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HealthyPhase 1/2NCT03098433

Effects of Liothyronine on Energy Expenditure and Cardiovascular Function

A Phase 1/2 study testing Liothyronine and Levothyroxine in people with Healthy, run by Virginia Commonwealth University at 1 site in United States.

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

This study will assess the short term effects of a single dose of liothyronine on the cardiovascular system and energy expenditure Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Liothyronine and Levothyroxine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
22 participants
Where
1 siteUnited States
Study dates
20 Oct 2017to 24 Jun 2019
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • BMI >20<30 kg/m2
  • TSH >0.5<5.0 mcIU/mL
  • Negative TPO antibodies

Who cannot join

  • Pregnancy
  • Use of prescription drugs
  • Diabetes mellitus
  • Coronary artery disease
  • Hypertension
  • Anemia
  • Renal insufficiency
  • Liver disease or ALT >2.5 x the upper laboratory reference limit

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Virginia Commonwealth University

    Richmond, Virginia, 23298

Other trials in United States

About this study

This study will assess the short term effects of a single dose of liothyronine on the cardiovascular system and energy expenditure

Conditions
Healthy
Being tested
Liothyronine, Levothyroxine, Placebos

What participants receive

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

  • LiothyronineDrug

    Single dose

  • LevothyroxineDrug

    Active comparator

  • PlacebosDrug

    Placebo

Study groups in NCT03098433
Study groupRoleWhat they receive
LiothyronineExperimentalEach participant will receive a single dose of lithyronine
Receives: Drug: Liothyronine
LevothyroxineActive comparatorEach participant will receive a single dose of levothyroxine
Receives: Drug: Levothyroxine
PlaceboPlacebo comparatorEach participant will receive a single dose of placebo
Receives: Drug: Placebos

What is being measured

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

  1. Cardiac Output

    Cardiac output measured by Echocaridogram, Difference in Stroke Volume Pre- and Post- Drug Administration

    Measured: five hours

Secondary outcomes (1)
  1. Energy Expenditure

    Energy expenditure measured by Whole-Room Indirect Calorimeter, Difference in energy Expenditure Pre- and Post- Drug Administration Kcal

    Measured: five hours

Timeline

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

  1. First posted31 Mar 2017
  2. Study start20 Oct 2017
  3. Primary completion24 Jun 2019
  4. Study completion24 Jun 2019

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 1/2
Primary purpose
Other
Allocation
Randomised
Intervention model
Crossover
Model description
double blind, crossover
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03098433
Sponsor's protocol ID
HM20005777
Status last verified
Mar 2021
First submitted
7 Mar 2017
Last updated
26 Mar 2021
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Chen S, Wohlford GF, Vecchie' A, Carbone S, Yavuz S, Van Tassell B, Abbate A, Celi FS. Acute Effects of Liothyronine Administration on Cardiovascular System and Energy Metabolism in Healthy Volunteers. Front Endocrinol (Lausanne). 2022 Feb 28;13:843539. doi: 10.3389/fendo.2022.843539. eCollection 2022.

    PubMed 35295986

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Liothyronine and Levothyroxine in people with Healthy, run by Virginia Commonwealth University at 1 site in United States.

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 26 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 United States. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Yes. Results are posted in the registry (first posted 26 Mar 2021). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Cardiac Output (time frame: five hours). 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 NCT03098433, which also lists 1 linked publication.

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 26 Mar 2021.

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