Understanding how trihexyphenidyl works in children with dystonic cerebral palsy

Pharmacogenomic Contribution to the Biotransformation of Trihexyphenidyl and Development of a Precision Dosing Model for Children With Dystonia and Cerebral Palsy

Phase 1 Interventional Children's Mercy Hospital Kansas City · NCT06554288

This study is testing how well the medication trihexyphenidyl works for children with dystonic cerebral palsy and if their genes affect how the drug works.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment40 (estimated)
Ages5 Years to 17 Years
SexAll
SponsorChildren's Mercy Hospital Kansas City Academic / other
Locations1 site (Kansas City, Missouri)
Trial IDNCT06554288 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of trihexyphenidyl in children aged 5-17 with dystonic cerebral palsy. It aims to evaluate how the medication is metabolized in the body and whether genetic factors influence its effectiveness. The study will last for 16 weeks and will help inform the design of future clinical trials based on the findings regarding pharmacokinetics and genetic variations. It is a single-arm, nonrandomized pilot study focused on understanding the drug's biotransformation and response in pediatric patients.

Who should consider this trial

Good fit: Ideal candidates are children aged 5-17 diagnosed with cerebral palsy and dystonia that interferes with their daily activities.

Not a fit: Patients who are currently taking trihexyphenidyl or will turn 18 during the study period may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective treatment strategies for children with dystonic cerebral palsy.

How similar studies have performed: While pharmacogenomic approaches in pediatric populations are being explored, this specific study's focus on trihexyphenidyl and its genetic interactions is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Ages 5-17 years of age
* Diagnosis of cerebral palsy and dystonia causing interference
* Parent/legal guardian of a child with a diagnosis of cerebral palsy and dystonia
* Parent/legal guardian is willing and able to provide informed permission/assent for the study

Exclusion Criteria:

* Previously or currently taking trihexyphenidyl
* Patients turning 18 years of age within the study period (16 weeks from Study Day 1)
* A language barrier for the patient that precludes communication and/or the ability to complete study-related requirements

Where this trial is running

Kansas City, Missouri

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.
Conditions Pediatric DisorderGenetic PredispositionDystonia, SecondaryDystoniaCerebral Palsy, Dystonic-RigidCerebral Palsy, DyskineticTrihexyphenidyl Adverse ReactionPharmacogenomic Drug Interaction
Last reviewed 2026-06-13 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.