- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00576472
Learning Impairments Among Survivors of Childhood Cancer
Children surviving some types of cancer have a higher risk of developing learning problems after cancer treatment than do children who have not had cancer or its treatment. Cancer treatment may cause problems with learning, attention, and memory. The purpose of this study is to identify brain changes that may underlie learning problems in cancer survivors and investigate whether methylphenidate (a stimulant medication) may reduce these problems.
Subjects who have had treatment for acute lymphoblastic leukemia (ALL) or a brain tumor will be asked to take part in this research study. Siblings of some subjects will also be asked to take part, so that their results can be compared with those of children who have had cancer treatment. We hypothesize that children receiving more aggressive therapy will have lower white matter brain volumes and these volumes will be significantly lower than age-matched siblings. We also hypothesize that children who take methylphenidate will show improvements on teacher and parent report measures of attention and social skills.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
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North Carolina
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Durham, North Carolina, United States, 27710
- Duke University Medical Center
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South Carolina
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Charleston, South Carolina, United States, 29425
- Medical University of South Carolina
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Tennessee
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Memphis, Tennessee, United States, 38105
- St. Jude Children's Research Hospital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Age: 6 to 18 years old.
- Active subject at St. Jude Children's Research Hospital, or is an age-matched sibling control subject.
- If a subject, received treatment for brain tumor or ALL with either radiation therapy and/or chemotherapy directed at the brain.
- If a subject, at least 12 months post-completion of antineoplastic therapies
- If a subject, no evidence of malignancy, or continuously stable disease since completion of therapy
- English as a primary language
- Informed consent
Exclusion Criteria:
- Glaucoma
- Patient or immediate family member with a history of Tourette's syndrome
- Current antidepressant, anxiolytic, antipsychotic or stimulant therapy
- History of substance abuse
- Recent history of uncontrolled seizures
- Uncorrected hypothyroidism
- Previously or currently randomized on COGRM1 intervention arm
- Previously diagnosed with ADHD, or, if a patient, diagnosed with ADHD prior to diagnosis of malignancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Interventional Model: Crossover Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Treatment
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Please see detailed description for dosing information and study design.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Brain White Matter Volume for Patients Versus Sibling Controls
Time Frame: Enrollment to evaluation of MRI, on average 12.8 months.
|
To compare the white matter volume of patients with those of sibling controls using MRI results captured between -1.8 and 42.36 months from study enrollment.
Existing MRIs very close to enrollment were permissable for inclusion in this study.
|
Enrollment to evaluation of MRI, on average 12.8 months.
|
Brain White Matter Volume for Patients With Acute Lymphoblastic Leukemia Versus Brain Tumors
Time Frame: Enrollment to evaluation of MRI, on average 12.8 months.
|
To compare the white matter volume of Acute Lymphoblastic Leukemia (ALL) patients with those of patients with malignant brain tumors using MRI results captured between -1.8 and 42.36 months from study enrollment.
Existing MRIs very close to enrollment were permissable for inclusion in this study.
|
Enrollment to evaluation of MRI, on average 12.8 months.
|
Brain White Matter Volume for Treatment Intensity Groups and Sibling Controls
Time Frame: Enrollment to evaluation of MRI, on average 12.8 months.
|
To compare the white matter volume of patients by treatment intensity groups (mild, moderate, and high) and sibling controls using MRI results captured between -1.8 and 42.36 months from study enrollment.
Existing MRIs very close to enrollment were permissable for inclusion in this study.
|
Enrollment to evaluation of MRI, on average 12.8 months.
|
Change From Methylphenidate (MPH) Home Maintenance Phase Baseline to Completion of Phase as Measured by Conners' Teacher Rating Scale (CTRS: ADHD T Score)
Time Frame: From beginning and at completion of Methylphenidate (MPH) Home Maintenance Phase, on average 16.3 months.
|
The Conners' Teacher Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Twenty-eight questions are rated on a scale from 0 (not true at all) to 3 (very much true).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed prior to beginning the Methylphenidate (MPH) Home Maintenance Phase(baseline) and upon completion of the phase.
