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Clinical trials hub

Clinical Trials for Hidradenitis Suppurativa

Understand how trials work, what taking part may involve and which HS study locations may currently be open in Germany.

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Clinical trials have helped create treatment options that are available for hidradenitis suppurativa today and continue to investigate new approaches. Learning about a study does not mean that you have to participate. This hub can help you understand how trials work, what participation may involve and which study locations may currently be open in Germany.

Information on this website cannot determine whether a clinical trial is suitable for you. Only the study team can confirm eligibility after reviewing the full study criteria and your individual circumstances.

Why clinical trials matter for HS

For many years, people with hidradenitis suppurativa had few treatments that were formally tested and approved for the condition. Clinical trials changed that. Carefully designed studies are how a promising idea becomes evidence — and how that evidence eventually becomes a treatment a doctor can prescribe.

Trials also protect patients. They measure not only whether a treatment helps, but how often side effects occur, so benefits and risks can be weighed honestly. Some trials show that a treatment does not work well enough, which is just as important to know.

How to use the Trial Finder

The Trial Finder searches the public ClinicalTrials.gov registry for HS studies with locations in Germany. Enter a German postal code, choose how far you could travel, and optionally add your age or the type of research you want to see.

The finder shows only studies with at least one German location that is recruiting now or expected to open. It checks each individual site — not just the study's overall status — because a large international trial can be labelled ‘recruiting’ even when its German site is already closed.

  • Recruiting now: at least one nearby location is registered as recruiting.
  • Expected to open: a nearby location is registered as not yet recruiting and may not accept enquiries yet.
  • Results are sorted by status and distance, never by ‘best’ or ‘most suitable’.

What a search result does and does not mean

Appearing in the results means a study matches your search settings — a condition, a status and a nearby location. It does not mean you are eligible, and it does not mean the treatment would help you.

Eligibility depends on detailed criteria that only a study team can apply, using your full medical history. The finder never tells you that you qualify. Use it to find studies worth asking about, then talk to the study team and your own doctor.

Scientific research, editorial review, and sources

The articles in this hub separate trial results from regulatory approval, and approved medicines from investigational treatments. Facts about specific trials and approvals are drawn from ClinicalTrials.gov, the European Medicines Agency, the U.S. Food and Drug Administration, peer-reviewed publications and recognised patient-research organisations (EUPATI, CISCRP). Live study data comes directly from ClinicalTrials.gov at the moment you search.

Editorial review: July 2026. This hub is written and reviewed by Dr. Dennis Kwiatkowski (biochemist). It is educational and does not replace advice from qualified healthcare professionals or a study team.

Prepare

Questions to discuss with a dermatologist or study team

You never have to decide alone or on the spot. These are reasonable things to ask before considering any study.

Is this study right for my situation?

Ask whether your form of HS, your history and your other health conditions fit what the study is looking for — and what the alternatives are.

Tip: Bring a short summary of your diagnosis, treatments tried and current medicines.

What would taking part actually involve?

Ask about visit frequency, tests, photographs, the chance of receiving a placebo, and how long participation lasts.

Tip: Our downloadable checklist lists the questions worth asking a study team.

What happens to my current treatment?

Ask whether you would need to pause or change any current HS treatment, and who to contact if your symptoms get worse during the study.

Important: Never stop or change treatment on your own — discuss it with your doctor and the study team first.

Learning creates no obligation

  • Reading about a study does not commit you to anything.
  • Participation is always voluntary, and you can leave a trial at any time.
  • You can be interested and still not meet a study's criteria — that is normal.
  • An investigational treatment may or may not provide a direct benefit.

What this hub cannot do

  • It cannot confirm whether you are eligible for any study.
  • It cannot tell you that a treatment is safe or effective for you.
  • It cannot replace a conversation with a study team or your own doctor.
  • It does not recommend any specific study, sponsor or treatment.

Internal links

Sources and standards

  1. ClinicalTrials.gov — public registry of clinical studies U.S. National Library of Medicine
  2. European Medicines Agency — medicine authorisations EMA
  3. EUPATI — patient education on medicines research and development European Patients' Academy on Therapeutic Innovation
  4. Understanding clinical trials as a participant CISCRP (Center for Information and Study on Clinical Research Participation)