Hidradenitis Suppurativa (HS)

The purpose of this study is to evaluate the pharmacokinetics, safety, and efficacy of povorcitinib in adolescent participants with moderate to severe hidradenitis suppurativa over a 54-week open-label treatment period.

Rollover study for participants from predetermined, Incyte-sponsored parent clinical trials of povorcitinib.

The medical and surgical treatment of hidradenitis suppurativa (HS) remains difficult to date. The search for new therapies for HS is a major challenge. The pathophysiology of HS, the similarities with Crohn's disease and the data in the literature suggest a role for the digestive flora in HS. The role of the intestinal microbiota has now been clearly demonstrated in the pathophysiology of chronic inflammatory bowel disease (IBD), and is suspected in many other diseases. Fecal microbiota transplantation (FMT) is the gold-standard treatment for recurrent Clostridioides Difficile infection, and is being investigated in a wide range of conditions. Our hypothesis is that FMT would improve inflammatory lesions of HS by modifying patients' digestive microbiota. Translated with DeepL.com (free version)

The Global Healthcare Study on Hidradenitis Suppurativa (GHSHS) is an international, multicenter observational study hosted by the University of Zurich (UZH) investigating healthcare access, treatment patterns, disease severity, and quality of life in patients with psoriasis. The study collects standardized clinical data from routine medical records to identify disparities in healthcare delivery and outcomes across different healthcare systems.

This is a post-approval commitment study to evaluate efficacy, and safety of two dosing regimens of secukinumab (AIN457), 300 mg every four weeks (Q4W) and every two weeks (Q2W), in Chinese adult patients with moderate to severe hidradenitis suppurativa (HS).

This is a double-blind, placebo-controlled study where subjects are participating for approximately 36 to 40 weeks. The study compares how well BFB759 works and how safe it is compared with a placebo.

Hidradenitis Suppurativa (HS) is a long-lasting skin condition that causes painful lumps and infections. In severe cases, patients need surgery to remove the affected skin. After surgery, a wound dressing called a wound matrix is placed over the area to help the skin heal. This study will compare two different wound matrices: Restrata®, which is the current standard treatment. Pelashield™ PainGuard™, a newer dressing that contains silver to reduce bacteria and lidocaine to help with pain. The goal of this research is to find out if Pelashield™ PainGuard™ helps patients heal better after surgery than Restrata®. We will look at: How quickly healthy granulation tissue (new healing tissue) forms How soon the wound is ready for the second surgery to apply a skin graft How often infections happen after surgery How much narcotic (opioid) pain medication patients need after surgery Patients who receive Pelashield™ PainGuard™ will be enrolled in the study going forward (prospective group). Patients who previously had surgery with Restrata® will be included through a review of their medical records (retrospective group). No additional procedures will be done outside of standard surgical care.

The goal of this clinical trial is to learn if CIT-013 works to treat Hidradenitis Suppurativa in adults. It will also learn about the safety of CIT-013. The main questions it aims to answer are: Does CIT-013 lower the disease activity of HS patients? What medical problems do participants have when receiving CIT-013? Researchers will compare CIT-013 to a placebo (a look-alike substance that contains no drug) to see if CIT-013 works to treat the symptoms of HS. Participants will: Take receive 50 or 100 mg CIT-013 or placebo every other week for 12 weeks Visit the clinic once every 2 weeks for checkups and tests Keep monitor their symptoms during this period

The goal of this clinical trial is to learn if high-dose radiotherapy can provide sustained disease relief in moderate to severe, treatment resistant Hidradenitis suppurativa patients; could include any of the following: any sex/gender, and those greater then 18 years old. The main question\[s\] it aims to answer are: Outcome measure 1: Will radiotherapy change the number of inflammatory nodules, abscesses, and draining sinus tracts in the treated axilla compared with the untreated axilla? Outcome measure 2: Will radiotherapy positively change a patient's quality of life, pain levels and symptom burden? Participants will receive radiotherapy to one axilla affected by hidradenitis suppurativa. The contralateral axilla will not receive radiotherapy and will continue receiving the standard treatment regimen. Participants will... * Attend a baseline dermatology skin evaluation, complete multiple surveys and an optional participation in a biopsy * Attend multiple radiation sessions over 5 weeks * Attend 2 follow up visits with dermatology for skin evaluation, complete follow up surveys, and an optional biopsy.

