NCT04067791

Brief Summary

A study comparing the pharmacokinetics of prolonged-release melatonin versus standard, immediate-release melatonin. Multiple blood draws over a 10-hour period will be analysed to determine the area under the curve, time to peak concentration, peak concentration, absorption rate constant, elimination rate constant, absorption half-life, and elimination half-life. Vital signs, hematology parameters, clinical chemistry parameters, and incidence of adverse events are also analysed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
18

participants targeted

Target at below P25 for phase_1 healthy

Timeline
Completed

Started Aug 2019

Shorter than P25 for phase_1 healthy

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

Study Start

First participant enrolled

August 1, 2019

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

August 19, 2019

Completed
7 days until next milestone

First Posted

Study publicly available on registry

August 26, 2019

Completed
1 day until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 27, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 27, 2019

Completed
Last Updated

June 9, 2020

Status Verified

June 1, 2020

Enrollment Period

26 days

First QC Date

August 19, 2019

Last Update Submit

June 8, 2020

Conditions

Keywords

HealthyAdultMelatoninPharmacokineticAbsorptionprolonged-releaseimmediate-release

Outcome Measures

Primary Outcomes (7)

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the area under the curve (AUC 0-10h)

    7 days

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the time to peak concentration (tmax)

    7 days

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the peak concentration (Cmax)

    7 days

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the absorption rate constant

    7 days

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the elimination rate constant

    7 days

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the absorption half-life

    7 days

  • Comparison of the pharmacokinetics of prolonged-release melatonin and immediate-release melatonin by evaluating the elimination half-life

    7 days

Other Outcomes (23)

  • Change in blood pressure after an acute administration of either prolonged-release melatonin or immediate-release melatonin

    7 days

  • Change in heart rate after an acute administration of either prolonged-release melatonin or immediate-release melatonin

    7 days

  • Change in weight after an acute administration of either prolonged-release melatonin or immediate-release melatonin

    7 days

  • +20 more other outcomes

Study Arms (2)

Prolonged-Release melatonin then Immediate-release melatonin

EXPERIMENTAL
Dietary Supplement: Prolonged-Release MelatoninDietary Supplement: Immediate-Release Melatonin

Immediate-Release Melatonin then Prolonged-Release Melatonin

EXPERIMENTAL
Dietary Supplement: Prolonged-Release MelatoninDietary Supplement: Immediate-Release Melatonin

Interventions

Prolonged-Release MelatoninDIETARY_SUPPLEMENT

4.47 mg melatonin in a bi-layer prolonged-release capsule

Immediate-Release Melatonin then Prolonged-Release MelatoninProlonged-Release melatonin then Immediate-release melatonin
Immediate-Release MelatoninDIETARY_SUPPLEMENT

4.47 mg melatonin in a standard release bi-layer capsule

Immediate-Release Melatonin then Prolonged-Release MelatoninProlonged-Release melatonin then Immediate-release melatonin

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Females and males between 18 and 65 years of age at screening
  • BMI between 18.5 to 29.9 kg/m2, inclusive
  • Female participant is not of child-bearing potential, defined as females who have undergone a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, bilateral tubal ligation, total endometrial ablation) or have been post-menopausal (natural or surgically) for at least 1 year prior to screening Or, Females of child-bearing potential must have a negative baseline urine pregnancy test and agree to use a medically approved method of birth control for the duration of the study. Acceptable methods of birth control include: e. Non-hormonal intrauterine devices f. Double-barrier method g. Non-heterosexual lifestyle or agrees to use contraception if planning on changing to heterosexual partner(s) h. Vasectomy of partner at least 6 months prior to screening
  • Have a regular sleep-wake cycle with a bedtime between 9:00 pm and 12:00 am and receive between 7 and 8 hours of sleep for at least 3 weeks
  • Agrees to maintain current sleep schedule throughout study
  • Agrees to maintain current level of physical activity and diet throughout the study
  • Agrees to comply with all study procedures
  • Agrees to consume standardized meals during Visits 2 and 3
  • Agrees to avoid caffeine intake 24 hours prior to Visits 2 and 3
  • Agrees to avoid alcohol intake 24 hours prior to Visits 2 and 3
  • Healthy as determined by medical history, laboratory results, and physical exam as assessed by QI
  • Agrees to provide informed written consent

You may not qualify if:

  • Women who are pregnant, breastfeeding or planning to become pregnant during the course of the trial
  • Allergy, sensitivity, or intolerance to the investigational product's active or inactive ingredients, or the ingredients in the standardized meals
  • Current use of hormonal contraceptives
  • Previous diagnosis of a sleep disorder or use of continuous positive air pressure (C-PAP)
  • Registered with the Canadian National Institute for the Blind (CNIB) and considered as legally blind
  • Current employment that calls for rotating shift work or shift work that will disrupt normal circadian rhythm or have worked shift work in the last 3 weeks
  • Travel across 1 or more time zones in the last 2 weeks and/or is anticipating more travel
  • Currently experiencing vivid nightmares or sleepwalking
  • Diagnosis of any pineal gland abnormalities or have undergone pinealectomy
  • Current or history of any significant diseases of the gastrointestinal tract
  • Unstable metabolic disease or chronic diseases as assessed by the QI
  • Verbal confirmation of current or pre-existing thyroid condition. Treatment on a stable dose of medication for at least 3 months will be considered by the QI
  • Type I or Type II diabetes
  • Significant cardiovascular event in the past 6 months. Participants with no significant cardiovascular event on stable medication may be included after assessment by the QI on a case-by-case basis
  • Cancer, except skin cancers completely excised with no chemotherapy or radiation with a follow up that is negative. Volunteers with cancer in full remission for more than 5 years after diagnosis are acceptable
  • +20 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

KGK Science Inc.

London, Ontario, N6A 5R8, Canada

Location

Related Publications (1)

  • Mun JG, Wang D, Doerflein Fulk DL, Fakhary M, Gualco SJ, Grant RW, Mitmesser SH. A Randomized, Double-Blind, Crossover Study to Investigate the Pharmacokinetics of Extended-Release Melatonin Compared to Immediate-Release Melatonin in Healthy Adults. J Diet Suppl. 2024;21(2):182-194. doi: 10.1080/19390211.2023.2206475. Epub 2023 May 7.

Study Officials

  • David Crowley, MD

    KGK Science Inc.

    PRINCIPAL INVESTIGATOR

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
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 19, 2019

First Posted

August 26, 2019

Study Start

August 1, 2019

Primary Completion

August 27, 2019

Study Completion

August 27, 2019

Last Updated

June 9, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share

Locations