Safety and Efficacy of Compound Methyl Salicylate Liniment for Topical Pain: a Multicenter Real-World Study in China

The purpose of this phase Ⅳ clinical trial was to evaluate the safety and efficacy of compound methyl salicylate liniment (Ammeltz) in a real-life environment in China. This multicenter clinical trial was conducted at 22 hospitals/centers in China between May 2014 and March 2015.

The primary aim of the trial was to evaluate the safety of Ammeltz in a real-life environment. The secondary monitoring objective was to evaluate the efficacy of Ammeltz in the treatment of soft tissue injury pain in a real-life environment.

In principle, according to the guide for drug monitoring in production enterprises in China, the number of patients included in the statistical analysis of key drug monitoring should not be less than 3000 in order to provide ample information about the trial drug. Therefore, the sample size of this study was chosen to be 3600 cases, considering the dropout rate of the subjects.

Study Overview

• Status: Completed
• Conditions: Pain
• Intervention / Treatment: Drug: The compound methyl salicylate liniment

Detailed Description

The investigators collected demographic data, vital signs, current medical history (type of soft tissue damage), and allergy history of the eligible patients on the day of Ammeltz prescription. At the same time, a doctor conducted the physical examination and evaluated the visual analog scale (VAS) score of each patient. On the seventh day of the drug administration (one course of the treatment lasts seven days), the investigator asked each patient by telephone about the actual use of the study drug, whether adverse events occurred, and about the self-assessment pain VAS score. On the 37th day of the treatment, the patients were interviewed again by telephone to inquire about the occurrence of adverse events .

The inclusion criteria for the patients were as follows: 1) age 3-75 years, male or female sex; 2) soft tissue pain caused by shoulder and neck pain, back pain, muscle pain, sprain, strain, contusion, muscle swelling and pain, and arthritis; local symptoms included pain, swelling, bruising, or tenderness; 3) signed informed consent and willing to participate in the study.

Patients were excluded if they met the following criteria: 1) allergy to any of the ingredients in this drug; 2) pregnant women, lactating women, and infants aged 0-3 years; 3) the affected area in the eye or mucous membranes, eczema, macules, wounds, and damaged skin; 4) patients without indications for the use of this drug.

• Study Type: Observational
• Enrollment (Actual): 3600

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 3 years to 75 years (Child, Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Probability Sample

Study Population

people with soft tissue pain caused by shoulder and neck pain, back pain, muscle pain, sprain, strain, contusion, muscle swelling and pain, and arthritis; local symptoms included pain, swelling, bruising, or tenderness

Description

The inclusion criteria for the patients were as follows: 1) age 3-75 years, male or female sex; 2) soft tissue pain caused by shoulder and neck pain, back pain, muscle pain, sprain, strain, contusion, muscle swelling and pain, and arthritis; local symptoms included pain, swelling, bruising, or tenderness; 3) signed informed consent and willing to participate in the study.

Patients were excluded if they met the following criteria: 1) allergy to any of the ingredients in this drug; 2) pregnant women, lactating women, and infants aged 0-3 years; 3) the affected area in the eye or mucous membranes, eczema, macules, wounds, and damaged skin; 4) patients without indications for the use of this drug.

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The adverse events	On the seventh and the 37th day of the drug administration (one course of the treatment lasts seven days), the investigator asked each patient by telephone whether adverse events occurred.	between May 2014 and March 2015

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
the self-assessment pain by VAS score	On the seventh and the 37th day of the drug administration (one course of the treatment lasts seven days), the investigator asked each patient by telephone about the self-assessment pain VAS score.	between May 2014 and March 2015

Collaborators and Investigators

• Sponsor: Xiangya Hospital of Central South University

Publications and helpful links

General Publications

• Guo J, Hu X, Wang J, Yu B, Li J, Chen J, Nie X, Zheng Z, Wang S, Qin Q. Safety and efficacy of compound methyl salicylate liniment for topical pain: A multicenter real-world study in China. Front Pharmacol. 2022 Oct 21;13:1015941. doi: 10.3389/fphar.2022.1015941. eCollection 2022.

Study record dates

Study Major Dates

• Study Start (Actual): May 1, 2014
• Primary Completion (Actual): March 1, 2015
• Study Completion (Actual): March 1, 2015

Study Registration Dates

• First Submitted: August 4, 2022
• First Submitted That Met QC Criteria: August 4, 2022
• First Posted (Actual): August 5, 2022

Study Record Updates

• Last Update Posted (Actual): August 5, 2022
• Last Update Submitted That Met QC Criteria: August 4, 2022
• Last Verified: August 1, 2022

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Peripheral Nervous System Agents; Enzyme Inhibitors; Analgesics; Sensory System Agents; Anti-Inflammatory Agents, Non-Steroidal; Analgesics, Non-Narcotic; Anti-Inflammatory Agents; Antirheumatic Agents; Cyclooxygenase Inhibitors; Salicylates; Methyl salicylate
• Other Study ID Numbers: GDKH001

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No