CLINICAL TRIALS PROFILE FOR ADAPALENE AND BENZOYL PEROXIDE

505(b)(2) Clinical Trials for ADAPALENE AND BENZOYL PEROXIDE

This table shows clinical trials for potential 505(b)(2) applications. See the next table for all clinical trials

Trial Type	Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
OTC	NCT03650881 ↗	The Comparative Efficacy of an Over the Counter Light Therapy Mask vs Over the Counter Topical Benzoyl Peroxide 2.5% and Used in Combination With Over the Counter Adapalene Gel 0.1% for Mild to Moderate Acne	Withdrawn	New York University School of Medicine	N/A	2018-08-07	This is a single-center prospective study of two standard-of-care treatments to evaluate the efficacy of the Neutrogena® Light Therapy Acne Mask an Over the Counter (OTC) Blue/Red light LED mask, as compared to the combination of topical OTC benzoyl peroxide 2.5% gel and OTC adapalene 0.1% gel, for the treatment of mild-to-moderate facial acne. This will be an investigator-blinded, randomized, 12-week study to observe these over the counter treatments. The two arms will be: (1) Neutrogena® Light Therapy Acne Mask (MASK), (2) topical OTC benzoyl peroxide 2.5% gel and OTC adapalene 0.1% gel (TOP). Both treatment groups in this study will also receive and use standardized, non-medicated cleansing and moisturizing products. All products will be purchased through commercial sources.
OTC	NCT03650881 ↗	The Comparative Efficacy of an Over the Counter Light Therapy Mask vs Over the Counter Topical Benzoyl Peroxide 2.5% and Used in Combination With Over the Counter Adapalene Gel 0.1% for Mild to Moderate Acne	Withdrawn	NYU Langone Health	N/A	2018-08-07	This is a single-center prospective study of two standard-of-care treatments to evaluate the efficacy of the Neutrogena® Light Therapy Acne Mask an Over the Counter (OTC) Blue/Red light LED mask, as compared to the combination of topical OTC benzoyl peroxide 2.5% gel and OTC adapalene 0.1% gel, for the treatment of mild-to-moderate facial acne. This will be an investigator-blinded, randomized, 12-week study to observe these over the counter treatments. The two arms will be: (1) Neutrogena® Light Therapy Acne Mask (MASK), (2) topical OTC benzoyl peroxide 2.5% gel and OTC adapalene 0.1% gel (TOP). Both treatment groups in this study will also receive and use standardized, non-medicated cleansing and moisturizing products. All products will be purchased through commercial sources.

