDL ≥100 mg/dL on either no therapy or stable therapy
  • Any concomitant cholesterol medication (not listed in the exclusion criteria) must be at a stable dose for at least 2 months prior to baseline laboratory

Who cannot join

  • Patients with significant hepatic, renal or gastrointestinal tract disease
  • Receiving thiazolidinediones or fibric acid derivatives
  • Current overt cardiovascular disease
  • Women of reproductive potential not receiving birth control
  • Pregnant/nursing women

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Mississippi Medical Center

    Jackson, Mississippi, 39216

Other trials in United States

About this study

Pterostilbene is one of several stilbenes found in certain berries, particularly blueberries, that have demonstrated pre-clinical benefit to cholesterol, blood pressure, and oxidative stress. The purpose of this study is to evaluate whether pterostilbene will help control cholesterol and blood pressure, as well as improve markers for oxidative stress in patients with dyslipidemia meeting inclusion criteria. The investigators also want to look at the safety of pterostilbene in these patients.

Read the detailed description

Subjects will be divided into one of four groups: (1) pterostilbene 50 mg twice daily; (2) pterostilbene 125 mg twice daily; (3) pterostilbene 50 mg/grape extract 100 mg twice daily; (4) matching placebo twice daily taken either one hour before or two hours after a meal. Blood and urine will be collected at enrollment and final study visits. If the patient's low density lipoprotein-C (LDL-C) or total cholesterol (TC) is not within the inclusion criteria based on enrollment blood drawn, the patient will not be allowed to initiate study medication. All study visits will consist of brief clinical examination (including vital signs), subjective adverse event reporting, and fasting donated blood and urine for clinical laboratory tests. Pill counts will be done to assess compliance.

Being tested
Pterostilbene 50 mg twice daily, Placebo, Grape Extract, Pterostilbene 125 mg twice daily
Keywords
Hyperlipidemia, Cholesterol, Blood Pressure, Oxidative Stress, Pterostilbene, Blueberry, Grape Extract
Medical subject headings
Hyperlipidemias

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Pterostilbene 50 mg twice dailyDrug

    Also called pTeroPure

    Pterostilbene 50 mg twice by mouth daily for 6 to 8 weeks

  • PlaceboDrug

    Matching placebo by mouth twice daily for 6 to 8 weeks

  • Grape ExtractDrug

    Also called ShanStar Concord Grape

    Grape extract 100 mg twice daily for 6-8 weeks

  • Pterostilbene 125 mg twice dailyDrug

    Also called pTeropure

    Pterostilbene 125 mg twice daily for 6-8 weeks

Study groups in NCT01267227
Study groupRoleWhat they receive
High DoseActive comparatorPterostilbene 125 mg twice daily
Receives: Drug: Pterostilbene 125 mg twice daily
Low DoseActive comparatorPterostilbene 50 mg twice daily
Receives: Drug: Pterostilbene 50 mg twice daily
Low Dose CombinationActive comparatorPterostilbene 50 mg/Grape Extract 100 mg twice daily
Receives: Drug: Pterostilbene 50 mg twice daily; Drug: Grape Extract
PlaceboPlacebo comparatorMatching placebo twice daily
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. LDL

    Increase in low density lipoprotein (LDL)

    Measured: Baseline and 6-8 weeks

Secondary outcomes (2)
  1. Blood Pressure

    Reduction in systolic blood pressure versus placebo

    Measured: 6-8 weeks

  2. Subjective Adverse Effects

    Number of participants with adverse effects as a measure of safety

    Measured: Baseline and 6-8 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Dec 2010 (estimated)
  2. Study startDec 2010
  3. Primary completionFeb 2012
  4. Study completionFeb 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01267227
Sponsor's protocol ID
2010-0225
Status last verified
Dec 2017
First submitted
17 Dec 2010
Last updated
10 Jan 2018
Data monitoring committee
No

Publications

  • Paul S, Rimando AM, Lee HJ, Ji Y, Reddy BS, Suh N. Anti-inflammatory action of pterostilbene is mediated through the p38 mitogen-activated protein kinase pathway in colon cancer cells. Cancer Prev Res (Phila). 2009 Jul;2(7):650-7. doi: 10.1158/1940-6207.CAPR-08-0224. Epub 2009 Jun 23.

    PubMed 19549798
  • Rimando AM, Kalt W, Magee JB, Dewey J, Ballington JR. Resveratrol, pterostilbene, and piceatannol in vaccinium berries. J Agric Food Chem. 2004 Jul 28;52(15):4713-9. doi: 10.1021/jf040095e.

    PubMed 15264904
  • Rimando AM, Nagmani R, Feller DR, Yokoyama W. Pterostilbene, a new agonist for the peroxisome proliferator-activated receptor alpha-isoform, lowers plasma lipoproteins and cholesterol in hypercholesterolemic hamsters. J Agric Food Chem. 2005 May 4;53(9):3403-7. doi: 10.1021/jf0580364.

    PubMed 15853379
  • Amarnath Satheesh M, Pari L. The antioxidant role of pterostilbene in streptozotocin-nicotinamide-induced type 2 diabetes mellitus in Wistar rats. J Pharm Pharmacol. 2006 Nov;58(11):1483-90. doi: 10.1211/jpp.58.11.0009.

    PubMed 17132211
  • Satheesh AM, Pari L. Effect of pterostilbene on lipids and lipid profiles in streptozotocin-nicotinamide induced type 2 diabetes mellitus. Journal of Applied Biomedine 6(1):31-37, 2008.

  • Riche DM, Riche KD, Blackshear CT, McEwen CL, Sherman JJ, Wofford MR, Griswold ME. Pterostilbene on metabolic parameters: a randomized, double-blind, and placebo-controlled trial. Evid Based Complement Alternat Med. 2014;2014:459165. doi: 10.1155/2014/459165. Epub 2014 Jun 25.

    PubMed 25057276
  • Riche DM, McEwen CL, Riche KD, Sherman JJ, Wofford MR, Deschamp D, Griswold M. Analysis of safety from a human clinical trial with pterostilbene. J Toxicol. 2013;2013:463595. doi: 10.1155/2013/463595. Epub 2013 Feb 4.

    PubMed 23431291

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Pterostilbene 50 mg twice daily, Grape Extract and Pterostilbene 125 mg twice daily in people with Hyperlipidemia and Blood Pressure, run by University of Mississippi Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 10 Jan 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 3 May 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

LDL (time frame: Baseline and 6-8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01267227, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Jan 2018.

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