The Role of Melatonin in the Regulation of Blood Coagulation

NCT ID: NCT01741389

Last Updated: 2017-10-16

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

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-12-31

Study Completion Date

2014-03-31

Brief Summary

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The main aim is to examine the influence of daylight and melatonin on the temporal variations of hemostatic factors with key roles in the hemostatic process and its regulation. Particular emphasis will be on exploring the role of melatonin in hemostasis by comparing subjects with tetraplegia with able-bodied control subjects.

Detailed Description

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Conditions

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Spinal Cord Injured, Tetraplegia

Keywords

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Circadian variation, hemostasis, melatonin, tetraplegia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Sleep only

Placebo given at night to tetraplegic individuals before going to sleep,

Group Type PLACEBO_COMPARATOR

Melatonin ("Circadin")

Intervention Type DRUG

Melatonin

Melatonin given at night to tetraplegic individuals before going to sleep.

Group Type ACTIVE_COMPARATOR

Melatonin ("Circadin")

Intervention Type DRUG

Interventions

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Melatonin ("Circadin")

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

Intervention group:

* A diagnosis of tetraplegia for at least 2 years, and otherwise healthy.
* Must not use drugs permanently (except anti-spasmolytics).
* Must be able to swallow tablets.
* Must give written consent to participate.

Control group:

* Must be healthy.
* Must not use drugs permanently.
* Must give written consent to participate.

Exclusion Criteria

Both groups:

* Those with acute or chronic co-morbidity.
* Unable to cooperate.
* Not provided written consent to participate.
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Sunnaas Hospital

UNKNOWN

Sponsor Role collaborator

Oslo University Hospital

OTHER

Sponsor Role collaborator

University of Oslo

OTHER

Sponsor Role lead

Responsible Party

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Per Ole Iversen, MD

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Sunnaas Hospital

Nesodden, Nesodden, Norway

Site Status

Countries

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Norway

References

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Dahm A, Osterud B, Hjeltnes N, Sandset PM, Iversen PO. Opposite circadian rhythms in melatonin and tissue factor pathway inhibitor type 1: does daylight affect coagulation? J Thromb Haemost. 2006 Aug;4(8):1840-2. doi: 10.1111/j.1538-7836.2006.02048.x. No abstract available.

Reference Type BACKGROUND
PMID: 16879232 (View on PubMed)

Kostovski E, Dahm AE, Iversen N, Hjeltnes N, Osterud B, Sandset PM, Iversen PO. Melatonin stimulates release of tissue factor pathway inhibitor from the vascular endothelium. Blood Coagul Fibrinolysis. 2011 Jun;22(4):254-9. doi: 10.1097/MBC.0b013e3283442ce2.

Reference Type BACKGROUND
PMID: 21297449 (View on PubMed)

Dahm AE, Iversen PO, Hjeltnes N, Sandset PM. Differences in circadian variations of tissue factor pathway inhibitor type 1 between able-bodied and spinal cord injured. Thromb Res. 2006;118(2):281-7. doi: 10.1016/j.thromres.2005.07.021. Epub 2005 Aug 31.

Reference Type BACKGROUND
PMID: 16139333 (View on PubMed)

Other Identifiers

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2009/295

Identifier Type: -

Identifier Source: org_study_id