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Hidradenitis SuppurativaPhase 2/3NCT05819398

Lunsayil 1: A Study to Test Whether Spesolimab Helps People With a Skin Disease Called Hidradenitis Suppurativa

A Phase 2/3 study testing Spesolimab i.v. and Spesolimab s.c. in people with Hidradenitis Suppurativa, run by Boehringer Ingelheim at 162 sites in 35 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This study is open to adults with moderate to severe hidradenitis suppurativa (HS). The purpose of this study is to find out whether a medicine called spesolimab helps people with HS. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hidradenitis Suppurativa
What is being tested?
Spesolimab i.v. and Spesolimab s.c.
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
209 participants
Where
162 sitesin 35 countries
Study dates
17 Apr 2023to 31 Mar 2025
Phase
Phase 2/3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Of full age of consent at screening.
  • Signed and dated written informed consent in accordance with International Council on Harmonisation-Good clinical practice (ICH-GCP) and local legislation prior to admission to the trial.
  • Moderate to severe HS.
  • HS lesions in at least 2 distinct anatomic areas.
  • Biologic naive or Tumor Necrosis Factor inhibitor (TNFi)-exposed for HS.
  • For biologic naïve, inadequate response to an adequate course of appropriate oral antibiotics for treatment of HS in the last 1 year prior to the Baseline visit, as per investigator discretion. All participants must have previous exposure to antibiotics for HS.
  • Total AN count of greater than or equal to 5.
  • Total dT count of at least 1 at Baseline visit. Further inclusion criteria apply.

Who cannot join

  • Participants who must or wish to continue the intake of restricted medications or any drug considered likely to interfere with the safe conduct of the trial.
  • Prior exposure to any immunosuppressive/immunomodulatory biologic other than TNFi for HS.
  • Prior exposure to Interleukin 36 receptor (IL-36R) inhibitors including spesolimab.
  • Treated with any investigational device or investigational drug of chemical or biologic nature within a minimum of 30 days or 5 half-lives of the drug, whichever is longer.
  • Women who are pregnant, nursing, or who plan to become pregnant while in the trial.
  • Participants with history of allergy/hypersensitivity to the systemically administered trial medication agent or its excipients.
Show all 9Show fewer
  • Participants with a transplanted organ (with exception of a corneal transplant >12 weeks prior to screening) or who has ever received stem cell therapy (e.g., Remestemcel-L).
  • Participants with any documented active or suspected malignancy or history of malignancy within 5 years prior to the screening visit, except appropriately treated basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or in situ carcinoma of uterine cervix.
  • Further exclusion criteria apply.

Trial locations and contacts

162 sites in 35 countries.

162 sites in 35 countries

United States19 sites
  • University of Michigan Health System

    Ann Arbor, Michigan, 48109

  • Oakland Hills Dermatology, PC

    Auburn Hills, Michigan, 48326

  • Medical University of South Carolina

    Charleston, South Carolina, 29425

  • AXIS Clinicals

    Fargo, North Dakota, 58103

  • First OC Dermatology

    Fountain Valley, California, 92708

  • Palmetto Clinical Trial Services

    Greenville, South Carolina, 29615

  • Center for Clinical Studies-Houston-58806

    Houston, Texas, 77004

  • Dawes Fretzin Clinical Research Group, LLC-Indianapolis -68995

    Indianapolis, Indiana, 46250

  • Dermatology Research Associates

    Los Angeles, California, 90045

  • Skin Sciences, PLLC

    Louisville, Kentucky, 40217

  • Ziaderm Research

    North Miami Beach, Florida, 33162

  • Unity Clinical Research

    Oklahoma City, Oklahoma, 73118

  • Skin Specialists, P.C.

    Omaha, Nebraska, 68144

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • Integrative Skin Science and Research-Sacramento-69402

    Sacramento, California, 95815

  • Progressive Clinical Research

    San Antonio, Texas, 78213

  • ForCare Clinical Research, Inc.

