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HypogonadismPhase 4NCT03126656

Effects of Testosterone on Myocardial Repolarization

A Phase 4 study testing Testosterone Undecanoate in people with Hypogonadism and Chronic Heart Failure, run by University of Roma La Sapienza.

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 main of the study is to evaluate the effect of testosterone on ventricular repolarization in patients with mild heart failure, at risk for sudden cardiac death. The electrocardiographic markers studied are QT variability index, the short term variability index. Read more about this study

Who is it for?
Ages 40 to 70 years, men only
Conditions the study is for
Hypogonadism, Chronic Heart Failure
What is being tested?
Testosterone Undecanoate
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
123 participants
Where
No sites listed yet
Study dates
Sep 2016to Apr 2017
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 40 to 70 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age between 40 and 70 aa with blood testosterone values <11.4 nmol / L;
  • Sinus rhythm at 12-lead ECG;
  • Hypogonadism: Total Testosterone <3.5 ng / ml or Free testosterone <250 pmol / L (10 pg / mL) detected (8: 00-11: 00 am) in two successive measurements taken baseline and confirmed at 7 days apart, reduced libido and / or at least two symptoms of hypogonadism evaluated AMS questionnaire
  • previous myocardial infarction and relief echocardiographic fraction of left ventricular ejection greater than or equal to 40% (in chronic heart failure patients);
  • stable clinical and hemodynamic conditions for more than three months;
  • No therapeutic changes in the last 3 months;
  • signing the informed consent.

Who cannot join

  • therapy with testosterone undertaken within 6 months of enrollment or other therapy with steroids undertaken within 3 months thereafter
  • Clinical history of prostate cancer
  • elevated PSA values (adjusted for age)
  • digital rectal exploration (DRE) suggestive of prostate cancer
  • Symptoms of benign prostatic hypertrophy (BPH) with severe obstructive symptoms
  • Hematocrit> 52% at baseline
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  • History of clinically significant hepatic, hematological, renal pathology
  • Clinical history of breast cancer
  • Hyperprolactinemia or other endocrine diseases (empty sella syndrome and pituitary expansive diseases measured by MRI)
  • Age less than 40 or older than 70 years;
  • Severe left ventricular systolic dysfunction (left ventricular ejection fraction <40%) and / or echocardiographic evidence of severe valvular disease;
  • chronic atrial fibrillation or frequent extrasystoles (> 1 extrasystole / min);
  • Presence of complete branch block;
  • Unstable clinical and hemodynamic conditions and / or changes in therapy over the last three months;
  • Presence of prostatic hyperplasia decisive severe obstruction to uroflow study;
  • neoplasms diagnosed and treated less than five years later;
  • Any other condition that medical judgment precludes patient safety

About this study

Official title: Effects of Testosterone on Myocardial Repolarization in Patients With Hypogonadism With/Without Chronic Heat Failure (NYHA Class I-II)

The main of the study is to evaluate the effect of testosterone on ventricular repolarization in patients with mild heart failure, at risk for sudden cardiac death. The electrocardiographic markers studied are QT variability index, the short term variability index.

Read the detailed description

Background:

It has been widely demonstrated in experimental cardiology that estrogen may play a protective role on cardiovascular system, reducing myocardial damage in ischemia-reperfusion injury. Poor are the contributions of the effects of estrogen in the presence of testosterone which also showed potentially cardioprotective effects. Recently it has emerged strong evidence showing that the increase in the repolarization phase of myocardial duration and its temporal dispersion are predictive markers of cardiac death in post-ischemic dilated cardiomyopathy. In addition, the temporal dispersion of the final part of the repolarization phase (Tpeak-Tend) is specifically predictive for sudden cardiac death. In fact, the investigators propose the following plan of experimental study. It will be measured by the duration of the repolarization phase and its basal temporal dispersion and the peak of the heart rate obtained during stress test, in male subjects before and during testosterone replacement therapy.

Patients evaluation baseline, after 1 month and after 6 months of follow up:

Endocrinological evaluation with measurement of body weight, height, BMI calculation and (digital rectal examination) DRE, blood sample.

Laboratory:

Dosage of serum total testosterone, total and free PSA, blood count.

Cardiological evaluation:

  1. Patient's clinical objective examination: measurement of blood pressure and basal heart rate.
  2. Traditional resting electrocardiogram 12-lead ECG in the supine position and 50 to 25 mm / sec, 10 millivolts.
  3. Electrocardiographic single lead computerised registration (DI, D II and D III) of 5 minutes baseline and 5 minutes with controlled breathing (15 breaths / min), using the Spectralink 2011 program, which allows us to identify and calculate the variables object of this study;
  4. Stress cycle electrocardiogram by modified Bruce protocol (25 watts every 2 minutes). The test is interrupted reaching 90% of the maximum heart rate, calculated based on the age of the patient, or to muscular exhaustion. A single lead electrocardiographic recording is started in the 10 minutes period after stress test, using Spectralink 2011 which allows investigators to calculate the variables studied.
  5. trans thoracic echocardiogram with assessment of ejection fraction and any kinetic alterations in contractility and / or valvular heart disease, degree of possible diastolic dysfunction (E / A), size (interventricular septum, posterior wall, end-systolic and end-diastolic diameter in mm) and volumes (end-diastolic and end-systolic volume) of the left and right ventricle sections.
Being tested
Testosterone Undecanoate
Keywords
testosterone, chronic heart failure
Medical subject headings
Hypogonadism

What participants receive

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

  • Testosterone UndecanoateDrug

    just hypogonadic patients enrolled received hormone replacement therapy with testosterone undecanoate 1000 mg/4ml intramuscular (IM) at baseline, after 6 weeks and 12 weeks after the first evaluation

Study groups in NCT03126656
Study groupRoleWhat they receive
Hypogonadic with chronic heart failureExperimentalpatients suffering from mild to moderate heart failure (LVEF ≥ 40%, NYHA I-II), and hypogonadism (plasma testosterone levels <11.4 nmol / L);
Receives: Drug: Testosterone Undecanoate
HypogonadicExperimentalpatients just with hypogonadism (testosterone <11.4 nmol / L) in the absence of documented cardiovascular disease
Receives: Drug: Testosterone Undecanoate
chronic heart failureNo interventionpatients suffering from mild to moderate heart failure (LVEF ≥ 40%, NYHA I-II) with normal testosterone levels(plasma testosterone levels > 11.4 nmol / L), in optimized standard therapy for heart failure

What is being measured

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

  1. QT duration reduction

    Reduction of the absolute QT interval value and its space and time dispersion

    Measured: baseline (before testosterone administration), after 1 month and after 6 months of follow up

Secondary outcomes (1)
  1. hypogonadism treatment

    restoration of normal testosterone blood levels

    Measured: baseline (before testosterone administration), after 1 month and after 6 months of follow up

Timeline

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

  1. First posted24 Apr 2017
  2. Study startSep 2016
  3. Primary completionApr 2017
  4. Study completionApr 2017

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
Other
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
123 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03126656
Sponsor's protocol ID
TECHF001
Status last verified
May 2017
First submitted
19 Apr 2017
Last updated
8 May 2017
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Testosterone Undecanoate in people with Hypogonadism and Chronic Heart Failure, run by University of Roma La Sapienza.

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 7 inclusion and 17 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 8 May 2017. Status can change between updates, so confirm with the study contact before making plans.

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?

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?

QT duration reduction (time frame: baseline (before testosterone administration), after 1 month and after 6 months of follow up). 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 8 May 2017.

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