Eligibility Module

Eligibility Module

The Eligibility Module contains detailed information about who can participate in the clinical trial. This includes eligibility criteria, age restrictions, gender requirements, healthy volunteer status, and study population descriptions, helping researchers understand who is eligible to participate in the study.

Eligibility Module path is as follows:

Study -> Protocol Section -> Eligibility Module

Eligibility Module


Ignite Creation Date: 2025-12-25 @ 2:42 AM
Ignite Modification Date: 2025-12-25 @ 2:42 AM
NCT ID: NCT00000133
Eligibility Criteria: Premature infants of either gender who were eligible for the natural history study had weighed less than 1,251 grams at birth and had survived the first 28 days of life. They had no major ocular or systemic congenital anomalies. Infants who met these criteria and also had a threshold level of ROP (defined as stage 3+ of the International Classification of Retinopathy of Prematurity occupying five or more contiguous or eight cumulative 30 degree sectors \[clock hours\] of stage 3 ROP in zone I or II in the presence of plus disease) could be referred for examination to determine eligibility for entry to the cryotherapy trial.
Healthy Volunteers: False
Sex: ALL
Maximum Age: 1 Year
Study: NCT00000133
Study Brief:
Protocol Section: NCT00000133