- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04144790
Impact of Iron Supplementation Treatment on Brain Iron Concentrations
Impact of Iron Supplementation Treatment on Brain Iron Concentrations Among Children With ADHD & Restless Leg Syndrome Combined With Periodic Limb Movements in Sleep
Study Overview
Status
Intervention / Treatment
Detailed Description
The goal of the present study is to provide novel data to evaluate brain iron concentration as a mediator of the association between iron supplementation treatment and improvement in symptoms of ADHD and RLS in children, including PLMS. Aim 1 is to evaluate the impact of iron supplementation treatment on peripheral iron concentrations and brain iron concentrations. The investigators hypothesize that iron supplementation treatment will result in increased peripheral and brain iron concentrations. Aim 2 is to evaluate the impact of iron supplementation treatment on symptoms of ADHD and restlessness during sleep. The investigators hypothesize that iron supplementation treatment will result in decreased symptoms of ADHD and restlessness during sleep. Aim 3 is to investigate the relation between brain iron concentrations and symptoms of ADHD and restlessness during sleep, including PLMS. The investigators hypothesize that brain iron concentrations in the substantia nigra and in the thalamus will be negatively related to symptoms at baseline. Aim 4 is to evaluate whether brain iron concentrations mediate the association between iron supplementation treatment and symptoms of ADHD and restlessness during sleep. The investigators hypothesize that increases in brain iron concentrations in the substantia nigra and in the thalamus will fully explain any improvements in symptoms that occur with iron supplementation treatment.
Twelve participants between the ages of 10 and 15 years will be recruited via Kennedy Krieger Institute's Sleep Disorders Clinic. Recruitment will be accomplished by posting flyers with study information at the clinic and by asking Sleep Disorders Clinic clinicians to discuss the study with their patients who may be eligible and their caregivers. In order to be included in the study, participants will need to have: 1) a clinical diagnosis of ADHD, 2) parent or patient self report of restless sleep, 3) serum iron values with ferritin < 50 mcg/L . Exclusionary criteria will be: 1) family is not proficient in English language, 2) child is in foster care, 3) child has a chronic medical condition or genetic/metabolic disorder that might impact iron metabolism, 4) child has another sleep disorder or neuropsychiatric condition that might influence sleep, RLS, or ADHD symptoms, and 6) child has been receiving iron supplementation or a medication that could disrupt sleep.
An uncontrolled open label trial design is proposed for this pilot study, in order to establish evidence to support a larger blinded, placebo-controlled trial application. Eligible participants will be asked to complete, at baseline (pre-iron supplementation treatment) and again at follow-up (post-treatment): 1) a 7 Tesla MRI scan, 2) five consecutive nights of RestEaZe™ monitoring, 3) caregiver-reported or patient-reported if over the age of 10 years International Restless Leg Syndrome Scale (IRLSS), and 4) caregiver-reported ADHD Rating Scale-5. The treatment interval will be 3 months, which has been sufficient in previous studies to allow for treatment effects to be observed. Investigators anticipate 20 to 30% attrition over the course of the 3 months of treatment, leaving 8-10 participants to scan at follow-up.
Study Type
Enrollment (Estimated)
Contacts and Locations
Study Contact
- Name: Alison E Pritchard, PhD
- Phone Number: 443-923-4409
- Email: pritchard@kennedykrieger.org
Study Locations
-
-
Maryland
-
Baltimore, Maryland, United States, 21231
- Recruiting
- Kennedy Krieger Institute
-
Contact:
- Alison Pritchard, PhD
- Phone Number: 443-923-4409
- Email: pritchard@kennedykrieger.org
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- a clinical diagnosis of RLS
- a clinical diagnosis of ADHD
- PLMS > 3/hour, based on average of 5 nights of home recording with RestEaze leg meters
- fasting serum iron values with ferritin < 50 mcg/kg and transferrin saturation < 45%
Exclusion Criteria:
- family is not proficient in English language
- child is in foster care
- child has a chronic medical condition or genetic/metabolic disorder that might impact iron metabolism
- child has another sleep disorder or neuropsychiatric condition that might influence sleep, RLS, or ADHD symptoms
- child has been receiving iron supplementation, psychostimulant treatment, or a dopamine agonist within the past 6 months.
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Only
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
ADHD+RLS
Twelve participants between the ages of 5 and 18 years with a clinical diagnosis of either RLS or ADHD, and iron deficiency.
|
Although established guidelines do not currently exist for iron supplementation for children, studies have demonstrated effectiveness of a 3-month treatment regimen of 5mg/kg per day of orally-administered ferrous sulfate in reducing PLMS and subjective RLS symptoms and in increasing serum ferritin levels.