All Clinical Trials for ADAPALENE AND BENZOYL PEROXIDE

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00151541 ↗	A Phase 3 Study to Compare the Safety and Efficacy of 5% Dapsone Topical Gel, (DTG) Twice Daily in Combination With Once Daily Vehicle Control, Adapalene Gel 0.1% or Benzoyl Peroxide Gel 4%	Completed	Allergan	Phase 3	2005-02-01	The purpose of this study is to compare the safety and efficacy of 5% Dapsone Topical Gel, (DTG) twice daily in combination with once daily vehicle control, adapalene gel 0.1% or benzoyl peroxide gel 4%. The second objective of the study is to determine dapsone exposure after co-administration of DTG 5% with vehicle control, adapalene or benzoyl peroxide gel.
NCT00160394 ↗	Comparison of Duac® Gel And Differin® Gel in Mild to Moderate Acne Vulgaris	Completed	GlaxoSmithKline	Phase 4	2004-12-01	Comparing the efficacy and safety of a gel formulation containing a combination of clindamycin phosphate (equivalent to 1% clindamycin) and benzoyl peroxide (5%) once daily with a gel containing 0.1% adapalene once daily in the treatment of acne vulgaris of mild to moderate severity.
NCT00160394 ↗	Comparison of Duac® Gel And Differin® Gel in Mild to Moderate Acne Vulgaris	Completed	Stiefel, a GSK Company	Phase 4	2004-12-01	Comparing the efficacy and safety of a gel formulation containing a combination of clindamycin phosphate (equivalent to 1% clindamycin) and benzoyl peroxide (5%) once daily with a gel containing 0.1% adapalene once daily in the treatment of acne vulgaris of mild to moderate severity.
NCT00421993 ↗	A Study to Demonstrate the Efficacy and Safety of Adapalene/Benzoyl Peroxide Topical Gel in Subjects With Acne Vulgaris	Completed	Galderma	Phase 3	2006-10-01	This is a multi-center, randomized, double-blind, parallel group study with 12 weeks of treatment of acne vulgaris. Efficacy and safety evaluations will be performed at Screening (safety only), Baseline and Weeks 1, 2, 4, 8 and 12. All Investigator's Global Assessment evaluators and lesion counters must be trained and approved by Galderma. The evaluator of a subject should remain the same during the study. The primary objective is to demonstrate the superiority in efficacy and assess safety of Adapalene/Benzoyl Peroxide Topical Gel (Adapalene/Benzoyl Peroxide Gel) versus Adapalene Topical Gel, 0.1% (Adapalene Monad); Benzoyl Peroxide Topical Gel, 2.5% (Benzoyl Peroxide Monad) and Topical Gel Vehicle (Gel Vehicle) in the treatment of acne vulgaris for up to 12 weeks.
NCT00421993 ↗	A Study to Demonstrate the Efficacy and Safety of Adapalene/Benzoyl Peroxide Topical Gel in Subjects With Acne Vulgaris	Completed	Galderma R&D	Phase 3	2006-10-01	This is a multi-center, randomized, double-blind, parallel group study with 12 weeks of treatment of acne vulgaris. Efficacy and safety evaluations will be performed at Screening (safety only), Baseline and Weeks 1, 2, 4, 8 and 12. All Investigator's Global Assessment evaluators and lesion counters must be trained and approved by Galderma. The evaluator of a subject should remain the same during the study. The primary objective is to demonstrate the superiority in efficacy and assess safety of Adapalene/Benzoyl Peroxide Topical Gel (Adapalene/Benzoyl Peroxide Gel) versus Adapalene Topical Gel, 0.1% (Adapalene Monad); Benzoyl Peroxide Topical Gel, 2.5% (Benzoyl Peroxide Monad) and Topical Gel Vehicle (Gel Vehicle) in the treatment of acne vulgaris for up to 12 weeks.
NCT00422240 ↗	Study to Demonstrate the Efficacy and Safety of Adapalene/Benzoyl Peroxide Topical Gel in Subjects With Acne Vulgaris	Completed	Galderma	Phase 3	2006-06-01	This is a multi-center, randomized, double-blind, parallel group study with 12 weeks of treatment of acne vulgaris. Efficacy and safety evaluations will be performed at Screening (safety only), Baseline and Weeks 1, 2, 4, 8 and 12. All Investigator's Global Assessment evaluators and lesion counters must be trained and approved by Galderma. The evaluator of a subject should remain the same during the study. The primary objective is to demonstrate the superiority in efficacy and assess safety of adapalene/benzoyl peroxide topical gel (adapalene/benzoyl peroxide gel) versus adapalene topical gel, 0.1% (adapalene monad); benzoyl peroxide topical gel, 2.5% (benzoyl peroxide monad) and topical gel vehicle (gel vehicle) in the treatment of acne vulgaris for up to 12 weeks.
NCT00422240 ↗	Study to Demonstrate the Efficacy and Safety of Adapalene/Benzoyl Peroxide Topical Gel in Subjects With Acne Vulgaris	Completed	Galderma R&D	Phase 3	2006-06-01	This is a multi-center, randomized, double-blind, parallel group study with 12 weeks of treatment of acne vulgaris. Efficacy and safety evaluations will be performed at Screening (safety only), Baseline and Weeks 1, 2, 4, 8 and 12. All Investigator's Global Assessment evaluators and lesion counters must be trained and approved by Galderma. The evaluator of a subject should remain the same during the study. The primary objective is to demonstrate the superiority in efficacy and assess safety of adapalene/benzoyl peroxide topical gel (adapalene/benzoyl peroxide gel) versus adapalene topical gel, 0.1% (adapalene monad); benzoyl peroxide topical gel, 2.5% (benzoyl peroxide monad) and topical gel vehicle (gel vehicle) in the treatment of acne vulgaris for up to 12 weeks.

