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NCT04551807 · ClinicalTrials.gov registry record · Phase 3
Natural Versus Programmed Frozen Embryo Transfer (NatPro)
A Phase 3 study of Pregnancy Related and Preeclampsia, sponsored by JHSPH Center for Clinical Trials.
- Active
- Registry status
- Phase 3
- Development phase
- 788
- Enrollment target
- 15
- Study locations
NCT04551807: Active Phase 3 study of Pregnancy Related and Preeclampsia, sponsored by JHSPH Center for Clinical Trials.
NCT04551807 is a Phase 3 study of Pregnancy Related and Preeclampsia that is active but no longer recruiting, run by JHSPH Center for Clinical Trials. The registered enrollment target is 788 participants, below the 1,955-participant average among 99 other Pregnancy Related trials with a reported enrollment target (60% lower). The trial reports 15 study locations across 13 states. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04551807, a Phase 3 study of Pregnancy Related and Preeclampsia, is active but no longer recruiting, sponsored by JHSPH Center for Clinical Trials.
- ACTIVE NOT RECRUITING
- Registry status
- Phase 3
- Development phase
- 788 participants
- Enrollment target
- 15
- Study locations
Study Summary
NatPro is a two-arm, parallel-group, multi-center, randomized trial in which women undergoing frozen embryo transfer (FET) will be randomized to receive either a modified natural cycle (corpus luteum present) or a programmed cycle (corpus luteum absent).
Primary Outcome
Frequency of preeclampsia, as defined by American College of Obstetricians and Gynecologists (ACOG) guidelines for hypertensive disorders in pregnancy (Obstetrics \& Gynecology 2020;135:e237-e260)
Conditions Studied
Interventions
- PROCEDURE Modified natural cycle
- PROCEDURE Programmed cycle
Study Locations (15)
California
- University of California San Francisco - San Francisco
- Stanford University - Sunnyvale
Maryland
- Johns Hopkins - Baltimore
- Shady Grove Fertility - Rockville
Connecticut
- Yale - Orange
Hawaii
- Fertility Institute of Hawaii - Honolulu
Illinois
- Northwestern University - Chicago
Massachusetts
- Boston IVF - Waltham
New York
- University of Rochester - Rochester
North Carolina
- Atrium Health - Charlotte
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 788 participants |
| Start Date | 2020-09-16 |
| Est. Completion | 2026-04-01 |
| Phase | Phase 3 |
What the registry record for NCT04551807 still lists
NCT04551807 is an interventional study that assigns participants to a tested intervention. The registered 788 participants enrollment target is mid-sized for trials with a published cap, below the 1,955-participant average among 99 other Pregnancy Related trials with a reported enrollment target (60% lower).
The record links to 2 conditions, with Pregnancy Related appearing as the primary indexed condition, and to 2 interventions - of which Modified natural cycle is the first listed.
NCT04551807 lists 15 locations in 13 states (California, Maryland, Connecticut).
Frequently Asked Questions
What is clinical trial NCT04551807 about?
NCT04551807 is a clinical study titled "Natural Versus Programmed Frozen Embryo Transfer (NatPro)". NatPro is a two-arm, parallel-group, multi-center, randomized trial in which women undergoing frozen embryo transfer (FET) will be randomized to receive either a modified natural cycle (corpus luteum present) or a programmed cycle (corpus luteum absent).
What is the current status of trial NCT04551807?
This trial is currently active not recruiting. It is a Phase 3 study. The enrollment target is 788 participants. The study started on 2020-09-16. Estimated completion is 2026-04-01.
What conditions does trial NCT04551807 study?
This clinical trial studies the following conditions: Pregnancy Related, Preeclampsia.
What interventions are being tested in trial NCT04551807?
The interventions under investigation include: Modified natural cycle (PROCEDURE), Programmed cycle (PROCEDURE).
Who is sponsoring clinical trial NCT04551807?
This trial is sponsored by JHSPH Center for Clinical Trials, which has 12 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT04551807 being conducted?
This trial has 15 study locations across California, Connecticut, Hawaii, Illinois, Maryland. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Pregnancy Related
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT04551807's enrollment target sits among peer trials
788 22nd of 99 higher than 78 of 99 other Pregnancy Related trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Pregnancy Related trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
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