Condition category
Musculoskeletal Diseases
Date applied
03/07/2014
Date assigned
29/12/2014
Last edited
29/12/2014
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Background and study aims
Loxonin (loxoprofen sodium) is a kind of non-steroidal anti-inflammatory drug (NSAID). Loxonin tablets are widely used as a painkiller or anti-inflammatory, but like other NSAIDs, they have a number of side effects or adverse reactions (ADR’s). These may include heartburn, headaches, nausea, gastrointestinal problems (such as constipation or diarrhoea) and even intestinal or stomach ulcers. A Loxonin ointment, designed to be applied externally to the skin has therefore been developed in order to reduce the risk of ADR’s when taking the medication. Loxonin is widely used for myalgia (muscle pain). This study aims to compare the effectiveness and safety of the Loxonin ointment with Loxonin tablets for the treatment of myalgia.

Who can participate?
Patients aged 18 to 80 with moderate muscle pain on resting, pressing on the affected muscle or when exercising.

What does the study involve?
Participants are randomly allocated to one of two groups. Those in group 1 (the study group) are treated with the Loxonin ointment once a day and a placebo (dummy) tablet three times a day. Those in group 2 (the control group) are treated with a placebo ointment once a day and a loxoprofen sodium tablet three times a day.

What are the possible benefits and risks of participating?
This product has been marketed in Japan for many years and as it’s an external application it’s relatively safe. Participants will receive the treatment for free and given appropriate economic compensation.

Where is the study run from?
1. Peking University People's Hospital (China)
2. Beijing ChaoYang Hospital (China)
3. China-Japan Friendship Hospital (China)
4. The 1st Hospital of Harbin Medical University (China)
5. The 1st Hospital of China Medical University (China)
6. Shanghai Changhai Hospital (China)
7. The 1st Hospital of SuZhou University (China)
8. Union Hospital TongJi Medical College HuaZhong University of Science and Technology, Rheumatism department (China)
9. Union Hospital TongJi Medical College HuaZhong University of Science and Technology, Orthopaedics department (China)

When is the study starting and how long is it expected to run for?
November 2010 to August 2011.

Who is funding the study?
Lead Chemical Co. Ltd (Japan).

Who is the main contact?
Prof Zhanguo Li

Trial website

Contact information

Type

Scientific

Primary contact

Prof Zhanguo Li

ORCID ID

Contact details

Peking University People's Hospital
No. 11 South Xizhimen Street
Beijing
100044
China

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

YXCS-02-LOX

Study information

Scientific title

A randomized, controlled, double-blind, double-dummy clinical trial to evaluate the safety and efficacy of Loxoprofen Sodium Cataplasm ointment (Loxonin;PAP100mg) against myalgia

Acronym

SELSOAM

Study hypothesis

There will be non-inferiority between Loxoprofen Sodium Cataplasm Ointment and its tablet formulation for the treatment of myalgia.

Ethics approval

Central Ethics Committee of Peking University People's Hospital, 27/07/2010

Study design

Randomized controlled double-blind double-dummy study

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Hospitals

Trial type

Treatment

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Myalgia

Intervention

Study group: Loxoprofen Sodium Cataplasm ointment once daily, one patch each time (100 mg) + placebo tablet 3 times daily, 1 tablet each time (60 mg)

Control group: Placebo Cataplasm ointment once daily, one patch each time (100 mg) + Loxoprofen Sodium tablet 3 times daily, 1 tablet each time (60 mg)

Duration of administration is 2 weeks, and the prescription is changed for every 1 week.

Intervention type

Drug

Phase

Not Applicable

Drug names

Loxoprofen Sodium

Primary outcome measures

Physical test, including the following four symptoms (rest pain, pressing pain, exercising pain, limited movement); each symptom has four grades: no effect, slightly, median, heavily. Timepoint: measured at baseline, 1 week after treatment, 2 weeks after treatment

Secondary outcome measures

Effective rates against different symptoms

Overall trial start date

18/11/2010

Overall trial end date

24/08/2011

Reason abandoned

Eligibility

Participant inclusion criteria

1. Age: > 18 years, < 80 years, 18 and 80 years included
2. Either sex
3. Any of the following with moderate intensity: resting pain, pressing pain, exercising pain
4. The patients were not treated by drugs for one week before giving the investigational product, and no change in physiotherapy for 2 weeks during the first treatment.
5. Patients agree to participate in the trial and sign informed content form after completely understanding the contents of the clinical trial

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

160

Participant exclusion criteria

1. Patient's pain caused by external injury and diagnosed as acute
2. Patient's pain diagnosed as neurosis
3. Patients with lesions, poor skin conditions on pasting site, or with cutaneous anaphylaxis
4. Patients who need steroid drugs or other non-steroid analgesics which may interfere the therapeutic method in this clinical trial.
5. Patient with peptic ulcer.
6. Patients with bronchial asthma.
7. Patients with serious cardiac diseases, hepatic diseases (ALT, AST are equal or bigger than 2.5 times of upper limit), renal diseases (creatinine is equal or bigger than 1.5 times of upper limit), hematologic disease, diabetes, mental diseases, and other serious complications.
8. Pregnant women, lactating mothers or patients who have the possibility of pregnancy, and want to be pregnant during the trial.
9. Patient allergic to this drug.
10. Patients participating any clinical trials on investigational drug or marketed drug within 3 months before enrollment or during clinical trial
11. Other patients judged to be inappropriate for this clinical trial by the investigator

Recruitment start date

18/11/2010

Recruitment end date

24/08/2011

Locations

Countries of recruitment

China

Trial participating centre

Peking University People's Hospital
Beijing
China

Trial participating centre

Beijing ChaoYang Hospital
Beijing
China

Trial participating centre

China-Japan Friendship Hospital
Beijing
China

Trial participating centre

The 1st Hospital of Harbin Medical University
Harbin
China

Trial participating centre

The 1st Hospital of China Medical University
Shenyang
China

Trial participating centre

Shanghai Changhai Hospital
Shanghai
China

Trial participating centre

The 1st Hospital of SuZhou University
SuZhou
China

Trial participating centre

Union Hospital, TongJi Medical College, HuaZhong University of Science and Technology, rheumatism department
Wuhan
China

Trial participating centre

Union Hospital, TongJi Medical College, HuaZhong University of Science and Technology, orthopaedics department
Wuhan
China

Sponsor information

Organisation

Lead Chemical Co. Ltd (Japan)

Sponsor details

77-3 Himata
Toyama
930-0912
Japan

Sponsor type

Industry

Website

http://www.lead-chemical.co.jp

Funders

Funder type

Industry

Funder name

Lead Chemical Co. Ltd (Japan)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

To be confirmed at a later date

Intention to publish date

Participant level data

Other

Results - basic reporting

Publication summary

Publication citations

Additional files

Editorial Notes