Clinical Trials Logo

Clinical Trial Summary

This study aims to determine whether levodopa, in combination with a high frequency training of (grammatical) rules, is effective in boosting learning success in healthy subjects and whether this kind of training in combination with levodopa improves reading and spelling abilities of patients with dyslexia.


Clinical Trial Description

Prior work by our group shows that d-amphetamine and the dopamine precursor levodopa markedly improve word learning success in healthy subjects. In this randomized, placebo-controlled, double-blind trial, we probe whether daily administration of levodopa, coupled with a training of grammatical rules, improves the training success in healthy adults as compared to placebo administration. In the second step of this study, patients with dyslexia will be trained with the identical protocol. We postulate that the combination of intensive training in language rules and levodopa improves the reading, writing, and spelling abilities of patients with dyslexia. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00111371
Study type Interventional
Source University Hospital Muenster
Contact Stefan Knecht, MD
Phone +49-251-83
Email knecht@uni-muenster.de
Status Recruiting
Phase Phase 4
Start date January 2005
Completion date October 2015

See also
  Status Clinical Trial Phase
Completed NCT00716274 - Effects of Atomoxetine on Brain Activation During Attention & Reading Tasks in Participants With ADHD & Comorbid Dyslexia Phase 4
Recruiting NCT03695068 - Efficacy of a Two-Year Intensive Reading Intervention for Middle School English Learners With Reading Difficulties N/A
Completed NCT04277351 - Role of Auditory Cortical Oscillations in Speech Processing and Dyslexia N/A
Recruiting NCT05996497 - Evaluation of Speech Rhythm Training in Dyslexic Readers Aged 7 to 9 Years N/A
Not yet recruiting NCT04989088 - Neurofeedback Training for Dyslexia N/A
Completed NCT02429739 - Working Memory Training for Children With Dyslexia N/A
Completed NCT05154721 - Rhythm Training of a Serious Game on the Reading Skills of Children w/ a Specific Learning Disorder Impacting Reading N/A
Completed NCT01930500 - The Effectiveness of Neuropsychological Rehabilitation in Young Dyslexic Adults N/A
Unknown status NCT00818428 - Randomized Clinical Trial of Phonological Interventions Phase 2/Phase 3
Recruiting NCT05514457 - Assessment of Visual Dyslexia Remediation Protocols - Dyslexia REMEDIATION N/A
Completed NCT04642859 - Training Second-grade Dyslexic Students Using a Computerized Program in Assiut, Egypt N/A
Completed NCT01012778 - Implementation of Climb Up Program for Children With Attention Deficit Hyperactivity Disorder (ADHD) and Dyslexia in a School in India Phase 1/Phase 2
Not yet recruiting NCT06127550 - taVNS for Letter Learning in Dyslexia N/A
Completed NCT04244578 - Transcranial Direct Current Stimulation in the Treatment of Dyslexia. N/A
Recruiting NCT05636813 - Usefulness of an Assistive Technology Training Program for Adolscents With Dyslexia N/A
Completed NCT02872870 - Developmental Language Difficulties: Behavioural and Electrophysiological Studies N/A
Completed NCT00607919 - Treatment of ADHD With Atomoxetine in Children & Adolescents With ADHD & Comorbid Dyslexia Phase 4
Completed NCT00245804 - Developmental Dyslexia and Functional Maturation of Auditory Cortex N/A
Completed NCT02345876 - Maturation of Auditory Processing in Children With Dyslexia Compared to Average-reading Children
Completed NCT04708899 - Development of an Arabic Central Auditory Processing Remediation Program for Dyslexic Children With(C)APD N/A