Protein boost during the luteal phase to help protect muscle
Official title: Protein Supplementation During Luteal Phase
Run by Sam Houston State University · NCT07843095 · Data updated 2026-11-12
This study tests whether increasing daily protein intake by 12% during the luteal phase can help prevent muscle breakdown in premenopausal women aged 18–35.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 35 Years |
| Sex | Women only |
| Enrollment | 34 (estimated) |
| Sponsor | Sam Houston State University Academic / other |
| Locations | 2 sites (Conroe, Texas and 1 other locations) |
| Status | Recruiting |
| Started | August 4, 2026 |
| Main results expected | December 17, 2026 |
| Study ends | January 29, 2027 |
| Registry record updated | September 25, 2026 |
| Trial ID | NCT07843095 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are healthy, eumenorrheic women aged 18–35 with regular cycles.
✕Probably not a fit
Individuals with irregular cycles, hormonal contraceptive use, or conditions affecting muscle metabolism may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Researchers will compare protein supplementation to placebo over about four months in women with regular menstrual cycles. The aim is to see if a higher protein intake during the luteal phase reduces markers of muscle protein breakdown. The study design uses two groups and focuses on real-world dietary changes during the luteal phase of the menstrual cycle. Findings could inform dietary guidance for preserving skeletal muscle in at-risk populations.
Why it matters
Potential benefit: If successful, participants and others could benefit from guidelines that help preserve skeletal muscle during the luteal phase.
How similar studies have gone: There is limited prior human research directly testing protein supplementation specifically during the luteal phase, making this a relatively novel approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Eumenorrheic * 18 to 35 years old Exclusion Criteria: * Pregnant or lactating (These individuals will not have a regular menstrual cycle) in the previous six months * Vegetarian (protein supplementation is from animal origin) * Contraceptive use, any hormone based contraceptive use for 6 months prior to enrollment * Use of illicit drugs in previous 6 months. * Non-tobacco user * Gasterointestinal disorders, liver disease, infectious disease, cardiovascular, pulmonary, renal, immune, metabolic, cancer * Medications: corticosteroids, chronic NSAIDS, high strength acne, testosterone * Diagonsed PCOS, endometrosis, ovarian insufficency, or other menstrual cycle disorder.
Where it's running
-
SHSU College of Osteopathic Medicine
Conroe, Texas, United States Recruiting -
SHSU Physician's Clinic
Conroe, Texas, United States Not yet recruiting
Study contacts
- Principal investigator: Patrick Davis, PhD — Shsu Com
- Study coordinator: Kyndal Kutac
- Email: kbk016@shsu.edu
- Phone: 979-743-1135
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Postoperative NMES on both thighs with protein during abdominal cancer surgery
This study tests whether neuromuscular electrical stimulation of both thighs after major abdominal cancer surgery helps preserve leg muscle, and whether adding protein drinks improves the effect.
-
Assessing muscle thickness changes in heart failure patients
This study is testing how muscle thickness changes in heart failure patients receiving advanced treatments like heart transplants or assist devices to see how it affects their recovery.
-
Essential amino acid supplementation for patients with femoral fractures
This study is testing if taking essential amino acids for four weeks after surgery can help people with femoral fractures recover better and keep their muscle strength.
-
Combining muscle activation and high-protein nutrition to improve muscle health in ICU patients
This study is testing if giving high-protein nutrition along with muscle activation exercises can help critically ill patients in the ICU keep their muscles strong and recover better.
-
Dietary protein intervention for muscle recovery in heart failure patients
This study is testing if adding more protein to the diet can help heart failure patients keep their muscle mass and recover better.
-
Effects of mTOR Inhibition on Muscle Health in Older Adults
This study is testing if a medication called Rapamune can help older adults with muscle loss get stronger when they do resistance exercises.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.