Phase III Efficacy and Tolerability Trial of the Fixed Dose Combination of Etodolac 400 mg and Cyclobenzaprine 10 mg Versus Isolated Active Substances in Pain Control After Impacted Third Molar Extraction (FDCETCB-III)

September 3, 2026 updated by: Apsen Farmaceutica S.A.

Phase III Randomized, Unicentric, Double-masked, Parallel Trial for the Efficacy and Tolerability of the Fixed Dose Combination of Etodolac 400 mg and Cyclobenzaprine 10 mg Versus the Isolated Active Substances (Flancox® 400 mg And Miosan® 10 mg) in Postoperative Pain Control After Impacted Third Molar Extraction

This Phase III study will compare the efficacy and tolerability of a Fixed Dose Combination of Etodolac + Cyclobenzaprine versus the isolated drugs in postoperative pain control after impacted third molar extraction.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
140

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Brazil
    • São Paulo
      • Valinhos, São Paulo, Brazil, 13271-130
        • Azidus Brasil Pesquisa Científica e Desenvolvimento Ltda.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Healthy research participants of both sexes (male and female non-pregnant), aged 18 years or over, underwent impacted third molar extraction surgery

Exclusion Criteria:

  • Presence of any event and / or pathology at the site of interest that may interfere with and contraindicate the performance of the surgical procedure at the discretion of the Investigator, including periodontitis, odontogenic tumors or cysts (associated or not with the third molar), trauma, presence of Inflammation and / or infection;
  • Present or past history of any cardiac, gastrointestinal, respiratory, hepatic, renal, endocrine, neurological, metabolic, psychiatric, hematological event;
  • Previous diagnosis of alcohol and drug abuse defined by DSM-V;
  • Current or past history (for less than 12 months) of smoking;
  • Use of illicit drugs;
  • History of bleeding / bleeding or coagulation disorders, gastric ulcer and / or active peptic hemorrhage;
  • Any finding of clinical (clinical / physical), laboratory or cardiac evaluation (ECG) observation that is interpreted by the investigating physician as a risk to the participant;
  • Use of drugs that potentially interfere with the kinetics / dynamics of acetaminophen or any other medicinal product considered clinically significant by the Investigator;
  • Known hypersensitivity to the active principles used during the study (etodolac and cyclobenzaprine);
  • Women in gestation or breastfeeding, as well as women who present a positive pregnancy test (β - hCG) during the study screening / selection period;
  • Professionals directly involved in the realization of the present study and their relatives;
  • Participant of the research that has participated in clinical study protocols in the last 12 (twelve) months, unless the Investigator deems that there may be direct benefit to it.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Group 1
1 active treatment (Fixed Dose Combination) + 2 placebos
Drug: Fixed Dose Combination
Fixed Dose Combination of Etodolac 400 mg + Cyclobenzaprine 10 mg
Active Comparator: Group 2
1 active treatment (Cyclobenzaprine) + 2 placebos
Drug: Cyclobenzaprine
Individual drug
Other Names:
  • Miosan
Active Comparator: Group 3
1 active treatment (Etodolac) + 2 placebos
Drug: Etodolac
Individual drug
Other Names:
  • Flancox

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Superiority of the Fixed Dose Combination versus Isolated active substances
Time Frame: 4 hours
The Primary outcome will be accessed by the individual response rate in relation to the pain intensity calculated by the Visual Analogic Scale (VAS) scale performed after 4 hours of administration of the first dose of medicines
4 hours

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Individual response rate
Time Frame: 6h, 12h, 24h, 48h and 72h
Individual response rate in relation to the evaluation of pain intensity calculated through the Visual Analogic Scale (VAS) measure in times 6h, 12h, 24h, 48h and 72h
6h, 12h, 24h, 48h and 72h
Edema
Time Frame: 4 hours
Absence of edema after 4 hours of drug administration and at the end of treatment
4 hours
Mandibula constriction
Time Frame: 4 hours
Absence of mandibular constriction after 4 hours of drug administration and at the end of treatment
4 hours
Use of rescue medication
Time Frame: 3 days
Proportion of participants requiring the use of rescue medication over the 3 days of treatment in each treatment group
3 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Apsen Farmaceutica S.A.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 5, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 26, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 26, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 17, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 20, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 25, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 9, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 3, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ETCAPS0317OR-III

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

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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