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Condition Guide

New Treatments & Clinical Trials for Hidradenitis Suppurativa

Last updated May 2026Data from ClinicalTrials.gov98 active trials
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Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease characterized by painful nodules, abscesses, and tunnels in skin folds including the armpits, groin, and buttocks. It is frequently misdiagnosed and underestimated in severity, causing significant pain, scarring, and profound effects on quality of life, and is associated with metabolic syndrome, inflammatory bowel disease, and depression.

What's actually going on in research

Adalimumab, a TNF inhibitor, became the first approved biologic for HS and reduces flares in many patients, but a large proportion do not achieve adequate control. Secukinumab, an IL-17A inhibitor, has also received approval for moderate-to-severe HS. Trials are now testing IL-1 inhibitors, JAK inhibitors, and complement-targeting drugs. Surgical approaches for advanced tunneling disease are also being studied in combination with systemic therapy.

IL-17 and IL-1 pathway blockade

Secukinumab is now approved for HS, and bimekizumab (an IL-17A/F inhibitor) and IL-1 inhibitors such as bermekimab and lutikizumab are in late-stage trials, targeting key inflammatory cytokines.

JAK inhibitor therapy

Oral JAK inhibitors including povorcitinib and other selective JAK1 blockers are in trials for HS, offering a convenient oral option for patients seeking an alternative to injectable biologics.

Complement pathway blockade

Avacopan and other complement inhibitors are being tested in HS based on evidence of complement activation in HS lesions, providing a novel mechanistic approach to reducing neutrophil-driven inflammation.

What to know before you search

Eligibility depends on HS severity (Hurley stage), lesion location, prior biologic use, and associated conditions such as inflammatory bowel disease.

What types of trials are currently open

  • Biologic therapy trialsTesting IL-17, IL-1, and TNF blockers with varying mechanisms to control HS flares and scarring.
  • JAK inhibitor trialsEvaluating oral small molecules targeting JAK pathways as alternatives to injectable biologics.
  • Complement inhibitor trialsTesting drugs that block complement activation to reduce neutrophil-driven inflammation in HS.
  • Surgical and combined modality trialsStudying surgery, laser therapy, and their combination with systemic drugs for tunneling disease.
  • Quality of life trialsAssessing pain control, psychological impact, and outcomes measures specific to HS.

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