The purpose of this study is to evaluate whether Alexandrite laser treatment is non-inferior to Nd:YAG (neodymium-doped yttrium aluminum garnet) laser treatment of hidradenitis suppurativa (HS).

The purpose of this study is to assess efficacy, safety, pharmacokinetics and immunogenicity of subcutaneous SCT650C in patients with Moderate to Severe Hidradenitis Suppurativa

The goal of this clinical trial is to learn if combining an IL-17A/F monoclonal antibody with non-ablative fractional laser therapy works and is safe in patients with mild to moderate hidradenitis suppurativa (HS). The main questions it aims to answer are: Does the combination treatment reduce HS symptoms compared to before treatment? What are the main side effects of this combination treatment? Researchers will compare how participants feel and look after treatment to their own condition before treatment. Participants will: Get the combined treatment once every 4 weeks for 16 weeks Give skin and blood samples before the first treatment and at the last treatment visit Have a final check-up 8 weeks after the last treatment

To assess the emergence, type, severity, and potential causality of delayed adverse events following administration of a gene-modified Treg therapeutic.

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

Hidradenitis Suppurativa (HS) is a chronic, debilitating inflammatory skin disease characterized by painful, purulent lesions primarily in skin folds. Its pathogenesis remains poorly understood. The clinical benefit observed with both antibiotics and immunosuppressive therapies suggests HS may involve an abnormal immune response to skin microbiota. Mucosal-associated invariant T (MAIT) cells are immune cells that bridge innate and adaptive immunity and are known to regulate microbial flora. Dysfunctional MAIT cells have been implicated in autoimmune diseases such as type 1 diabetes, inflammatory bowel diseases, and psoriasis. Preliminary data from the VERIMMUNE study (NCT05735925) indicate that HS patients show a depletion of circulating MAIT cells and increased infiltration of CD8+ MAIT cells in lesions, associated with reduced activation and greater disease severity. These findings support the hypothesis that MAIT cell dysfunction plays a central role in HS and may serve as a biomarker for treatment response. This exploratory study aims to (Primary) characterize the phenotype and frequency of MAIT cell subsets in the skin and blood of HS patients compared to controls with other inflammatory skin diseases (psoriasis and back-acne); and to determine whether MAIT cell phenotype before treatment predicts clinical response to biologic agents. The study will recruit adults (18-65 years) with moderate-to-severe HS and matched controls with plaque psoriasis, or back-acne, or impetigo. All HS participants must be biologic-naïve at baseline and will be treated per national guidelines (adalimumab, secukinumab, or bimekizumab). No therapeutic intervention is imposed; patients are followed according to usual care. Skin and blood samples will be collected before and after treatment to assess immune profiles. To minimize bias HS patients will be age/sex-matched with controls; only patients with active, inflammatory HS lesions will be included; controls were selected to represent related yet distinct pathologies: back-acne (follicular but distinct mechanism), psoriasis (different lesion type, shared type-17 inflammation) and impetigo (skin bacterial infection). The Immunophenotyping strategy will use high-dimensional flow cytometry (Cytek® Aurora); researchers will analyze immune cell subsets (e.g., B cells, γδ T cells, NK cells, ILCs, MAIT, NK-T) in skin and blood. Specific markers for activation (CD69, PD-1, ICOS), differentiation (CCR7, CD45RA), proliferation (Ki-67), cytokine receptors, and chemokines will be assessed. The primary endpoint will be the frequency of MAIT cells in lesional vs. non-lesional skin and blood compared to controls before and after 12 weeks of biologic agent. The secondary endpoints will be changes in MAIT cell phenotype after 12 weeks of treatment, correlation with clinical improvement (defined by IHS4-55 response: ≥55% reduction in IHS4 score) and MAIT cell functions (assessed in vitro before and after treatment, anti-bacterial activity, capacity to proliferate and to be activated). This is a prospective, monocentric, exploratory study with intra-individual comparison and external active controls. The study falls under category 2 (interventional research with minimal risks). Clinical data, biopsy samples, and immune profiles will be collected before and after biologic therapy in moderate-to-severe HS patients (IHS4 ≥4), biologic-naïve, eligible for biologic agents treatment, with no antibiotics or immunosuppressive drugs in the prior month. The controls will be adults with psoriasis or back-acne or impetigo (no follow-up for control patients). This study has no direct therapeutic benefit for participants. However, it offers detailed clinical follow-up and may significantly improve understanding of HS pathogenesis. Known procedural risks (local anesthesia, biopsy, venipuncture) are minimal and mitigated through standard precautions and inclusion criteria. Expected benefits and impact : clarify the role of MAIT cells in HS pathophysiology; identify novel immune biomarkers predictive of biologic therapy response; support future therapeutic stratification and personalized treatment approaches in HS.