    Tampa, Florida, 33613

  • Olympian Clinical Research-Tampa-69560

    Tampa, Florida, 33615

  • Clinical Trials Research Institute

    Thousand Oaks, California, 91320

Other trials in United States

Japan18 sites
  • Japan Community Healthcare Organization Chukyo Hospital

    Aichi, Nagoya, 457-8510

  • Nagoya City University Hospital

    Aichi, Nagoya, 467-8602

  • Fujita Health University Hospital

    Aichi, Toyoake, 470-1192

  • Fukuoka University Hospital

    Fukuoka, Fukuoka, 814-0180

  • Kurume University Hospital

    Fukuoka, Kurume, 830-0011

  • Ogaki Municipal Hospital

    Gifu, Ogaki, 503-8502

  • Meiwa Hospital

    Hyogo, Nishinomiya, 663-8186

  • University of Tsukuba Hospital

    Ibaraki, Tsukuba, 305-8576

  • Tohoku University Hospital

    Miyagi, Sendai, 980-8574

  • Okayama University Hospital

    Okayama, Okayama, 700-8558

  • National Hospital Organization Okayama Medical Center

    Okayama, Okayama, 701-1192

  • University of the Ryukyus Hospital

    Okinawa, Ginowan, 901-2725

  • Kansai Medical University Hospital

    Osaka, Hirakata, 573-1191

  • Shiga University of Medical Science Hospital

    Shiga, Otsu, 520-2192

  • Dokkyo Medical University Hospital

    Tochigi, Shimotsuga-gun, 321-0293

  • The University of Tokyo Hospital

    Tokyo, Bunkyo-ku, 113-8655

  • Nihon University Itabashi Hospital

    Tokyo, Itabashi-ku, 173-8610

  • Tokyo Medical University Hospital

    Tokyo, Shinjuku-ku, 160-0023

Other trials in Japan

Spain10 sites
  • Hospital Santa Creu i Sant Pau

    Barcelona, 08026

  • Hospital Universitario Reina Sofía-Córdoba-40500

    Córdoba, 14004

  • Hospital Universitario San Cecilio

    Granada, 18012

  • Hospital General de Granollers

    Granollers, 08402

  • Hospital General Universitario Gregorio Marañón

    Madrid, 28009

  • Hospital Universitario 12 de Octubre

    Madrid, 28041

  • Hospital de Manises

    Manises, 46940

  • Hospital Universitario de Salamanca

    Salamanca, 37007

  • Complexo Hospitalario Universitario De Santiago

    Santiago de Compostela, 15706

  • Hospital Miguel Servet

    Zaragoza, 50009

Other trials in Spain

China9 sites
  • Peking University First Hospital

    Beijing, 100034

  • The First Hospital of Jilin University

    Changchun, 130021

  • The Second Xiangya Hospital Of Central South University

    Changsha, 410011

  • West China Hospital of Sichuan University

    Chengdu, 610041

  • Southern Medical University Dermatology Hospital

    Guangzhou, 510091

  • The First Affiliated Hospital, Zhejiang University

    Hangzhou, 310003

  • Shanghai Skin Disease Hospital

    Shanghai, 200000

  • Xinjiang Uygur Autonomous Region People's Hospital

    Ürümqi, 830001

  • Wuhan Union Hospital

    Wuhan, 430022

Other trials in China

Malaysia8 sites
  • Hospital Pulau Pinang-Pulau Pinang-21953

    Georgetown Pulau Pinang, 10990

  • Hospital Sultanah Aminah

    Johor Bahru, 80100

  • Hospital Sultan Ismail

    Johor Bahru, 81100

  • Hospital Raja Perempuan Zainab II, Kota Bharu

    Kota Bharu, 15586

  • Hospital Kuala Lumpur

    Kuala Lumpur, 50586

  • Hospital Sultanah Nur Zahirah

    Kuala Terengganu, 20400

  • Sarawak General Hospital

    Kuching, 93586

  • Sunway Medical Centre

    Selangor Darul Ehsan, 47500

Other trials in Malaysia

Poland8 sites
  • Non-Public Health Care Facility LABDERM

    Ossy, 42624

  • NSZOZ Termedica Clinical Research Center

    Poznan, 60-681

  • Frederic Chopin University Hospital No. 1 in Rzeszow

    Rzeszów, 35055

  • High-Med Specialist Clinic, Warsaw

    Warsaw, 01-817

  • National Medical Institute MSWiA

    Warsaw, 02-507

  • Provita Clinic

    Warsaw, 02-647

  • Royalderm

    Warsaw, 02-962

  • Centrum Zdrowia WroMedica

    Wroclaw, 51-685

Other trials in Poland

France7 sites
  • HOP Privé Antony

    Antony, 92160

  • HOP Edouard Herriot

    Lyon, 69437

  • HOP Timone

    Marseille, 13385

  • HOP l'Archet

    Nice, 06200

  • HOP Saint-Louis

    Paris, 75010

  • HOP la Milétrie

    Poitiers, 86000

  • HOP Pontchaillou

    Rennes, 35033

Other trials in France

Argentina6 sites
  • STAT Research

    CABA, C1023AAB

  • Hospital Italiano de Buenos Aires

    CABA, C1056AB

  • Hospital Alemán

    Capital Federal, C1118AAT

  • Centro de Investigaciones Medicas Mar del Plata

    Mar del Plata, 7600

  • Instituto de Especialidades de la Salud Rosario

    Rosario, 2000

  • Sanatorio 9 de Julio S.A.

    San Miguel de Tucumán, 4000

Other trials in Argentina

Bulgaria6 sites
  • Medical Center "Kordis"

    Pleven, 5800

  • ASMC-IPSMC-skin and Veneral Diseases

    Sofia, 1407

  • Diagnostic Consultative Center Alexandrovska

    Sofia, 1431

  • DCC "Fokus-5-LZIP" OOD

    Sofia, 1463

  • Medical Military Academy MHAT Sofia

    Sofia, 1606

  • MHAT Prof Stoyan Kirkovich AD

    Stara Zagora, 6000

Other trials in Bulgaria

Germany6 sites
  • Fachklinik Bad Bentheim

    Bad Bentheim, 48455

  • Charite Universitätsmedizin Berlin KöR

    Berlin, 10117

  • Katholisches Klinikum Bochum gGmbH

    Bochum, 44791

  • Universitätsmedizin Göttingen, Georg-August-Universität

    Göttingen, 37075

  • Hautmedizin Saar

    Merzig, 66663

  • Klinikum Oldenburg AöR

    Oldenburg, 26133

Other trials in Germany

Canada5 sites
  • SimcoDerm Medical and Surgical Dermatology Centre

    Barrie, Ontario, L4M 7G1

  • Alberta DermaSurgery Centre

    Edmonton, Alberta, T6G 1C3

  • Guelph Dermatology Research

    Guelph, Ontario, N1L 0B7

  • Dr. S. K. Siddha Medicine Professional Corporation

    Newmarket, Ontario, L3Y 5G8

  • York Dermatology Clinic and Research Centre

    Richmond Hill, Ontario, L4B 1L1

Other trials in Canada

Greece5 sites
  • University General Hospital Attikon

    Athens, 124 62

  • Attikon University Hospital

    Athens, 12462

  • Andreas Syggros Hospital of Cutaneous & Venereal Diseases

    Athens, 16121

  • General Hospital of Thessaloniki "Ippokrateio"

    Thessaloniki, 54643

  • General Hospital Of Thessaloniki Papageorgiou

    Thessaloniki, 56403

Other trials in Greece

Israel5 sites
  • Haemek Medical Center

    Afula, 1834111

  • Rambam Health Care Campus

    Haifa, 3109601

  • Rabin Medical Center Beilinson

    Petah Tikva, 49100

  • Sheba MC

    Ramat Gan, 52621

  • Sourasky Medical Center

    Tel Aviv, 64239

Other trials in Israel

Mexico5 sites
  • Derma Norte del Bajio S.C.

