Iodine Supplement Strategies Between Routine Iodine Supplementation and Selective Iodine Supplementation

Pregnant women who attend at our antenatal clinic will random to 2 groups. First will receive routine iodine supplementation. The other will receive iodinated pill or only iron supplementation base on their urine iodine status.

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Key information

Conditions

Pregnancy Related Iodine Deficiency

Sex eligibility

Female

Study type

Interventional

Phase

Not applicable

Primary location

Kuntharee Traisrisilp

Chiang Mai, 50200, Thailand

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

first visit for antenatal care in the first trimester
singleton pregnancy
delivered at Maharaj Nakorn Chiangmai Hospital

Exclusion criteria

thyroid disease which diagnosed before pregnancy or currently
history of thyroid gland surgery or iodine ablation therapy
received iodine supplement before pregnancy
received any medication for thyroid disease treatment, within 6 weeks postpartum women or breast feeding period
family history of thyroid disease
having underlying disease or contraindication which cannot received iodine supplement
loss follow-up or incomplete data.

Treatment and study plan

Triferdine

Dietary Supplement

Triferdine 1 tablet daily Start from 14 weeks of gestation until delivery

Triferdine/Ferli-6

Dietary Supplement

For the participants assigned to this group, urine iodine level will be checked first.

For participants with normal urine iodine level, Ferli-6 1 tab daily will be given.

For those with low urine iodine level, Triferdine 1 tab daily will be given. Medication will be started from 14 weeks of gestation until delivery.

Primary outcomes

iodine status

Time frame: at delivery

mean urine iodine

Sponsors and collaborators

Lead sponsor

Chiang Mai University

Other

Registry information

Official study title

The Study to Compare Iodine Supplement Strategies Between Routine Iodine Supplementation and Selective Iodine Supplementation

Important dates

Study start: 2017
Primary completion: 2018
Study completion: 2018
First posted: Mar 13, 2017
Registry last updated: Mar 18, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed