Botulinum toxin A injections to improve movement in children with spastic hemiparesis

Effect of Botulinum Toxin Type A on Functionality and Quality of Life in Children and Adolescents With Spastic Hemiparetic Cerebral Palsy GMFCS I-II at Teletón Santiago: A Prospective Single-Group Trial

NA · Instituto Teletón Chile · NCT07034547

This project will try botulinum toxin type A injections in children aged 8–17 with spastic hemiparesis (GMFCS I–II) to see if their motor function and quality of life improve.

Quick facts

PhaseNA
Study typeInterventional
Enrollment30 (estimated)
Ages8 Years to 17 Years
SexAll
SponsorInstituto Teletón Chile (other)
Locations1 site (Santiago, Santiago Metropolitan)
Trial IDNCT07034547 on ClinicalTrials.gov

What this trial studies

This is a prospective, single-group intervention at Instituto Teletón Santiago testing a standardized botulinum toxin type A infiltration protocol in children and adolescents with spastic hemiparesis. The multidisciplinary team of physiatrists, kinesiologists, occupational therapists, and nurses will deliver injections and follow patients with functional and quality-of-life measures. Eligible participants are 8–17 years old, GMFCS I–II, and at least six months since any prior botulinum toxin injection. Outcomes will focus on changes in motor performance and daily functioning over the follow-up period.

Who should consider this trial

Good fit: Children and adolescents aged 8–17 with spastic hemiparesis cerebral palsy, GMFCS level I–II, able to follow functional assessments, and at least six months since their last botulinum toxin injection are ideal candidates.

Not a fit: Patients with significant cognitive impairment preventing assessments, joint limitations not due to spasticity, other causes of spasticity, other neuromuscular diseases, or those outside the specified age/GMFCS range are unlikely to benefit from this protocol.

Why it matters

Potential benefit: If successful, the protocol could reduce spasticity and improve movement and daily functioning, enhancing quality of life for participants.

How similar studies have performed: Previous clinical work has shown that botulinum toxin type A can reduce spasticity and often improves function and participation, though protocols and measured benefits vary across studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Spastic hemiparesis type Cerebral Palsy
* Gross Motor Classification System I-II
* Age 8 to 17 years (based on validation ages for scales to be used)
* Minimum of 6 months since last botulinum toxin injection
* Informed consent signed by legal guardian and assent from users aged 12 to 17 years

Exclusion Criteria:

* Cognitive impairment that prevents following instructions for functional assessments
* Limitation of joint range not caused by spasticity
* Patients diagnosed with other diseases causing spasticity, different from cerebral palsy
* Patients with other neuromuscular diseases

Where this trial is running

Santiago, Santiago Metropolitan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Cerebral Palsy, Spasticity Due to Cerebral Palsy, Hemiparesis, botulinum toxin, quality of life, Physical Functional Performances

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.