    Aguascalientes, 20127

  • Grupo Clinico CATEI S.C.

    Guadalajara, 44638

  • Hospital Universitario Dr Jose Eleuterio Gonzalez

    Monterrey, 64460

  • Eukarya Pharmasite

    Monterrey, 64718

  • Arke SMO S.A. de C.V.

    Veracruz, 91910

Other trials in Mexico

Czechia4 sites
  • University Hospital Ostrava

    Ostrava, 708 00

  • Fakultni Nemocnice Plzen

    Plzen-Bory, 30100

  • Univ. Hospital Kralovske Vinohrady

    Prague, 100 34

  • University Hospital Bulovka

    Prague, 18081

Other trials in Czechia

Italy4 sites
  • AOU Università degli Studi della Campania Luigi Vanvitelli

    Naples, 80131

  • Azienda Ospedaliera Universitaria Pisana

    Pisa, 56126

  • Pol. Universitario Tor Vergata

    Roma, 00133

  • Istituto Dermopatico Dell'Immacolata - IDI - IRCCS

    Roma, 00167

Other trials in Italy

Philippines4 sites
  • Southern Philippines Medical Center -Davao-62091

    Davao City, 8000

  • Center for Skin Research, Testing and Product Development

    Makati City, 1200

  • Philippine General Hospital

    Manila, Philippines, 1000

  • East Avenue Medical Center

    Quezon City, 1100

Other trials in Philippines

Australia3 sites
  • Alfred Hospital

    Melbourne, Victoria, 3004

  • Holdsworth House Medical Practice

    Sydney, New South Wales, 2010

  • Westmead Hospital

    Westmead, New South Wales, 2145

Other trials in Australia

Denmark3 sites
  • Aarhus University Hospital

    Aarhus, 8200

  • Bispebjerg og Frederiksberg Hospital

    København NV, 2400

  • Sjællands Universitetshospital

    Roskilde, 4000

Other trials in Denmark

South Korea3 sites
  • Korea University Anam Hospital

    Seoul, 02841

  • Seoul National University Hospital

    Seoul, 03080

  • Hallym University Kangnam Sacred Heart Hospital

    Seoul, 07441

Other trials in South Korea

Switzerland3 sites
  • Universitätsspital Basel

    Basel, 4055

  • University Hospital Bern/Inselspital Bern

    Bern, 3010

  • Hôpitaux Universitaires Genève (HUG)

    Geneva, 1205

Other trials in Switzerland

Turkey (Türkiye)3 sites
  • SBU Gulhane Training and Research Hospital

    Ankara, 06011

  • Akdeniz University Medical Faculty

    Antalya, 7070

  • Ondokuz Mayis Universitesi Tip Fakultesi

    Samsun, 55270

Other trials in Turkey (Türkiye)

Belgium2 sites
  • Cliniques Universitaires Saint-Luc

    Brussels, 1200

  • Centre Hospitalier Universitaire de Liège

    Liège, 4000

Other trials in Belgium

Chile2 sites
  • Centro Internacional de Estudios Clínicos (CIEC)

    Comuna de Recoleta, 8420383

  • Clínica Dermacross S.A.

