Completed PHASE4 INTERVENTIONAL 2-arm NCT00638092

A Randomised Controlled Trial of Iodide Supplementation in Preterm Infants Follow-up at 2 Years (I2S2)

A Randomised Controlled Trial of Iodide Supplementation in Preterm Infants With Follow-up at 2 Years

Sponsor: National Institute for Health Research, United Kingdom

Interventions Sodium Chloride sodium iodide

Updated 6 times since 2017 Last updated: May 15, 2015 Started: Mar 31, 2010 Primary completion: Apr 30, 2015 Completion: May 31, 2015

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A PHASE4 clinical study on Transient Hypothyroxinemia, this trial is completed. The trial is conducted by National Institute for Health Research, United Kingdom and has accumulated 6 data snapshots since 2010. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

6 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE4
Sep 2024 — Sep 2025 [monthly]

Completed PHASE4
Jul 2024 — Sep 2024 [monthly]

Completed PHASE4
Jan 2021 — Jul 2024 [monthly]

Completed PHASE4
Jun 2018 — Jan 2021 [monthly]

Completed PHASE4

▶ Show 1 earlier version

Jan 2017 — Jun 2018 [monthly]

Completed PHASE4

First recorded

Mar 2010

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

National Institute for Health Research, United Kingdom
University of Dundee
University of Oxford

Data source: University of Oxford

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

Belfast, United Kingdom , Birmingham, United Kingdom , Coventry, United Kingdom , Derby, United Kingdom , Dundee, United Kingdom , Glasgow, United Kingdom , Kilmarnock, United Kingdom , Leicester, United Kingdom , Londonderry, United Kingdom , Middlesbrough, United Kingdom and 7 more locations