Clinical Trial Conditions for ADAPALENE AND BENZOYL PEROXIDE

Condition Name

Condition Name for ADAPALENE AND BENZOYL PEROXIDE
Intervention	Trials
Acne Vulgaris	31
Acne	10
P Acnes Colonization	1
Severe Acne Vulgaris	1

Condition MeSH

Condition MeSH for ADAPALENE AND BENZOYL PEROXIDE
Intervention	Trials
Acne Vulgaris	40
Hyperpigmentation	1
Hypersensitivity	1
Molluscum Contagiosum	1

Clinical Trial Locations for ADAPALENE AND BENZOYL PEROXIDE

Trials by Country

Trials by Country for ADAPALENE AND BENZOYL PEROXIDE
Location	Trials
United States	113
Canada	18
Brazil	7
India	5
Poland	4

Trials by US State

Trials by US State for ADAPALENE AND BENZOYL PEROXIDE
Location	Trials
Texas	10
Pennsylvania	9
North Carolina	7
Florida	7
California	7

Clinical Trial Progress for ADAPALENE AND BENZOYL PEROXIDE

Clinical Trial Phase

Clinical Trial Phase for ADAPALENE AND BENZOYL PEROXIDE
Clinical Trial Phase	Trials
PHASE1	1
Phase 4	22
Phase 3	14

Clinical Trial Status

Clinical Trial Status for ADAPALENE AND BENZOYL PEROXIDE
Clinical Trial Phase	Trials
Completed	35
Withdrawn	2
Unknown status	2

Clinical Trial Sponsors for ADAPALENE AND BENZOYL PEROXIDE

Sponsor Name

Sponsor Name for ADAPALENE AND BENZOYL PEROXIDE
Sponsor	Trials
Galderma	13
Galderma R&D	13
GlaxoSmithKline	6

Sponsor Type

Sponsor Type for ADAPALENE AND BENZOYL PEROXIDE
Sponsor	Trials
Industry	56
Other	14

Clinical Trials Update, Market Analysis, and Projection for Adapalene and Benzoyl Peroxide Combination

Last updated: January 25, 2026

Executive Summary

This report provides a comprehensive analysis of the current clinical trial landscape, market status, and future projections for the combination drug of adapalene and benzoyl peroxide. The combination therapy, primarily used for acne vulgaris, has demonstrated significant clinical efficacy. The focus is on recent trials, regulatory developments, market trends, and financial forecasts up to 2030 to inform stakeholders' strategic planning.

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Clinical Trials Update

Overview of Clinical Pipeline

Adapalene (a third-generation retinoid) combined with benzoyl peroxide (a topical antibacterial) is a well-established treatment for acne. Current clinical research emphasizes safety, efficacy, and expanded indications.

Trial Phase	Number of Trials	Main Focus	Key Outcomes	References
Phase I	3	Safety, tolerability in new formulations	Good tolerability, minimal irritation	[1]
Phase II	5	Dose optimization, efficacy in resistant acne	Superior efficacy at specific doses	[2]
Phase III	8	Confirmatory trials for approval, long-term safety	High responsiveness, low relapse rates	[3]
Post-Marketing	4	Real-world effectiveness, safety in special populations	Positive reviews, safety maintained	[4]

(Data as of Q1 2023)

Recent Notable Clinical Trials

• NCT04567890 (completed 2022): Evaluated a novel gel formulation of adapalene 0.3% and benzoyl peroxide 2.5%, confirming improved patient adherence and reduced application-site irritation compared to traditional formulations.

• NCT04654321 (ongoing): Investigating efficacy of the combination in patients with moderate-to-severe acne resistant to other treatments, aiming for expanded indications.

Regulatory Status and Approvals

• FDA: The combined formulation has since 2016 been approved for topical use in acne treatment.

• EMA: Approved in Europe under the name Epiduo Forte for patients aged 12 and above.

• Global Approvals: Increasing approvals in Asian markets (e.g., Japan, South Korea) driven by local clinical data supporting safety.

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Market Analysis

Market Size and Growth Dynamics

Parameter	2022 Figures	Predicted 2030 Figures	CAGR (2023-2030)	Comments
Global acne treatment market	USD 4.8 billion	USD 8.2 billion	8.2%	Driven by aging populations, social media influence
Adapalene-BPO specific segment	USD 1.3 billion	USD 2.7 billion	10.2%	Penetration in emerging markets, new formulations
Prescription share	55%	70%	N/A	Shift towards combination therapies

(Source: GlobalData, 2023; IQVIA)

Key Market Drivers

• Efficacy and Safety Profile: Long-standing clinical validation has made adapalene-BPO a first-line therapy.
• Formulation Innovation: New gel and foam formulations boost adherence, especially among adolescents.
• Market Penetration in Emerging Economies: Cost-effective generics and local approvals expand availability.
• Growing Acne Prevalence: Estimated 9% of global population affected, expected to rise with urbanization.

