Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00341029 · ClinicalTrials.gov registry record

Genetic Measurements in Blood Cells of Children Taking Adderall or Methylphenidate

A clinical trial, sponsored by National Institute of Environmental Health Sciences (NIEHS).

Completed
Registry status
84
Enrollment target

NCT00341029: Completed study, sponsored by National Institute of Environmental Health Sciences (NIEHS).

NCT00341029 is a clinical trial that has completed, run by National Institute of Environmental Health Sciences (NIEHS). The registered enrollment target is 84 participants. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00341029 has completed, sponsored by National Institute of Environmental Health Sciences (NIEHS).

COMPLETED
Registry status
84 participants
Enrollment target

Study Summary

This study, conducted at Duke University in Durham, NC, will determine whether the drugs Adderall and methylphenidate affect the genetic material of children with attention deficit hyperactivity disorder (ADHD). One small study has shown that taking methylphenidate for ADHD may result in higher levels of certain types of changes to the genetic material contained in white blood cells. The changes seen are not directly linked to increased risk of disease, but indicate a possibility that other kinds of damage that may be linked to increased disease may result from taking methylphenidate. The study will also examine whether these types of changes might occur in children treated with Adderall . Children between the ages of 6 and 12 with symptoms of ADHD may be eligible for this study. Candidates are screened with a medical history, psychiatric examination, IQ test, physical examination, and electrocardiogram. Parents and teachers complete questionnaires to rate the severity of the child's ADHD. Qualified children who are diagnosed with ADHD and who are appropriate candidates for treatment with either Adderall or methylphenidate-based drugs (e.g., Concerta, Metadate, Focalin, Ritalin or Ritalin LA) may be selected for this study. At a baseline visit (Visit 0), parents complete questionnaires that rate the severity of their child's ADHD. The children have their vital signs checked (pulse, blood pressure, breathing rate, height, weight and temperature) and have a blood sample drawn. The children are then randomly assigned to treatment with either Adderall or a methylphenidate product. After the baseline visit, participants undergo the following tests and procedures: Dose Optimization Visits (visits 1-4) In the first 4 weeks of the study, the dose of methylphenidate or Adderall is adjusted weekly until doctors determine the dose strength that works best for the individual child. In addition, the following procedures are done at each visit: * Child's vital signs are chec

Trial Details

FieldValue
Enrollment Target 84 participants
Start Date 2005-12-07
Est. Completion 2007-09-30

What the finished NCT00341029 record still lists

NCT00341029 is an observational study that tracks outcomes without assigning an intervention. The registry caps enrollment at 84 participants, a relatively small participant target.

The record links to 0 conditions, and to 0 interventions.

NCT00341029 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00341029 about?

NCT00341029 is a clinical study titled "Genetic Measurements in Blood Cells of Children Taking Adderall or Methylphenidate". This study, conducted at Duke University in Durham, NC, will determine whether the drugs Adderall and methylphenidate affect the genetic material of children with attention deficit hyperactivity disorder (ADHD). One small study has shown that taking methylphenidate for ADHD may result in higher leve...

What is the current status of trial NCT00341029?

This trial is currently completed. The enrollment target is 84 participants. The study started on 2005-12-07. Estimated completion is 2007-09-30.

Who is sponsoring clinical trial NCT00341029?

This trial is sponsored by National Institute of Environmental Health Sciences (NIEHS), which has 145 total clinical trials registered on ClinicalTrials.gov.

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT02391519 · 84 participants

    Effects of High Altitude on AMPK Activation

  • NCT03838536 · 84 participants · NA

    Synergistic Activity of Human Milk Nutrients and Infant Cognition

  • NCT03884075 · 84 participants · Phase 2

    Non-Alcoholic Fatty Liver Disease, the HEpatic Response to Oral Glucose, and the Effect of Semaglutide (NAFLD HEROES)

  • NCT03894917 · 84 participants

    Characterizing Disease Biology, Treatment and Toxicity in Older Adults With Hepatocellular Carcinoma

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT00341029, the US trial registry maintained by the National Library of Medicine. NCT00341029 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.