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PsoriasisPhase 2IASOSNCT05190419

Study to Assess the Efficacy and Safety of Orismilast in Psoriasis

A Phase 2 study testing Orismilast modified release tablets in people with Psoriasis and Skin Diseases, run by UNION therapeutics at 34 sites in 4 countries.

Completed

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

Official record
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Trial summary

This study investigates 3 different doses of orismilast modified release compared to placebo in adult patients with moderate-to-severe plaque-type psoriasis. The purpose of the study is to assess the effect of orismilast modified release in moderate-to-severe plaque-type psoriasis and assess the safety aspects of… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Psoriasis, Skin Diseases
What is being tested?
Orismilast modified release tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
202 participants
Where
34 sitesin 4 countries
Study dates
30 Dec 2021to 20 Dec 2022
Phase
Phase 2
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

  • Capable of giving signed informed consent.
  • Male and female patients ≥18 years of age
  • Body weight of >40 kg
  • Diagnosis of chronic, stable plaque-type psoriasis. If the patient is diagnosed with psoriasis arthritis, the arthritis should be stable.
  • Moderate-to-severe plaque-type psoriasis as defined by Psoriasis Activity and Severity Index (PASI) ≥12, body surface area (BSA) ≥10%, and Investigator Global Assessment (IGA) ≥3.
  • Candidate for systemic antipsoriatic treatment or phototherapy.

Who cannot join

  • Therapy-resistant psoriasis
  • Unstable psoriasis or psoriatic arthritis with acute deterioration within 4 weeks of the Screening visit.
  • History of allergy or hypersensitivity to any component of the study treatment.
  • Active infection (eg, bacteria, viral, fungal) requiring treatment with systemic antibiotics within 4 weeks of the Screening visit.
  • Malignancy or history of malignancy except for treated (ie, cured) basal cell skin carcinomas.

Trial locations and contacts

34 sites in 4 countries.

34 sites in 4 countries

Poland14 sites
  • NZOZ Specjalistyczny Orodek Dermatologiczny DERMAL

    Bialystok

  • Specjalistyczna Praktyka Lekarska Gabinet Dermatologiczny dr n.med. Edyta Gebska

    Chorzów

  • Zespol Naukowo - Leczniczy Dermatologiczne Centrum Uzdrowiskowe Iwolang Sp. z o.o.

    Iwonicz-Zdrój

  • Provita Sp. z o.o.

    Katowice

  • Centrum Medyczne All-Med

    Krakow

  • Klinika Badawcza

    Malbork

  • Laser Clinic

    Szczecin

  • Twoja Przychodnia - Szczecinskie Centrum Medyczne

    Szczecin

  • ALERGO-MED Specjalistyczna Przychodnia Lekarska Sp. z o. o.