    Vitacura, 7640881

Other trials in Chile

Lithuania2 sites
  • Hospital of Lithuanian University of Health Sciences Kauno Klinikos

    Kaunas, 50161

  • Vilnius University Hospital, Santariskiu

    Vilnius, 08411

Other trials in Lithuania

Slovakia2 sites
  • DOST sro - Sanatorium-Type Dermatovenereological Department

    Svidník, 089 01

  • FN Trnava

    Trnava, 91702

Other trials in Slovakia

United Kingdom2 sites
  • Gloucestershire Royal Hospital

    Gloucester, GL1 3NN

  • St George's Hospital-London-26733

    London, SW17 0QT

Other trials in United Kingdom

Austria1 site
  • AKH - Medical University of Vienna

    Vienna, 1090

Other trials in Austria

Finland1 site
  • Suomen Terveystalo oy Tampere

    Tampere, 33100

Other trials in Finland

Netherlands1 site
  • Universitair Medisch Centrum Groningen

    Groningen, 9700 RB

Other trials in Netherlands

New Zealand1 site
  • Waikato Hospital

    Hamilton, 3204

Other trials in New Zealand

Singapore1 site
  • National University Hospital-Singapore-42005

    Singapore, 119074

Other trials in Singapore

South Africa1 site
  • TASK Applied Science

    Cape Town, 7530

Other trials in South Africa

Taiwan1 site
  • Chang Gung Memorial Hospital Linkou

    Taoyuan, 333

Other trials in Taiwan

Vietnam1 site
  • HCMC Hospital of Dermato-Venereology-Ho Chi Minh-66092

    Ho Chi Minh City, 70000

Other trials in Vietnam

About this study

Official title: Randomised, Double-blind, Placebo-controlled, Phase IIb/Phase III Study to Evaluate the Efficacy and Safety of Spesolimab in Patients With Moderate to Severe Hidradenitis Suppurativa. Lunsayil 1.

This study is open to adults with moderate to severe hidradenitis suppurativa (HS). The purpose of this study is to find out whether a medicine called spesolimab helps people with HS. People who have previously taken specific medicines such as immunosuppressive biologics other than Tumor necrosis factor (TNF) inhibitors cannot take part.

This study has 2 parts. In Part 1, participants are divided into 4 groups of almost equal size. 3 groups get different doses of spesolimab, 1 group gets placebo. All participants get injections into a vein or under the skin. Placebo injections look like spesolimab injections, but do not contain any medicine. Every participant has an equal chance of being in each group. In the beginning, participants get the study medicine every week and later every 2 weeks. After 4 months, participants in the placebo group switch to spesolimab treatment.

Read more

In Part 2, participants are divided into 2 groups. One group gets a suitable dose of spesolimab that was found in Part 1 of the study. The other group gets placebo. After 4 months, participants in the placebo group switch to spesolimab treatment.

Participants join only one of the two parts. They are in the study for about 1 year. During this time, they visit the study site in the beginning every week and later every 2 weeks. Some of the visits can be done at the participant's home instead of the study site. The doctors regularly check participants' HS symptoms. The results are compared between the groups to see whether spesolimab works. The doctors also regularly check participants' general health and take note of any unwanted effects.

Read the detailed description

Main endpoints for Part 2 will be supported by Part 1 results available at time of primary analysis.

Being tested
Spesolimab i.v., Spesolimab s.c., Placebo matching Spesolimab i.v., Placebo matching Spesolimab s.c.
Medical subject headings
Hidradenitis Suppurativa

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Spesolimab i.v.Drug

    Also called Spevigo®

    Weekly dose of spesolimab via i.v. for 4 weeks.

  • Spesolimab s.c.Drug

    Also called Spevigo®

    Weekly s.c. dose of spesolimab for 4 weeks (3 weeks for Placebo), and maintenance s.c. dose of spesolimab every two weeks until the end of the treatment.

  • Placebo matching Spesolimab i.v.Drug

    Weekly dose of placebo via i.v. for 4 weeks.

  • Placebo matching Spesolimab s.c.Drug

    Weekly s.c. dose of placebo for 4 weeks, and once every 2 weeks for the following 7 weeks.