The main objective of this study is to determine if NAV-240 works more effectively than a dummy treatment (placebo) for participants with moderate-to-severe HS. The main endpoint of this study is the percentage of participants achieving Hidradenitis Suppurativa Clinical Response (HiSCR) 75 at Week 16, meaning at least a 75% reduction in inflamed skin bumps (abscess and inflammatory nodule (AN) count) with no increase in number of abscesses or draining tunnels (channels under the skin that leak fluid or pus) compared to the baseline (start of the study). Participants will: * Receive NAV-240 dose 1, NAV-240 dose 2 or placebo as a drip into the veins (intravenous infusion). * Visit the clinic up to 9 times for checkups and tests over 22 weeks. * Complete a daily diary about their skin pain.

Despite the significant impact of HS on patients' quality of life (QoL) and daily functioning, there remains limited real-world evidence describing the burden of this condition in Canada. HS is an under-recognized and often misdiagnosed condition, with a substantial psychological and physical burden on patients. Understanding the real-world experiences of individuals living with HS in Canada can help identify unmet needs and inform patient-centered care approaches.

This study aims to assess the treatment satisfaction of HS patients newly started on secukinumab in Saudi Arabia, in terms of patient reported convenience, perceived safety, perceived effectiveness and global treatment satisfaction as measured by the treatment satisfaction questionnaire for medication (TSQM) at week 24 among moderate to severe HS patients.

The purpose of this registration is to list Managed Access Programs (MAPs) related to AIN457, secukinumab

Secukinumab is currently approved in Europe, US and China for the treatment of moderate to severe HS as a biologic agent targeting IL-17A.Two phase III clinical trials (SUNSHINE and SUNRISE) showed that 300 mg s.c. every 2 weeks resulted in 42% to 45% of patients achieving a clinical response (HiSCR) to HS, and the efficacy was sustained through 52 weeks.However, we found in clinical practice that some HS patients present with localized lesions (small areas of involvement, affecting only 1-2 anatomic areas) that are resistant to conventional therapy, and have not yet fulfilled surgical indications, and the need for systemic biologic therapy is controversial.Such patients often experience inadequate response or slow onset of action when they receive secukinumab by routine subcutaneous injection - possibly related to inadequate drug concentration in the focal lesional area and limited local anti-inflammatory effects after systemic administration.In addition, side effects of conventional subcutaneous injection system are greater, and the application is limited in some patients, so it is necessary to explore more appropriate and safer drug delivery method for localized skin lesions.Localized HS, local injection of lesions may enhance anti-inflammatory effects while reducing systemic exposure by increasing drug concentrations at the lesion site.Therefore, exploring novel modes of administration of secukinumab has practical clinical implications based on clinical practice needs and the context of the previous literature.In summary, by exploring the efficacy and safety of local skin injection of secukinumab, this study may provide a new strategy for the treatment of limited HS with sufficient scientific rationale and significant potential benefits and manageable risks.

Hidradenitis suppurativa (HS) is a long-lasting skin condition that causes painful lumps, abscesses, and tunnels in areas such as the armpits and groin. HS begins around the hair follicle; when the follicle becomes blocked and inflamed, new lesions form. Prior clinical studies of lasers that act on the hair follicle have shown improvement in HS symptoms, and a 1726-nm diode laser-designed to selectively heat oil glands within the follicle-has reduced inflammatory lesions in acne with good tolerability across many skin types. This study will test whether a 1726-nm diode laser can safely reduce inflammatory HS lesions in Hurley stage I-II disease. Adults with bilateral (right/left) affected areas will be randomized so that one side receives active laser treatment and the other side receives a sham procedure. Participants will have three treatment sessions over 8 weeks and follow-up through Week 24 while continuing their stable HS medications. The primary outcome is the percent change in abscess and inflammatory nodule counts on the treated side versus the sham side at Week 16. Secondary outcomes include validated HS responder scores, pain, quality of life, flare rate/antibiotic use, and safety. Results may support a non-ablative, follicle-directed option for early HS.