    Tarnów

  • High-Med.Przychodnia Specjalistyczna

    Warsaw

  • Klinika Ambroziak

    Warsaw

  • CityClinic Przychodnia Lekarsko-Psychologiczna

    Wroclaw

  • dermMedica Sp z.o.o

    Wroclaw

  • Wromedica

    Wroclaw

Other trials in Poland

Germany12 sites
  • Fachklinik Bad Bentheim

    Bad Bentheim

  • ISA - Interdisciplinary Study Association GmbH

    Berlin

  • Rosenpark Research GmbH

    Darmstadt

  • Hautarztpraxis Dr.Gerlach

    Dresden

  • Derma-Study-Center-Friedrichshafen

    Friedrichshafen

  • Klinische Forschung Hamburg GmbH

    Hamburg

  • TFS Trial From Support GmbH

    Hamburg

  • MVZ DermaKiel GmbH

    Kiel

  • Studienzentrum Dr.Beate Schwarz

    Langenau

  • Hautarztpraxis Mahlow

    Mahlow

  • LMU Muenchen, Klinik und Poliklinik fur Dermatologie und Allergologie

    München

  • KliFOs - Klinische Forschung Osnabrueck

    Osnabrück

Other trials in Germany

United States7 sites
  • ALLCUTIS Research, LLC

    Beverly, Massachusetts, 01915

  • Central Connecticut Dermatology

    Cromwell, Connecticut, 06416

  • Apex Clinical Research Center

    Mayfield Heights, Ohio, 44124

  • Bruce E. Katz, MD

    New York, New York, 10022

  • Sadick Research Group LLC

    New York, New York, 10075

  • ALLCUTIS Research, LLC

    Portsmouth, New Hampshire, 03801

  • GWU MFA

    Washington D.C., District of Columbia, 20037

Other trials in United States

United Kingdom1 site
  • Medicines Evaluation Unit

    Manchester

Other trials in United Kingdom

About this study

Official title: A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Phase 2b Dose-Ranging Study to Evaluate the Efficacy and Safety of Orismilast in Adults With Moderate-to-Severe Plaque-Type Psoriasis

This study investigates 3 different doses of orismilast modified release compared to placebo in adult patients with moderate-to-severe plaque-type psoriasis. The purpose of the study is to assess the effect of orismilast modified release in moderate-to-severe plaque-type psoriasis and assess the safety aspects of these 3 different doses.The patients will receive an oral treatment of either orismilast modified release tablets or placebo tablets 2 times a day for 16 weeks.

Being tested
Orismilast modified release tablets, Placebo
Keywords
Psoriasis, Orismilast
Medical subject headings
Psoriasis, Skin Diseases

What participants receive

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

  • Orismilast modified release tabletsDrug

    Also called UNI50001, LEO32731

    Orismilast modified release is a next generation phosphodiesterase-4 (PDE4) inhibitor with high selectivity for the PDE4 subtypes linked to inflammation.

  • PlaceboDrug

    Matching placebo tablets

Study groups in NCT05190419
Study groupRoleWhat they receive
Orismilast modified release tablets 20 mg BIDExperimentalOral, twice daily morning and evening for 16 weeks
Receives: Drug: Orismilast modified release tablets
Orismilast modified release tablets 30 mg BIDExperimentalOral, twice daily morning and evening for 16 weeks
Receives: Drug: Orismilast modified release tablets
Orismilast modified release tablets 40 mg BIDExperimentalOral, twice daily morning and evening for 16 weeks
Receives: Drug: Orismilast modified release tablets
Placebo tablets BIDPlacebo comparatorOral, twice daily morning and evening for 16 weeks
Receives: Drug: Placebo

What is being measured

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

  1. Percent Change From Baseline in Psoriasis Activity and Severity Index (PASI) Score at Week 16

    The Psoriasis Activity and Severity Index (PASI) is a measure of psoriatic disease severity, taking into account qualitative lesion characteristics (erythema, induration, and desquamation) and percentage of affected skin surface area on defined anatomical regions. PASI score ranges from 0 to 72, with higher scores reflecting greater disease severity. Erythema, induration/thickness, and scaling are scored on a scale of 0 (none) to 4 (very severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no involvement) to 6 (90% to 100% involvement). The total qualitative score (sum of erythema, thickness, and scaling scores) is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant. The scores for each anatomic region are combined to yield the final PASI.

    Measured: Baseline and Week 16

Secondary outcomes (11)
  1. Percentage of Participants Who Achieved 75% Reduction in PASI (PASI75) Response at Week 16

    The PASI is a measure of psoriatic disease severity, taking into account qualitative lesion characteristics (erythema, induration, and desquamation) and percentage of affected skin surface area on defined anatomical regions. PASI score ranges from 0 to 72, with higher scores reflecting greater disease severity. Erythema, induration/thickness, and scaling are scored on a scale of 0 (none) to 4 (very severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no involvement) to 6 (90% to 100% involvement). The total qualitative score (sum of erythema, thickness, and scaling scores) is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant. The scores for each anatomic region are combined to yield the final PASI. PASI75 is 75% reduction from Baseline in PASI score.