Study groups in NCT05819398
Study groupRoleWhat they receive
Spesolimab low dose groupExperimentalPatients with moderate to severe HS were administered an initial weekly low dose of spesolimab via i.v. (Week 0 to Week 3). Afterwards, patients were administered a lower weekly s.c. dose of spesolimab for 4 weeks (Week 4 to Week 7). Patients were then administered a maintenance s.c. dose of spesolimab every two weeks until the end of the treatment (Week 8 to Week 48). From Week 16, if patients had inadequate clinical response defined as 25% increase in the ANdT count compared to baseline, the dose could be increased every two weeks to a pre-determined concentration.
Receives: Drug: Spesolimab i.v.; Drug: Spesolimab s.c.
Spesolimab medium dose groupExperimentalPatients with moderate to severe HS were administered an initial weekly medium dose of spesolimab via i.v. (Week 0 to Week 3). Afterwards, patients were administered a lower weekly s.c. dose of spesolimab for 4 weeks (Week 4 to Week 7). Patients were then administered a maintenance s.c. dose of spesolimab every two weeks until the end of the treatment (Week 8 to Week 48).
Receives: Drug: Spesolimab i.v.; Drug: Spesolimab s.c.
Spesolimab high dose groupExperimentalPatients with moderate to severe HS were administered an initial weekly high dose of spesolimab via i.v. (Week 0 to Week 3). Afterwards, patients were administered a lower weekly s.c. dose of spesolimab for 4 weeks (Week 4 to Week 7). Patients were then administered a maintenance s.c. dose of spesolimab every two weeks until the end of the treatment (Week 8 to Week 48).
Receives: Drug: Spesolimab i.v.; Drug: Spesolimab s.c.
PlaceboPlacebo comparatorPatients with moderate to severe Hidradenitis suppurativa (HS) were administered an initial weekly dose of placebo via intravenous infusion (i.v.) (Week 0 to Week 3). Afterwards, patients were administered a subcutaneous injection (s.c.) dose of placebo once a week for 4 weeks (Week 4 to Week 7), and once every 2 weeks for the following 7 weeks (Week 8 to Week 14). From Week 16 until the end of treatment (Week 48), patients were switched to the same s.c. dose of spesolimab administered to patients in the medium and high dose groups (starting with 3 loading s.c. doses of spesolimab every week and then maintenance s.c. dose of spesolimab every 2 weeks).
Receives: Drug: Spesolimab s.c.; Drug: Placebo matching Spesolimab i.v.; Drug: Placebo matching Spesolimab s.c.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Part 1 - Percent Change From Baseline in Draining Fistula/Tunnel (dT) Count at Week 8

    Percent change from baseline in draining fistula/tunnel (dT) count at Week 8 is reported. Tunnel/fistula/sinus were counted as dT only if draining. Percent change was calculated as follows: (dT count at week 8 - dT count at baseline)/ dT at baseline.

    Least square means and standard errors were estimated by Mixed effect model for repeated measurements (MMRM). The MMRM included fixed categorical effects of treatment at each visit, Tumor Necrosis Factor inhibitor (TNFi) status at baseline, and categorical baseline dT count at each visit. Visit were treated as the repeated measure with an unstructured covariance structure used to model the within-trial participant measurements.

    Measured: The MMRM model incorporates dT count from baseline (Week 0), Week 2, Week 4, Week 6 and Week 8. The data represent the Least Squares Means at Week 8.

Secondary outcomes (4)
  1. Part 1 - Percent Change From Baseline in Draining Fistula/Tunnel (dT) Count at Week 16

    Percent change from baseline in draining fistula/tunnel (dT) count at Week 16 is reported. Tunnel/fistula/sinus were counted as dT only if draining.

    Least square means and standard errors were estimated by MMRM, which included fixed categorical effects of treatment at each visit, TNFi status at baseline, categorical baseline dT count and fixed continuous effect of baseline of outcome measures at each visit. Visit was treated as repeated measure with an unstructured covariance matrix for the within trial participant variability and all visits with planned measurements of the outcome variable as well as all dose groups were included in the model.

