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Plaque PsoriasisPhase 2IlluminateNCT05896527

A Study to Evaluate the Efficacy and Safety of DC-806 in Participants With Moderate to Severe Plaque Psoriasis

A Phase 2 study testing DC-806 in people with Plaque Psoriasis, run by DICE Therapeutics, Inc., a wholly owned subsidiary of Eli Lilly and Company at 56 sites in 8 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 was a 12-week treatment, multicenter, randomized, double-blind, placebo-controlled, parallel-group, dose-ranging study to evaluate the efficacy and safety of DC-806 in participants with moderate to severe plaque psoriasis. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Plaque Psoriasis
What is being tested?
DC-806
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
229 participants
Where
56 sitesin 8 countries
Study dates
2 May 2023to 25 Mar 2024
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 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female, 18 to 70 years of age
  • Body mass index (BMI) of 18 to 40 kg/m2
  • All of the following psoriasis criteria:
  • Clinical diagnosis of plaque psoriasis for ≥6 months before the Baseline visit
  • Stable moderate to severe chronic plaque psoriasis, defined as ≥10% BSA psoriasis involvement, sPGA score of ≥3, and PASI score ≥12 at the Screening and Baseline visits
  • Candidate for phototherapy or systemic therapy, as assessed by the Investigator
  • Women of childbearing potential (WOCBP) and men who are sexually active with WOCBP must be willing to use a highly effective method of contraception during the study and for ≥30 days after the last dose of study drug
  • Willing to discontinue topical and/or systemic therapies for psoriasis before the first dose of study drug

Who cannot join

  • Have had a clinically significant flare of psoriasis during the 12 weeks before the Baseline visit, as assessed by the Investigator
  • History of erythrodermic psoriasis, generalized or localized pustular psoriasis, predominantly guttate psoriasis, medication-induced or medication-exacerbated psoriasis
  • History of chronic infections including human immunodeficiency virus (HIV) or viral hepatitis (hepatitis B virus [HBV], hepatitis C virus [HCV])
  • History of active tuberculosis (TB)
  • History or evidence of active infection (including but not limited to coronavirus disease 2019 [COVID-19] infection) and/or febrile illness within 7 days, serious infections leading to hospitalization and intravenous antibiotic treatment within 90 days, or serious infection requiring antibiotic treatment within 30 days before the first dose of study drug
  • History of malignancy or lymphoproliferative disease except resected cutaneous squamous cell or basal cell carcinoma that has been treated without recurrence
Show all 22Show fewer
  • Presence of active suicidal ideation, or positive suicide behavior using the "Baseline/Screening" version of the Columbia Suicide Severity Rating Scale (C-SSRS) and with either of the following criteria:
  • History of suicide attempt (including an actual attempt, interrupted attempt, or aborted attempt) within 5 years before the Screening visit
  • Suicidal ideation in the past month before the Screening visit as indicated by a positive response ("Yes") to either Question 4 or Question 5 of the "Baseline/Screening" version of the C-SSRS
  • Participant has experienced primary failure (no response at approved doses after ≥3 months of therapy) to one or more therapeutic agents targeted to IL-17 (including but not limited to secukinumab, ixekizumab, brodalumab, bimekizumab)
  • Systemic use of known strong and moderate cytochrome P450 (CYP)3A4 inhibitors or strong CYP3A4 inducers from Screening through the end of the study
  • A 12-lead electrocardiogram (ECG) at Screening that demonstrates clinically significant abnormalities or criteria associated with QT interval abnormalities including prolongation of QT interval corrected for heart rate using Fridericia's formula (QTcF) (>500 msec)
  • Laboratory values meeting the following criteria within the screening period before the first dose of study drug:
  • Serum aspartate transaminase ≥2× upper limit of normal (ULN)
  • Serum alanine transaminase ≥2×ULN
  • Serum total, direct, or indirect bilirubin ≥2.0 mg/dL; except for participants with isolated elevation of indirect bilirubin relating to a confirmed diagnosis of Gilbert syndrome
  • Estimated glomerular filtration rate (GFR) by simplified 4-variable Modification of Diet in Renal Disease (MDRD) formula <45 mL/min/1.73m2
  • Total white blood cell count <3000/μL
  • Absolute neutrophil count <1500/μL
  • Platelet count <100,000/μL
  • Hemoglobin <9 g/dL
  • In the opinion of the Investigator or Sponsor, have any uncontrolled clinically significant laboratory abnormality that would affect interpretation of study data or the participant's enrollment in the study

Trial locations and contacts

56 sites in 8 countries.

