CClinicalTrials.gg
Status unknownNCT02315651Updated Dec 12, 2014

Efficacy of Combined Treatment With CoQ10 and Methylphenidate in Children With Attention Deficit Hyperactivity Disorder

An interventional study of Coenzyme Q10 and Placebo in Attention Deficit Hyperactivity Disorder, sponsored by Rabin Medical Center. Status unknown at 1 site in Israel. Open to participants aged 6 Years to 12 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-12-12.

Sponsored by Rabin Medical Center · Not applicable, Interventional, and Supportive care

The sponsor has not verified this record recently (last verified Oct 2014), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
6 Years to 12 Years
Sex
All
01

Study summary

The aim of this study is to evaluate the effects of nutritional supplement co-enzyme Q10 (CoQ10) on methylphenidate-treated ADHD children in a randomized, double-blinded, placebo-controlled prospective study. All eligible patients will undergo randomization and divided into 2 groups: a CoQ10-enriched snack and a placebo snack group. According to power calculation, total of 60 subjects are expected to participate in the study. After the screening of eligibility (up to 14 days), the study is divided into three phases: pre-treatment (first assessment) phase (up to 14 days), treatment phase 8 weeks of treatment, and post-treatment phase. Screening: each participant will undergo screening for protocol eligibility within 14 days (two weeks) of recruitment. Subjects who meet all the inclusion criteria and signed an approved informed consent (both parents and the child) will be enrolled.

Read the detailed description

The aim of this study is to evaluate the effects of nutritional supplement co-enzyme Q10 (CoQ10) on methylphenidate-treated ADHD children in a randomized, double-blinded, placebo-controlled prospective study. All eligible patients will undergo randomization and divided into 2 groups: a CoQ10-enriched snack and a placebo snack group. According to power calculation, total of 60 subjects are expected to participate in the study. After the screening of eligibility (up to 14 days), the study is divided into three phases: pre-treatment (first assessment) phase (up to 14 days), treatment phase 8 weeks of treatment, and post-treatment phase. Screening: each participant will undergo screening for protocol eligibility within 14 days (two weeks) of recruitment. Subjects who meet all the inclusion criteria and signed an approved informed consent (both parents and the child) will be enrolled.

Pre-treatment period (1-st phase): for the purpose of the first assessment, participants' parents will receive Conner's questionnaire for filling by parents and teachers. The first nutritional assessment will be undertaken using 24-h recall assessment.

Treatment period (2-st phase): randomization and treatment. After randomization to 2 groups, CoQ10 and placebo groups, the participants' parents will receive either CoQ10-enriched or placebo snack for 8 weeks (2 months) period. The participants and their parents will be instructed to consume the snack daily. During the study the subjects will manage with their methylphenidate treatment as indicated by their neurologist.

Post-treatment assessment (3-rd phase): At the end of the study period, an additional assessment identical to this of the pre-treatment will be taken to evaluate subjects' response to the snacks.

Statistical analysis (4-th phase): At the end of the study, statistical analysis will be undertaken. Statistical difference between two groups in their pre-treatment and post-treatment behavioral and nutritional response will serve as an evidence for the efficacy of the supplement being used. All data will be documented in patient charts and individual computerized case report form .

The duration of the study is expected to be 2 years.

02

Conditions studied

  • Attention Deficit Hyperactivity Disorder
03

In context

Hyperkinesis

729 studies on the registry are indexed under Hyperkinesis; 25 are open to participants now.

This study's planned enrollment of 60 is below the median of 80 across 583 interventional studies indexed under Hyperkinesis.

Browse Hyperkinesis studies →

Lead sponsor

Rabin Medical Center is the lead sponsor of 385 studies on the registry; 30 are open to participants now.

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

04

Who can participate

Ages eligible
6 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

Children aged 6-12. Diagnosed as ADHD according to DSM4 At least 3 months treated with methylphenidate Informed consent of a parent and agreement of a teacher for participation in the trial -

Exclusion criteria

Exclusion Criteria:

Adolescent girls after more than 3 menses History or current diagnosis of systemic diseases, diabetes, thyroid abnormalities or problems with neural system, such as epilepsy or brain tumor.

Children with other psychiatric disorders, as diagnosed according to DSM4. Children with a risk to suicide. Using of psychiatric medications other then methylphenidate. Using of dietary supplements at least 4 weeks before enrollment. History of abuse of alcohol or drugs according to DSM4. Consuming of above 250 mg of caffeine. Allergy for one of the snack's ingredients. Use of drugs for chronic diseases

-

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Coenzyme Q10

    30 children aged 6-12 will consume daily a snack containing 60 mg of CoQ10 for 8 weeks.

    Dietary Supplement: Coenzyme Q10

  • Placebo comparator
    Placebo

    30 children aged 6-12 years will consume an identical snack without CoQ10 for 8 weeks

    Dietary Supplement: Placebo

Interventions

  • Dietary supplementCoenzyme Q10

    A snack containing 60 mg of Coenzyme Q10. The snack contains also dried fruits and nuts, and their content are identical to this of placebo.

  • Dietary supplementPlacebo

    A snack identical to the trial snack, but without Coenzyme Q10. The snack contains also dried fruits and nuts.

06

What researchers measure

Primary outcomes

  1. Evaluation of an effect of coenzyme CoQ10 on behavioral aspects of methylphenidate- treated ADHD children

    The evaluation will be executed with Conners score

    Time frame: 60 days

Secondary outcomes

  1. Evaluation of an effect of coenzyme Q10 on nutritional behavior of methylphenidate- treated ADHD children

    The evaluation will be executed with 24-h recall and measuring of BMI

    Time frame: 60 days

07

Study locations

1 site
  • Schneider children's medical center of Israel
    Petach-Tikva, Israel
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 12, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02315651
Lead sponsor
Rabin Medical Center
Collaborators
Hebrew University of Jerusalem
Responsible party
Sponsor
First posted
Dec 12, 2014
Start date
Jan 2015
Primary completion
Nov 2015 (estimated)
Completion
Nov 2016 (estimated)
Last update
Dec 12, 2014

Study contacts

Rachel Straussberg, Prof.
Contact
rachels2@clalit.org
972-504399510
Rachel Straussberg, Prof.
principal investigator · Schneider children's medical center of Israe

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2014. You cannot join it, but the record below documents what was studied.

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