Cited by 499Thyroid Disorders and TreatmentsThyroid and Parathyroid SurgeryHormonal and reproductive studies

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism

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Abstract

BACKGROUND: The use of levothyroxine to treat subclinical hypothyroidism is controversial. We aimed to determine whether levothyroxine provided clinical benefits in older persons with this condition. METHODS: We conducted a double-blind, randomized, placebo-controlled, parallel-group trial involving 737 adults who were at least 65 years of age and who had persisting subclinical hypothyroidism (thyrotropin level, 4.60 to 19.99 mIU per liter; free thyroxine level within the reference range). A total of 368 patients were assigned to receive levothyroxine (at a starting dose of 50 μg daily, or 25 μg if the body weight was <50 kg or the patient had coronary heart disease), with dose adjustment according to the thyrotropin level; 369 patients were assigned to receive placebo with mock dose adjustment. The two primary outcomes were the change in the Hypothyroid Symptoms score and Tiredness score on a thyroid-related quality-of-life questionnaire at 1 year (range of each scale is 0 to 100, with higher scores indicating more symptoms or tiredness, respectively; minimum clinically important difference, 9 points). RESULTS: The mean age of the patients was 74.4 years, and 396 patients (53.7%) were women. The mean (±SD) thyrotropin level was 6.40±2.01 mIU per liter at baseline; at 1 year, this level had decreased to 5.48 mIU per liter in the placebo group, as compared with 3.63 mIU per liter in the levothyroxine group (P<0.001), at a median dose of 50 μg. We found no differences in the mean change at 1 year in the Hypothyroid Symptoms score (0.2±15.3 in the placebo group and 0.2±14.4 in the levothyroxine group; between-group difference, 0.0; 95% confidence interval [CI], -2.0 to 2.1) or the Tiredness score (3.2±17.7 and 3.8±18.4, respectively; between-group difference, 0.4; 95% CI, -2.1 to 2.9). No beneficial effects of levothyroxine were seen on secondary-outcome measures. There was no significant excess of serious adverse events prespecified as being of special interest. CONCLUSIONS: Levothyroxine provided no apparent benefits in older persons with subclinical hypothyroidism. (Funded by European Union FP7 and others; TRUST ClinicalTrials.gov number, NCT01660126 .).

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  1. Baumgartner C, 2015, Swiss Med Wkly, 145, w14156
  2. Villar HC, 2007, Cochrane Database Syst Rev, 3, CD003419
  3. Mahoney FI, 1965, Md State Med J, 14, 61
  4. McClure NS, Value Health

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Metadata

Authors
Stott, D. J., Rodondi, N., Kearney, P. M., Ford, I., Westendorp, R. G. J., Mooijaart, S. P., Sattar, N., Aubert, C. E., Aujesky, D., Bauer, D. C., Baumgartner, C., Blum, M. R., Browne, J. P., Byrne, S., Collet, T.-H., Dekkers, O. M., den Elzen, W. P. J., Du Puy, R. S., Ellis, G., Feller, M., Floriani, C., Hendry, K., Hurley, C., Jukema, J. W., Kean, S., Kelly, M., Krebs, D., Langhorne, P., McCarthy, G., McCarthy, V., McConnachie, A., McDade, M., Messow, M., O’Flynn, A., O’Riordan, D., Poortvliet, R. K. E., Quinn, T. J., Russell, A., Sinnott, C., Smit, J. W. A., Van Dorland, H. A., Walsh, K. A., Walsh, E. K., Watt, T., Wilson, R., & Gussekloo, J.
Affiliations
University of Bern (CH)
Venue
New England Journal of Medicine
Published
2017-06-29
Volume
376
Issue
26
Pages
2534-2544
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2604882706
Cited by
490
References
25
Citations by year
2026: 42 · 2025: 28 · 2024: 43 · 2023: 47 · 2022: 54 · 2021: 61 · 2020: 62 · 2019: 61 · 2018: 64 · 2017: 27
FWCI
46.23
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion, other-oa)
  • Research at the University of Copenhagen (University of Copenhagen) (publishedVersion, other-oa)
  • SERVAL (Université de Lausanne) (publishedVersion, other-oa)
  • Archive ouverte UNIGE (University of Geneva) (publishedVersion, other-oa)
  • Arrow@dit (Dublin Institute of Technology) (acceptedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion)
  • LSHTM Research Online (London School of Hygiene and Tropical Medicine) (acceptedVersion)
  • IRIS (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
  • BORIS (University Library Bern) (submittedVersion, other-oa)
  • Cork Open Research Archive (University College Cork, Ireland) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Funders
  • National Science Foundation
  • Velux Stiftung
  • University of Bern
  • Health Research Board (SPHeRE/2013/1)
  • Inselspital, Universitätsspital Bern
  • European Commission (278148, FP7‐HEALTH‐2011)
  • University of Glasgow
  • University College Cork
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (165409, 320 030-150 025, 150025, 278148, 167826, 320030)
  • Universiteit Leiden
  • Radboud Universiteit
  • Gentofte Hospital
  • Schweizerische Herzstiftung (278148)
  • Leids Universitair Medisch Centrum
  • Rigshospitalet
  • Radboud Universitair Medisch Centrum
  • University of California, San Francisco
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (K24AR051895)
  • FP7 Health
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
Keywords
subclinical hypothyroidism, levothyroxine, thyroid hormone replacement, older adults, quality of life, fatigue, thyroid-stimulating hormone, dose adjustment, coronary artery disease, body weight, cost-effectiveness, patient-reported outcomes, health-related quality of life
MeSH terms
Aged, Aged, 80 and over, Double-Blind Method, Fatigue, Female, Humans, Hypothyroidism, Male, Quality of Life, Thyrotropin, Thyroxine, Treatment Failure, Intention to Treat Analysis

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