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IDP-126

Phase 3

Acne Vulgaris | Small molecule | Dermatology |Bausch Health Companies Inc.|Last Updated: Oct 30, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindACTIVE_CONTROLLEDDMCBiomarker
Total Trials5
Total Enrollment1,851
FDA Designations
No designations recorded
Clinical Trials (5)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04214652Clinical Study Comparing the Efficacy and Safety of IDP-126 Gel in the Treatment of Acne VulgarisPHASE3 COMPLETED 180Jan 27, 2020Mar 18, 2021Feb 1, 202413 United States, Canada
NCT04214639Clinical Study Comparing the Efficacy and Safety of IDP-126 Gel in the Treatment of Acne VulgarisPHASE3 COMPLETED 183Jan 17, 2020Jan 18, 2021Feb 1, 202413 United States, Canada
NCT04892706Study to Compare the Safety and Efficacy of IDP-126 Gel to Epiduo® Forte Gel and Vehicle GelPHASE2 COMPLETED 686Jun 11, 2021Sep 28, 2022Oct 30, 202542 United States, Belgium +1
NCT03170388A Phase 2, Multicenter, Randomized, Double-Blind, Vehicle Controlled, Parallel-Group, Clinical Study in the Treatment of Acne VulgarisPHASE2 COMPLETED 741Oct 5, 2017Apr 23, 2019Nov 10, 202134 United States, Canada
NCT03653403Open-Label, Randomized Study Evaluating the Absorption and Systemic Pharmacokinetics of Topically Applied IDP-126 Gel in Comparison With Control GelPHASE1 COMPLETED 61Aug 8, 2018Jun 19, 2019Oct 21, 20191 United States
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Study Endpoints
Primary Endpoints
Absolute Change From Baseline to Week 12 in Inflammatory Lesion Counts
12 weeks
Absolute Change From Baseline to Week 12 in Non-inflammatory Lesion Counts
12 weeks
Percentage of Participants With Success on the Evaluator's Global Severity Score
12 weeks

Success was defined as at least a two grade reduction and clear or almost clear at Week 12. The Evaluator's Global Severity Score has grades for acne severity of 0 (Clear), 1 (Almost Clear), 2 (Mild), 3 (Moderate), and 4 (Severe), with higher scores indicating worse severity.

Absolute Change From Baseline to Week 12 in Lesion Counts.
Baseline to Week 12

Inflammatory and non-inflammatory lesion counts were collected starting from the Baseline Visit.

Percentage of Subjects Who Achieve at Least a Two-grade Reduction From Baseline and Are "Clear" or "Almost Clear" at Week 12 in the Evaluator's Global Severity Score.
Baseline to Week 12

The Evaluator's Global Severity Score has grades for acne severity of 0 (Clear), 1 (Almost Clear), 2 (Mild), 3 (Moderate), and 4 (Severe), with higher scores indicating worse severity.

Inflammatory Lesion Counts
Baseline to Week 12

Absolute change from Baseline to Week 12 in mean inflammatory lesion counts

Non-inflammatory Lesion Counts
Baseline to Week 12

Absolute change from Baseline to Week 12 in mean non-inflammatory lesion counts

Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability]).
All AEs will be followed from onset of the adverse event through the end of Study Day 28 visit

During the study, subjects will be assessed for the occurrence of new and ongoing AEs. Descriptions of AEs will include the dates of onset and resolution, maximum severity, seriousness, action taken regarding study drug, corrective treatment, outcome, and investigator's assessment of causality. Worsening of disease will not be considered an AE unless it results in discontinuation of the subject from the study or requires medical intervention prohibited by the protocol.

Secondary Endpoints
Inflammatory Lesion Count Percentage Changes at Week 4, 8, and 12
Baseline to Week 4, 8, 12
Noninflammatory Lesion Count Percentage Changes at Week 4, 8, and 12
Baseline to Week 4, 8, 12
Percentage of Participants With at Least a Two Grade Reduction on the Evaluator's Global Severity Score at Week 12
12 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
IDP-126 GelEXPERIMENTAL -
IDP-126 Vehicle GelPLACEBO_COMPARATOR -
Epiduo® Forte GelACTIVE_COMPARATOREpiduo® Forte Gel (adapalene 0.3%/ 2.5% BPO) applied once daily for 12 weeks
IDP-126 Component AACTIVE_COMPARATORComponent A
IDP-126 Component BACTIVE_COMPARATORComponent B
IDP-126 Component CACTIVE_COMPARATORComponent C
Control GelACTIVE_COMPARATORGel
Interventions
NameTypeDescription
IDP-126 GelDRUGIDP-126 Gel applied topically to the face once daily for 12 weeks.
IDP-126 Vehicle GelDRUGIDP-126 Vehicle Gel applied topically to the face once daily for 12 weeks.
Epiduo® Forte GelDRUGGel applied to face once daily in the evening.
IDP-126 Component ADRUGComponent A
IDP-126 Component BDRUGComponent B
IDP-126 Component CDRUGComponent C
Control GelDRUGgel
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Eligibility Criteria
Age Range9 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites13

Inclusion Criteria: * Male or female at least 9 years of age and older. * Written and verbal informed consent must be obtained. Subjects less than age of consent must sign an assent for the study and a parent or a legal guardian must sign the informed consent (if subject reaches age of consent duri...

Countries:United StatesCanadaBelgium
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