# TLR Polymorphism, ASO and Beta-hemolytic Group A Streptococcus Infections in ADHD: an Observational Study

> **NCT04038073** · — · UNKNOWN · sponsor: **University of Turin, Italy** · enrollment: 100 (estimated)

## Conditions studied

- Attention Deficit-Hyperactivity Disorder

## Interventions

- **DIAGNOSTIC_TEST:** Antistreptolysin O Test
- **DIAGNOSTIC_TEST:** Anti-Deoxyribonuclease B
- **DIAGNOSTIC_TEST:** TLR, MyD88, IRAK-4 polymorphism
- **DIAGNOSTIC_TEST:** Anti-Basal Ganglia Antibody

## Key facts

- **NCT ID:** NCT04038073
- **Lead sponsor:** University of Turin, Italy
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-06-03
- **Primary completion:** 2020-06-30
- **Final completion:** 2020-12-01
- **Target enrollment:** 100 (ESTIMATED)
- **Last updated:** 2020-03-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04038073

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04038073, "TLR Polymorphism, ASO and Beta-hemolytic Group A Streptococcus Infections in ADHD: an Observational Study". Retrieved via AI Analytics 2026-07-15 from https://api.ai-analytics.org/clinical/NCT04038073. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*