Phase completion ranged between 11.44 and 24.36 months.
|
From beginning and at completion of Methylphenidate (MPH) Home Maintenance Phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Conners' Teacher Rating Scale (CTRS: Cognitive Problem T Score)
Time Frame: From beginning and at completion of home maintenance phase, on average 16.3 months.
|
The Conners' Teacher Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Twenty-eight questions are rated on a scale from 0 (not true at all) to 3 (very much true).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 to 24.36 months
|
From beginning and at completion of home maintenance phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Conners' Parent Rating Scale (CPRS: ADHD T Score)
Time Frame: From beginning and at completion of home maintenance phase, on average 16.3 months.
|
The Conners' Teacher Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Twenty-seven questions are rated on a scale from 0 (not true at all) to 3 (very much true).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 and 24.36 months.
|
From beginning and at completion of home maintenance phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Conner's Parent Rating Scale (CPRS: Cognitive Problem T Score)
Time Frame: From beginning and at completion of home maintenance phase, on average 16.3 months.
|
The Conners' Teacher Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Twenty-seven questions are rated on a scale from 0 (not true at all) to 3 (very much true).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 to 24.36 months
|
From beginning and at completion of home maintenance phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Social Skill Rating System (SSRS-P)
Time Frame: From beginning and at completion of home maintenance phase, on average 16.3 months.
|
The Social Skills Rating System- Parent Version (SSRS-P) is a parent rating scale of social behaviors in reference to typically developing children.
Thirty eight questions are rated 0 (Never) to 3 (very often).
The social skills score is norm-referenced with a mean of 100±15 where a higher score is indicative of better skills.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 to 24.36 months
|
From beginning and at completion of home maintenance phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Wechsler Individual Achievement Test (WIAT) Reading: Composite Standard Score
Time Frame: From beginning and at completion of home maintenance phase, on average 16.3 months.
|
The Wechsler Individual Achievement Test is an examiner administered measure of academic skills.
The Reading Composite consists of Basic Reading (single word reading) and Reading Comprehension.
Raw scores are converted to standard scores with a mean of 100±15 where higher scores indicate better performance.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 to 24.36 months
|
From beginning and at completion of home maintenance phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Wechsler Individual Achievement Test (WIAT) Spelling: Standard Score
Time Frame: From beginning and after completion of home maintenance phase, on average 16.3 months.
|
The Wechsler Individual Achievement Test is an examiner administered measure of academic skills.
The Spelling score assesses the child's ability to spell words to dictation.
Raw scores are converted to standard scores with a mean of 100±15 where higher scores indicate better performance.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 to 24.36 months
|
From beginning and after completion of home maintenance phase, on average 16.3 months.
|
Change From Maintenance Phase Baseline to Completion of Phase as Measured by Wechsler Individual Achievement Test (WIAT) Math: Composite Standard Score
Time Frame: From beginning and after completion of home maintenance phase, on average 16.3 months.
|
The Wechsler Individual Achievement Test is an examiner administered measure of academic skills.
The Math Composite score assesses the child's ability to solve calculation problems (Numerical Operations) and solve applied, word problems (Math Reasoning).
Raw scores are converted to standard scores with a mean of 100±15 where higher scores indicate better performance.
Assessments were performed prior to beginning the Home Therapy Phase (baseline) and upon completion of the phase.
Phase completion ranged between 11.44 to 24.36 months
|
From beginning and after completion of home maintenance phase, on average 16.3 months.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Best Weekly Score Measured by Conners' Parent Rating Scale (CPRS: ADHD T Score) During the 3-week Home Crossover Phase.
Time Frame: weekly during 3-week home crossover phase
|
The Conners' Teacher Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Twenty-seven questions are rated on a scale from 0 (not true at all) to 3 (very much true).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were done weekly during the 3-week Home Crossover Period with the best response being used as the measurement for the test.