56 sites in 8 countries

United States13 sites
  • Driven Research LLC

    Coral Gables, Florida, 33134-3901

  • First OC Dermatology

    Fountain Valley, California, 92708-3701

  • Dermatology Specialists Research - 501 S 2nd St

    Louisville, Kentucky, 40202-2862

  • Dermatologists of Southwest Ohio - Probity - PPDS

    Mason, Ohio, 45040-4520

  • Kirsch Dermatology - Probity - PPDS

    Naples, Florida, 34102-6538

  • DICE Therapeutics Study Site

    New York, New York, 10003-3314

  • Virginia Clinical Research Inc

    Norfolk, Virginia, 23502-3945

  • Paddington Testing Company Inc

    Philadelphia, Pennsylvania, 19103-4738

  • The Indiana Clinical Trials Center, PC

    Plainfield, Indiana, 46168-2792

  • Clinical Science Institute

    Santa Monica, California, 90404-2120

  • GCP Global Clinical Professionals, LLC

    St. Petersburg, Florida, 33713-8012

  • ForCare Clinical Research - CenExel FCR - PPDS

    Tampa, Florida, 33613-1244

  • Center for Clinical Studies - Webster

    Webster, Texas, 77598-4927

Other trials in United States

Canada11 sites
  • CCA Medical Research - Probity - PPDS

    Ajax, Ontario, L1S 7K8

  • SimcoDerm Medical and Surgical Dermatology Centre - Probity - PPDS

    Barrie, Ontario, L4M 7G1

  • Alberta DermaSurgery Centre - Probity - PPDS

    Edmonton, Alberta, T6G 1C2

  • Dermatrials Research

    Hamilton, Ontario, L8N 1Y2

  • Lynderm Research Inc. - Probity - PPDS

    Markham, Ontario, L3P 1X2

  • DermEdge Research Probity - PPDS

    Mississauga, Ontario

  • DICE Therapeutics Study Site

    North York, Ontario, M2M 4J5

  • Centre de Recherche Dermatologique du Quebec metropolitain (CRDQ)

    Québec, G1V 4X7

  • Enverus Medical Research - Probity - PPDS

    Surrey, British Columbia, V3V 0C6

  • Alliance Clinical Trials - Probity - PPDS

    Waterloo, Ontario, N2J 1C4

  • Wiseman Dermatology Research Inc. - Probity - PPDS

    Winnipeg, Manitoba, R3M 3Z4

Other trials in Canada

Germany9 sites
  • DICE Therapeutics Study Site

    Berlin, 10117

  • ISA - Interdisciplinary Study Association GmbH

    Berlin, 10789

  • DICE Therapeutics Study Site

    Bonn, North Rhine-Westphalia, 53127

  • DICE Therapeutics Study Site

    Erlangen, Bavaria, 91054

  • Universitätsklinikum Frankfurt

    Frankfurt am Main, Hesse, 60590

  • DICE Therapeutics Study Site

    Leipzig, Saxony, 4103

  • DICE Therapeutics Study Site

    Lübeck, 23538

  • DICE Therapeutics Study Site

    Münster, North Rhine-Westphalia, 48149

  • DICE Therapeutics Study Site

    Tübingen, 72076

Other trials in Germany

Poland8 sites
  • ClinicMed Daniluk, Nowak Spólka Komandytowa

    Bialystok, Podlaskie Voivodeship, 15-879

  • Centrum Medyczne Angelius Provita

    Katowice, Silesian Voivodeship, 40-611

  • Dermoklinika-Centrum Medyczne s.c

    Lódz, Lódzkie, 90-436

  • Uniwersytecki Szpital Kliniczny im. Fryderyka Chopina w Rzeszowie

    Rzeszów, Podkarpackie Voivodeship, 35-055

  • Laser Clinic S.C.

    Szczecin, West Pomeranian Voivodeship, 70-332

  • Centrum Medyczne Reuma Park NZOZ

    Warsaw, Masovian Voivodeship, 02-665

  • Cityclinic Przychodnia lekarsko psychologiczna Matusiak sp.p

    Wroclaw, Lower Silesian Voivodeship, 50-566

  • Wro Medica

    Wroclaw, Lower Silesian Voivodeship, 51-685

Other trials in Poland

Hungary6 sites
  • Semmelweis Egyetem

    Budapest, 1085

  • DICE Therapeutics Study Site

    Gyöngyös, 3200

  • DICE Therapeutics Study Site

    Kaposvár, Somogy County, 7400

  • Allergo-Derm Bakos Kft.