    Measured: At Week 16

  2. Percentage of Participants Who Achieved a Score of Clear (0) or Almost Clear (1) and an at Least 2-point Improvement in Investigator Global Assessment (IGA) at Week 16

    The IGA is a measure used by physicians to determine the patient's overall severity of disease. The static version is used in this trial for measurement at a single point in time as indicated in the schedule of assessments. The investigator will rate the severity of patient's psoriasis on a 5-point scale ranging from 0 (clear) to 4 (severe).

    Measured: At Week 16

  3. Percentage of Participants Who Achieved a Score of Clear (0) or Almost Clear (1) and an at Least 2-point Improvement in Investigator Global Assessment (IGA) at Weeks 4, 8, 12, and 20

    The IGA is a measure used by physicians to determine the patient's overall severity of disease. The static version is used in this trial for measurement at a single point in time as indicated in the schedule of assessments. The investigator will rate the severity of patient's psoriasis on a 5-point scale ranging from 0 (clear) to 4 (severe).

    Measured: At Weeks 4, 8, 12, and 20

  4. Percentage of Participants Who Achieved 75% Reduction in PASI (PASI75) Response at Weeks 4, 8, 12, and 20

    The PASI is a measure of psoriatic disease severity, taking into account qualitative lesion characteristics (erythema, induration, and desquamation) and percentage of affected skin surface area on defined anatomical regions. PASI score ranges from 0 to 72, with higher scores reflecting greater disease severity. Erythema, induration/thickness, and scaling are scored on a scale of 0 (none) to 4 (very severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no involvement) to 6 (90% to 100% involvement). The total qualitative score (sum of erythema, thickness, and scaling scores) is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant. The scores for each anatomic region are combined to yield the final PASI. PASI75 is 75% reduction from Baseline in PASI score.

    Measured: At Weeks 4, 8, 12, and 20

  5. Percentage of Participants Who Achieved 50%, 90%, and 100% Reduction in PASI Response at Weeks 4, 8, 12, 16, and 20

    The PASI is a measure of psoriatic disease severity, taking into account qualitative lesion characteristics (erythema, induration, and desquamation) and percentage of affected skin surface area on defined anatomical regions. PASI score ranges from 0 to 72, with higher scores reflecting greater disease severity. Erythema, induration/thickness, and scaling are scored on a scale of 0 (none) to 4 (very severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no involvement) to 6 (90% to 100% involvement). The total qualitative score (sum of erythema, thickness, and scaling scores) is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant. The scores for each anatomic region are combined to yield the final PASI. PASI 50, 90, and 100 is 50%, 90%, and 100% reduction from Baseline in PASI score, respectively.

    Measured: At Weeks 4, 8, 12, 16, and 20

  6. Percent Change From Baseline in Psoriasis Activity and Severity Index (PASI) Score at Weeks 4, 8, 12, and 20

    The Psoriasis Activity and Severity Index (PASI) is a measure of psoriatic disease severity, taking into account qualitative lesion characteristics (erythema, induration, and desquamation) and percentage of affected skin surface area on defined anatomical regions. PASI score ranges from 0 to 72, with higher scores reflecting greater disease severity. Erythema, induration/thickness, and scaling are scored on a scale of 0 (none) to 4 (very severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no involvement) to 6 (90% to 100% involvement). The total qualitative score (sum of erythema, thickness, and scaling scores) is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant. The scores for each anatomic region are combined to yield the final PASI.

    Measured: Baseline and Weeks 4, 8, 12, and 20

  7. Percent Change From Baseline in Dermatology Life Quality Index (DLQI) Score at Weeks 16 and 20

    The DLQI is a 10-item validated questionnaire completed by the patient used to assess the impact of skin disease on the patient's quality of life (QoL) during the previous week. The 10 questions cover the following topics: symptoms, embarrassment, shopping and home care, clothes, social and leisure, sport, work or study, close relationships, sex, and treatment. Each question is scored from 0 to 3 ("not at all," "a little," "a lot," and "very much," respectively), giving a total score ranging from 0 to 30. A high score is indicative of a poor QoL.

