The goal of this clinical trial is to evaluate the safety and efficacy of Formaderm Lidocaine to the correction of nasolabial folds wrinkle and reduction of pain immediately after treatment. The main questions it aims to answer are: 1. The pain score assessed using Visual Analog Pain Scale(VAS) and Thermometer Pain Scale(TPS). 2. The facial wrinkle assessed using Wrinkle Severity Rating Scales(WSRS). 3. The treatment improvement assessed using Global Aesthetic Improvement Scale (GAIS). 4. Safety Indicators of which incidences on the day of the injection or after the injection. Participants will be self-controlled and randomized for same period, * received both trial product and control product at the same time. * re-visited on Day 14 and Day 30 after injection. The researchers will compare whether Formaderm Lidocaine is superior to Formaderm Dermal Filler Injection (without lidocaine) in terms of pain relief experienced by subjects during injection.
This is a two-center, randomized, self-controlled, double-blind trial. Each subject received the trial product and control product injections at the same time to assess the safety and efficacy of Formaderm Lidocaine, which is a hyaluronic acid dermal filler injection with lidocaine.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
42
Dermal filler injection to facial areas
Dermal filler injection to facial areas
National Taiwan University Hospital
Taipei, Taiwan (r.o.c.), Taiwan
Tri-Service General Hospital
Taoyuan, Taiwan (r.o.c.), Taiwan
Immediately Pain Score Using Visual Analog Pain Scale(VAS)
Assess the pain score immediately after application of Formaderm Lidocaine and Formaderm Dermal Filler Injection(without Lidocaine) at nasolabial fold by utilizing subject reported visual analog pain scale (1 = no pain, 10 = excruciating pain).
Time frame: immediately after injection
Pain Score Using Visual Analog Pain Scale(VAS)
Assess the pain score after 15, 30, 45, 60 minutes of application of Formaderm Lidocaine and Formaderm Dermal Filler Injection(without Lidocaine) at nasolabial fold by utilizing subject reported visual analog pain scale (1 = no pain, 10 = excruciating pain).
Time frame: 15, 30, 45, 60 minutes after injection
Pain Score Using Thermometer Pain Scale(TPS)
Assess the pain score by the physician according to subjects' response immediately after application of Formaderm Lidocaine and Formaderm Dermal Filler Injection(without Lidocaine) at nasolabial fold. Thermometer Pain Scale(TPS) is scored from 0= no pain, to 10= worst possible pain.
Time frame: immediately after injection
Wrinkle Severity Rating Scales(WSRS) improvement ratio
Based on the photographs, blinded physician rated the score of WSRS (Wrinkle Severity Rating Scales) for both group respectively. The difference of WSRS between baseline and day 14 and 30 were calculated. A positive value indicated "effective" improvement; while a value of 0 or a negative value was regarded as "ineffective" treatment. And the WSRS improvement ratio was defined as the effective improvement ratio of either group. The WSRS is a 5-grade instrument for facial wrinkle, Grade 1(absent, no visible nasolabial fold;continuous skin line ) to Grade 5(extreme, extremely deep and long nasolabial fold, detrimental to facial appearance;2-4mm visible V-shaped fold when stretched; unlikely to have satisfactory correction with injectable implant alone)
Time frame: Baseline, Day 14, Day 30
GAIS score assessed by physician
Compared with the baseline photographs, blinded physician rated the class of GAIS(Global Aesthetic Improvement Scale) on Day 14 and Day 30 from 5(exceptional improvement, excellent corrective result) to 1(worsened patient, the appearance has worsened compared with the original condition) for both group respectively.
Time frame: Day 14, Day 30
GAIS score assessed by subjects
Compared with the baseline photographs, the subjects rated the class of GAIS(Global Aesthetic Improvement Scale) on Day 14 and Day 30 from 5(exceptional improvement, excellent corrective result) to 1(worsened patient, the appearance has worsened compared with the original condition) for both group respectively.
Time frame: Day 14, Day 30
Incidence of Treatment-related Adverse Events
The adverse events are defined as any unfavorable sign occurrence in a subject after treatment. The investigator assesses the severity and the relationship of each event to the use of the study device.
Time frame: Day 0 to Day 30
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