# Controlled Ovarian Stimulation Versus Modified Natural Cycles in Poor Responders

> **NCT04487925** · PHASE4 · RECRUITING · sponsor: **University Hospital, Ghent** · enrollment: 208 (estimated)

## Conditions studied

- Ovarian Reserve
- Poor Responders
- IVF

## Interventions

- **DRUG:** A single Gonadotropin-Releasing Hormone (GnRH) antagonist corifollitropin alfa (CFA) stimulation
- **DRUG:** Up to three modified natural cycles with Follitropin beta.

## Key facts

- **NCT ID:** NCT04487925
- **Lead sponsor:** University Hospital, Ghent
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2022-01-25
- **Primary completion:** 2024-09-30
- **Final completion:** 2024-12-31
- **Target enrollment:** 208 (ESTIMATED)
- **Last updated:** 2024-05-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04487925

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04487925, "Controlled Ovarian Stimulation Versus Modified Natural Cycles in Poor Responders". Retrieved via AI Analytics 2026-06-26 from https://api.ai-analytics.org/clinical/NCT04487925. Licensed CC0.

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