    Measured: Baseline and Weeks 16 and 20

  8. Percent Change From Baseline in Affected Body Surface Area (BSA) at Weeks 4, 8, 12, 16, and 20

    The BSA assessment estimates the extent of disease or skin affected by psoriasis and is expressed as a percentage of total body surface. BSA was determined by the Investigator or designee using the patient palm = 1% BSA rule. The patient's palm is measured from the wrist to the proximal interphalangeal and thumb.

    Measured: Baseline and Weeks 4, 8, 12, 16, and 20

  9. Percent Change From Baseline in Total Score of Psoriasis Symptom Scale (PSS) at Weeks 4, 8, 12, 16, and 20

    The PSS is a 4-item patient-completed questionnaire (Rentz 2017). It is patient relevant, its domains are reliable and valid, and it takes few minutes to complete. The PSS assesses severity of pain, itching, redness, and burning during the past 24 hours using a 5-point severity scale from 0 = none to 4 = very severe.

    Measured: Baseline and Weeks 4, 8, 12, 16, and 20

  10. Percent Change From Baseline in Each Individual Item of Psoriasis Symptom Scale (PSS) at Weeks 4, 8, 12, 16, and 20

    The PSS is a 4-item patient-completed questionnaire (Rentz 2017). It is patient relevant, its domains are reliable and valid, and it takes few minutes to complete. The PSS assesses severity of pain, itching, redness, and burning during the past 24 hours using a 5-point severity scale from 0 = none to 4 = very severe.

    Measured: Baseline and Weeks 4, 8, 12, 16, and 20

  11. Percentage of Participants Who Experienced Psoriasis Rebound by Week 20

    The Psoriasis Activity and Severity Index (PASI) is a measure of psoriatic disease severity, taking into account qualitative lesion characteristics (erythema, induration, and desquamation) and percentage of affected skin surface area on defined anatomical regions. PASI score ranges from 0 to 72, with higher scores reflecting greater disease severity. Erythema, induration/thickness, and scaling are scored on a scale of 0 (none) to 4 (very severe) on 4 anatomic regions of the body: head, trunk, upper limbs, and lower limbs. Degree of involvement on each of the 4 anatomic regions is scored on a scale of 0 (no involvement) to 6 (90% to 100% involvement). The total qualitative score (sum of erythema, thickness, and scaling scores) is multiplied by the degree of involvement for each anatomic region and then multiplied by a constant. The scores for each anatomic region are combined to yield the final PASI.

    Measured: At Week 20

Timeline

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

  1. First posted13 Jan 2022
  2. Study start30 Dec 2021
  3. Primary completion24 Nov 2022
  4. Study completion20 Dec 2022

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants will be assigned randomly in a 1:1:1:1 ratio to receive 1 of the 3 orismilast modified release doses (20 mg, 30 mg, or 40 mg) or placebo twice daily (BID)
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
202 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05190419
Sponsor's protocol ID
UNI50001-203
Other IDs
2021-003209-22
Acronym
IASOS
Status last verified
Mar 2024
First submitted
30 Dec 2021
Last updated
16 Apr 2024
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Warren RB, Weiss A, Felding J, Sommer MOA, Garcet S, Krueger JG. Orismilast, a Potent and Selective PDE4B/D Inhibitor, Reduces Protein Levels of Key Disease Driving Cytokines in the Skin of Patients With Plaque Psoriasis. Exp Dermatol. 2025 Sep;34(9):e70153. doi: 10.1111/exd.70153.

    PubMed 40970551

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Orismilast modified release tablets in people with Psoriasis and Skin Diseases, run by UNION therapeutics at 34 sites in 4 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 6 inclusion and 5 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 16 Apr 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 34 sites in Poland, Germany, United States, United Kingdom. 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 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.

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 16 Apr 2024). 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?

Percent Change From Baseline in Psoriasis Activity and Severity Index (PASI) Score at Week 16 (time frame: Baseline and Week 16). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05190419, which also lists 1 linked publication.

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 16 Apr 2024.

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