    Szolnok, Jász-Nagykun-Szolnok, 5000

  • DICE Therapeutics Study Site

    Szombathely, Vas County, 9700

  • MedMare Bt

    Veszprém, 8200

Other trials in Hungary

Czechia4 sites
  • Fakultni nemocnice Kralovske Vinohrady - CRC - PPDS

    Prague, Praha, Hlavní Mesto, 100 00

  • CCR Prague s.r.o. - PRATIA - PPDS

    Prague, Praha, Hlavní Mesto, 130 00

  • CCR Prague s.r.o. - PRATIA - PPDS

    Prague, 100 00

  • DICE Therapeutics Study Site

    Prague, 150 00

Other trials in Czechia

Spain3 sites
  • Hospital Universitario de Gran Canaria Doctor Negrin

    Las Palmas de Gran Canaria, 35010

  • Hospital Universitario 12 de Octubre

    Madrid, 28026

  • CHUS - H. Clinico U. de Santiago

    Santiago de Compostela, 50009

Other trials in Spain

United Kingdom2 sites
  • Synexus Merseyside Clinical Research Centre

    Liverpool, Lancashire, L22 0LG

  • Medicines Evaluation Unit

    Manchester, M23 9QZ

Other trials in United Kingdom

About this study

Official title: A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Dose-ranging Study to Evaluate the Efficacy and Safety of DC-806 in Participants With Moderate to Severe Plaque Psoriasis

This was a 12-week treatment, multicenter, randomized, double-blind, placebo-controlled, parallel-group, dose-ranging study to evaluate the efficacy and safety of DC-806 in participants with moderate to severe plaque psoriasis. This study evaluated the efficacy, safety, tolerability, and pharmacokinetics (PK) of multiple oral doses of DC-806 in participants with moderate to severe plaque psoriasis.

Being tested
DC-806, Placebo

What participants receive

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

  • DC-806Drug

    DC-806 was supplied as tablets to be administered orally.

  • PlaceboOther

    Matching placebo was supplied as tablets to be administered orally.

Study groups in NCT05896527
Study groupRoleWhat they receive
PlaceboPlacebo comparatorParticipants received placebo tablets orally twice daily (BID) for 12 weeks.
Receives: Other: Placebo
DC-806 200 mg BIDExperimentalParticipants received 200 milligrams (mg) of DC-806 tablets orally twice daily for 12 weeks.
Receives: Drug: DC-806
DC-806 400 mg BIDExperimentalParticipants received 400 mg of DC-806 tablets orally twice daily for 12 weeks.
Receives: Drug: DC-806
DC-806 600 mg QDExperimentalParticipants received 600 mg of DC-806 tablets orally once daily (QD) for 12 weeks.
Receives: Drug: DC-806
DC-806 800 mg BIDExperimentalParticipants received 800 mg of DC-806 tablets orally twice daily for 12 weeks.
Receives: Drug: DC-806

What is being measured

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

  1. Percentage of Participants Achieving ≥75% Reduction From Baseline in Psoriasis Area and Severity Index (PASI-75) at Week 12

    Participants achieving a PASI-75 without the use of other background antipsoriasis therapy were considered responders. The PASI quantifies the severity of a psoriasis based on lesion severity and the percent of body surface area (BSA) affected. Erythema, 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 sum of severity scores for erythema, thickness, and scaling is multiplied by the degree of involvement for each anatomic region, and then multiplied by a constant corresponding to the region's percent BSA (0.1, 0.3, 0.2, and 0.4 for the above 4 regions, respectively). The resultant score for each anatomic region is then summed to yield the final PASI score. It ranges from 0 to 72, with higher scores reflecting greater disease severity.

    Measured: Week 12

  2. Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEASs Leading to Treatment Discontinuations

    • A TEAE was defined as any adverse event that began on or after the first dose of study drug or began before the first dose of study drug and worsened on or after the first dose of study drug.
    • An SAE is any untoward medical occurrence that results in 1 of the following: death, initial or prolonged inpatient hospitalization, a life-threatening experience (that is, immediate risk of dying), persistent or significant disability/incapacity, congenital anomaly/birth defect, or important medical events that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require intervention to prevent 1 of the other outcomes listed in the definition above.

    Measured: Baseline through End of follow-up (Up to 16 weeks)

Timeline

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

  1. First posted9 Jun 2023
  2. Study start2 May 2023
  3. Primary completion25 Mar 2024
  4. Study completion25 Mar 2024

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
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
229 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05896527
Sponsor's protocol ID
DCE806201
Other IDs
2022-502249-90-00, J5B-MC-FHAG
Acronym
Illuminate
Status last verified
Mar 2025
First submitted
31 May 2023
Last updated
4 Apr 2025
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing DC-806 in people with Plaque Psoriasis, run by DICE Therapeutics, Inc., a wholly owned subsidiary of Eli Lilly and Company at 56 sites in 8 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 22 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 4 Apr 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 56 sites in United States, Canada, Germany, Poland, Hungary and 3 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 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 4 Apr 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?

Percentage of Participants Achieving ≥75% Reduction From Baseline in Psoriasis Area and Severity Index (PASI-75) at Week 12 (time frame: Week 12). The study lists 2 primary outcomes in all. 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 4 Apr 2025.

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