Developmental Delay DisorderRepetitive Transcranial Magnetic Stimulation (rTMS)Global Developmental DelayLanguage Disorders in Children
Investigational drug(s) / intervention(s)
Transcranial magnetic stimulationindividualized language training
Transcranial magnetic stimulation: The stimulation protocol consists of the following parameters: frequency of 10 Hz, intensity at 80% of the resting motor threshold (RMT), 30 pulses per train, 3-second train duration, and a 17-second inter-train interval. Each session comprises 1800 pulses in total, lasting 20 minutes. In addition to language training, participants will receive High-Frequency rTMS as a group-specific intervention. The rTMS will be administered 5 minutes prior to each language training session to leverage the post-stimulation "time window" and potentially enhance training efficacy. The entire study will last approximately 1 months, including 2 weeks of treatment and 2 weeks of follow-up.
individualized language training: individualized language training
Study summary
This study explores a safe and effective new approach to improve language function in children with Global Developmental Delay (GDD). Conducted at Xiangxi Autonomous Prefecture People's Hospital, the study will recruit approximately 50 children aged 2 to 5 years. Participants will be randomly assigned to one of two groups: one receiving personalized language training combined with non-invasive, painless repetitive Transcranial Magnetic Stimulation (rTMS) to activate language regions of the brain, and a control group receiving personalized training for comparative analysis. The study spans one month, including a two-week intervention period followed by a two-week follow-up to evaluate the efficacy and sustainability of the combined therapy. This study has been rigorously reviewed and approved by the hospital's Ethics Committee.
Eligibility
Sex
ALL
Min age
2 Years
Max age
5 Years
Healthy volunteers
No
Inclusion criteria
1. Children aged 2-5 years old, regardless of gender.
2. Meet the diagnostic definition of GDD in China's Diagnostic Guidelines for Global Developmental Delay (2024), confirmed by Gesell Developmental Schedules (GDS). Language domain Developmental Quotient (DQ) ≤ 75. A DQ ≤ 75 is found in at least one of the four developmental domains: gross motor, fine motor, adaptive behavior, and personal-social conduct. Mild-moderate GDD is selected for the study.
3. The presence of significant language developmental delay, the language ability is significantly lower than children of the same age and the same intellectual level, confirmed by the standardized scale of Sign-Significate Relations (S-S) assessment.
4. The child is able to cooperate with the completion of rTMS treatment and language assessment and has no serious behavioral problems.
5. Written informed consent obtained from the child's legal guardian. Exclusion Criteria
1\. History of epilepsy or convulsive seizures. 2. Having metal implants in the skull (e.g. aneurysm clips, metal stents, etc.) and electronic devices such as pacemakers and cochlear implants in the body.
3\. Other serious neurological conditions that may affect language function (e.g., cerebral palsy, progressive neurological disorders, etc.).
4\. Have a diagnosis of ASD. 5. Have a severe hearing or visual impairment. 6. Participation in other clinical trials that may affect speech function. 7. Skin lesions or infection at the scalp treatment site. 8. The fontanelle has not yet closed. 9. Previous rTMS treatment in the last 3 months. 10. Developmental quotient \< 40 in any developmental domains; other circumstances that prevented cooperation with the study.
Primary outcome measure(s)
Change from Baseline in Language Developmental Quotient (DQ) via Gesell Developmental Schedules — Baseline (Day 0), Week 2 (End of intervention), and Week 4 (Follow-up). The language subscale of the Gesell Developmental Schedules is used to evaluate a child's language development. The result is expressed as a Developmental Quotient (DQ), a continuous score where 100 represents performance at the exact chronological age level. A higher DQ indicates better language abilities.
Trial sites (1)
Facility
City
Region
Status
Xiangxi Autonomous Prefecture People's Hospital, The intersection of Century Avenue and Jianxin Road in Qianzhou Sub-district, Jishou (416000), Hunan, China.
Jishou
Hunan
Recruiting
More Xiangya Hospital of Central South University trials in China
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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