NCT01411280

Brief Summary

The purpose of this study is to assess whether methylphenidate is effective in enhancing the cognitive performance of children with the HbSS or HbSC genotype of SCD who have sustained neurological complications on laboratory-based measures of sustained attention, reaction time, and executive functions, and indirectly, verbal short-term and long-term memory.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at below P25 for phase_3

Timeline
Completed

Started Jun 2006

Typical duration for phase_3

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2006

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 20, 2006

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2009

Completed
2.3 years until next milestone

First Posted

Study publicly available on registry

August 8, 2011

Completed
Last Updated

April 30, 2015

Status Verified

August 1, 2011

Enrollment Period

2.9 years

First QC Date

July 20, 2006

Last Update Submit

April 29, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Conners Parent and teacher Rating Scale

    1 week

Secondary Outcomes (1)

  • Childrens Verbal Learning Test

    4 hours

Study Arms (2)

Laboratory trial

PLACEBO COMPARATOR

Compare methylphenidate to placebo in an acute laboratory trial

Drug: methylphenidate

Home/School trial

EXPERIMENTAL

Low dose and moderate dose methylphenidate are compared to placebo in a home and school trial

Drug: methylphenidate

Interventions

Ritalin 10mg, Ritalin 20mg

Also known as: Ritalin
Home/School trialLaboratory trial

Eligibility Criteria

Age6 Years - 16 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Informed Consent can be obtained from parent or care-giver and Assent can be obtained from the child
  • Children with sickle cell disease (HbSS or HbSC)
  • Age range from 6 to 16 years inclusive
  • English is the child's primary language
  • T-score greater than or equal to 63 on either the Conners' Parent Rating Scale - Revised or the Conners' Teacher Rating

You may not qualify if:

  • History of glaucoma for which methylphenidate is contraindicated
  • Child or immediate family member has a history of a tic disorder or Tourette's syndrome
  • Child is currently receiving antidepressant, anxiolytic, antipsychotic, or stimulant drug therapy
  • Family history of substance abuse disorder due to potential for abuse of stimulants by caregivers or other family members
  • Recent history of uncontrolled seizures (may be on anticonvulsants, provided seizures are under "reasonable" control and that the patient and family understand the risk of altered seizure control and potential interference with maintaining therapeutic levels of anticonvulsants)
  • Hypothyroidism
  • Symptoms of affective and mood disorders
  • Previously diagnosed with ADHD prior to the onset of neurological complications (e.g., stroke or silent infarct) as documented in the medical record or caregiver report.
  • Mental retardation (FSIQ \< 70 on WASI)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Temple University

Philadelphia, Pennsylvania, 19140, United States

Location

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

MeSH Terms

Conditions

Anemia, Sickle Cell

Interventions

Methylphenidate

Condition Hierarchy (Ancestors)

Anemia, Hemolytic, CongenitalAnemia, HemolyticAnemiaHematologic DiseasesHemic and Lymphatic DiseasesHemoglobinopathiesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

PhenylacetatesAcids, CarbocyclicCarboxylic AcidsOrganic ChemicalsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Ronald T Brown, PhD

    Temple University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 20, 2006

First Posted

August 8, 2011

Study Start

June 1, 2006

Primary Completion

May 1, 2009

Study Completion

May 1, 2009

Last Updated

April 30, 2015

Record last verified: 2011-08

Locations