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HealthyPhase 4NCT01849861

Cardiopulmonary Capacity in Elderly With Different Ranges of Serum Thyroid Stimulating Hormone

A Phase 4 study testing Methimazole in people with Healthy, run by Universidade Federal do Rio de Janeiro at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The purpose of this study is to correlate in an elderly population (≥ 65 years), the different levels of serum TSH, with cardiopulmonary capacity, quality of life, depressive symptoms and cognition. Read more about this study

Who is it for?
Ages 65 years and olderHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Methimazole
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
1 siteBrazil
Study dates
Sep 2011to Sep 2014
Phase
Phase 4
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 65 years and older
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Age ≥ 65 years.
  • Healthy Men and women
  • Registration at the University Hospital Clementino Fraga Filho (HUCFF).

Who cannot join

  • Hypothalamic-pituitary disease
  • Congestive cardiac insufficiency, chronic renal failure, acute renal failure, stroke, chronic obstructive pulmonary disease, asthma, cancer and / or cirrhosis.
  • Diseases of the aorta, peripheral vascular disease, coronary artery disease (including angina, history of prior myocardial infarction or angina, or history of cardiac catheterization and angioplasty).
  • Use of corticosteroids, amiodarone or dopamine, as well as any drug that interferes with the levels of thyroid hormones and / or thyroid function.
  • Use of drugs that interfere with autonomic adaptation mechanism, such as beta-blockers, prolopa and calcium channel blockers. Hypertensive patients without use of such drugs may be included.
  • Patients bedridden, wheelchair or with physical limitations (joint and muscle) to prevent the standing position for at least 20 minutes and the realization of the cardiopulmonary exercise test.
  • Obesity with a body mass index equal or greater than 35 kg/m2.

Trial locations and contacts

1 site in 1 country.

Dhiãnah SO Chachamovitz contact

+552126203063

dhianahsantini@gmail.com

Patrícia de Fátima S Teixeira contact

+552125622748

pfatima@hucff.ufrj.br

Brazil1 site, 1 recruiting
  • Universidade Federal do Rio de Janeiro

    Rio de Janeiro, Rio de Janeiro, 21941-590

    Dhiãnah SO Chachamovitz, MD, +552126203063, dhianahsantini@gmail.com

    Patrícia de Fátima S Teixeira, MD, PhD, +552125622748, pfatima@hucff.ufrj.br

    Recruiting

Other trials in Brazil

About this study

Official title: Cardiopulmonary Capacity In Different Quartiles Ranges Of Reference For Serum Thyroid Stimulating Hormone (TSH): Sectional Evaluation And Effect Of The Use Of Methimazole In Elderly Population

The purpose of this study is to correlate in an elderly population (≥ 65 years), the different levels of serum TSH, with cardiopulmonary capacity, quality of life, depressive symptoms and cognition. And assess whether the increased serum TSH to the upper half of the normal range, through the use of antithyroid drugs, is associated with improvements in these parameters.

Read the detailed description

Specific Objectives:

Describe the cardiopulmonary capacity in elderly people with 65 years old or more, in different quartiles of normal range for serum TSH.

Assess the quality of life, mini mental health status and depression scale in seniors aged 65 or older, in different quartiles of normal range for serum TSH.

Quantify the possible effects related to the use of antithyroid drugs in cardiopulmonary capacity, quality of life, mini mental health status and depression scale in elderly people aged 65 or more, with the initial serum TSH at the lower limit of the normal range (1.0 milli-International unit/ml) (mIU/ml).

Justification:

Despite evidence that in the elderly population the mean serum TSH tends to be higher as compared to younger adults, there isn't a curve of normal range of TSH for this specific population (more shifted to the right, which would increase the number of diagnoses for subclinical hyperthyroidism).

Thus, elderly individuals, even when classified as euthyroidism, but presenting TSH in the normal lower range, may present at a greater risk of cardiovascular disease and therefore, may have indication for treatment.

These findings motivate and justify this study design, which may have great clinical relevance in the scientific community for its originality, and important clinical applicability.

Materials and Methods:

If the patient agrees to participate, an appointment will be scheduled at HUCFF that will be made: anamnesis, review of medical records, clinical examination and signing the Informed Consent Form (ICF).

Secondly, they will be guided and directed to: laboratory analysis for serum dosage of TSH and free thyroxine (FT4), cardiopulmonary exercise testing and application of the questionnaires of quality of life, mini mental health status and depression.

The study comprised of two parts:

Phase 1: Sectional:

  • Analysis of variables.
  • Sample as a whole and according to the quartiles of the reference range for serum TSH, with comparisons between groups.
  • 1st Quartile: TSH: 0.4 to 1.0 mIU / ml.
  • 2nd Quartile: TSH: 1.0 to 2.0 mIU / ml.
  • 3rd Quartile: TSH: 2.0 to 3.0 mIU / ml.
  • 4th Quartile: TSH: 3.0 to 4.0 mIU / ml Phase 2: Clinical uncontrolled. Patients with serum TSH initially on the 1st. Quartile (TSH: 0.4 to 1.0 mIU / ml) will receive treatment with Methimazole (initial dose of 5mg/day) with the goal of raising the TSH values to range between 2.0 and 4.0 mIU / ml (the half upper range of normal).

After six months with TSH in the target range (2.0 and 4.0 mIU / ml), these patients will be subjected to the same examination protocol performed at baseline and assessed to the effects of treatment on outcome variables.

Variables considered in this study:

  • TSH and FT4
  • Questionnaire of Quality of life for older adults (WHOQOL-OLD)
  • Mini-Mental State Examination
  • Geriatric Depression Scale
  • Cardiopulmonary exercise testing - cardiopulmonary capacity Variables to be analyzed at rest, peak of the exercise and recovery: Heart rate, systolic blood pressure and diastolic blood pressure.

