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HypothyroidismPhase 2NCT03627611

Identification of Non-responders to Levothyroxine Therapy

A Phase 2 study testing Levothyroxin and Liothyronine in people with Hypothyroidism and Biomarkers, run by Oslo University Hospital at 1 site in Norway.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to assess differential effects of T4 and T3 on cell and tissue level Read more about this study

Who is it for?
Ages 18 to 65 years, women only
What is being tested?
Levothyroxin and Liothyronine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
69 participants
Where
1 siteNorway
Study dates
14 Aug 2018to 22 Jun 2020
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Poorly regulated hypothyroidism
  • Female aged between 18 and 65 years
  • Written informed consent obtained from the patient according to national regulations

Who cannot join

  • Cardiovascular disease
  • Chronic liver disease
  • Chronic kidney disease
  • Any other endocrinological disease
  • Use of beta blockers
  • Pregnant or lactating females
  • Hormonal substitution other than T3 and T4
  • Known psychiatric disease

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • Oslo University Hospital

    Oslo

Other trials in Norway

About this study

Official title: A Randomized Crossover Study, Examining Differential Effects of Levothyroxine and Liothyronine

The purpose of this study is to assess differential effects of T4 and T3 on cell and tissue level

Read the detailed description

15-20% of the patients with hypothyroidism remain symptomatic, despite adequate thyroxine substitution. Endocrinologists are split in their opinion on combination therapy with T4 and T3 on patients with poorly regulated hypothyroidism. There are no objective means, by which to identify individuals who would benefit from combination therapy. The purpose of this study is to assess differential effects of T4 and T3 on body temperature, metabolism, muscle strength and brain function. The main aim is to try to identify biomarkers reflecting different effects of T4 and T3 on cell and tissue level.

Being tested
Levothyroxin, Liothyronine
Keywords
Thyroxine, Triiodothyronine
Medical subject headings
Hypothyroidism, Endocrine System Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LevothyroxinDrug

    3 months

  • LiothyronineDrug

    3 months

Study groups in NCT03627611
Study groupRoleWhat they receive
T4Active comparatorNot described
Receives: Drug: Levothyroxin
T3ExperimentalNot described
Receives: Drug: Liothyronine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Brown adipose tissue activation

    Thermal imaging of supraclavicular fossa

    Measured: 6 months

Secondary outcomes (9)
  1. Body temperature

    Rectal thermometer

    Measured: 6 months

  2. Energy expenditure

    Indirect calorimetry

    Measured: 6 months

  3. Muscle strength

    Hand grip test

    Measured: 6 months

  4. ThyPRO Questionnaire

    Thyroid patient reported outcome, 13 multi-item scale, range 0-100 with higher scores indicating poorer health status

    Measured: 6 months

  5. Mean levels of thyroid hormones

    TSH, free T4 and free T3

    Measured: 6 months

  6. SF-36 Questionnaire

    Short form health survey, 8 multi-item scale, range 0-100 with higher scores indicating better health status

    Measured: 6 months

  7. Fatigue Questionnaire

    11 item, range 0-33 with higher scores implying higher levels of fatigue

    Measured: 6 months

  8. New biomarkers

    Bone marrow fat, serum and urine

    Measured: 6 months

  9. Micro-RNA, miR-92a

    Serum exosomes

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Aug 2018
  2. Study start14 Aug 2018
  3. Primary completion22 Jun 2020
  4. Study completion22 Jun 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Care provider, Outcomes assessor
Enrolment
69 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03627611
Sponsor's protocol ID
2017/1883 (REK)
Other IDs
2017-003673-34, 2017
Status last verified
Mar 2021
First submitted
25 May 2018
Last updated
17 Mar 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Bjerkreim BA, Hammerstad SS, Gulseth HL, Berg TJ, Lee-Odegard S, Eriksen EF. Thyroid Signaling Biomarkers in Female Symptomatic Hypothyroid Patients on Liothyronine versus Levothyroxine Monotherapy: A Randomized Crossover Trial. J Thyroid Res. 2022 May 4;2022:6423023. doi: 10.1155/2022/6423023. eCollection 2022.

    PubMed 35572853
  • Bjerkreim BA, Hammerstad SS, Gulseth HL, Berg TJ, Omdal LJ, Lee-Odegard S, Eriksen EF. Effect of Liothyronine Treatment on Quality of Life in Female Hypothyroid Patients With Residual Symptoms on Levothyroxine Therapy: A Randomized Crossover Study. Front Endocrinol (Lausanne). 2022 Feb 22;13:816566. doi: 10.3389/fendo.2022.816566. eCollection 2022.

    PubMed 35273566
  • Bjerkreim BA, Hammerstad SS, Gulseth HL, Berg TJ, Lee-Odegard S, Rangberg A, Jonassen CM, Budge H, Morris D, Law J, Symonds M, Eriksen EF. Effect of Liothyronine Treatment on Dermal Temperature and Activation of Brown Adipose Tissue in Female Hypothyroid Patients: A Randomized Crossover Study. Front Endocrinol (Lausanne). 2021 Nov 19;12:785175. doi: 10.3389/fendo.2021.785175. eCollection 2021.

    PubMed 34867829

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Levothyroxin and Liothyronine in people with Hypothyroidism and Biomarkers, run by Oslo University Hospital at 1 site in Norway.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Norway. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Brown adipose tissue activation (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03627611, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Mar 2021.

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