Effects of Botulinum Toxin Type A Injection with Microneedle in Patients with Hemifacial Spasm

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

TCTR

Registry ID

TCTR20220607003

Enrollment

Registered

2022-06-07

Start date

2021-02-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Effects of botulinum toxin Botulinum toxin, needle, pain, effects

Interventions

Botulinum toxin injection using microneedle,Botulinum toxin injection using standard needle

Active Comparator Device,Active Comparator Device

Microneedle, Standard needle

Eligibility

Sex/Gender

All

Age

18 Years to 90 Years

Inclusion criteria

Inclusion criteria: primary hemifacial spasm

Exclusion criteria

Exclusion criteria: pregnancy, myasthenia gravis, allergy to botulinum toxin

Design outcomes

Primary

Measure	Time frame
Pain 1 day Visual analogue scale	—

Secondary

Measure	Time frame
Bruise score 1 day and 1 week Bruise score	—

Countries

Thailand

Contacts

Public Contactsuppata maytharakcheep

Chulalongkorn Centre of Excellence for Parkinson's Disease & Related Disorders

sma@chulapd.org0863644665

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026