CLINICAL TRIALS PROFILE FOR BENZOYL PEROXIDE

505(b)(2) Clinical Trials for 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
New Dosage	NCT02058628 ↗	Comparison of the Efficacy and Safety of Clindamycin + Benzoyl Peroxide Formulation With Azelaic Acid Formulation in the Treatment of Acne Vulgaris	Completed	GlaxoSmithKline	Phase 4	2014-02-21	This is a randomized, comparator-controlled, single-blind, parallel-group study. The current study proposes to compare a fixed-dose combination product containing 3% benzoyl peroxide (BPO) and 1% clindamycin against a cream containing 20% azelaic acid for the treatment of facial acne vulgaris. The results of the study will enable a better assessment of the safety and efficacy of the new dose regime (BPO 3% + clindamycin 1%) in comparison to a well established treatment. Based on the data more evidence based recommendations will be possible to improve the treatment of subjects with acne vulgaris. A total of 220 subjects will be enrolled and will have 5 study visits (Day 1, Weeks 2, 4, 8 and 12). The duration of the study will be over 12 weeks.
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Benzoyl Peroxide 2.5% and Used in Combination With Over the Counter Adapalene Gel 0.1% for Mild to Moderate Acne	Withdrawn	New York University School of Medicine	N/A	2018-08-07	This is a single-center prospective study of two standard-of-care treatments to evaluate the efficacy of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.
OTC	NCT04021524 ↗	BPO vs Hibiclens Soap for Surgical Preparation	Unknown status	University of Washington	Phase 4	2018-09-10	This is a randomized trial of benzoyl peroxide soap versus Hibiclens soap for surgical preparation. The objective is to determine whether benzoyl peroxide soap, commonly available in drug stores for over-the-counter acne treatment, is as or more effective than the standard surgical preoperative soap, Hibiclens soap (chlorhexidine gluconate), in reducing loads of Propionibacteria (Propi) on or under the skin of patients prior to shoulder arthroplasty (joint replacement).

All Clinical Trials for 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.
NCT00377000 ↗	A Pilot, Multi-Center, Patient Preference Study Comparing Two Clindamycin/Benzoyl Peroxide Gels.	Completed	Sanofi	Phase 4	2005-11-01	Evaluate patient preference factors comparing two clindamycin/benzoyl peroxide gels. One dispensed in a pump presentation, the other in a tube presentation.
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.

Clinical Trial Conditions for BENZOYL PEROXIDE

Condition Name

Condition Name for BENZOYL PEROXIDE
Intervention	Trials
Acne Vulgaris	80
Acne	14
Foot Dermatoses	3
Surgical Site Infection	2

Condition MeSH

Condition MeSH for BENZOYL PEROXIDE
Intervention	Trials
Acne Vulgaris	95
Skin Diseases	4
Foot Dermatoses	3
Infections	3

Clinical Trial Locations for BENZOYL PEROXIDE

Trials by Country

Trials by Country for BENZOYL PEROXIDE
Location	Trials
United States	245
Canada	23
India	15
Germany	14
China	9

Trials by US State

Trials by US State for BENZOYL PEROXIDE
Location	Trials
California	19
Texas	18
Pennsylvania	16
Florida	16
North Carolina	15

Clinical Trial Progress for BENZOYL PEROXIDE

Clinical Trial Phase

Clinical Trial Phase for BENZOYL PEROXIDE
Clinical Trial Phase	Trials
PHASE4	3
PHASE3	1
PHASE2	2

Clinical Trial Status

Clinical Trial Status for BENZOYL PEROXIDE
Clinical Trial Phase	Trials
Completed	86
Recruiting	9
Unknown status	8

Clinical Trial Sponsors for BENZOYL PEROXIDE

Sponsor Name

Sponsor Name for BENZOYL PEROXIDE
Sponsor	Trials
GlaxoSmithKline	20
Galderma	14
Galderma R&D	14

Sponsor Type

Sponsor Type for BENZOYL PEROXIDE
Sponsor	Trials
Industry	115
Other	54

Last updated: July 26, 2026

Benzoyl Peroxide Clinical Trials Update, Market Analysis, and Sales Projection (2026–2035)

Benzoyl peroxide (BPO) is a long-established topical anti-acne active with broad global availability across over-the-counter and prescription strengths (typically 2.5% to 10%). Current clinical-trials activity is dominated by formulation, vehicle, and combination approaches (eg, with antibiotics, retinoids, or keratolytics), plus newer delivery systems aimed at reducing irritation while preserving antimicrobial activity against Cutibacterium acnes. Market growth is driven by (1) high acne prevalence, (2) migration to leave-on gels and microsphere or controlled-release formats, and (3) fixed-dose combination products in key geographies.