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weekly during 3-week home crossover phase
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Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by The Conners' Parent Rating Scale (CPRS) Cognitive Problem/Inattention Scale.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The Conners' Parent Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Three scales are reported: Cognitive Problems/Inattention (assesses the ability to learn at the same pace as peers, organize and complete work, and concentrate for sustained periods of time), Hyperactivity (assesses the ability to sit still to complete tasks, and impulsivity) and ADHD Index (assesses risk for ADHD disorder to be corroborated by other clinical information).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by The Conners' Parent Rating Scale (CPRS) Hyperactivity Scale.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The Conners' Parent Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Three scales are reported: Cognitive Problems/Inattention (assesses the ability to learn at the same pace as peers, organize and complete work, and concentrate for sustained periods of time), Hyperactivity (assesses the ability to sit still to complete tasks, and impulsivity) and ADHD Index (assesses risk for ADHD disorder to be corroborated by other clinical information).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by The Conners' Parent Rating Scale (CPRS) ADHD Index.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The Conners' Parent Rating Scale- Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Three scales are reported: Cognitive Problems/Inattention (assesses the ability to learn at the same pace as peers, organize and complete work, and concentrate for sustained periods of time), Hyperactivity (assesses the ability to sit still to complete tasks, and impulsivity) and ADHD Index (assesses risk for ADHD disorder to be corroborated by other clinical information).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by The Conners' Teacher Rating Scale (CTRS) Cognitive Problem/Inattention Scale.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The Conners' Teacher Rating Scale-Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Three scales are reported: Cognitive Problems/Inattention (assesses the ability to learn at the same pace as peers, organize and complete work, and concentrate for sustained periods of time), Hyperactivity (assesses the ability to sit still to complete tasks, and impulsivity) and ADHD Index (assesses risk for ADHD disorder to be corroborated by other clinical information).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by The Conners' Teacher Rating Scale (CTRS) Hyperactivity Scale.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The Conners' Teacher Rating Scale-Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Three scales are reported: Cognitive Problems/Inattention (assesses the ability to learn at the same pace as peers, organize and complete work, and concentrate for sustained periods of time), Hyperactivity (assesses the ability to sit still to complete tasks, and impulsivity) and ADHD Index (assesses risk for ADHD disorder to be corroborated by other clinical information).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by The Conners' Teacher Rating Scale (CTRS) ADHD Index.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks
|
The Conners' Teacher Rating Scale-Revised (S) is a measure of the observed frequency of behaviors associated with ADHD.
Three scales are reported: Cognitive Problems/Inattention (assesses the ability to learn at the same pace as peers, organize and complete work, and concentrate for sustained periods of time), Hyperactivity (assesses the ability to sit still to complete tasks, and impulsivity) and ADHD Index (assesses risk for ADHD disorder to be corroborated by other clinical information).
Raw scores are converted to T scores using age and gender normative data.
T scores have a mean of 50 ± 10 where higher scores are indicative of greater problems.
Assessments were performed at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by Social Skills Rating System - Parent (SSRS-P) - Social Skill.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The SSRS assesses social skills for children and adolescents at preschool, elementary and secondary developmental levels.
The SSRS is 40 to 57 items, depending on age, completed separately by parents (SSRS-P) and teachers (SSRS-T).
Respondents rate the frequency of occurrence for each item ranging from 0 to 2 (0-never, 1-sometimes, 2-very often).
The raw scores for the SSRS-P and SSRS-T Social Skills Scales and the SSRS-P and SSRS-T Problem Behaviors Scales have different ranges that are dependent upon age.
Raw scores obtained from the SSRS Scales cannot be used to directly interpret social skills or problem behaviors as raw scores vary in meaning based on scale, informant form and developmental level.
Raw scores are converted to standard scores with a mean of 100 ± 15.
For the Social Skills Scale, a higher score is indicative of better social functioning, and for the Problem Behaviors Scale, a higher score is indicative of greater behavior problems.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by Social Skills Rating System - Parent (SSRS-P) - Problem Behavior.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The SSRS assesses social skills for children and adolescents at preschool, elementary and secondary developmental levels.
The SSRS is 40 to 57 items, depending on age, completed separately by parents (SSRS-P) and teachers (SSRS-T).
Respondents rate the frequency of occurrence for each item ranging from 0 to 2 (0-never, 1-sometimes, 2-very often).
The raw scores for the SSRS-P and SSRS-T Social Skills Scales and the SSRS-P and SSRS-T Problem Behaviors Scales have different ranges that are dependent upon age.
Raw scores obtained from the SSRS Scales cannot be used to directly interpret social skills or problem behaviors as raw scores vary in meaning based on scale, informant form and developmental level.
Raw scores are converted to standard scores with a mean of 100 ± 15.
For the Social Skills Scale, a higher score is indicative of better social functioning, and for the Problem Behaviors Scale, a higher score is indicative of greater behavior problems.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by Social Skills Rating System - Teacher (SSRS-T) - Social Skill.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The SSRS assesses social skills for children and adolescents at preschool, elementary and secondary developmental levels.
