Methylphenidate to Address Attention and Executive Deficits Among Children With Sickle Cell Disease

NCT ID: NCT07226219

Last Updated: 2025-11-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

72 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-31

Study Completion Date

2028-08-31

Brief Summary

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The purpose of this study is to determine if patients with sickle cell disease (SCD) can consistently take a drug called Methylphenidate (MPH) daily, once a day for 4 weeks to help with any thinking, attention or schoolwork problems and if they have any side effects.

The study will assess any thinking or attention problems participants may have both before taking this drug and after. Additionally, the study will assess the decision-making process of the caregiver that may influence using this drug or not.

Primary Objective:

• Assess the feasibility, acceptability, and adherence to MPH treatment in children with SCD and EF deficits.

Secondary Objective:

• Evaluate neurobehavioral and safety outcomes following MPH treatment.

Exploratory Objective:

• Evaluate decision-making and determinants influencing methylphenidate utilization among parents.

Detailed Description

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Children with sickle cell disease (SCD) are at higher risk for executive functioning (EF) deficits, including attention, working memory, and inhibitory control. These deficits are associated with poor academic performance, reduced quality of life, and challenges transitioning to adult healthcare. Despite the effectiveness of stimulant medications like methylphenidate (MPH) in improving EF in the general population and other medical groups, their use in children with SCD is rare.

This is a single-arm, open-label pilot trial conducted at St. Jude Children's Research Hospital. Thirty children with SCD and EF deficits will receive a 4-week course of extended-release MPH (10 mg or 20 mg daily, based on weight). Extended-release methylphenidate will be administered once daily for 4 weeks. The initial dose will be given in clinic, followed by home administration. Adherence will be monitored via weekly video pill counts.

The study will enroll 30 patients aged 8.0 to 17.9 years with SCD and EF impairment, along with 30 caregivers. An additional 12 caregivers who decline participation will be interviewed to assess decision-making and treatment barriers.

Neurobehavioral assessments and side effect evaluations will be conducted at baseline, immediately post-dose, and weekly during the home medication phase. Parents will complete rating scales and interviews to assess treatment acceptability and decision-making.

Conditions

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Sickle Cell Disease Executive Dysfunction Cognitive Impairment Attention Deficit/Hyperactivity Disorder (ADHD)

Keywords

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SCD ADHD

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

30 patients + 42 caregivers (including 12 caregivers who declined participation for interviews)
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Methylphenidate Treatment Group

All participants in this single-arm pilot study will receive extended-release methylphenidate for 4 weeks. The intervention is designed to evaluate feasibility, acceptability, adherence, and safety of stimulant treatment in children and adolescents with sickle cell disease (SCD) and executive functioning deficits.

Group Type EXPERIMENTAL

Extended-Release Methylphenidate

Intervention Type DRUG

Participants will receive a weight-based dose of extended-release methylphenidate (0.6 mg/kg/day), rounded to either 10 mg or 20 mg, taken orally once daily for 4 weeks.

Interventions

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Extended-Release Methylphenidate

Participants will receive a weight-based dose of extended-release methylphenidate (0.6 mg/kg/day), rounded to either 10 mg or 20 mg, taken orally once daily for 4 weeks.

Intervention Type DRUG

Other Intervention Names

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MPH

Eligibility Criteria

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Inclusion Criteria

* Diagnosed with SCD of any genotype
* Enrolled on the institutional protocol: Sickle Cell Clinical Research Intervention Program (SCCRIP)
* Between the ages of 8.0 and 17.9 years

\*Included if performance measure or rating scale criteria met:
* \*Score below the 16th percentile on any 2 out of 4 performance measures:

* NIH Toolbox Flanker
* NIH Toolbox List Sorting
* NIH Toolbox Dimensional Change Card Sort Test (DCST)
* Wechsler Intelligence Scale for Children (WISC) -5/ Wechsler Adult Intelligence Scale (WAIS)-4 Digit Span Forward (DSF)
* \*Score above the 84th percentile on any 1 out of 2 parent rating scales:

* BRIEF-2 Global Executive
* BASC-3 Attention
* English as the primary language
* Research participant and one parent willing to participate and provide consent/assent according to institutional guidelines
* Negative pregnancy test

Exclusion Criteria

* Primary language other than English
* Score below the 2nd percentile on the Wechsler Abbreviated Scale of Intelligence (WASI)-2 intelligence quotient (IQ) test
* Uncontrolled seizures (seizure within the past 6 months)
* Cardiomyopathy or known congenital structural cardiac defects
* Stenotic valvular disease, left coronary artery stenosis, or history of myocarditis or pericarditis
* History of heart arrhythmia including ventricular tachycardia, ventricular fibrillation, supraventricular tachycardia, QT prolongation or concomitant use of medications associated with QT prolongation
* Two or more prior episodes of priapism
* Uncontrolled or untreated hypertension
* Stimulant medication within the past two weeks
* Severe sensory loss
* Previous adverse reaction to methylphenidate
* Inability or unwillingness of research participant or legal guardian/representative to give written informed consent.
* Currently prescribed another investigational medication.
* Currently prescribed any of the following:

* Phenobarbital (anticonvulsant)
* Phenytoin (anticonvulsant)
* Primidone (anticonvulsant)
* Warfarin (anticoagulant)
* Antipsychotic medications
* Selective Serotonin Reuptake Inhibitor (SSRI) medications
* Tricyclic antidepressant (TCA) medications
* Vasopressor medications
Minimum Eligible Age

8 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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St. Jude Children's Research Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Andrew Heitzer, PhD

Role: PRINCIPAL_INVESTIGATOR

St. Jude Children's Research Hospital

Locations

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St. Jude Children's Research Hospital

Memphis, Tennessee, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Andrew Heitzer, PhD

Role: CONTACT

Phone: 866-278-5833

Email: [email protected]

Facility Contacts

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Andrew Heitzer, PhD

Role: primary

Related Links

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http://www.stjude.org

St. Jude Children's Research Hospital

http://www.stjude.org/protocols

Clinical Trials Open at St. Jude

Other Identifiers

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STARS

Identifier Type: -

Identifier Source: org_study_id