The goal of this observational study is to comprehensively profile six immune-mediated inflammatory diseases, including atopic dermatitis (AD), plaque psoriasis (PSO), hidradenitis suppurativa (HS), cutaneous T-cell lymphoma subtype mycosis fungoides (MF), chronic spontaneous urticaria (CSU), and cutaneous lupus erythematosus (CLE) in daily practice. Data will be compared with data from healthy volunteers. This study is part of the larger NGID (Next Generation ImmunoDermatology) initiative, of which the main objective is to develop infrastructure that enables personalised patient care. The main questions the SKINERGY study aims to answer are: * Which biomarkers can discriminate between responders and non-responders to treatment in patients with AD, CLE, CSU, HS, MF, and PSO? * How do disease-related biomarkers in patients with AD, CLE, CSU, HS, MF, and PSO differ from those in healthy volunteers? * Which (multi-omics) biomarkers are associated with disease subtypes and predict response or non-response to (targeted) therapies in daily clinical practice? * How do biomarker profiles compare across different cohorts of patients with immune-mediated inflammatory skin diseases (AD, CLE, CSU, HS, MF, PSO) * How do biomarker levels change over time in response to treatment in these patient populations? * Which skin tissue biomarkers are associated with disease progression or treatment response? * How do the genomic profiles of patients differ across diseases or correlate with treatment outcomes? * Can additional imaging biomarkers enhance the characterization of disease profiles or treatment monitoring over time? Researchers will compare both differences beween patients within a disease group in different treatment arms, as well as patients within the same treatment arm. Additionally, biomarker profiles of patients with different diseases will be evaluated. These comparisons will be made to see if shared or distinct biomarker patterns exist across diseases and treatments, which could inform patient stratification, optimize therapeutic decision-making, and identify potential targets for future interventions. Participants will start medication according to national guidelines for the treatment of their inflammatory skin disease (AD: Cyclosporin A, anti-IL4/13, or anti-JAK; PSO: anti-TNF, anti-IL23, ani-IL17, anti-TYK2; HS: anti-TNF, anti-IL17; MF: CHLORM, TSC, PUVA-UV-B; CSU: anti-IgE, Cyclosporin A, anti-BTK\*; CLE: TSC, HCQ, MTX) \*once approved and reimbursed in the Netherlands Participants will: * Take the prescribed medication for their skin disease (in line with standard care in the Netherlands). * Visit the clinic for a study visit combined with their standard care appointment 3 times (baseline, month 3, and month 6. An additional 4th visit at month 12 is optional). * Fill in an online set of questionnaires from home, 3 times during the study period (an additional 4th time is optional). * Patients with CSU fill in the UAS7 (and if applicable the AAS7) daily for the study period.

This single-center, prospective, observational study aimed to evaluate the efficacy and safety of Secukinumab in treating moderate-to-severe hidradenitis suppurativa (HS). The study was conducted from June 1, 2025, to June 1, 2026, and all participants were treated at the Department of Dermatology, Peking Union Medical College Hospital. The study was approved by the Clinical and Research Ethics Committee of the Chinese Academy of Medical Sciences, Peking Union Medical College Hospital (Ethics Approval No. I-24PJ1844). All procedures involving human participants adhered to the Declaration of Helsinki. Written informed consent form was signed and obtained from the participant.

The goal of this clinical trial is to evaluate the safety, tolerability, PK, and PD of single and multiple ascending doses of QLS12010 Capsules and the effect of food on their PK profiles in healthy adult participants and participants with atopic dermatitis. This study consists of four parts: Part A is a single ascending dose (SAD) study, once sufficient safety and PK data are obtained from the SAD cohorts, the SMC will determine the dosage of initial cohort in Part B, which consists of three multiple ascending doses (MAD) cohorts of QLS12010 Capsules. Part C is a randomized, open-label, two-cycle, crossover food effect study under fasting and fed (high-fat meal) conditions. Part D is to evaluate the safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD) characteristics, and preliminary efficacy of QLS12010 Capsules following multiple oral administrations in adult participants with atopic dermatitis (AD).

The purpose of the study is to evaluate the safety and type 1 Interferon (IFN) neutralization in patients with refractory severe Hidradenitis Suppurativa (Hurley stage III) after transfusion of plasma containing high titer anti-IFN-1 autoantibodies.