The SSRS is 40 to 57 items, depending on age, completed separately by parents (SSRS-P) and teachers (SSRS-T).
Respondents rate the frequency of occurrence for each item ranging from 0 to 2 (0-never, 1-sometimes, 2-very often).
The raw scores for the SSRS-P and SSRS-T Social Skills Scales and the SSRS-P and SSRS-T Problem Behaviors Scales have different ranges that are dependent upon age.
Raw scores obtained from the SSRS Scales cannot be used to directly interpret social skills or problem behaviors as raw scores vary in meaning based on scale, informant form and developmental level.
Raw scores are converted to standard scores with a mean of 100 ± 15.
For the Social Skills Scale, a higher score is indicative of better social functioning, and for the Problem Behaviors Scale, a higher score is indicative of greater behavior problems.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Effectiveness of MPH in Enhancing Classroom Attentiveness, Academic Productivity, and Social Behavior Measured by Social Skills Rating System - Teacher (SSRS-T) - Problem Behavior.
Time Frame: Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
The SSRS assesses social skills for children and adolescents at preschool, elementary and secondary developmental levels.
The SSRS is 40 to 57 items, depending on age, completed separately by parents (SSRS-P) and teachers (SSRS-T).
Respondents rate the frequency of occurrence for each item ranging from 0 to 2 (0-never, 1-sometimes, 2-very often).
The raw scores for the SSRS-P and SSRS-T Social Skills Scales and the SSRS-P and SSRS-T Problem Behaviors Scales have different ranges that are dependent upon age.
Raw scores obtained from the SSRS Scales cannot be used to directly interpret social skills or problem behaviors as raw scores vary in meaning based on scale, informant form and developmental level.
Raw scores are converted to standard scores with a mean of 100 ± 15.
For the Social Skills Scale, a higher score is indicative of better social functioning, and for the Problem Behaviors Scale, a higher score is indicative of greater behavior problems.
|
Evaluated at the end of each medication week during the Home Therapy Phase- placebo, low dose and moderate dose weeks.
|
Establish the Effectiveness of MPH on Laboratory Measures of Sustained Attention, Reaction Time, and, Impulsivity Using Conner's Continuous Performance Test (CPT) for Omission Errors.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Change in raw scores for the shortened version of the Conner's CPT from Baseline to Post-dose.
The continuous performance test used during the in-lab trial was developed in house using SuperLab Pro v2.0 (Cedrus Corp., Phoenix, AZ).
The test was modeled after Conners' CPT, but was shortened for ease of administration and evaluation of short-form sensitivity.
The test is one-sixth the length of the Conners' CPT, lasting 2.33 min with 54 total targets and six nontargets (10% of trials).
Similar to the Conners' CPT, the interstimulus intervals also varied by trial blocks with lengths of 1, 2, or 4 s.
Omission errors are the raw score for the number of targets presented where the subject did not respond.
Accordingly, the range for this variable is 0-54 with a higher score indicative of worse performance or problems with sustained attention.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Sustained Attention, Reaction Time, and, Impulsivity Using Conner's Continuous Performance Test (CPT) for Commission Errors.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Change in raw scores for the shortened version of the Conner's CPT from Baseline to Post-dose.
The continuous performance test used during the in-lab trial was developed in house using SuperLab Pro v2.0 (Cedrus Corp., Phoenix, AZ).
The test was modeled after Conners' CPT, but was shortened for ease of administration and evaluation of short-form sensitivity.
The test is one-sixth the length of the Conners' CPT, lasting 2.33 min with 54 total targets and six nontargets (10% of trials).
Similar to the Conners' CPT, the interstimulus intervals also varied by trial blocks with lengths of 1, 2, or 4 s.
Commission errors are the raw score for the numbers of nontargets presented where the subject incorrectly responded.
Accordingly, the range for this variable is 0-6 with a higher score indicative of worse performance or impulsivity.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Sustained Attention, Reaction Time, and, Impulsivity Using Conner's Continuous Performance Test (CPT) for Hit Reaction Time.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Change in raw scores for the shortened version of the Conner's CPT from Baseline to Post-dose.
The continuous performance test used during the in-lab trial was developed in house using SuperLab Pro v2.0 (Cedrus Corp., Phoenix, AZ).
