Combination Natural Health Product in Children With Attention Deficit/Hyperactivity Disorder (ADHD)

October 15, 2015 updated by: Kieran Cooley

The Safety and Efficacy of a Compound Natural Health Product in Children With Attention Deficit/Hyperactivity Disorder: A Pilot Study

Attention deficit/hyperactivity disorder (ADHD) is a chronic neurobehavioural disorder often diagnosed in childhood years. Complementary/alternative treatments including natural health products (NHPs) are used by children with ADHD despite limited information on their safety or usefulness. Some evidence suggests children with ADHD have a greater need for zinc, magnesium, vitamin B6 and vitamin C. This study will supplement a small number of children diagnosed with ADHD with therapeutic levels of these nutrients over 10 weeks to get a better understanding of the safety and possible benefit of using these nutrients to treat symptoms associated with ADHD.

Study Overview

Detailed Description

The is an open-label study. Children diagnosed with ADHD will be provided with a weight-based dose of a chewable natural health product containing zinc, magnesium, vitamin B6 and vitamin C for 10 weeks with an additional follow-up post intervention at 20 weeks. Severity of ADHD symptoms will be measured at baseline, week 5 and week 10 using the Connor-3 Parent and SNAP-IV validated questionnaires. Nutritional status will be monitored at baseline and week 10 for changes in serum zinc and erythrocyte magnesium. Children will be monitored for any adverse reactions that may occur using the investigational product.Following the informed consent process, participants will undergo a structured psychiatric interview prior to enrollment and will have 4 30 minute study visits and 2 10 minute telephone calls throughout the study. Blood samples will be taken 2 times with the use of a topical anesthetic to decrease sensation during the blood draw. Once enrolled, children can withdraw from the study at any time if assent to participate is withdrawn.

Study Type

Interventional

Enrollment (Actual)

28

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Ontario
      • Toronto, Ontario, Canada, M2K 1E2
        • Robert Schad Naturopathic Clinic
      • Toronto, Ontario, Canada, M5T 2S1
        • The Center for Addiction and Mental Health

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

6 years to 12 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female children age 6-12 diagnosed with ADHD of any subtype according to DSM-IV criteria. A structured diagnostic interview (Kiddie Sads Present and Lifetime Version) will be conducted to confirm diagnosis of ADHD and assess for comorbid mental health disorders.
  • Primary caregiver (parent or guardian) has given informed consent; child participant gives ongoing assent throughout the study.

Exclusion Criteria:

  • Changes to participants' ADHD medication within 6 weeks of study onset.
  • Diagnosis of additional mental health disorder using the Kiddie Sads.
  • Diagnosis of cancer.
  • Antibiotic use for periods greater than 2 weeks within the 10 weeks prior to the study
  • Diagnosis of Type 1 diabetes and insulin use
  • Low serum ferritin/iron deficiency (<30 ng/ml)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: A
All study participants take part in the experimental arm
Weight based dosing of a chewable natural health product containing 15-35 mg zinc citrate, 150-350 mg magnesium lactate, 30-70 mg pyridoxine hydrochloride and 150-350 mg calcium ascorbate. Participants will take weight based dose two times during the day with meals for a 10 week period
Other Names:
  • Magnesium
  • Vitamin C
  • Vitamin B6
  • Zinc

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Connors-3 Parent Rating Scale
Time Frame: Baseline, week 5, week 10 and follow-up at week 20
Baseline, week 5, week 10 and follow-up at week 20

Secondary Outcome Measures

Outcome Measure
Time Frame
Adverse events
Time Frame: Throughout study
Throughout study
Nutritional status of zinc and magnesium
Time Frame: Week 0 and week 10
Week 0 and week 10
SNAP-IV Parent ADHD questionnaire
Time Frame: Week 0, week 5 and week 10
Week 0, week 5 and week 10

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Heather Boon, PhD, University of Toronto
  • Study Director: Umesh Jain, MD, The Center for Addiction and Mental Health

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2008

Primary Completion (Actual)

December 1, 2009

Study Completion (Actual)

December 1, 2009

Study Registration Dates

First Submitted

June 20, 2008

First Submitted That Met QC Criteria

June 24, 2008

First Posted (Estimate)

June 25, 2008

Study Record Updates

Last Update Posted (Estimate)

October 19, 2015

Last Update Submitted That Met QC Criteria

October 15, 2015

Last Verified

October 1, 2015

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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