The market is mature, pricing is generally low-to-mid per unit, and differentiation is primarily product-performance and tolerability rather than mechanism innovation. Sales projections are therefore most sensitive to (1) adoption of combination products, (2) penetration of pharmacy and clinic channels for regulated formulations, and (3) regulatory and payer positioning for prescription-strength products.

---

What clinical trials are active for benzoyl peroxide in 2024–2026?

What trial types are most common

Across recent trial postings and sponsor activity, BPO studies cluster into four buckets:

1. Vehicle and delivery-system optimization

   • Examples: gel base changes, emollient systems, microspheres, controlled-release or film-forming approaches.
   • Endpoints: erythema, scaling, dryness scores; lesion counts and inflammatory/non-inflammatory lesion reduction; adherence and tolerability.

2. Combination regimens

   • Common pairings: BPO with topical retinoids (eg, adapalene/tretinoin class), keratolytics, or antibiotics depending on geography and regulatory status.
   • Endpoints: time-to-response, proportion achieving lesion-count targets, irritation control versus monotherapy.

3. Adherence and irritation-reduction programs

   • Designs: randomized, within-subject or parallel arm trials comparing irritation and skin-barrier markers.
   • Endpoints: TEWL (transepidermal water loss), investigator global assessments, patient-reported burning/stinging, and discontinuation rates.

4. Pediatric and special-population evaluations

   • Trials that validate tolerability and dosing in younger age bands, often aligned with OTC-to-Rx switch points for certain strengths.

What the clinical signal typically shows

In most BPO-focused programs:

• Efficacy is broadly consistent with known class activity: reduction in inflammatory lesions is often comparable to established topical standards in head-to-head comparisons.
• The differentiator is irritation and discontinuation:
  • Newer vehicles and controlled-release systems tend to improve tolerability metrics (erythema and dryness) while preserving acne lesion reduction.
  • Combination regimens generally improve overall lesion outcomes versus monotherapy but must balance tolerability.

Trial pipeline implications

Because BPO is not mechanism-disruptive, trials are usually aimed at product differentiation, regulatory position (especially for Rx strengths), and life-cycle management via reformulation and combinations. This reduces binary clinical risk but increases competitive speed and the importance of IP around formulation and delivery.

---

How big is the benzoyl peroxide market and where is growth coming from?

Market segmentation that matters for projections

BPO market value is typically driven by:

• Strength and formulation form factor
  • Creams and gels are dominant.
  • Ointments and lotions exist but are generally smaller share.
  • Controlled-release or “gentler” marketed formats can command higher price per unit.
• Channel
  • OTC dominates unit volume.
  • Rx-strength products concentrate in dermatology and physician channels where combination products are common.
• Geography
  • North America and Europe lead in branded and dermatologist-adjacent products.
  • Asia-Pacific shows strong growth potential due to higher acne treatment penetration and expanding organized retail.

Growth drivers

• Product performance upgrades: irritation mitigation increases adherence and repurchase.
• Combination adoption: fixed combinations address under-treatment and adherence.
• Seasonal and demographic patterns: acne prevalence and cosmetic dermatology trends support steady demand.

Competitive dynamic

The category is crowded. Growth often comes from:

• switching consumers to higher-value formulations,
• expanding into combination regimens,
• and optimizing pack sizes and frequency of use to protect shelf placement.

---

What is the benzoyl peroxide revenue forecast through 2035?

Base-case top-line projection (global)

Using a mature-topical framework (low price elasticity, steady demand with modest value uplift from higher-performance vehicles and combinations), a reasonable planning range is:

• 2026 global market: ~USD 2.5–3.5 billion
• 2030: ~USD 3.0–4.5 billion
• 2035: ~USD 3.7–5.5 billion

Implied CAGR

• 2026–2030: ~5–7% value CAGR
• 2030–2035: ~4–6% value CAGR

Why value growth persists despite generic pressure

• Even where BPO itself is commoditized, product-level value is protected through:
  • controlled-release or irritation-reducing formulations,
  • combination IP (method/compound claims vary by jurisdiction),
  • brand equity at the product level (especially for dermatology channels).

Downside and upside bands for investors

• Downside case: ~3–4% value CAGR if OTC competition intensifies and Rx combination penetration slows.
• Upside case: ~6–8% value CAGR if higher-value formats gain share and dermatology prescribing expands.

---

Which benzoyl peroxide formulations are gaining share: gels, creams, or controlled-release?

Delivery systems and base chemistry

Share shifts have typically favored:

• leave-on gels with lower visible residue,
• vehicles engineered for reduced irritation (emollients and skin-barrier compatible bases),
• microsphere/controlled-release systems positioned for steadier drug availability and less stinging.

What “clinical outcomes” translate to commercial outcomes

• Lower irritation reduces discontinuation, which improves repeat purchase rates.
• Better tolerability supports longer treatment duration, improving outcomes and brand retention in prescribed regimens.

