The TRUST Study - CardioVascular Imaging IMT

NCT02832934 | Completed Phase 4 DMC

• 2 other identifiers: 162/11_5974a
• Study Type: interventional
• Target: 184
• Locations: 1 country
• Sites: 3

Brief Summary

Coronary heart disease (CHD) are the leading causes of mortality and morbidity, particularly with the current context of an aging population. Prospective cohort studies, as well as analyses of pooled individual participant data suggest up to a 60-90% increase in the risk of CHD or HF events among adults with severe SHypo. However, no large randomized controlled trials (RCT) have assessed the impact of thyroid replacement on cardiovascular (CV) imaging outcomes. The goals of this proposal are to address the impact of thyroid replacement on subclinical atherosclerosis. The investigators will conduct a RCT in 185 patients with subclinical hypothyroidism who will be randomly assigned to thyroxine or placebo with an average follow-up of 24 months from baseline. The main outcome will be CV imaging modalities measured by carotid ultrasound at the close-out visit. Assessment of the impact of thyroid replacement on subclinical atherosclerosis within a trial will aid decisions and evidence-based guidelines development to treat a potential modifiable risk factor, such as SHypo.

Conditions

Thyroid Dysfunction; Atherosclerosis; Heart Failure

Keywords

Thyroid Dysfunction; Atherosclerosis; Heart Failure; Cardiovascular Imaging; Randomized Controlled Trial

Outcome Measures

Primary Outcomes (1)

• Carotid Intima Media Thickness as measured by carotid ultrasound

  one year follow up

Study Arms (2)

1

EXPERIMENTAL

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 and \<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: Levothyroxine

2

PLACEBO COMPARATOR

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. Pharmaceutical composition of placebo (100 mg): Lactose monohydrate 66 mg, Maize starch 25 mg, Gelatin 5 mg, Croscarmellose sodium 3.5 mg, Magnesium stearate (vegetable source) 0.5 mg.

Drug: Placebo

Interventions

Levothyroxine DRUG

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 and \<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).

1

Placebo DRUG

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. Pharmaceutical composition of placebo (100 mg): Lactose monohydrate 66 mg, Maize starch 25 mg, Gelatin 5 mg, Croscarmellose sodium 3.5 mg, Magnesium stearate (vegetable source) 0.5 mg.

2

Eligibility Criteria

• Age: 65 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Older Adult (65+)

You may qualify if:

• Community-dwelling patients aged \>= 65 years with subclinical hypothyroidism
• Written informed consent

You may not qualify if:

• Subjects currently under levothyroxine or antithyroid drugs (amiodarone, lithium)
• Recent thyroid surgery or radio-iodine (within 12 months)
• Grade IV NYHA heart failure
• Prior clinical diagnosis of dementia
• Recent hospitalization for major illness or elective surgery (within 4 weeks)
• Terminal illness
• Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption
• Subjects who are participating in ongoing RCTs of therapeutic interventions (including CTIMPs)
• Plan to move out of the region in which the trial is being conducted within the next 2 years (proposed minimum follow-up period)

Sponsors & Collaborators

• Insel Gruppe AG, University Hospital Bern: lead
• University of Lausanne Hospitals: collaborator
• University Hospital, Geneva: collaborator

Study Sites (3)

Cardiology Division, Geneva University Hospitals

Geneva, Canton of Geneva, 1211, Switzerland

Location

Department of General Internal Medicine

Lausanne, Canton of Vaud, 1011, Switzerland

Location

Clinic for General Internal Medicine, Bern University Hospital Bern

Bern, 3010, Switzerland

Location

Related Publications (3)

• Rodondi N, den Elzen WP, Bauer DC, Cappola AR, Razvi S, Walsh JP, Asvold BO, Iervasi G, Imaizumi M, Collet TH, Bremner A, Maisonneuve P, Sgarbi JA, Khaw KT, Vanderpump MP, Newman AB, Cornuz J, Franklyn JA, Westendorp RG, Vittinghoff E, Gussekloo J; Thyroid Studies Collaboration. Subclinical hypothyroidism and the risk of coronary heart disease and mortality. JAMA. 2010 Sep 22;304(12):1365-74. doi: 10.1001/jama.2010.1361.

  PMID: 20858880 BACKGROUND

• Gencer B, Collet TH, Virgini V, Bauer DC, Gussekloo J, Cappola AR, Nanchen D, den Elzen WP, Balmer P, Luben RN, Iacoviello M, Triggiani V, Cornuz J, Newman AB, Khaw KT, Jukema JW, Westendorp RG, Vittinghoff E, Aujesky D, Rodondi N; Thyroid Studies Collaboration. Subclinical thyroid dysfunction and the risk of heart failure events: an individual participant data analysis from 6 prospective cohorts. Circulation. 2012 Aug 28;126(9):1040-9. doi: 10.1161/CIRCULATIONAHA.112.096024. Epub 2012 Jul 19.

  PMID: 22821943 BACKGROUND

• Blum MR, Gencer B, Adam L, Feller M, Collet TH, da Costa BR, Moutzouri E, Dopheide J, Depairon M, Sykiotis GP, Kearney P, Gussekloo J, Westendorp R, Stott DJ, Bauer DC, Rodondi N. Impact of Thyroid Hormone Therapy on Atherosclerosis in the Elderly With Subclinical Hypothyroidism: A Randomized Trial. J Clin Endocrinol Metab. 2018 Aug 1;103(8):2988-2997. doi: 10.1210/jc.2018-00279.

  PMID: 29846630 DERIVED

MeSH Terms

Conditions

Atherosclerosis; Heart Failure

Interventions

Thyroxine

Condition Hierarchy (Ancestors)

Arteriosclerosis; Arterial Occlusive Diseases; Vascular Diseases; Cardiovascular Diseases; Heart Diseases

Intervention Hierarchy (Ancestors)

Thyroid Hormones; Hormones; Hormones, Hormone Substitutes, and Hormone Antagonists; Amino Acids, Aromatic; Amino Acids, Cyclic; Amino Acids; Amino Acids, Peptides, and Proteins

Study Officials

• Nicolas Rodondi, MD MAS

  Clinic for General Internal Medicine, Bern University Hospital Bern

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 4
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 12, 2016
• First Posted: July 14, 2016
• Study Start: June 1, 2016
• Primary Completion: December 1, 2016
• Study Completion: December 1, 2016
• Last Updated: February 28, 2017

Record last verified: 2017-02

Locations

CH (3)