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CompletedNCT03393728Updated Jan 8, 2018

Heart Rate Variability and Hyperthyroidism: Evaluation of the Short-term Effects of Propanolol

A Phase 4 interventional study of Propanolol in Hyperthyroidism, sponsored by Yaounde Central Hospital. Completed. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2018-01-08.

Sponsored by Yaounde Central Hospital · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 9 years 3 months after the study started (first participant enrolled Sep 2008, registered Dec 2017).
Phase
Phase 4
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
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Study summary

Objective: The aim of our study was to evaluate the short term effects of Propanolol on heart rate variability in patients with hyperthyroidism.

Design: In ten patients newly diagnosed as having hyperthyroidism and naïve of all treatment specific for hyperthyroidism, we evaluated the short term effects of Propanolol on heart rate variability (HRV).

Methods: We measured heart rate variability by power spectral analysis during 2 hours of rest and during Ewing's tests before and after the administration of Propanolol 40mg/12 hours orally for 72 hours.

Read the detailed description

Objective: The aim of our study was to evaluate the short term effects of Propanolol on heart rate variability in patients with hyperthyroidism.

Design: In ten patients newly diagnosed as having hyperthyroidism and naïve of all treatment specific for hyperthyroidism, we evaluated the short term effects of Propanolol on heart rate variability (HRV).

Methods: We measured heart rate variability by power spectral analysis during 2 hours of rest and during Ewing's tests before and after the administration of Propanolol 40mg/12 hours orally for 72 hours. Other outcomes included mean heart rate, mean R-R interval during 2-hour rest.

The study questions the systematic adjunction of Propanolol early in the treatment of hyperthyroidism.

02

Conditions studied

  • Hyperthyroidism

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Keywords

  • hyperthyroidism
  • heart rate variability
  • propanolol
  • Africa
03

In context

Hyperthyroidism

112 studies on the registry are indexed under Hyperthyroidism; 27 are open to participants now.

This study's enrollment of 10 is below the median of 60 across 61 interventional studies indexed under Hyperthyroidism.

Browse Hyperthyroidism studies →

Lead sponsor

Yaounde Central Hospital is the lead sponsor of 22 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • consenting patients referred to or diagnosed at the National Centre of Obesity of the Yaounde Central Hospital as having hyperthyroidism
  • naïve of all treatment specific for hyperthyroidism.
  • aged 18-70 years

Exclusion criteria

Exclusion Criteria:

  • Patients already under a specific treatment for hyperthyroidism
  • Patients taking beta blockers or any other cardiospecific treatment
  • Patients presenting complications including acute thyrotoxic crisis, or symptomatic cardiac failure
  • to the prescription of beta blockers
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Intervention

    72-hour propanolol before specific treatment of hyperthyroidism

    Drug: Propanolol

Interventions

  • 72-hour propanolol before specific treatment of hyperthyroidism

    Also known as: Avlocardyl

06

What researchers measure

Primary outcomes

  1. Heart rate variability

    Sympatho vagal tone measures

    Time frame: 72 hours

Secondary outcomes

  1. Heart rate

    Heart rate

    Time frame: 72 hours

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Tankeu AT, Azabji-Kenfack M, Nganou CN, Ngassam E, Kuate-Mfeukeu L, Mba C, Dehayem MY, Mbanya JC, Sobngwi E. Effect of propranolol on heart rate variability in hyperthyroidism. BMC Res Notes. 2018 Feb 22;11(1):151. doi: 10.1186/s13104-018-3224-x. PubMed 29471876 ↗

Individual participant data

Plan to share: Undecided — Availability to researchers making a formal request with restrictions in relation to national regulations on data sharing

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 8, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03393728
Lead sponsor
Yaounde Central Hospital
Responsible party
Sobngwi Eugene (Professor of Endocrinology and Metabolism, Yaounde Central Hospital) — Principal investigator
First posted
Jan 8, 2018
Start date
Sep 1, 2008
Primary completion
Dec 30, 2008
Completion
Sep 30, 2009
Last update
Jan 8, 2018

Study contacts

Jean Claude N Mbanya, MD, PhD
study chair · Yaounde Central Hospital and University of Yaounde 1
Eugène Sobngwi
principal investigator · Hôpital Central de Yaoundé et Université de Yaoundé 1

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2018. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Propranolol

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