    Measured: The MMRM model incorporates dT count from baseline (Week 0), Week 2, Week 4, Week 6, Week 8, Week 10, Week 12, Week 14 and Week 16. The data represent the Least Squares Means at Week 16.

  2. Part 1 - Absolute Change From Baseline in International Hidradenitis Suppurativa Severity Score System (IHS4) Value at Week 8

    IHS4 is a validated, clinical scoring system for dynamic assessment of HS severity. The score was calculated as: (number of nodules x1) + (number of abscesses x2) + (number of draining tunnels [fistulae/sinuses] x4). The minimum is 0, the maximum depends on the count of nodules, abscesses, and draining tunnels. Scores 0-3 indicate mild HS, 4-10 moderate HS, ≥11 severe HS. Absolute change from baseline was calculated as follows: (IHS4 value at visit timepoints) - (IHS4 value at baseline).

    Least square means and standard errors were estimated by MMRM, which included fixed categorical effects of treatment at each visit, TNFi status at baseline, categorical baseline dT count and fixed continuous effect of baseline of outcome measures at each visit. Visit was treated as repeated measure with an unstructured covariance matrix for the within trial participant variability and all visits with planned measurements of the outcome variable as well as all dose groups were included in the model.

    Measured: The MMRM model incorporates IHS4 value from baseline (Week 0), Week 2, Week 4, Week 6 and Week 8. The data represent the Least Squares Means at Week 8.

  3. Part 1 - Absolute Change From Baseline in International Hidradenitis Suppurativa Severity Score System (IHS4) Value at Week 16

    IHS4 is a validated, clinical scoring system for dynamic assessment of HS severity. The score was calculated as: (number of nodules x1) + (number of abscesses x2) + (number of draining tunnels [fistulae/sinuses] x4). The minimum is 0, the maximum depends on the count of nodules, abscesses, and draining tunnels. Scores 0-3 indicate mild HS, 4-10 moderate HS, ≥11 severe HS. Absolute change from baseline was calculated as follows: (IHS4 value at visit timepoints) - (IHS4 value at baseline).

    Least square means and standard errors were estimated by MMRM, which included fixed categorical effects of treatment at each visit, TNFi status at baseline, categorical baseline dT count and fixed continuous effect of baseline of outcome measures at each visit. Visit was treated as repeated measure with an unstructured covariance matrix for the within trial participant variability and all visits with planned measurements of the outcome variable as well as all dose groups were included in the model.

    Measured: The MMRM model incorporates IHS4 from baseline (Week 0), Week 2, Week 4, Week 6, Week 8, Week 10, Week 12, Week 14 and Week 16. The data represent the Least Squares Means at Week 16.

  4. Part 1 - Occurrence of Treatment Emergent Adverse Events (TEAEs)

    The occurrence of treatment emergent adverse events (TEAEs) is reported as the number of patients with TEAEs.

    Measured: From first drug administration until end of exposure, plus residual effect period, up to approximately 68 weeks.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Apr 2023
  2. Study start17 Apr 2023
  3. Primary completion1 Aug 2024
  4. Study completion31 Mar 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2/3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
209 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05819398
Sponsor's protocol ID
1368-0098
Other IDs
2022-501074-19-00
Status last verified
Oct 2025
First submitted
6 Apr 2023
Last updated
5 Nov 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No: Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g. studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization). For more details refer to: https://www.mystudywindow.com/msw/datatransparency

Questions about this trial

What is this clinical trial studying?

A Phase 2/3 study testing Spesolimab i.v. and Spesolimab s.c. in people with Hidradenitis Suppurativa, run by Boehringer Ingelheim at 162 sites in 35 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 162 sites in United States, Japan, Spain, China, Malaysia and 30 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 5 Nov 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Part 1 - Percent Change From Baseline in Draining Fistula/Tunnel (dT) Count at Week 8 (time frame: The MMRM model incorporates dT count from baseline (Week 0), Week 2, Week 4, Week 6 and Week 8. The data represent the Least Squares Means at Week 8.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2025.

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