Use of Topical anesthesia vs placebo in patients undergoing Medial Branch Block: A prospective double blind randomized control trial

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

TCTR

Registry ID

TCTR20230427007

Enrollment

100

Registered

2023-04-27

Start date

2023-04-27

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

chronic fact facet joint pain patients chronic fact facet joint pain medial branch blocks topical anesthesia placebo fluoroscope-guide

Interventions

5% Liprikaine cream (2.5% prilocaine + 2.5% lidocaine),Placebo

Experimental Drug,Placebo Comparator Drug

Topical anesthesia,Placebo

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients who 1. 18 years of age 2. History of chronic facet joint pain of at least 3 months duration 3. Undergoing Facet Medial Branch Block by fluoroscope-guide 4. No history of local anesthesia allergy

Exclusion criteria

Exclusion criteria: Patients who 1. Patients cannot understand or express themselves in Thai and unable to use the visual analogue scale score (VAS) to rate pain intensity 2. History of local anesthesia allergy

Design outcomes

Primary

Measure	Time frame
Pain After Medial Branch Block injection Visual analogue scale (VAS)	—

Secondary

Measure	Time frame
Satisfaction After Medial Branch Block injection Satisfaction	—

Countries

Thailand

Contacts

Public ContactPiyaman Ngamcharoenrujee

Faculty of Medicine Siriraj Hospital, Mahidol University

noknoy_jib@hotmail.com090929298

Outcome results

None listed

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