CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 44 enrolled
Drug / intervention
Experimental intervention: 8-5-2% oxygen gradient concentration in the incubatorother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05898178
NCT05898178N/ACompleted

The Effect of Constant 5% Versus Gradient 8%, 5%, 2% Oxygen Concentration on the Development of Sibling Human Embryos in Vitro

University Medical Centre Maribor·interventional·Posted Jun 12, 2023·Updated Jun 8, 2025

In Brief

A clinical study evaluating Experimental intervention: 8-5-2% oxygen gradient concentration in the incubator for Embryonic Development and 2 related conditions. Completed, enrolled 44 participants across 1 site.

Detailed Summary

The purpose of this study is to investigate the development of human embryos in vitro under two different oxygen concentrations; a static 5% during all five days of culture or under an oxygen gradient, starting with 8% from day-0 to day-3, continuing with 5% on day-3 and following with 2% of oxygen from the end of day-3 to day-5.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesSlovenia
Collaborators--

Timeline

N/ACompletedFinished
20222023202420252026
First PostedJun 12, 2023
Enrollment StartJan 1, 2022
Primary CompletionJan 1, 2023
TodayJul 2, 2026
Enrollment to primary: 1 yearPosted 3.1 years ago

Interventions

Experimental intervention: 8-5-2% oxygen gradient concentration in the incubatorother

After oocyte retrieval and insemination, half of a given patient's embryos will be randomly allocated in an incubator set at a gradient of oxygen tension (8-5-2%). The embryos will remain in the incubator until their developmental assessments on day 5.