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A Clinical Trial to Compare Safety and Effectiveness for Relieving Tenderness of 10% Naproxen Gel vs. a 2.32% Diclofenac Diethylamine Gel in the Treatment of Strains and Bruises of the Legs.

Randomized, Controlled, Double-blind, Placebo-controlled, Multi-center Hypothesis-finding Trial to Compare the Efficacy and Safety of a 10% Naproxen Gel vs. a 2.32% Diclofenac Diethylamine Gel and Placebo in the Treatment of Acute Soft Tissue Injuries of the Lower Extremities

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05026320
Enrollment
76
Registered
2021-08-30
Start date
2021-08-08
Completion date
2021-12-20
Last updated
2025-01-22

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

Conditions

Soft Tissue Injury

Brief summary

Researchers are looking for a different way to treat people who have an injury to their muscles, ligaments, or tendons in their legs or feet. This is known as a soft tissue injury. Before a treatment is available to all patients, researchers study it in trials to better understand its safety and how well it works. People with soft tissue injuries can have pain, swelling, and bruising. In this trial, the researchers want to learn more about the trial treatment, BAYH006689, in participants with a soft tissue injury to their legs or feet. BAYH006689 is a naproxen gel that is used for the temporary relief of minor aches and pains of muscles and joints. The researchers will learn more about how BAYH006689 works and how safe it is in these participants. The trial will include about 100 male and female participants between the ages of 18 and 60. All the participants will have a soft tissue injury to their legs or feet that was caused by playing sports. The injury will have happened within 3 hours of joining the trial. The researchers will use a computer program to randomly choose what treatment each participant will receive. This will help make sure the treatments are chosen fairly and that comparing the results of the treatments is as accurate as possible. The participants will be randomly chosen to be in 1 of 3 groups: * Group 1: BAYH006689 * Group 2: diclofenac diethylamine gel * Group 3: placebo A placebo looks like a treatment but does not have any medicine in it. Diclofenac diethylamine gel is a treatment already available for doctors to be recommended to people with soft tissue injuries. The participants will receive their treatment once in the evening on Day 1 and then 2 times a day for 4 days. The participants will receive their final dose in the morning of Day 6. The doctors will apply the treatment to the participants' skin where the injury is. The participants must be present at the clinic site 11 times over six days: once on Day 1 and twice daily on Days 2-6. During the trial, the doctors will: * check the participants' overall health and ask if they have any medical problems * do physical examinations to check the participants' injuries * use a device to see how tender and sore the participants' injuries are In this trial, the researchers will study how tender the participants' injuries are after 3 days and at other time points over the 6 day follow-up period. They will also study how many participants have medical problems during the trial.

Interventions

DRUGNaproxen gel

10%, bid for 5 days (final application on morning of Day 6)

2.32% bid for 5 days (final application on morning of Day 6)

DRUGPlacebo gel

bid for 5 days (final application on morning of Day 6)

Sponsors

Deutsche Sporthochschule Köln
CollaboratorOTHER
Bayer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Participant must be 18 to 60 years of age inclusive, at the time of signing the informed consent. * Participants with a primary diagnosis of acute sports-related acute soft tissue injuries of the lower extremities that do not require hospitalization and that occurred within 3 hours of enrollment. * Participants with a baseline algometric measurement values on the injured site of ≤50% of the respective value at the contralateral site. * Participants with a baseline pain on movement (POM) of ≥50 mm on a visual analog scale (VAS) (0-100 mm). * Participant's absolute sensitivity to tenderness on the contralateral site is at least 2.5 N/cm2 as measured by algometry. * Participant's size of trauma is between 25 and 150 cm\^2.

