New oral pill TLL018 aims to clear psoriasis plaques in phase 2 trial

NCT ID NCT05772520

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This phase 2 trial tests whether an experimental oral drug called TLL018 can improve skin clearance in adults with moderate-to-severe plaque psoriasis. Participants receive one of two doses of TLL018 or a placebo for 12 weeks. The main goal is to see if at least 75% of skin plaques clear up, as measured by the Psoriasis Area and Severity Index (PASI-75).

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
TLL018 tablets
What this could lead to
If successful, TLL018 could offer a new oral treatment option for people with moderate-to-severe plaque psoriasis, potentially reducing skin plaques and symptoms.
What could go wrong
This is an early phase 2 trial with only 82 participants, so results may not apply broadly. The drug may not prove effective or could have side effects not yet identified.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

82 people

The number who actually took part.

Started

Jan 2023

Finished

Dec 2024

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 75 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Are between the ages of 18 and 75 years, inclusive, at time of informed consent. 2. Capable of giving informed consent and complying with study procedures. 3. Willing and able to adhere to study restrictions. 4. Laboratory and medical history parameters within the protocol defined ranges. 5. Normal renal function (\>90 mL/min/1.72 m2) or mild renal impairment (Stage 2 mild chronic kidney disease glomerular filtration rate \[GFR\] = 60 to 89 mL/min/1.73 m2) as determined by central laboratory. 6. Body mass index (BMI) of 18.0 to 35.0 kg/m2 inclusive. 7. Have had a diagnosis of moderate-to-severe PP for at least 6 months prior to Baseline. 8. Participants with moderate-to-severe PP covering ≥10% body surface area (BSA), with a Psoriasis Area and Severity Index (PASI) ≥12 and a static Physician's Global Assessment (PGA) score ≥3 at Baseline. 9. Participants with plaque psoriasis who are systemic treatment naïve or have received at least one of the conventional anti-psoriasis treatments such as acitretin, phototherapy, methotrexate, cyclosporine, apremilast, or biologic therapy (anti-TNF or anti-IL-12/17/23). 10. Participants who are candidates for systemic treatment for psoriasis at the discretion of the Investigator. 11. Must agree to avoid prolonged exposure (\> 15 minutes) to the sun and avoid use of tanning booths or other ultraviolet light sources during the study. 12. Female participants of childbearing potential (See Section 10.4.1 definition of Woman of Childbearing Potential - WOCBP) must have a negative serum human chorionic gonadotropin (hCG) at Screening, and meet one of the following criteria: 1. Using a medically acceptable form of birth control (Appendix 4) for at least 1 month prior to Screening and 3 months after the last dose of study drug (e.g., hormonal contraceptives \[oral, patch, injectable or vaginal ring\], implantable device \[implantable rod or intrauterine device\], bilateral tubal occlusion/tubal ligation, azoospermic partner). 2. Abstinence as a form of birth control is generally not permitted during the study with the exception of participants who practice abstinence as a preferred and usual lifestyle style choice. The Investigator must confirm that abstinence is still in accordance with the participant's lifestyle at regular intervals throughout the study. 13. Male participants with female partners of childbearing potential must agree to use condoms for the duration of the study and until 13 weeks after administration of the study intervention and must refrain from donating sperm for this same period. In addition, his female partner should agree to use a highly effective method of birth control per Appendix 4 or an additional barrier form of birth control (e.g., diaphragm, cervical cap, spermicide, or sponge).) 14. Ability to swallow and retain oral study intervention. 15. Participants must have completed their coronavirus disease 2019 (COVID-19) vaccination in accordance with the latest CDC guidelines, which is based on previous vaccination history. Please reference COVID-19 vaccination guidance for individuals who are moderately or severely immunocompromised (Clinical Guidance for COVID-19 Vaccination \| CDC). 1. Previous Pfizer-BioNTech, Moderna or Novavax: Must have previously received at least a 1st and 2nd dose, then must have received an updated formulation according to the CDCs dosing requirements; or 2. Novavax or Johnson and Johnson's Janssen: Must have previously received 1 or more doses in combination with any original monovalent or bivalent COVID-19 vaccine doses, then must receive an updated formulation according to the CDCs vaccination guidelines. ... Exclusion Criteria: 1. Pregnant or nursing women. 2. Past history of gastrointestinal perforation, history of peptic ulcers and/or regular use of NSAIDs. 3. History of chronic alcohol or drug abuse within 6 months prior to Screening as determined by the Investigator based on medical history and patient interview. 4. Current or recent history of severe, progressive, or uncontrolled renal, hepatic, hematologic, gastrointestinal, metabolic, endocrine, pulmonary, cardiovascular, neurologic, or psychiatric disease. 5. Current and/or recent history (\<30 days prior to Screening and/or \<45 days prior to randomization) of a clinically significant viral, bacterial, fungal, parasitic, or mycobacterial infection. 6. Subject is currently being treated with or has received strong cytochrome P450 3A (CYP3A4) inhibitors, such as itraconazole, within 4 weeks prior to Baseline (Day 0). 7. Any history of malignancies, except for non-recurrent basal cell skin cancer, squamous cell skin cancer, and cervical cancer in situ that are considered to be cured. 