CClinicalTrials.gg
Status unknownNCT03062839Updated Aug 15, 2018

Melatonin as Adjuvant Treatment for ADHD in Adults

A Phase 3 interventional study of Melatonin 5 mg in Attention Deficit Hyperactivity Disorder, sponsored by Hospital Israelita Albert Einstein. Status unknown at 1 site in Brazil. Open to participants aged 18 Years to 60 Years. Per ClinicalTrials.gov, last updated 2018-08-15.

Sponsored by Hospital Israelita Albert Einstein · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jul 2018), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years to 60 Years
Sex
All
01

Study summary

This study aims to evaluate the effect of melatonin supplementation as adjuvant treatment in ADHD in adults.

02

Conditions studied

  • Attention Deficit Hyperactivity Disorder
03

In context

Attention Deficit Disorder with Hyperactivity

1,514 studies on the registry are indexed under Attention Deficit Disorder with Hyperactivity; 255 are open to participants now.

This study's planned enrollment of 120 is above the median of 72 across 1,206 interventional studies indexed under Attention Deficit Disorder with Hyperactivity.

Browse Attention Deficit Disorder with Hyperactivity studies →

Lead sponsor

Hospital Israelita Albert Einstein is the lead sponsor of 143 studies on the registry; 32 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

Male and female age 18-60 inclusive. Primary diagnosis of ADHD AISRS total score ≥ 24 CGI-S ≥4 (moderately ill or worse). Understands and is able, willing, and likely to fully comply with the study procedures and restrictions.

Has given written informed consent to participate in the study.

Exclusion criteria

Exclusion Criteria:

BMI less than18.5 or greater than 35. Any underlying/ history or current diagnosis of systemic and/or metabolic disease (e.g. diabetes, Crohn's disease) and/or neurological condition state that may render the subject illegible to participate in the study as assessed by medical history, physical exam, clinical and lab evaluation.

History of uncontrolled hypertension or a resting systolic blood pressure > 140mmHg or diastolic blood pressure > 90mmHg (Subjects with well controlled hypertension on a stable dose (2 months) of anti-hypertensives will be allowed to participate).

Major depression or anxiety disorder which is a focus of treatment or requires taking medication.

A lifetime history of psychosis or bipolar disorder Has any concurrent chronic or unstable medical condition that could confound with the results of safety assessments, increase risk to the subject or lead to difficulty complying with the protocol.

Subjects taking any medication with CNS effects Subjects with a history of two or more prior failed adequate trials of ADHD treatment due to adverse events.

Use of dietary supplements with potential CNS effect, including omega-3 supplements, 30 days before study initiation and throughout the study.

Clinical history of cognitive impairment in judgment of investigator. Pregnant or breast-feeding subjects. Women of childbearing potential must have a negative pregnancy test performed at screening visit prior to randomization. Women of childbearing potential must agree to use adequate birth control for the entire duration of the study.

Subjects with a current (within the last 3 months) DSM-V diagnosis of alcohol or drug abuse or dependence (excluding nicotine).

Has taken an investigational drug or taken part in a clinical trial within 30 days prior to screening.

Any other reason that, in the opinion of the investigator, prevents the subject from participating in the study or compromise the subject safety.

Previous use of melatonin or melatonin analogues

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    Melatonin

    Melatonin 5 mg taken 30 minutes before bed time

    Drug: Melatonin 5 mg

  • Placebo comparator
    Placebo

    Placebo identical to melatonin capsule taken 30 min before bed time

    Drug: Melatonin 5 mg

Interventions

  • DrugMelatonin 5 mg

    Melatonin 5 mg taken 30 minutes before bed time

    Also known as: Melatonina

06

What researchers measure

Primary outcomes

  1. Adult ADHD Investigator Symptom Rating Scale.

    Each of the individual DSM-IV symptoms of ADHD is rated 0 to 3 on a scale of severity.

    Time frame: 12 weeks

Secondary outcomes

  1. Anxiety

    GAD-7 scale

    Time frame: 12 weeks

  2. Depression

    PHQ-9 scale

    Time frame: 12 weeks

  3. CGI-S / I

    Clinical Global Impression Severity / Improvement

    Time frame: 12 weeks

  4. Adverse Event Monitoring

    Adverse Event Monitoring

    Time frame: 12 weeks

07

Study locations

1 of 1 sites recruiting
  • Hospital Albert Einstein
    Sao Paulo, SP, Brazil
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 15, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03062839
Lead sponsor
Hospital Israelita Albert Einstein
Collaborators
Fundação de Amparo à Pesquisa do Estado de São Paulo, University of Sao Paulo
Responsible party
Sponsor
First posted
Feb 23, 2017
Start date
Sep 1, 2017
Primary completion
Feb 28, 2019 (estimated)
Completion
Jun 30, 2019 (estimated)
Last update
Aug 15, 2018

Study contacts

Mario FP Peres, MD
Contact
mariop3r3s@gmail.com
2151-0110
Mario FP Peres, MD
Contact
mariop3r3s@gmail.com
32855726

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jul 2018. You cannot join it, but the record below documents what was studied.

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