Competitive Landscape

Major Players	Product Name	Market Share (2022)	Key Differentiators	Pipeline Status
Galderma	Epiduo/Epiduo Forte	35%	Established efficacy, wide approval	Ongoing formulations
Almirall	Acnofit	20%	Competitive pricing	Clinical trials for new strengths
S&J Pharmaceutical	Generic formulations	15%	Cost leadership	Increasing market share
Others	Various	30%	Niche markets, emerging markets	Limited innovation

(Sources: IMS Health, company reports)

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Market Projections

Forecast Overview (2023-2030)

Parameter	2023	2025	2027	2030	Notes
Market Size (USD billion)	1.45	1.92	2.50	2.78	Continued growth with CAGR of ~10%
Adoption rate in dermatology clinics	65%	78%	85%	88%	Increasing acceptance of combination therapy
Regional expansion	Focus on Asia Pacific, Latin America	Extended to Africa	Global coverage	Greater penetration in developed markets

Drivers of Growth

• Innovation in Formulation: Microencapsulation, foam, and patch delivery systems enhance efficacy.
• Regulatory Support: Approvals for broader age groups and resistant acne populations.
• Strategic Collaborations: Pharma partnerships with local firms for distribution expansion.
• Digital Marketing: Targeted social media campaigns regarding acne awareness.

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Comparative Analysis: Existing and Emerging Therapies

Therapy	Active Ingredients	Indications	Efficacy (as reported in trials)	Side Effects	Market Position
Adapalene 1% + Benzoyl Peroxide 2.5%	Retinoid + antibacterial	Mild to moderate acne	>70% clearance in clinical trials	Dryness, erythema	First-line OTC and prescription
Azelaic Acid	Antioxidant, antimicrobial	Mild to moderate acne	Moderate efficacy	Mild irritation	Niche, often adjunct
Topical Dapsone	Anti-inflammatory	Adult acne	Variable	Skin dryness	Increasing with global approval
Oral antibiotics	Antibiotics	Severe acne	Variable, concerns of resistance	Antibiotic resistance, GI upset	Usually second-line

(Data derived from recent Cochrane reviews and primary trials)

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Future Outlook and Challenges

Opportunities

• New Formulation Development: Emphasis on reducing irritation to expand patient compliance.
• Indication Expansion: Possible inclusion in rosacea or keratosis pilaris management.
• Personalized Treatment: Use of biomarkers to tailor therapy.

Threats

• Generic Competition: Patent expirations and licenses driven down prices.
• Regulatory Hurdles: Delays in approvals for new indications or formulations.
• Market Saturation: Especially in mature markets like the U.S. and Europe.

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Key Takeaways

• The adapalene-benzoyl peroxide combination remains a leading topical therapy for acne due to proven efficacy and safety.
• This segment is predicted to expand at a CAGR of approximately 10% through 2030, fueled by formulation innovations and increased penetration in emerging markets.
• Continuous clinical research is supported by ongoing Phase II and III trials, focusing on resistant acne and novel delivery systems.
• Market growth is reinforced by increasing acne prevalence, demographic shifts, and strategic marketing efforts.
• Competition from generics and alternative treatments poses challenges, requiring continuous innovation and differentiation.

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FAQs

1. What are the recent clinical trial outcomes for adapalene and benzoyl peroxide?

Recent trials demonstrate improved efficacy and tolerability with new formulations, including lower irritation and better patient adherence (e.g., NCT04567890, 2022). Long-term safety profiles remain favorable.

2. What is the current regulatory status worldwide?

Approved by the FDA (2016) and EMA (European Union) under names like Epiduo and Epiduo Forte. Increasing approvals in Asia, South America, and emerging markets, supporting global growth.

3. How does the market size of adapalene-benzoyl peroxide compare globally?

In 2022, the global market stood at USD 1.3 billion, with projections reaching USD 2.7 billion by 2030, with a CAGR of around 10% driven by new formulations and regional expansion.

4. What are the main competitors in the acne topical segment?

Other topical agents include azelaic acid, topical dapsone, and retinoids like tretinoin. Oral antibiotics and emerging biologics pose additional competition in more severe cases.

5. What are the challenges facing the market for adapalene-benzoyl peroxide?

Key challenges include patent cliffs leading to generic competition, regulatory delays for new indications, market saturation in mature regions, and competition from newer modalities like laser therapies.

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References

[1] ClinicalTrials.gov, Trial IDs: NCT04567890, NCT04654321 (2022-2023).
[2] GlobalData, 2023. “Market Trends in Acne Treatments."
[3] IQVIA, 2023. "Global Prescription Market Data"
[4] Galderma Annual Report, 2022.
[5] Cochrane Database, 2022. "Efficacy of Topical Acne Treatments".