Impact of Omega 3 Fatty Acid Supplementation on Aromatase in Obese Subjects
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ClinicalTrials.gov Identifier: NCT02538484 |
Recruitment Status :
Recruiting
First Posted : September 2, 2015
Last Update Posted : August 29, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Breast Cancer | Drug: Letrozole Dietary Supplement: Fish Oil | Early Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 60 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | A Phase 0, Investigator Initiated Study, Evaluating the Impact of Omega 3 Fatty Acid Supplementation on Aromatase in Obese Postmenopausal Women With Estrogen Receptor Positive Breast Cancer |
Study Start Date : | April 2016 |
Estimated Primary Completion Date : | June 2023 |
Estimated Study Completion Date : | June 2024 |

Arm | Intervention/treatment |
---|---|
Active Comparator: Letrozole
Letrozole 2.5 mg by mouth daily for 30 days.
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Drug: Letrozole
Aromatase inhibitor
Other Name: Femara |
Active Comparator: Fish Oil
Fish oil 2700 mg by mouth daily for 30 days.
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Dietary Supplement: Fish Oil
Omega-3 free fatty acid
Other Name: Omega-3 |
Active Comparator: Letrozole and Fish Oil
Letrozole 2.5 mg and Fish oil 2700 mg by mouth daily for 30 days.
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Drug: Letrozole
Aromatase inhibitor
Other Name: Femara Dietary Supplement: Fish Oil Omega-3 free fatty acid
Other Name: Omega-3 |
- Change in levels of aromatase target gene. [ Time Frame: 30 Days ]
- Change in serum levels of PGE2 (prostaglandin E2). [ Time Frame: 30 Days ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- At least 18 years of age.
- Postmenopausal as confirmed in medical history
- Ability to understand the purposes and risks of the study and has signed a written informed consent form approved by the investigator's IRB (Institutional Review Board)/Ethics Committee.
- Estrogen receptor positive breast cancer. Body mass index of 30 or greater.
- Consented for tissue collection on CTRC (Cancer Therapy and Research Center) repository 07-32
Exclusion Criteria:
- Cachexia
- Active systemic illness (infection including viral illnesses such as Hepatitis and HIV)
- Chronic use of NSAIDs (nonsteroidal anti-inflammatory drugs) aspirin or omega-3 free fatty acid supplementation within the last 60 days (defined as greater than or equal to 7 consecutive days)
- Any NSAIDs aspirin or omega-3 free fatty acid supplementation within the last 14 days
- History of medical noncompliance
- Scheduled date of surgical resection that would limit the amount of time taking the intervention to less than 21 days

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): NCT02538484
Contact: Epp Goodwin | 210-450-5798 | ctrcreferral@uthscsa.edu |
United States, Texas | |
Houston Methodist Cancer Center at Texas Medical Center | Active, not recruiting |
Houston, Texas, United States, 77030 | |
Mays Cancer Center, UT Health San Antonio | Recruiting |
San Antonio, Texas, United States, 78229 | |
Contact: Epp Goodwin CTRCReferral@uthscsa.edu | |
Principal Investigator: Andew Brenner, MD |
Principal Investigator: | Andrew Brenner, MD, PhD | Principal Investigator |
Responsible Party: | The University of Texas Health Science Center at San Antonio |
ClinicalTrials.gov Identifier: | NCT02538484 |
Other Study ID Numbers: |
CTMS# 15-2100 HSC20150602H ( Other Identifier: UT Health Science Center Institutional Review Board ) |
First Posted: | September 2, 2015 Key Record Dates |
Last Update Posted: | August 29, 2022 |
Last Verified: | August 2022 |
Breast Neoplasms Neoplasms by Site Neoplasms Breast Diseases Skin Diseases Letrozole Antineoplastic Agents Aromatase Inhibitors |
Steroid Synthesis Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Estrogen Antagonists Hormone Antagonists Hormones, Hormone Substitutes, and Hormone Antagonists Physiological Effects of Drugs |