A Study to Evaluate the Efficacy and Safety of Adapalene-Clindamycin Combination Gel in the Treatment of Acne Vulgaris

April 27, 2020 updated by: Lee's Pharmaceutical Limited

A Multi-center, Randomized, Single-blind, Paralelle, Positive Controlled Phase III Study to Evaluate the Efficacy and Safety of Adapalene-Clindamycin Combination Gel in the Treatment of Moderate Acne Vulgaris

This is a study to see if Adapalene-Clindamycin Combination Gel is effective and safe in the treatment of acne vulgaris, compared to adapalene gel alone and clindamycin gel alone. Adapalene and clindamycin have been reported to have a better effect in acne treatment when used together. This new formulation is also easier to use as it combines two products into a single gel and only needs to be used once a day.

Study Overview

Status

Status

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

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.
1617

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 Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210042
        • Institute of Dermatology and Hospital for Skin Diseases, Chinese Academy of Medical Sciences

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

12 years to 40 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female, aged 12-40 years old
  • Diagnosis of Grade II-III acne vulgaris with Pillsbury grading system
  • Provide written informed consent if the subject is aged 18 or older. Ages 12-17 should provide written assent and written informed consent from patient's parent or legal guardian.

Exclusion Criteria:

  • Known hypersensitivity to adapalene, clindamycin hydrochloride, clindamycin phosphate, lincomycin or any ingredient of the study drug, or of allergic constitution
  • Secondary Acne, such as occupational acne and steroid acne
  • Has a dermatological condition of the face that could interfere with the clinical evaluations, such as sunburn, psoriasis, seborrheic dermatitis or eczema
  • History of Crohn's disease, ulcerative colitis or antibiotic-associated colitis
  • History of serious heart disease or hypertension
  • Serious liver or kidney disease, AST or ALT more than twice the upper limit of normal, or Cr above normal
  • Serious endocrine, hematologic or psychiatric disease
  • Known immunocompromised conditions, or require long-term steroids or immunosuppressants
  • Females who are pregnant, lactating, or not willing to use effective contraception
  • Drug or alcohol abuse
  • Used any topical acne treatment within 2 weeks
  • Used any systemic retinoid, antibiotic or other acne treatment
  • Used any investigational drugs or device within 3 months, or concurrently enrolled in another clinical trial
  • Patient who the investigator deemed to be unsuitable for any reason

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: Single

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: Adapalene-Clindamycin Combination Gel
Combination product: Adapalene-Clindamycin Combination Gel
5mg Adapalene/50mg Clindamycin per 5g, applied nightly for 12 weeks
Active Comparator: Adapalene Gel
Drug: Adapalene Gel
Differin 0.1% Gel, applied nightly for 12 weeks
Other Names:
  • Differin
Active Comparator: Clindamycin Gel
Drug: Clindamycin Gel
Clindamycin Phosphate 1% Gel applied twice daily for 12 weeks
Other Names:
  • Clindamycin

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
Percentage Change From Baseline in Total Lesion Counts
Time Frame: Week 12
Percent change from Baseline in total lesions counts in each treatment group at Week 12.
Week 12
Proportion of patients who has at least a two-point reduction in Investigator Global Assessment (IGA) compared to baseline
Time Frame: Week 12
Week 12

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
Percentage change from baseline in inflammatory lesion counts
Time Frame: Week 12
Percent change from baseline in inflammatory lesions count in each treatment group at Week 12.
Week 12
Percentage change from baseline in non-inflammatory lesion counts
Time Frame: Week 12
Percent change from baseline in non-inflammatory lesions count in each treatment group at Week 12.
Week 12
Change from baseline in inflammatory lesion counts
Time Frame: Week 12
Absolute change from baseline in inflammatory lesion counts in each treatment group at Week 12.
Week 12
Change from baseline in non-inflammatory lesion counts
Time Frame: Week 12
Absolute change from baseline in non-inflammatory lesion counts in each treatment group at Week 12.
Week 12
Change from baseline in total lesion counts
Time Frame: Week 12
Absolute change from baseline in total lesions counts in each treatment group at Week 12.
Week 12
Change from baseline in Investigator's Global Assessment (IGA)
Time Frame: Week 12
Absolute change from baseline in Investigator's Global Assessment (IGA) in each treatment group at Week 12.
Week 12
Treatment success rate
Time Frame: Week 12
The proportion of subjects in each treatment group achieving "success" at Week 12, with "success" defined as an IGA score of "clear (score=0)" or "almost clear (score=1)"; if IGA score at baseline is 2, success is only achieved if IGA score is 0 at Week 12.
Week 12

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Local Adverse Reactions
Time Frame: Week 2, Week 4, Week 8 and Week 12
Local Adverse Reactions including erythema, scaling, stinging, burning and pruritus scored by severity
Week 2, Week 4, Week 8 and Week 12

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.
Lee's Pharmaceutical Limited

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Zhaoke (Guangzhou) Ophthalmology Pharmaceutical Ltd.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Heng Gu, MD, Institute of Dermatology and Hospital for Skin Diseases, Chinese Academy of Medical Sciences

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.
August 14, 2018

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.
February 13, 2020

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.
April 7, 2020

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).
July 31, 2018

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.
July 31, 2018

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.
August 6, 2018

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.
April 28, 2020

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.
April 27, 2020

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.
April 1, 2020

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.
  • ZK-ACG-201712

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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