# BEst Size for Ovulation Triggering in Poseidon 4 Patients (BEST 4 Study)

> **NCT06433518** · — · RECRUITING · sponsor: **Centrum Clinic IVF Center** · enrollment: 200 (estimated)

## Conditions studied

- Fertilization
- Fertilization in Vitro

## Interventions

- **OTHER:** Ovulation Trigger Timing Based on Leading Follicle Size in POSEIDON Group 4 IVF Patients

## Key facts

- **NCT ID:** NCT06433518
- **Lead sponsor:** Centrum Clinic IVF Center
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2026-03-15
- **Primary completion:** 2026-12-01
- **Final completion:** 2026-12-30
- **Target enrollment:** 200 (ESTIMATED)
- **Last updated:** 2026-03-19


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06433518

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06433518, "BEst Size for Ovulation Triggering in Poseidon 4 Patients (BEST 4 Study)". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT06433518. Licensed CC0.

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