Metabolism of Patients With Genetically Caused Cardiac Arrhythmia

NCT ID: NCT02775513

Last Updated: 2016-05-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

50 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-09-30

Brief Summary

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Loss-of-function mutations in voltage-gated potassium channels cause long QT syndrome (LQTS) due to a prolonged cardiac repolarisation phase. Hypoteses: patients with loss-of-function mutations also exhibit altered hormone release upon glucose ingestion.

Detailed Description

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Loss-of-function mutations in voltage-gated potassium channels cause long QT syndrome (LQTS) due to a prolonged cardiac repolarisation phase.

Voltage-gated potassium (Kv-) channels are known for their relation to malignant cardiac arrhythmias, but also play a role in pancreatic alpha- and beta cell hormone secretion, and possibly in incretin hormone secretion. We hypothesised that patients with loss-of-function mutations also exhibit altered hormone release upon glucose ingestion.

Conditions

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Long QT Syndrome

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Mutation

Patients with functional mutation in ion channels

No interventions assigned to this group

Control

Matched control

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

LQTS Gain of function Matched healthy controls

Exclusion Criteria

none
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Copenhagen

OTHER

Sponsor Role lead

Responsible Party

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Signe Torekov

Associate professor

Responsibility Role PRINCIPAL_INVESTIGATOR

References

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Hylten-Cavallius L, Iepsen EW, Wewer Albrechtsen NJ, Svendstrup M, Lubberding AF, Hartmann B, Jespersen T, Linneberg A, Christiansen M, Vestergaard H, Pedersen O, Holst JJ, Kanters JK, Hansen T, Torekov SS. Patients With Long-QT Syndrome Caused by Impaired hERG-Encoded Kv11.1 Potassium Channel Have Exaggerated Endocrine Pancreatic and Incretin Function Associated With Reactive Hypoglycemia. Circulation. 2017 May 2;135(18):1705-1719. doi: 10.1161/CIRCULATIONAHA.116.024279. Epub 2017 Feb 24.

Reference Type DERIVED
PMID: 28235848 (View on PubMed)

Other Identifiers

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LQTS

Identifier Type: -

Identifier Source: org_study_id

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