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Taking peoplePhase 4

Continuing ovulation induction with letrozole versus switching to gonadotropins in women with polycystic ovary syndrome (MOVIN-II study)

Key facts

Who runs it
Amsterdam UMC Stichting
Where
Netherlands33 sites in 1 countryChoose a country to see its sites
Status
Recruiting
Phase
Phase 4
People taking part
816 people, planned
Started
1 Aug 2025
Expected to end
1 Jun 2030
Type of study
Interventional
Record updated
4 September 2026

Who can take part

Age
18 years to 64 years
Sex
Women only
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 10 criteriaShow less

Who can take part

  • Couples or single women with childwish
  • Diagnosed PCOS (normogonadotropic anovulation with hyperandrogenaemia (diagnosed clinically by the presence of excessive acne, androgenic alopecia, or hirsutism or by elevated serum levels of total, bioavailable, or free testosterone or dehydroepiandrosterone sulfate) or polycystic ovaries on ultrasound)
  • Age 18-42 years
  • Ovulatory for six cycles on letrozole treatment

Who cannot take part

  • Additional contra-indications reported in the SPC are: Hypersensitivity to the active substance, during pregnancy and breast feeding
  • Total motile sperm count (VCM) < 3 million
  • Major medical morbidity (e.g. poorly controlled Type I or Type II diabetes, known liver disease or dysfunction based on serum liver enzyme testing, renal disease or abnormal serum renal function)
  • Contra-indication to letrozole
  • Known bilateral fallopian tube pathology or occlusion (patients with at least one patent fallopian tube are eligible)
  • Inability to give informed consent

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 64 years old?

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

To determine the clinical efficacy of continuing ovulation induction with letrozole versus switching to ovarian stimulation with gonadotropins, in terms of cumulative live birth rate improvement

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record

Print a page for my doctor

Data and sources

Registry record
Listed on the EU's official list of trials (CTIS).
Fit questions
Built from 2024-519354-36-00, who can take part
Record updated
4 September 2026