Combined Oral Contraceptive Pill and Resistance Starch
COR-PCOS
Resistant Starch Usage in Polycystic Ovary Syndrome: Impact on Cardiometabolic Dysfunction and the Gut Microbiome (CORS-PCOS)
2 other identifiers
interventional
100
1 country
1
Brief Summary
This study will enroll women with PCOS to study the effects of first line therapy, oral contraceptive pills, and then either 12 weeks of resistant starch or 12 weeks of placebo to explore if resistant starch improves cardiometabolic parameters or impacts gut dysbiosis compared to placebo.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Jun 2025
Typical duration for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 24, 2025
CompletedFirst Posted
Study publicly available on registry
February 28, 2025
CompletedStudy Start
First participant enrolled
June 10, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
April 1, 2028
February 19, 2026
January 1, 2026
2.8 years
February 24, 2025
February 17, 2026
Conditions
Outcome Measures
Primary Outcomes (7)
Change in LDL-C measure
Baseline and 12 weeks
Change in fasting glucose measure
Baseline and 12 weeks
Change in systolic blood pressure
Baseline and 12 weeks
Change in diastolic blood pressure
Baseline and 12 weeks
Change in BMI
Baseline and 12 weeks
Change in Bifidobacteria abundance measured by quantitative polymerase chain reaction (q-PCR)
Baseline and 12 weeks
Change in Single Chain Fatty Acids (SCFA)
Baseline and 12 weeks
Study Arms (2)
Resistant Starch
ACTIVE COMPARATORwheat dextrin
Placebo
PLACEBO COMPARATORmaltodextrin
Interventions
20 micrograms ethinyl estradiol and desogestrel 0.15mg
participants will take 15 grams per day for 12 weeks
Eligibility Criteria
You may qualify if:
- Women between ages of 18-40 years with BMI greater than or equal to 25 kg/m² to less than or equal to 48 kg/m² diagnosed with PCOS defined by the Rotterdam criteria based on a history of chronic anovulation (8 or fewer periods), androgen excess \[defined as total serum testosterone, free testosterone or a FAI greater than or equal to 90% of the upper limit of normal) or hirsutism (Ferriman-Gallwey score greater than 6 for Hispanics/ Black and greater than or equal to 2 for women of Asian descent)\] and polycystic ovaries as defined by a pelvic ultrasound (20 or more follicles or ovarian vol greater than 10cm3) or elevated AMH.
- For women with more regular bleeding patterns, but who are suspected to be experiencing periodic anovulatory bleeding, a midluteal progesterone (P4) level less than 3ng/dL will be evidence of ovulatory dysfunction and qualify as anovulation.
- Women with only hyperandrogenic PCOS phenotype (hyperandrogenism + one more criteria) will be included to decrease the heterogeneity of the cohort and as metabolic risks are increased in these women compared to normo-androgenic women with PCOS.
- Subjects should be willing to avoid pregnancy for the entire duration of the study.
You may not qualify if:
- Subjects with other causes for irregular menses such as pregnancy, lactation, untreated hypothyroidism, untreated hyperprolactinemia and premature menopause.
- Subjects with late onset adrenal hyperplasia
- Subjects with history of bariatric surgery
- Those who are unable to comply with the study procedures, for instance due to mental illness, substance abuse, or participation in other studies.
- Subjects taking medications that affect weight or metabolic parameters (e.g. lipid lowering medications).
- History of Crohn's disease and ulcerative colitis as well as current use of probiotics and laxatives are excluded.
- Subjects could not have taken antibiotics for at least 3 months prior to randomization visit.
- Subjects with greater than 20 g/day of dietary fiber intake based on pre-screening ASA-24 survey will be excluded.
- Subjects with medical conditions that are contraindications to use of OCP and other medical conditions such as:
- Type 1 or 2 diabetes
- liver disease or dysfunctional liver (AST/ALT greater than 2x normal or a total bilirubin greater than 2.5 mg/dL)
- renal disease (BUN greater than 30 mg/dL or serum creatinine greater than 1.4 mg/dL)
- severe anemia (hemoglobin less than 10 mg/dL)
- alcohol abuse
- poorly controlled hypertension
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Founder's Professor in Women's Health
Study Record Dates
First Submitted
February 24, 2025
First Posted
February 28, 2025
Study Start
June 10, 2025
Primary Completion (Estimated)
April 1, 2028
Study Completion (Estimated)
April 1, 2028
Last Updated
February 19, 2026
Record last verified: 2026-01