Exclusion criteria

* Heart surgery within 2 weeks of enrollment in the study. * Suspected bone fracture or torn ligaments related to the injury. * Open wounds to the area to be treated. * Current skin disorders or localized infection in the area to be treated. * Injured area is too hairy for proper assessments. * Suspected head injury. * History of blood coagulation disorders. * Current or past history of gastrointestinal ulceration, gastrointestinal bleeding or other bleeding disorder(s). * Relevant concomitant disease such as asthma (exercise induced asthma is permitted). * History of significant disease deemed by the investigator to render the patient unsuitable for inclusion, including evidence or history of clinically significant (in the judgment of the investigator) hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular (including hypertension and cardiac arrhythmia), hepatic, psychiatric, neurologic diseases, or malignancies within the last 5 years. * Participants with a medical disorder, condition, or history of such that could impair the participant's ability to participate or complete this trial in the opinion of the investigator. * Significant ongoing painful condition other than that associated with the sports-related injury/contusion. * Any ongoing condition that might interfere with the absorption, distribution, metabolism, or excretion of the study medication. * Females who are planning to become pregnant, are pregnant or lactating. Prior/Concomitant Therapy * Ice and compression are prohibited from the time of injury through the final evaluation. * Physical therapy or other comfort measures, or herbal preparations for bruises from the time of injury through the final evaluation. * Use of any medications within 5 days of enrollment until discharge from the study site (except oral contraceptives, prophylactic antibiotics, synthetic thyroid hormones, methylphenidate or medications to treat benign conditions such as antibiotics to treat acne). * Any other treatment or medication (oral or topical), that could interfere with the trial (e.g. corticosteroids) up to 3 days prior to the trial. * Participants with the following medical conditions may be eligible at the discretion of the investigator: ADHD on a stable dose regimen of methylphenidate/(dextro) amphetamine for at least 6 months; participants with hypothyroidism on a stable dose of synthetic thyroid hormone for at least 6 months. * Have received any form of treatment in the form of medication for depression in the past 6 months or any form of psychotropic agent (including selective serotonin uptake inhibitors \[SSRI\] but excluding ADHD medications described above) within the last 6 months. * Any previous history of allergy or known intolerance to naproxen, diclofenac, paracetamol or any of the drugs or formulation constituents which, in the investigator's opinion, might preclude use of an NSAID, including aspirin-sensitive asthma or a previous allergic response to a NSAID, including bronchospasm, urticaria, angioedema, and rhinitis; participation in a clinical trial in the previous 30 days. * Use of any over the counter (OTC) or prescription medications with which the administration of naproxen, acetaminophen, any other NSAID, is contraindicated. * Habituation to analgesic drugs including opioids (i.e., routine use of oral analgesics 5 or more times per week for greater than 3 weeks within the past 2 years). Other Exclusions * More than low-risk alcohol consumption (\>24 g (males) or ˃12 g (females) of alcohol regularly per day). Amount corresponds to 0.6 L of beer/day or 0.24 L of wine/day or 3 glasses (at 2 cL) of liquor/day for males and 0.3 L of beer/day or 0.12 L of wine/day or 1 glass (at 2 cL) of liquor/day for females. * Self-reported drug abuse within two years prior to screening. * Member or first-degree relative of study staff or the Sponsor directly involved in the study. * Unwilling or unable to comply with all requirements outlined in the protocol. * Previous enrollment in this study.

Design outcomes

Primary

MeasureTime frameDescription
Tenderness (Algometry) Over the Initial 72 HoursUp to the initial 72 hours post doseAlgometry area under the curve (AUC) from zero to the initial 72h post dose. The 72h AUC algometry data was an aggregate of all measurements from timepoints and data including the 72h timepoint. The average data of all participants was reported.

Secondary

MeasureTime frameDescription
Percentage of Participants With at Least One Treatment Emergent Adverse Event After TreatmentAfter first treatment on Day 1 until follow-up visit (Day 30)An AE is any untoward medical occurrence in a clinical study participant, associated with the use of study intervention, whether or not considered related to the study intervention.
Number of Participants With at Least One Treatment Emergent Adverse Event After TreatmentAfter first treatment on Day 1 until follow-up visit (Day 30)An AE is any untoward medical occurrence in a clinical study participant, associated with the use of study intervention, whether or not considered related to the study intervention.

Countries

Germany

Participant flow

Recruitment details

The study was conducted in three centers in Germany. First participant first visit of the study was on 08 AUG 2021, and last participant last visit was on 20 DEC 2021.

Pre-assignment details

Overall 76 participants completed screening and were randomized.