8. Tests positive for hepatitis B, hepatitis C, or human immunodeficiency virus (HIV). For Hepatitis B all subjects will undergo testing for Hepatitis B Surface Antigen (HBsAg) and Hepatitis B Core Antibody (HBcAb). Subjects who are HBsAg positive are not eligible for the study. Subjects who are HBsAg negative and HBcAb positive will subsequently need testing for Hepatitis B virus deoxyribonucleic acid (HBV DNA) and if HBV DNA negative may be enrolled in the study; if HBV DNA is positive, the subject is not eligible for the study. Positive hepatitis C virus result is defined as having a positive hepatitis C antibody test with a positive confirmatory hepatitis C polymerase chain reaction test. 9. Recent exposure to active tuberculosis (TB). Current evidence of active TB or current evidence of latent TB. Participants with positive TB test (e.g., QuantiFERON) that have been treated for latent TB. A borderline QuantiFERON test should be repeated. If still indeterminant, then a chest x-ray may be performed (positive chest x-ray is exclusionary). 10. History of unexplained syncope, symptomatic hypotension, or hypoglycemia. 11. Abnormal D-dimer levels in conjunction with clinical or current and past thrombotic disease. 12. Participants with uncontrolled hypertension, uncontrolled diabetes, untreated or uncontrolled hyperlipidemia (fasting blood triglycerides \>500 mg/dL and fasting cholesterol \>250 mg/dL). 13. History of any significant cardiac event (e.g., myocardial infarction) within 6 months prior to Screening, including: 1. History of long QTc syndrome; history or presence of an abnormal ECG, which, in the Investigator's opinion, is clinically significant. 2. History of unstable ischemic heart disease or uncontrolled hypertension. 3. Current Class 3 or 4 heart failure per the New York Heart Association Functional Classification. 4. Screening and/or Baseline QTcF \> 450 msec for males and \> 470 msec for females, confirmed by triplicate ECG. 14. Participants with history of thrombosis and/ or thromboembolism, or associated risk factors (e.g., inherited thrombophilias, etc.). 15. Donated or lost \>500 mL of blood in the previous 3 months. 16. Participants with chronic kidney disease with eGFR \<60 mL/min/1.73 m2. 17. Participants with moderate-to-severe hepatic impairment (i.e., Child-Pugh Class B and C). 18. Major surgery within 3 months prior to Screening or participant has a planned major surgery during the course of the study. 19. Participants with any of the following abnormalities in clinical laboratory tests at Screening, as assessed by the study-specific laboratory and confirmed by a single repeat, if deemed necessary: * Hemoglobin \<100 g/L * White blood cell (WBC) count of \<3.0 × 109/L * Platelet count of \<80 × 109/L * Absolute neutrophil count of \<1.5 × 109/L * Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) values greater than 3 times the ULN 20. Any uncontrolled clinically significant laboratory abnormality that would affect interpretation of study data or the participant's participation in the study. 21. Previous or current autoimmune diseases (e.g., RA, systemic lupus erythematosus, IBD, scleroderma, inflammatory myopathy, mixed connective tissue disease overlap syndrome, etc.). Note, psoriatic arthritis patients are allowed. 22. Other types of psoriasis (such as erythrodermic psoriasis, pustular psoriasis, guttate psoriasis, drug-induced psoriasis). 23. Current enrollment in another study intervention protocol or experimental treatment within 30 days or five half-lives (whichever is longer). 24. Received any topical therapy that can affect psoriasis (including topical use of moderate-strong glucocorticoids, retinoids, vitamin D3 derivatives, salicylic acid, anthracene, etc.) within 2 weeks of first study intervention. Low potency topical steroids are permitted for sensitive areas only (e.g., face, axillae, genitalia). Bland emollients without urea or α or β-hydroxy acids are permitted. 25. Use of phototherapy (including photochemotherapy, ultraviolet therapy, tanning bed self-therapy, etc.) within 4 weeks of first study intervention. 26. Use of systemic oral therapy that can affect psoriasis (including but not limited to glucocorticoids, retinoids, cyclosporine, methotrexate and apremilast) within 4 weeks of first study intervention. 27. Received intravenous corticosteroids within 4 weeks of first study intervention. 28. Use of antimalarial drugs, interferon-α, lithium and beta-blockers within 4 weeks of first study intervention. 29. Use of Chinese or herbal medicine treatment of psoriasis within 2 weeks of first study intervention. 30. Prior to randomization, washout periods of the following biologics are required: etanercept ≥28 days; any s.c. mAb targeting TNF (eg., infliximab, adalimumab, certolizumab) \>3 months; ustekinumab or drugs that specifically target IL-23\>6 months; secukinumab, ixekizumab, bimekizumab, brodalumab or other IL-17 antagonists \>6 months; any other anti-psoriasis treatments not listed within 5 half-lives. Topical JAK inhibitors should have a washout period \> 2 weeks. 31. Prior use of three or more biologic therapies. 32. Use of natalizumab and other drugs that regulate B or T cells within 12 months of first study intervention, such as rituximab, alemtuzumab, and abatacept. 33. Participants who have received live vaccines within 2 months prior to first study intervention or plan to receive live vaccines during the study period. Non-live-attenuated vaccines (e.g., ribonucleic acid \[RNA\]-based vaccines, inactivated adenovirus-based vaccines, protein-based vaccines), including non-live-attenuated vaccines or boosters for coronavirus disease 2019 (COVID-19) during the study are allowed. 34. Participants who have received COVID-19 vaccines within 2 weeks of Baseline or participants who plan to receive COVID-19 vaccines during the study period (boosters are allowed). 35. Previously not completed COVID-19 vaccination in accordance with the CDC guidelines. 36. Participants who are allergic to any component of the study intervention or who are at risk for allergy as determined by the Investigator during the study. 37. Any condition for which the Investigator considers the participant inappropriate to participate in this study. ....