Ferrous sulfate 80 mg/day resulted in improvement of ADHD symptoms in iron-deficient children.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in ADHD symptoms
Time Frame: Change from pre- to post- 3 months of iron supplementation treatment
|
Change in ADHD symptoms measured by parent-reported ADHD-RS-V
|
Change from pre- to post- 3 months of iron supplementation treatment
|
Change in RLS symptoms
Time Frame: Change from pre- to post- 3 months of iron supplementation treatment
|
Change in RLS symptoms measured by and RestEaZe™ monitors
|
Change from pre- to post- 3 months of iron supplementation treatment
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in brain-based iron concentrations
Time Frame: Change from pre- to post- 3 months of iron supplementation treatment
|
Change in brain-based iron concentrations indexed by 7 Tesla MRI scans
|
Change from pre- to post- 3 months of iron supplementation treatment
|
Change in blood-based iron concentrations
Time Frame: Change from pre- to post- 3 months of iron supplementation treatment
|
Change in blood-based iron concentrations indexed by ferritin and transferrin
|
Change from pre- to post- 3 months of iron supplementation treatment
|
Collaborators and Investigators
Investigators
- Principal Investigator: Alison E Pritchard, PhD, Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Mental Disorders
- Pathologic Processes
- Metabolic Diseases
- Nervous System Diseases
- Sleep Disorders, Intrinsic
- Dyssomnias
- Neurologic Manifestations
- Neurobehavioral Manifestations
- Disease
- Iron Metabolism Disorders
- Dyskinesias
- Psychomotor Disorders
- Parasomnias
- Syndrome
- Sleep Wake Disorders
- Psychomotor Agitation
- Restless Legs Syndrome
- Iron Deficiencies
Other Study ID Numbers
- KKI
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
Clinical Trials on Restless Legs Syndrome
-
Walter Reed National Military Medical CenterWithdrawnEkbom Syndrome | Restless Legs Syndrome, | Restless Legs,United States
-
GlaxoSmithKlineCompletedRestless Legs Syndrome | Restless Legs Syndrome (RLS)United States
-
Otsuka Pharmaceutical Co., Ltd.CompletedIdiopathic Restless Legs Syndrome
-
XenoPort, Inc.CompletedRestless Legs Syndrome (RLS)United States
-
American Regent, Inc.CompletedRestless Legs Syndrome (RLS)United States
-
Astellas Pharma IncCompletedRestless Legs Syndrome (RLS)Japan
-
Otsuka Pharmaceutical Co., Ltd.CompletedIdiopathic Restless Legs SyndromeJapan
-
UCB PharmaCompletedIdiopathic Restless Legs SyndromeGermany
-
Pfizer's Upjohn has merged with Mylan to form Viatris...CompletedIdiopathic Restless Legs SyndromeUnited States, Spain, Finland, Italy, Germany, Sweden, Austria, Netherlands, United Kingdom
-
American Regent, Inc.CompletedRestless Legs Syndrome (RLS)
Clinical Trials on ferrous sulfate
-
Universidade Federal FluminenseActive, not recruitingDysbiosis | Anemia of Chronic Kidney Disease | Chronic Renal Disease | Iron-Deficiency AnemiaBrazil
-
Swiss Federal Institute of TechnologyUniversity of Oxford; St. Luke's Medical CenterTerminatedIron-deficiencyPhilippines
-
National Cardiovascular Center Harapan Kita Hospital...CompletedHeart Failure, Systolic | Iron-deficiency Anemia
-
Iowa State UniversityCompletedIron-deficiency | Iron Deficiency Anemia | Iron Deficiency Anemia Treatment | Iron Deficiency Anaemia Due to Dietary CausesUnited States
-
Duzce UniversityCompletedIron Deficiency Anemia | Subclinical HypothyroidismTurkey
-
Instituto de Desarrollo e Investigaciones Pediátricas...UnknownIron-deficiency | AnemiaArgentina
-
Indiana UniversityCompletedAutosomal Dominant Hypophosphatemic RicketsUnited States
-
Swiss Federal Institute of TechnologyUniversity Hospital, Zürich; ETH ZurichCompletedAnemia | Iron Deficiency Anemia | Iron DeficiencySwitzerland
-
Solvotrin Innovations LtdActive, not recruitingIron-deficiency | Iron Deficiency Anemia | Heavy Menstrual Bleeding | Premenopause | Iron Adverse ReactionIreland
-
Medical Research CouncilKing's College LondonCompletedAbdominal Pain | Constipation | Diarrhea | Anemia | Heartburn | Side EffectUnited Kingdom