Participants by arm

ArmCount
Naproxen Topical Gel
Participants received naproxen topical gel twice daily for 5 days.
31
Diclofenac Diethylamine Topical Gel
Participants received diclofenac diethylamine topical gel twice daily for 5 days.
30
Placebo
Participants received placebo twice daily for 5 days.
15
Total76

Baseline characteristics

CharacteristicTotalPlaceboDiclofenac Diethylamine Topical GelNaproxen Topical Gel
Age, Continuous32.46 years
STANDARD_DEVIATION 10.64
32.47 years
STANDARD_DEVIATION 13.05
31.57 years
STANDARD_DEVIATION 9.47
33.32 years
STANDARD_DEVIATION 10.74
Race/Ethnicity, Customized
Non-Hispanic/Latino
50 Participants10 Participants19 Participants21 Participants
Race/Ethnicity, Customized
Other
25 Participants5 Participants11 Participants9 Participants
Race/Ethnicity, Customized
Unknown
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
74 Participants15 Participants30 Participants29 Participants
Sex: Female, Male
Female
41 Participants9 Participants16 Participants16 Participants
Sex: Female, Male
Male
35 Participants6 Participants14 Participants15 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 310 / 300 / 15
other
Total, other adverse events
0 / 311 / 300 / 15
serious
Total, serious adverse events
0 / 310 / 300 / 15

Outcome results

Primary

Tenderness (Algometry) Over the Initial 72 Hours

Algometry area under the curve (AUC) from zero to the initial 72h post dose. The 72h AUC algometry data was an aggregate of all measurements from timepoints and data including the 72h timepoint. The average data of all participants was reported.

Time frame: Up to the initial 72 hours post dose

Population: Per protocol population

ArmMeasureValue (MEAN)Dispersion
Naproxen Topical GelTenderness (Algometry) Over the Initial 72 Hours1213.88 Nxh/cm^2Standard Deviation 461.11
Diclofenac Diethylamine Topical GelTenderness (Algometry) Over the Initial 72 Hours1041.04 Nxh/cm^2Standard Deviation 274.25
PlaceboTenderness (Algometry) Over the Initial 72 Hours850.79 Nxh/cm^2Standard Deviation 276.04
p-value: 0.0221ANCOVA
Secondary

Number of Participants With at Least One Treatment Emergent Adverse Event After Treatment

An AE is any untoward medical occurrence in a clinical study participant, associated with the use of study intervention, whether or not considered related to the study intervention.

Time frame: After first treatment on Day 1 until follow-up visit (Day 30)

Population: Safety population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Naproxen Topical GelNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentNasal congestion0 Participants
Naproxen Topical GelNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentRhinitis0 Participants
Naproxen Topical GelNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentParanasal sinus hypersecretion0 Participants
Diclofenac Diethylamine Topical GelNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentNasal congestion1 Participants
Diclofenac Diethylamine Topical GelNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentRhinitis1 Participants
Diclofenac Diethylamine Topical GelNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentParanasal sinus hypersecretion1 Participants
PlaceboNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentRhinitis0 Participants
PlaceboNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentParanasal sinus hypersecretion0 Participants
PlaceboNumber of Participants With at Least One Treatment Emergent Adverse Event After TreatmentNasal congestion0 Participants
Secondary

Percentage of Participants With at Least One Treatment Emergent Adverse Event After Treatment

An AE is any untoward medical occurrence in a clinical study participant, associated with the use of study intervention, whether or not considered related to the study intervention.

Time frame: After first treatment on Day 1 until follow-up visit (Day 30)

Population: Safety population

ArmMeasureGroupValue (NUMBER)
Naproxen Topical GelPercentage of Participants With at Least One Treatment Emergent Adverse Event After Treatmentany AE0 Percentage
Naproxen Topical GelPercentage of Participants With at Least One Treatment Emergent Adverse Event After Treatmentserious AE0 Percentage
Diclofenac Diethylamine Topical GelPercentage of Participants With at Least One Treatment Emergent Adverse Event After Treatmentany AE3.33 Percentage
Diclofenac Diethylamine Topical GelPercentage of Participants With at Least One Treatment Emergent Adverse Event After Treatmentserious AE0 Percentage
PlaceboPercentage of Participants With at Least One Treatment Emergent Adverse Event After Treatmentany AE0 Percentage
PlaceboPercentage of Participants With at Least One Treatment Emergent Adverse Event After Treatmentserious AE0 Percentage

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026