NCT03204877

Brief Summary

Modern living is associated with an epidemic of type 2 diabetes mellitus (T2DM). Sleep disturbances are strong independent risk factors for incident diabetes. Melatonin has been implicated in regulation of circadian rhythm and sleep, but it is also ascribed anti-oxidative properties and effects on glucose homeostasis. A potential association between melatonin and T2DM has only been addressed in few human physiological studies, but the topic has received renewed interest since genetic-epidemiological studies have pointed to a role for melatonin in the development of the disease. In the current study, the investigators wish to examine whether treatment with synthetic melatonin induces physiological changes that affect the risk of developing type 2 diabetes. Two studies of the physiological effects of melatonin are included in the present protocol. In study A, the investigators will examine the acute effects of Melatonin on insulin secretion and insulin sensitivity using a Botnia clamp and in study B the investigators will examine the potential effects of Melatonin on the incretin response.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
36

participants targeted

Target at P50-P75 for phase_1

Timeline
Completed

Started Aug 2017

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 6, 2017

Completed
26 days until next milestone

First Posted

Study publicly available on registry

July 2, 2017

Completed
2 months until next milestone

Study Start

First participant enrolled

August 22, 2017

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 27, 2019

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2020

Completed
Last Updated

March 25, 2020

Status Verified

March 1, 2020

Enrollment Period

1.5 years

First QC Date

June 6, 2017

Last Update Submit

March 24, 2020

Conditions

Keywords

MelatoninInsulin sensitivityInsulin secretionIncretin response

Outcome Measures

Primary Outcomes (3)

  • Insulin sensitivity

    Insulin sensitivity is assessed by a hyperinsulinemic euglycemic clamp, unit: mg/kg/min

    2 hours (from t= 105 to 225 minutes)

  • Insulin secretion

    Insulin secretion is assessed by an intravenous glucose tolerance test, unit: pmol/L (insulin)

    1 hour (from t = 45 to 105 minutes)

  • Incretin response

    The incretin response is assessed by the difference in incretin hormones between an oral glucose tolerance test and an isoglycemic intravenous glucose infusion, unit: pmol/L (GIP, GLP-1)

    4 hours (from t = 0 to 240 minutes)

Secondary Outcomes (3)

  • Inflammatory markers

    Baseline t = -60 minutes and at t = 45 minutes

  • Substrate oxidation

    From t=15 minutes to 45 minutes and from t=195 minutes to 225 minutes

  • Hormones

    Baseline t = -60 minutes and at t = 45 minutes

Study Arms (2)

Melatonin

ACTIVE COMPARATOR

Four capsules of Melatonin 10 mg is administered orally every hours for four hours during the study day.

Drug: Melatonin

Placebo

PLACEBO COMPARATOR

Four capsules of placebo is administered orally every hours for four hours during the study day.

Other: Placebo

Interventions

Oral capsules

Melatonin
PlaceboOTHER

Oral capsules

Placebo

Eligibility Criteria

Age20 Years - 40 Years
Sexmale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Male sex
  • Age 20-40 years
  • BMI between 22-30 kg/m2
  • Written consent prior to study participation

You may not qualify if:

  • Diabetes or impaired glucose tolerance (fasting p-glucose ≥ 6.1mmol/L)
  • Daily use of a prescription drug
  • Shift work within the last year
  • Travel across \>2 time zones in the past three months
  • Use of melatonin on a regular basis within the last year
  • Severe illness
  • High performance athletes
  • Daily tobacco smoking
  • Previous diagnosis of a sleep disorder
  • Present or earlier alcohol or drug abuse
  • Unable to give informed consent
  • Allergy towards melatonin

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Aarhus University Hospital

Aarhus, 8000, Denmark

Location

Related Publications (3)

  • Pedersen MGB, Lauritzen ES, Svart MV, Stoy J, Sondergaard E, Thomsen HH, Kampmann U, Bjerre M, Jessen N, Moller N, Rittig N. Nutrient sensing: LEAP2 concentration in response to fasting, glucose, lactate, and beta-hydroxybutyrate in healthy young males. Am J Clin Nutr. 2023 Dec;118(6):1091-1098. doi: 10.1016/j.ajcnut.2023.10.007. Epub 2023 Oct 14.

  • Lauritzen ES, Stoy J, Baech-Laursen C, Grarup N, Jessen N, Hansen T, Moller N, Hartmann B, Holst JJ, Kampmann U. The Effect of Melatonin on Incretin Hormones: Results From Experimental and Randomized Clinical Studies. J Clin Endocrinol Metab. 2021 Nov 19;106(12):e5109-e5123. doi: 10.1210/clinem/dgab521.

  • Kampmann U, Lauritzen ES, Grarup N, Jessen N, Hansen T, Moller N, Stoy J. Acute metabolic effects of melatonin-A randomized crossover study in healthy young men. J Pineal Res. 2021 Mar;70(2):e12706. doi: 10.1111/jpi.12706. Epub 2020 Dec 6.

MeSH Terms

Conditions

Glucose Metabolism DisordersInsulin Resistance

Interventions

Melatonin

Condition Hierarchy (Ancestors)

Metabolic DiseasesNutritional and Metabolic DiseasesHyperinsulinism

Intervention Hierarchy (Ancestors)

TryptaminesIndolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsHormonesHormones, Hormone Substitutes, and Hormone Antagonists

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 6, 2017

First Posted

July 2, 2017

Study Start

August 22, 2017

Primary Completion

February 27, 2019

Study Completion

February 1, 2020

Last Updated

March 25, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations