A Study to Investigate the Pharmacokinetics of Prolonged-release Melatonin Compared to Standard, Immediate-release Melatonin in Healthy Adults
A Randomized, Double-blind, Comparator-controlled, Cross-over Study to Investigate the Pharmacokinetics of Prolonged-release Melatonin Compared to Standard, Immediate-release Melatonin in Healthy Adults
1 other identifier
interventional
18
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1 healthy
Started Aug 2019
Shorter than P25 for phase_1 healthy
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
August 1, 2019
CompletedFirst Submitted
Initial submission to the registry
August 19, 2019
CompletedFirst Posted
Study publicly available on registry
August 26, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 27, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
August 27, 2019
CompletedJune 9, 2020
June 1, 2020
26 days
August 19, 2019
June 8, 2020
Conditions
Keywords
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
EXPERIMENTALImmediate-Release Melatonin then Prolonged-Release Melatonin
EXPERIMENTALInterventions
4.47 mg melatonin in a bi-layer prolonged-release capsule
4.47 mg melatonin in a standard release bi-layer capsule
Eligibility Criteria
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
- Pharmavite LLClead
- KGK Science Inc.collaborator
Study Sites (1)
KGK Science Inc.
London, Ontario, N6A 5R8, Canada
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.
PMID: 37150895DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
David Crowley, MD
KGK Science Inc.
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