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Controlled Diet for Reproductive Hormone Levels (LEAP Trial)

N/A
Recruiting
Led By Ann E Caldwell, PhD
Research Sponsored by University of Colorado, Denver
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Age 18-30
Be between 18 and 65 years old
Must not have
Significant medical issues (e.g., cardiovascular disease or diabetes)
Polycystic ovary syndrome (current or past diagnosis)
Timeline
Screening 3 weeks
Treatment Varies
Follow Up baseline, ~4-weeks, ~8-weeks (visits timed to to days 1-5 of the menstrual cycle)
Awards & highlights
No Placebo-Only Group

Summary

This trial studies how diet affects reproductive hormone levels, with 2 different levels of energy intake.

Who is the study for?
This trial is for women aged 18-30 with a BMI of 18.5-24.9 or 30-45, who have had regular menstrual cycles and stable weight recently. It's not for those on hormonal birth control, pregnant, planning pregnancy soon, diagnosed with PCOS, exercising regularly, or with significant health issues like heart disease or diabetes.
What is being tested?
The LEAP Study is examining how reproductive hormones in young women respond to eating a controlled diet that's either balanced in energy or has low energy intake over five days.
What are the potential side effects?
Since the intervention involves dietary changes only and does not include medication or invasive procedures, side effects are expected to be minimal but may include feelings of hunger or fatigue due to low energy intake.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am between 18 and 30 years old.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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I have serious health issues like heart disease or diabetes.
Select...
I have been diagnosed with polycystic ovary syndrome.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~baseline, ~4-weeks, ~8-weeks (visits timed to to days 1-5 of the menstrual cycle)
This trial's timeline: 3 weeks for screening, Varies for treatment, and baseline, ~4-weeks, ~8-weeks (visits timed to to days 1-5 of the menstrual cycle) for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Change from baseline in stimulated pituitary function, as measured by Luteinizing hormone (LH) area under the curve (AUC) over two hours following pituitary stimulation with a physiologic bolus intravenous dose of gonadorelin acetate

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

2Treatment groups
Experimental Treatment
Active Control
Group I: Low energy availability metabolic diet (5-days)Experimental Treatment1 Intervention
20 kcal/kg of FFM/day; 28% fat, 15% protein, 57% carbohydrate
Group II: Energy balanced metabolic diet (5-days)Active Control1 Intervention
45 kcals/kg of fat free mass \[FFM\]/day; 28% fat, 15% protein, 57% carbohydrate

Find a Location

Who is running the clinical trial?

University of Colorado, DenverLead Sponsor
1,806 Previous Clinical Trials
2,822,852 Total Patients Enrolled
Ann E Caldwell, PhDPrincipal InvestigatorUniversity of Colorado Anschutz School of Medicine
1 Previous Clinical Trials
21 Total Patients Enrolled

Media Library

Low energy availability metabolic diet (5-days) Clinical Trial Eligibility Overview. Trial Name: NCT05808647 — N/A
Hypogonadotropic Hypogonadism Research Study Groups: Energy balanced metabolic diet (5-days), Low energy availability metabolic diet (5-days)
Hypogonadotropic Hypogonadism Clinical Trial 2023: Low energy availability metabolic diet (5-days) Highlights & Side Effects. Trial Name: NCT05808647 — N/A
Low energy availability metabolic diet (5-days) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05808647 — N/A
~10 spots leftby Nov 2025