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Acclaim

    Sugar Land, Texas, 77479, United States

  • Altus Research

    Lake Worth, Florida, 33461, United States

  • Amicis Research Center

    Northridge, California, 91324, United States

  • Anchor Medical Research, LLC (Core Clinical Trials)

    Miami, Florida, 33176, United States

  • Austin Institute for Clinical Research

    Pflugerville, Texas, 78660, United States

  • CNS - Jacksonville

    Jacksonville, Florida, 32256, United States

  • CNS - Orlando SODO

    Jacksonville, Florida, 32256, United States

  • CRCC

    Charleston, South Carolina, 29407, United States

  • Cahaba

    Birmingham, Alabama, 35244, United States

  • D&H Doral Research Center LLC

    Doral, Florida, 33122, United States

  • Derm Research

    Austin, Texas, 78759, United States

  • DermDox

    Sugarloaf, Pennsylvania, 18249, United States

  • Dermatology Associates of Knoxville

    Knoxville, Tennessee, 37909, United States

  • ForCare Medical (CenExcel)

    Tampa, Florida, 33613, United States

  • Grekin Skin

    Warren, Michigan, 48088, United States

  • IMA Clinical Research

    Monroe, Louisiana, 71201, United States

  • Integrated Clinical Trial Services, Inc

    Des Moines, Iowa, 50265, United States

  • Integrative Skin

    Sacramento, California, 95815, United States

  • Lawrence Green

    Rockville, Maryland, 20850, United States

  • Life Clinical Trials

    Coral Springs, Florida, 33071, United States

  • Metro Boston

    Brighton, Massachusetts, 02135, United States

  • Metropolis Derm

    Los Angeles, California, 90017, United States

  • Minnesota Clinical Study Center

    New Ulm, Minnesota, 55112, United States

  • Mount Sinai

    New York, New York, 10003, United States

  • Moy, Fincher, Chipps

    Beverly Hills, California, 90210, United States

  • Oakland Hills Dermatology

    Auburn Hills, Michigan, 48326, United States

  • Palm Beach

    DeLand, Florida, 33484, United States

  • Progressive Clinical Research Group, Inc.

    San Antonio, Texas, 78213, United States

  • Remington-Davis, Inc.

    Columbus, Ohio, 43215, United States

  • Reserka Research

    Miami, Florida, 33176, United States

  • Revival Research Institute

    Troy, Michigan, 48084, United States

  • Sadick Research Group

    New York, New York, 10075, United States

  • Skin Surgical

    San Diego, California, 92117, United States

  • Studies in Dermatology, LLC

    Cypress, Texas, 77433, United States

  • Sweet Hope Research Specialty, Inc

    Hialeah, Florida, 33016, United States

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