Olive Oil for High Risk Breast Cancer Prevention in Women
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT02068092 |
Recruitment Status :
Completed
First Posted : February 21, 2014
Last Update Posted : August 8, 2022
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Condition or disease | Intervention/treatment | Phase |
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Breast Cancer | Drug: Hydroxytyrosol | Phase 2 Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 62 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Prevention |
Official Title: | A Pilot Study of Hydroxytyrosol, a Component of Olive Oil for Breast Cancer Prevention In Women At High Risk Of Breast Cancer |
Actual Study Start Date : | December 2013 |
Actual Primary Completion Date : | July 2021 |
Actual Study Completion Date : | July 2021 |

Arm | Intervention/treatment |
---|---|
Experimental: Hydroxytyrosol
Hydroxytyrosol 25 mg orally once daily for 1 year.
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Drug: Hydroxytyrosol |
- Mammographic breast density [ Time Frame: 3 years ]To determine breast density as assessed by mammography
- Number of participants with adverse events [ Time Frame: 3 years ]Number of participants with adverse events as assessed by the National Cancer Institute Common Terminology Criteria for Adverse Events v4.03
- Expression of Ki67 in tumor tissue [ Time Frame: 3 years ]To determine the expression of Ki67 in tumor tissue
- MRI breast density [ Time Frame: 3 years ]To determine breast density as assessed by magnetic resonance imaging

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Inclusion Criteria
- Female aged ≥18 years of age.
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Elevated risk of breast cancer as defined by at least one of the following categories and have declined tamoxifen and/or raloxifene therapy:
- Diagnosis of lobular carcinoma in situ (LCIS), atypical ductal, or lobular hyperplasia.
- A known deleterious mutation in BRCA1, BRCA2, PTEN, or TP53. (Note: The participant must be a documented carrier to meet this criterion. If there is a known mutation in a hereditary breast cancer susceptibility gene in a participant's family member, the participant herself must have undergone genetic testing as per National Comprehensive Cancer Network guidelines to be eligible per this criterion.)
- Modified Gail/CARE model risk at 5 years ≥ 1.67%. (Note: Risk models are to be used only if there is no known previous diagnosis of resected ductal carcinoma in situ [DCIS] or LCIS and there is no known deleterious mutation in BRCA1, BRCA2, PTEN, or TP53)
- 10% or more probability of BRCA mutation by BRCAPRO or similar model
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Must have at least one breast available for imaging and biopsy. A previously irradiated breast (i.e., for resected DCIS) is not evaluable for breast imaging or biopsy.
a. Allow for submission of core needle breast material for future use.
- Baseline mammogram performed within 90 days prior to study entry, done on a digital mammography machine, that are reported as normal or benign.
- Baseline mammographic density > 10% based upon the classification system (2 = 11-50%, "scattered fibroglandular densities"; 3 = 51-75%, heterogeneously dense; 4 = >75%, extremely dense). Women with a baseline mammographic density of ≤ 10% (1 = ≤10%, breasts are almost entirely fat) will not be eligible
- Eastern Cooperative Oncology Group performance status of 0-1.
- Prior anticoagulant therapy use is allowed provided therapy is discontinued at least 7 days prior to the breast biopsy in order to reduce the risk of bleeding. For participants who have taken an anticoagulation within the past 7 days, international normalized ratio must be ≤ 1.5 x institutional upper limit of normal and prothrombin time and partial thromboplastin time ≤ ULN prior to the breast biopsy.
- Must agree to use effective consistent contraception. Hormone-based birth control (pills, patches, or shots) is allowed. Hormone replacement therapy is not allowed for postmenopausal participants.
- Must not participate in any other clinical trial for the treatment or prevention of cancer unless they are no longer receiving the intervention and are in the follow-up phase only. Participants must also agree not to join such a trial while participating in this study.
- Provide written informed consent.
Exclusion Criteria
- DCIS or previous invasive ductal carcinoma.
- Any prior malignancy except for the following: adequately treated basal cell or squamous cell skin cancer and in situ cervical cancer.
- Prior tamoxifen or raloxifene use in the past 1 year.
- Pregnant or breastfeeding.
- Bilateral breast implants. Prior breast reduction surgery is allowed.
- Mammograms that are reported as suspicious.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02068092
United States, Texas | |
Houston Methodist Hospital | |
Houston, Texas, United States, 77030 | |
Houston Methodist Hospital Willowbrook | |
Houston, Texas, United States, 77070 | |
Houston Methodist Hospital Sugar Land | |
Sugar Land, Texas, United States, 77479 |
Principal Investigator: | Jenny Chang, MD | The Methodist Hospital Research Institute |
Responsible Party: | Jenny C. Chang, MD, Principal Investigator, The Methodist Hospital Research Institute |
ClinicalTrials.gov Identifier: | NCT02068092 |
Other Study ID Numbers: |
Pro00009472 0713-0108 ( Other Identifier: HMRI IRB ) |
First Posted: | February 21, 2014 Key Record Dates |
Last Update Posted: | August 8, 2022 |
Last Verified: | August 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Plan Description: | To be determined |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Breast Neoplasms Neoplasms by Site Neoplasms Breast Diseases Skin Diseases 3,4-dihydroxyphenylethanol |
Anti-Infective Agents Antioxidants Molecular Mechanisms of Pharmacological Action Protective Agents Physiological Effects of Drugs Platelet Aggregation Inhibitors |