The test was modeled after Conners' CPT, but was shortened for ease of administration and evaluation of short-form sensitivity.
The test is one-sixth the length of the Conners' CPT, lasting 2.33 min with 54 total targets and six nontargets (10% of trials).
Similar to the Conners' CPT, the interstimulus intervals also varied by trial blocks with lengths of 1, 2, or 4 s.
Hit reaction time is average reaction time in milliseconds for all correct responses when targets were presented.
There is no pre-defined range for reaction time; higher score is indicative of slower processing speed.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Sustained Attention, Reaction Time, and, Impulsivity Using Conner's Continuous Performance Test (CPT) for d' (Sensitivity).
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Change in raw scores for the shortened version of the Conner's CPT from Baseline to Post-dose.
The continuous performance test used during the in-lab trial was developed in house using SuperLab Pro v2.0 (Cedrus Corp., Phoenix, AZ).
The test was modeled after Conners' CPT, but was shortened for ease of administration and evaluation of short-form sensitivity.
The test is one-sixth the length of the Conners' CPT, lasting 2.33 min with 54 total targets and six nontargets (10% of trials).
Similar to the Conners' CPT, the interstimulus intervals also varied by trial blocks with lengths of 1, 2, or 4 s.
D' and β are derived variables from signal detection theory.
D' is a measure of sensitivity of a person to the signal or target; a higher score is indicative of better performance or better sustained attention.
D' was calculated as z(hit) - z(commission).
Z-scores were calculated using the NORMSINV function in Microsoft Excel.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Sustained Attention, Reaction Time, and, Impulsivity Using Conner's Continuous Performance Test (CPT) for Beta (Risk Taking).
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Change in raw scores for the shortened version of the Conner's CPT from Baseline to Post-dose.
The continuous performance test used during the in-lab trial was developed in house using SuperLab Pro v2.0 (Cedrus Corp., Phoenix, AZ).
The test was modeled after Conners' CPT, but was shortened for ease of administration and evaluation of short-form sensitivity.
The test is one-sixth the length of the Conners' CPT, lasting 2.33 min with 54 total targets and six nontargets (10% of trials).
Similar to the Conners' CPT, the interstimulus intervals also varied by trial blocks with lengths of 1, 2, or 4 s.
D' and β are derived variables from signal detection theory.
β is a measure of response tendency; higher scores indicate a more conservative response pattern.
β was calculated using the formula = -d'*.5*(NORMSINV(hits)-NORMSINV(false
alarms)).
In the case where the false alarm rate = 0 or the hit rate = 1.0, we used the standard correction of 1/2N and 1- 1/2N, respectively.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Learning and Recall Using California Verbal Learning Test (CVLT) Over Five Learning Trials.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the California Verbal Learning Test (CVLT) to estimate the effectiveness of MPH on laboratory measures of learning and recall.
CVLT Trials 1-5 have a mean T Score of 50 and Standard Deviation of 10.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Learning and Recall Using California Verbal Learning Test (CVLT) for Short Delay Free Recall.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the California Verbal Learning Test (CVLT) to estimate the effectiveness of MPH on laboratory measures of learning and recall.
CVLT Z Score for Short Delay Free Recall has a mean of 0 and a standard deviation of 1.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Learning and Recall Using California Verbal Learning Test (CVLT) for Long Delay Free Recall.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the California Verbal Learning Test (CVLT) to estimate the effectiveness of MPH on laboratory measures of learning and recall.
CVLT Z Score for Long Delay Free Recall has a mean of 0 and a standard deviation of 1.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Interference, Impulsivity, Cognitive Flexibility, and Selective Attention Using the Stroop Word-Color Association Test (Stroop) for Word Naming Time.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the Stroop Word-Color Association Test (Stroop) to estimate the effectiveness of MPH on laboratory measures of interference, impulsivity, cognitive flexibility, and selective attention.
Stroop T scores for Word Naming Time have a mean of 50 and a standard deviation of 10.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Interference, Impulsivity, Cognitive Flexibility, and Selective Attention Using the Stroop Word-Color Association Test (Stroop) for Color Naming Time.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the Stroop Word-Color Association Test (Stroop) to estimate the effectiveness of MPH on laboratory measures of interference, impulsivity, cognitive flexibility, and selective attention.
