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Comparison of L-Thyroxine plus Liothyronine with L-thyroxine alone in post-surgical hypothyroidism

A Randomized Controlled Trial comparing L-Thyroxine plus Liothyronine with L-thyroxine alone in post-surgical hypothyroidism

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
CRIS
Registry ID
KCT0002600
Enrollment
200
Registered
2017-12-15
Start date
2018-04-27
Completion date
Unknown
Last updated
2019-03-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Drug : T4 (levothyroxine) monotherapy (active ontrol) vs. T4(levothyroxine)/T3 (tetronine) combination therapy : Study drug - T4 7.5mcg as one tablet /T3 2.5mcg as one tablet(which have same shape an
T4 75mcg+study drug T4 7.5mcg B vs. T4 75mcg + study drug T3 2.5mcg B T4 100mcg -&gt
T4 85.7mcg + study drug T4 7.5mcg B vs. T4 85.7mcg + study drug T3 2.5mcg B T4 114mcg -&gt
T4 100mcg + study drug T4 7.5mcg B vs. T4 100mcg + study drug T3 2.5mcg B T4 125mcg -&gt
T4 100mcg + study drug T4 7.5mcg 1T at morning - 15mcg(2T) at evening vs. T4 100mcg + study drug T3 2.5mcg 1T at morning - 5mcg (2T) at evening T4 150mcg -&gt
T4 125mcg + study drug T4 7.5mcg 1T at morning - 15mcg(2T) at evening vs. T4 125mcg + study drug T3 2.5mcg 1T at morning - 5mcg (2T) at evening : These study durgs will be prescribed for 3 months

Sponsors

Asan Medical Center
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: s/p Total thyroidectomy d/t thyroid cancer Postoperative period 2yr-10yr no evidence of residual disease : non-stimulated Tg <0.2 ng/mL, US (-) Normalized thyroid function (TSH 0.1-5.0 mIU/L) with daily T4 dose ranging from 85.7mcg -150mcg : stable thyroid function in repeated thyroid function test over 6 months interval one of subjective persistent symptoms below compared to preoperative period [1] • fatigue or lethargic (0-4) • body weight gain (0-4) • generalized body pain or ache (0-4) • clumsiness (0-4) ? (These symptoms should be persistent at least 6 months recently. ? Patients with scores = 2 for one of each symptom considered to have subjective symptoms.)

Exclusion criteria

Exclusion criteria: Person who can not fill in the questionnaire by oneself Pregnancy Uncontrolled heart/liver/kidney disease, anemia (Hb <11) Psychiatric ds/mood disorder Other cancers, DM on insulin injection, dyslipidemia on statin Previous history of combination therapy, within 1 year Underlying autoimmune thyroid ds (TPO+ or lymphocytic thyroiditis in pathology)

Design outcomes

Primary

MeasureTime frame
Changes in the scores of quality of life questionnaires from the 1st visit to the last visit : Multidimensional fatige inventory, short form 36-item health survey

Secondary

MeasureTime frame
Changes in self-reported symptoms (5-point scale), Patient preference, Changes in biochemical parameters, Assessment of changing trend of scores from quality of life by questionnaires

Countries

Korea, Republic of

Contacts

Public ContactMin Ji Jeon

Asan Medical Center

mj080332@gmail.com+82-2-3010-1317

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026