Safety and Efficacy of Roflumilast Foam 0.3% in Adolescent and Adult Subjects With Hidradenitis Suppurativa (ARQ-MA-000260)

July 8, 2026 updated by: Harrison Dermatology

An Open-Label Single Center Study Evaluating the Safety and Efficacy of Roflumilast Foam 0.3% in Adolescent and Adult Subjects With Hidradenitis Suppurativa

This study investigates the efficacy of topical roflumilast foam in patients with HS.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

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.

Detailed Description

Hidradenitis Suppurativa (HS) is a chronic inflammatory skin condition that causes painful and inflamed lumps and abscesses often in the underarms, groin and buttocks. The purpose of this study is to assess the safety and efficacy of QD 0.3% topical roflumilast foam in patients with HS over 16 weeks, with or without previous treatment. The drug involved in this study, 0.3% topical roflumilast foam, is investigational.

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 (Estimated)

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.
10

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 2

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 Contact Backup

Study Locations

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Male or female subjects aged 12 years or older at time of consent (or assent).
  • Participants and/or legal guardians are legally competent to sign and give informed consent or assent (for adolescents).
  • Diagnosis of Hidradenitis Suppurativa (HS) based on clinical history and physical examination for at least 3 months.
  • Diagnosis of HS (Hurley Stage I or II) with a total abscess and inflammatory nodule (AN) count of at least 4 to ≤10, with no draining tunnels at screening and baseline visits, affecting at least one distinct anatomical region.
  • Agreement to NOT use topical and systemic antibiotics and intralesional steroids for treatment of HS during the study.
  • Agreement to NOT use a diluted bleach bath or topical antiseptic washes containing chlorhexidine gluconate or benzoyl peroxide on the areas affected by HS lesions during the study.
  • Subjects who have had surgery in the treatment area must be at least 3 months post-procedure (applies to deroofing/marsupialization or excision, not incision and drainage).
  • Females of childbearing potential must have a negative urine pregnancy test at Screening and Baseline/Day 1 and agree to use at least one highly effective or barrier method of contraception throughout the study.

Females of non-childbearing potential must be premenarchal, postmenopausal (≥12 months spontaneous amenorrhea), or surgically sterile.

-In good health as judged by the Investigator based on medical history, targeted physical examination, and vital signs. Subjects and parent(s)/legal guardian(s) must be reliable and capable of adhering to the protocol and visit schedule.

Exclusion Criteria:

  • Medical condition or physical examination abnormality that would prevent study participation or place the subject at significant risk, as judged by the Investigator.
  • Inability to discontinue prohibited medications or treatments before Baseline or during the study.
  • Presence of draining tunnels at Screening or Baseline.
  • Unwillingness to refrain from prolonged sun exposure or tanning beds/other artificial light-emitting devices for 4 weeks before Baseline and during the study.
  • Skin conditions other than HS that could interfere with evaluation of study medication.
  • Conditions in the treatment area that could confound efficacy measurements.
  • Known allergy to excipients in roflumilast foam.
  • Use of oral roflumilast (Daxas® or Daliresp®) within 4 weeks before Baseline.
  • History of severe depression, suicidal ideation, or suicidal behavior at Screening/Baseline.
  • Pregnant, planning pregnancy during the study, or breastfeeding.
  • Previous treatment with roflumilast cream or foam or current roflumilast use for another indication expected to continue during the study.
  • Major surgery within 4 weeks before Baseline or planned during the study.
  • History of chronic alcohol or drug abuse within 6 months before Screening.
  • History of cancer within 5 years, except fully treated basal cell carcinoma, cutaneous squamous cell carcinoma, or carcinoma in situ of the cervix.
  • Parent(s)/legal guardian(s) or subjects unable to communicate, read, or understand the local language, or otherwise unsuitable for participation in the Investigator's opinion.
  • Family members of the clinical study site, study staff, sponsor, or family members of enrolled subjects living in the same household.
  • Known or suspected severe renal insufficiency or moderate to severe liver impairment (Child-Pugh B or C).

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

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: Roflumilast Foam 0.3

Experimental: Roflumilast 0.3% topical foam Roflumilast 0.3% topical foam to be applied QD to all active fields for the duration of the 16-week trial.

Interventions:

Drug: Roflumilast 0.3% topical foam
Drug: Roflumilast 0.3% topical foam
Roflumilast 0.3% topical foam applied once daily (QD) to all active hidradenitis suppurativa lesions for 16 weeks.

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
Change from Baseline in Abscess and Inflammatory Nodule (AN) Count at Week 16
Time Frame: Baseline and Week 16
Mean change from baseline in the total abscess and inflammatory nodule (AN) count. AN count is the total number of abscesses and inflammatory nodules assessed at baseline and week 16.
Baseline and Week 16

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.
Harrison Dermatology

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: HARRISON NGUYEN, MD, MBA, MPH, FAAD

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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 (Estimated)

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 10, 2026

Primary Completion (Estimated)

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.
March 10, 2028

Study Completion (Estimated)

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.
December 10, 2028

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 1, 2026

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 7, 2026

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.
July 8, 2026

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.
July 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.
July 8, 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.
July 1, 2026

More Information

Terms related to this study

Keywords

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.
  • ARQ-MA-000260

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

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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