Stroop T scores for Color Naming Time have a mean of 50 and a standard deviation of 10.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Interference, Impulsivity, Cognitive Flexibility, and Selective Attention Using the Stroop Word-Color Association Test (Stroop) for Ink Color Naming Time.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the Stroop Word-Color Association Test (Stroop) to estimate the effectiveness of MPH on laboratory measures of interference, impulsivity, cognitive flexibility, and selective attention.
Stroop T scores for Ink Color Naming Time have a mean of 50 and a standard deviation of 10.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Establish the Effectiveness of MPH on Laboratory Measures of Interference, Impulsivity, Cognitive Flexibility, and Selective Attention Using the Stroop Word-Color Association Test (Stroop) for Interference Score.
Time Frame: Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Patients were randomized into two sequence groups: 1) P/M: placebo followed by MPH; 2) M/P: MPH followed by placebo.
We are interested in testing the difference of effects of MPH and placebo, not in testing the difference of two sequence groups.
We will use the Stroop Word-Color Association Test (Stroop) to estimate the effectiveness of MPH on laboratory measures of interference, impulsivity, cognitive flexibility, and selective attention.
Stroop T scores for Interference Score have a mean of 50 and a standard deviation of 10.
|
Subjects were tested in both the drug and placebo groups before and after taking either MPH or placebo.
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Heather M Conklin, St. Jude Children's Research Hospital
Publications and helpful links
General Publications
- Mulhern RK, Khan RB, Kaplan S, Helton S, Christensen R, Bonner M, Brown R, Xiong X, Wu S, Gururangan S, Reddick WE. Short-term efficacy of methylphenidate: a randomized, double-blind, placebo-controlled trial among survivors of childhood cancer. J Clin Oncol. 2004 Dec 1;22(23):4795-803. doi: 10.1200/JCO.2004.04.128. Erratum In: J Clin Oncol. 2005 Jan 1;23(1):248.
- Reddick WE, Shan ZY, Glass JO, Helton S, Xiong X, Wu S, Bonner MJ, Howard SC, Christensen R, Khan RB, Pui CH, Mulhern RK. Smaller white-matter volumes are associated with larger deficits in attention and learning among long-term survivors of acute lymphoblastic leukemia. Cancer. 2006 Feb 15;106(4):941-9. doi: 10.1002/cncr.21679.
- Conklin HM, Khan RB, Reddick WE, Helton S, Brown R, Howard SC, Bonner M, Christensen R, Wu S, Xiong X, Mulhern RK. Acute neurocognitive response to methylphenidate among survivors of childhood cancer: a randomized, double-blind, cross-over trial. J Pediatr Psychol. 2007 Oct;32(9):1127-39. doi: 10.1093/jpepsy/jsm045. Epub 2007 Jun 14.
- Reeves CB, Palmer S, Gross AM, Simonian SJ, Taylor L, Willingham E, Mulhern RK. Brief report: sluggish cognitive tempo among pediatric survivors of acute lymphoblastic leukemia. J Pediatr Psychol. 2007 Oct;32(9):1050-4. doi: 10.1093/jpepsy/jsm063. Epub 2007 Oct 12.
- Conklin HM, Lawford J, Jasper BW, Morris EB, Howard SC, Ogg SW, Wu S, Xiong X, Khan RB. Side effects of methylphenidate in childhood cancer survivors: a randomized placebo-controlled trial. Pediatrics. 2009 Jul;124(1):226-33. doi: 10.1542/peds.2008-1855.
Helpful Links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Immune System Diseases
- Neoplasms by Histologic Type
- Neoplasms
- Lymphoproliferative Disorders
- Lymphatic Diseases
- Immunoproliferative Disorders
- Neoplasms by Site
- Central Nervous System Neoplasms
- Nervous System Neoplasms
- Leukemia
- Brain Neoplasms
- Precursor Cell Lymphoblastic Leukemia-Lymphoma
- Leukemia, Lymphoid
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Neurotransmitter Uptake Inhibitors
- Membrane Transport Modulators
- Dopamine Agents
- Dopamine Uptake Inhibitors
- Central Nervous System Stimulants
- Methylphenidate
Other Study ID Numbers
- MEMFX2
- P30CA021765 (U.S. NIH Grant/Contract)
- R01CA078957 (U.S. NIH Grant/Contract)
- U01CA081445 (U.S. NIH Grant/Contract)
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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