A Phase 4 interventional study of Micronized progesterone 200 MG and Micronized Progesterone 100 MG in Turner Syndrome and Primary Ovarian Insufficiency (Poi), sponsored by Children's Mercy Hospital Kansas City. Recruiting at 1 site in United States. Open to female participants aged 12 Years to 20 Years. Per ClinicalTrials.gov, last updated 2026-08-25.
Sponsored by Children's Mercy Hospital Kansas City · Phase 4, Interventional, and Treatment
This is a single-site open label non-randomized study comparing effects of sequential versus continuous use of progesterone supplementation amongst Turner Syndrome (TS) patients with primary ovarian insufficiency (POI) prescribed hormone replacement therapy (HRT).
Prescribed adult dosing* of transdermal or oral estradiol for estrogen replacement therapy.
*Adult dosing of will be defined per published clinical practice guidelines from the 2023 International Turner Syndrome Meeting (i.e. 50-200μg/day of transdermal estradiol, or (i.e. 50-200μg/day of transdermal estradiol or 2-4mg/day oral estradiol).
Exclusion Criteria:
Oral micronized progesterone 200mg for the first 12 days of a 30 to 31-day cycle.
Drug: Micronized progesterone 200 MG
Oral micronized progesterone 100mg daily taken throughout the 30 to 31-day cycle.
Drug: Micronized Progesterone 100 MG
Oral micronized progesterone 200mg for the first 12 days of a 30 to 31-day cycle
Also known as: Sequential
Oral micronized progesterone 100mg daily taken throughout the 30 to 31-day cycle.
Also known as: Continuous
Menstrual bleeding patterns as assessed by the Pictorial Bleeding Assessment Chart (PBAC)
PBAC is one of the most common scoring systems used in the literature to quantify menstrual blood loss (MBL) using a pictorial scoring system, with a higher score representing a larger MBL and a score \>100 qualifying as heavy menstrual bleeding
Time frame: From enrollment to end of treatment at day 90.
Menstrual distress questionnaire (MEDI-Q)
The Menstrual distress questionnaire (MEDI-Q) is a valid and reliable instrument for the assessment of menstrual distress and its impact on psychological well-being. This tool can be utilized in research and clinical settings to comprehensively investigate the impact of menstruation on various populations
Time frame: From enrollment to end of treatment at day 90.
Endometrial thickness.
Endometrial thickness measured by transabdominal pelvic ultrasound.
Time frame: On study day 90 +/- 14 days.
Plan to share: No — Protect confidentiality of individuals with this rare disease (Turner syndrome).
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Children's Mercy Hospital Kansas City