The Effect of Thyroid Hormone Therapy on Muscle Mass and Function in Older Adults With Subclinical Hypothyroidism

NCT04354896 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 322

Last updated 2023-05-18

No results posted yet for this study

Summary

Subclinical hypothyroidism (SCH) is common among the elderly population and has been associated with neuromuscular impairment. Muscular symptoms such as weakness, myalgia and cramps are more often reported by SCH patients compared to euthyroid controls. Sarcopenia is the age-related loss of muscular mass and function and its assessment includes three dimensions (muscle quantity, muscle strength and physical performance). To date, evidence is lacking about the effect of thyroid hormone replacement on skeletal muscle impairment in SCH patients. The aim of the study is therefore to evaluate the impact of levothyroxine therapy on sarcopenia measures in SCH. This is a nested substudy within two large international multicenter randomized controlled trial of elderly participants with SCH (TRUST Study, clinicaltrials.gov ID NCT 01660126; and IEMO Study, Netherland Trial Register ID NTR3851). Those two trials shared a very similar study design. The cohorts will therefore be analyzed as a single study population.

Conditions

Interventions

DRUG

Levothyroxin

The intervention will start with Levothyroxine 50 mcg daily (reduced to 25 mcg in subjects \<50 kg of body weight or if known coronary heart disease - previous myocardial infarction or symptoms of angina pectoris) vs. matching placebo; at 3 months, if the serum TSH level is \<0.4 mU/L, dose will be reduced by 25 mcg; TSH 0.4 to 4.6 mU/L, no change to dose; TSH ≥4.6 mU/L, additional 25 mcg. The process will be repeated at 12 months, then annually; mock titration will be performed in the placebo group. The maximum possible dose of Levothyroxine which will be prescribed is 150 mcg (after 4 increments of 25 mcg at 3 months, 1, 2, 3 years; from the starting dose of 50 mcg).

DRUG

Placebo

Control patients will obtain a placebo pill of the same characteristics as the intervention drug, and mock titration will be carried out identically to the intervention drug.

Sponsors & Collaborators

  • University of Lausanne Hospitals

    collaborator OTHER
  • Leiden University Medical Center

    collaborator OTHER
  • Insel Gruppe AG, University Hospital Bern

    lead OTHER

Principal Investigators

  • Nicolas Rodondi, MD MAS · BIHAM UniBern

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-05-31
Primary Completion
2018-05-04
Completion
2018-05-04

Countries

  • Netherlands
  • Switzerland

Study Locations

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Entities

Drugs
Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04354896 on ClinicalTrials.gov