---

Does benzoyl peroxide have biosimilar or biologics-like competition risk?

No. BPO is a small-molecule, not a biologic, so there is no biosimilar pathway risk. Competition is instead driven by:

• generic reformulation and manufacturing cost,
• formulation differentiation (irritation and delivery),
• and combination product exclusivity where applicable.

---

What patents protect benzoyl peroxide products, and how strong is the IP landscape?

Practical patent reality for BPO

Because BPO is established, patent strength is concentrated in:

• formulation and delivery system claims
• fixed combination compositions
• method-of-use claims that can be jurisdiction-specific
• manufacturing method claims

Where IP risk is highest

• Basic BPO compositions in standard vehicles are generally easier to engineer around.
• IP risk is highest for products that rely on broad composition claims rather than narrow, testable formulation parameters.

What tends to endure

• Controlled-release profiles
• Specific excipient systems validated in irritation reduction
• Proven stability and release kinetics claims

---

What Orange Book status exists for benzoyl peroxide, and what is the generic entry risk?

BPO is widely available OTC, and many products fall outside the FDA-listed “drug product” patent linkage framework that governs Paragraph IV incentives for systemic drugs. Where FDA-listed, generic risk tends to be:

• high for basic strengths and standard vehicles,
• lower for patented combinations or proprietary delivery systems.

Generic entry risk for newer, higher-value formats depends on whether the formulation IP is narrow and whether the relevant patents are enforceable with remaining term.

---

How does benzoyl peroxide compare with topical retinoids, salicylic acid, and antibiotics?

Efficacy and tolerability positioning

• BPO vs retinoids: retinoids are often favored for comedonal acne patterns; BPO is strong for inflammatory components and antimicrobial effect.
• BPO vs salicylic acid: salicylic acid is keratolytic; BPO is antimicrobial and oxidizing, with irritation often linked to vehicle and concentration.
• BPO vs topical antibiotics: antibiotics can be more targeted for inflammatory lesions but carry resistance concerns; many stewardship pathways push toward BPO-centered regimens.

Commercial implication

BPO maintains a durable role because it fits multiple regimens and supports combination therapy while mitigating antibiotic-resistance concerns.

---

Which companies are the main players in benzoyl peroxide products?

The competitive landscape is split between:

• global consumer health and derm players with OTC brands,
• specialty derm product suppliers,
• and contract manufacturers supplying private-label BPO gels and creams.

Because the category is crowded and many products are private label, market power is often localized to:

• brand recognition in major markets,
• dermatology channel access for combination products,
• and distribution strength via pharmacy chains.

---

What market-entry scenarios are most realistic for new benzoyl peroxide products?

Scenario A: Reformulation with tolerability upgrade

• Goal: reduce irritation, increase adherence, and gain share in recurring acne regimens.
• Most defensible where clinical testing demonstrates lower TEWL and erythema scores at equal acne lesion reductions.

Scenario B: Fixed combination product launch

• Goal: better lesion reduction and improved adherence versus sequential therapy.
• Most defensible where combination IP exists or where proprietary formulation ensures stability and release.

Scenario C: Private-label scale entry

• Goal: compete on price and packaging.
• Most realistic for commodity vehicles and mainstream strengths.

---

Key Takeaways

• Benzoyl peroxide clinical activity remains centered on formulation and combination upgrades aimed at tolerability and adherence, not new mechanisms.
• The global market is mature but still expands with higher-value delivery systems and combination penetration.
• Revenue outlook supports a mid-single-digit value CAGR from 2026 through 2035, with differentiation driven by vehicle engineering and product-level IP.

---

FAQs

1. Why does irritation vary between benzoyl peroxide products?
   Irritation is heavily driven by formulation vehicle, concentration, and release profile rather than only benzoyl peroxide strength.

2. What are the most common benzoyl peroxide clinical trial endpoints?
   Lesion counts plus skin tolerability metrics such as erythema, scaling, dryness, and patient-reported burning or stinging.

3. Is benzoyl peroxide mainly a prescription or OTC category?
   It is primarily OTC globally, with prescription-strength and combination products more present in dermatology channels.

4. How do combination products affect benzoyl peroxide market share?
   They typically improve adherence and overall lesion outcomes, shifting consumers toward higher-value fixed regimens.

5. What is the biggest competitive barrier for a new benzoyl peroxide entrant?
   Matching or exceeding tolerability performance and achieving distribution access while navigating formulation-specific patent and regulatory constraints.

---

References

1. Bloomberg (analysis framework).
2. FDA Orange Book database (general regulatory framework for drug product patent listings).
3. ClinicalTrials.gov (benzoyl peroxide and topical acne formulation search results, general trial endpoint patterns).