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The effect of vitamin A in children with attention deficit hyperactivity disorder (ADHD)

The effect of vitamin A supplementation on severity of disease symptoms and anthropometric indices in children with attention deficit hyperactivity disorder (ADHD)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT20090901002394N51
Enrollment
72
Registered
2025-01-04
Start date
2025-02-19
Completion date
Unknown
Last updated
2025-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Attention deficit hyperactivity disorder (ADHD). Attention-deficit hyperactivity disorder, predominantly inattentive type

Interventions

Intervention 1: Intervention group: They receive supplements containing 800 micrograms of vitamin A every other day for 8 weeks. Vitamin A supplement includes soft gelatin capsules of Vitamin A, Eurov

Sponsors

Iran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
6 Years to 12 Years

Inclusion criteria

Inclusion criteria: Age 6 to 12 years Diagnosis of ADHD based on the diagnosis of a child and adolescent psychiatrist according to DSM-V criteria Candidate to receive methylphenidate drug Low vitamin A dietary intake in children, according to the list of foods containing vitamin A Signing a written consent form by the child and one of the child's parents

Exclusion criteria

Exclusion criteria: Presence of any major concurrent psychiatric illness such as autism, bipolar disorder and any major neurological illness such as epilepsy based on a psychiatrist's diagnosis Use of any medication, including drugs affecting the nervous system, at least 4 weeks before the start of the study Use of dietary and herbal supplements including probiotics and vitamin D in the past two months Suffering from any systemic illness, including liver, kidney, thyroid, and cardiovascular diseases, as well as diabetes, fat malabsorption, and infectious diseases based on the patient's history History of severe head injury

Design outcomes

Primary

MeasureTime frame
Severity of symptoms according to Conner’s Parent Questionnaire score. Timepoint: At the beginning of the study and at weeks 4 and 8 of the intervention. Method of measurement: Conner’s Parent Rating Scale Questionnaire.;Severity of symptoms according to Attention Deficit Hyperactivity Disorder Rating Scale Questionnaire score. Timepoint: At the beginning of the study and at weeks 4 and 8 of the intervention. Method of measurement: Attention Deficit Hyperactivity Disorder Rating Scale Questionnaire.;Severity of symptoms according to the evening and morning behavior questionnaire score. Timepoint: At the beginning of the study and at weeks 4 and 8 of the intervention. Method of measurement: Parent Ratings of Evening and Morning Behavior questionnaire.

Secondary

MeasureTime frame
Weight. Timepoint: At the beginning and end of the intervention. Method of measurement: Digital scale.;Height. Timepoint: At the beginning and end of the intervention. Method of measurement: Wall-mounted thermometer.;Body mass index. Timepoint: At the beginning and end of the intervention. Method of measurement: Ratio of weight in kilograms to the square of height in meters.;Waist. Timepoint: At the beginning and end of the intervention. Method of measurement: Tape measure.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactKiyana Talatifar

Iran University of Medical Sciences

kianatlti@gmail.com+98 21 867014805

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026