Variables to be assessed at peak effort: pulmonary ventilation, oxygen consumption, carbon dioxide production, ventilatory equivalent for oxygen and carbon dioxide, respiratory quotient, oxygen pulse, fraction of expired oxygen and carbon dioxide.

Conditions
Healthy
Being tested
Methimazole
Keywords
Cardiopulmonary Capacity, Ranges of TSH, Elderly Population

What participants receive

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

  • MethimazoleDrug

    Also called a single group

    Patients with serum TSH initially on the 1st. Quartile (TSH: 0.4 to 1.0 mIU / ml) will receive treatment with Methimazole (initial dose of 5mg/day) with the goal of raising the TSH values to range between 2.0 and 4.0 mIU / ml (the half upper range of normal).

    After six months with TSH in the target range (2.0 and 4.0 mIU / ml), these patients will be subjected to the same examination protocol performed at baseline and assessed to the effects of treatment on outcome variables.

    Variables considered in this study:

    • TSH and FT4
    • Questionnaire of Quality of life for older adults (WHOQOL-OLD)
    • Mini-Mental State Examination
    • Geriatric Depression Scale
    • Cardiopulmonary exercise testing - cardiopulmonary capacity
Study groups in NCT01849861
Study groupRoleWhat they receive
Methimazole,ExperimentalPatients with serum TSH initially on the 1st. Quartile (TSH: 0.4 to 1.0 mIU / ml) will receive treatment with Methimazole (initial dose of 5mg/day) with the goal of raising the TSH values to range between 2.0 and 4.0 mIU / ml (the half upper range of normal). After six months with TSH in the target range (2.0 and 4.0 mIU / ml), these patients will be subjected to the same examination protocol performed at baseline and assessed to the effects of treatment on outcome variables. Variables considered in this study: * TSH and FT4 * Questionnaire of Quality of life for older adults (WHOQOL-OLD) * Mini-Mental State Examination * Geriatric Depression Scale * Cardiopulmonary exercise testing - cardiopulmonary capacity
Receives: Drug: Methimazole

What is being measured

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

  1. Correlate in a population of more than 65 years old, the different levels of serum TSH, with cardiopulmonary capacity and these effects from baseline after treatment with antithyroid drugs

    Describe the cardiopulmonary capacity in elderly health population of 65 years old or more, in different quartiles of normal range for serum TSH.

    • Assess the outcome in the cardiopulmonary capacity in seniors aged 65 years old or more, in different quartiles of normal range for serum TSH.
    • Quantify the possible changes from baseline related to the use of antithyroid drugs in cardiopulmonary capacity in patients aged 65 or more, with the initial serum TSH at the lower limit of the normal range (1.0 mIU/ml)to values of TSH more than 2.0mUI/ml for six months.

    Measured: six months

Secondary outcomes (3)
  1. Assess the quality of life in seniors aged 65 years old or older, in different quartiles of normal range for serum TSH and these changes from baseline after use of methimazole

    Describe the quality of life in elderly health population of 65 years old or more, in different quartiles of normal range for serum TSH.

    • Assess the outcome in quality of life in seniors aged 65 olde or more, in different quartiles of normal range for serum TSH
    • Quantify the possible changes from baseline related to the use of antithyroid drugs in quality of life in patients aged 65 or more, with the initial serum TSH at the lower limit of the normal range (1.0 mIU/ml)to values of TSH more than 2.0mUI/ml for six months..

    Measured: six months

  2. Assess the mini mental health status in seniors aged 65 years old or older, in different quartiles of normal range for serum TSH and these changes from baseline after use of methimazole

    Describe the mini mental health status in elderly health population of 65 years old or more, in different quartiles of normal range for serum TSH.

    • Assess the outcome in mini mental health status in seniors aged 65 olde or more, in different quartiles of normal range for serum TSH.
    • Quantify the possible changes from baseline related to the use of antithyroid drugs in mini mental health status in patients aged 65 or more, with the initial serum TSH at the lower limit of the normal range (1.0 mIU/ml)to values of TSH more than 2.0mUI/ml for six months.

    Measured: six months

  3. Assess the depression scale in seniors aged 65 years old or older, in different quartiles of normal range for serum TSH and these changes from baseline after use of methimazole

    Describe the depression scale in elderly health population of 65 years old or more, in different quartiles of normal range for serum TSH.

    • Assess the outcome in depression scale in seniors aged 65 olde or more, in different quartiles of normal range for serum TSH.
    • Quantify the possible changes from baseline related to the use of antithyroid drugs in the depression scale in patients aged 65 years old or more, with the initial serum TSH at the lower limit of the normal range (1.0 mIU/ml)to values of TSH more than 2.0mUI/ml for six months..

    Measured: six months

Timeline

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

  1. First posted9 May 2013 (estimated)
  2. Study startSep 2011
  3. Primary completionJul 2014 (estimated)
  4. Study completionSep 2014 (estimated)

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 4
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01849861
Sponsor's protocol ID
idosos01
Status last verified
May 2013
First submitted
23 Apr 2013
Last updated
13 May 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Methimazole in people with Healthy, run by Universidade Federal do Rio de Janeiro at 1 site in Brazil.

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 7 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: status not confirmed, as of the sponsor's last update on 13 May 2013. 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 Brazil. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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

Are results available for this study?

Results are not available in the source record.

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

Contact Dhiãnah SO Chachamovitz (+552126203063, dhianahsantini@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Correlate in a population of more than 65 years old, the different levels of serum TSH, with cardiopulmonary capacity and these effects from baseline after treatment with antithyroid drugs (time frame: six months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 13 May 2013.

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