Safety and Efficacy of TLL018 in Patients With Plaque Psoriasis

Study Purpose

This study is a randomized, double-blind, placebo-controlled, multicenter clinical trial of about 70 subjects with moderate to severe plaque psoriasis.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 18 Years - 75 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Have had a diagnosis of moderate to severe plaque psoriasis for at least 6 months prior to Baseline; - Subjects with moderate to severe plaque psoriasis covering ≥10% BSA, with a PASI ≥12 and sPGA score ≥3 at Baseline; - Able and willing to give written informed consent.

Exclusion Criteria:

  • - Other types of psoriasis (such as erythrodermic psoriasis, pustular psoriasis, guttate psoriasis, etc.); - Current drug-induced psoriasis, e.g., a new onset of psoriasis or an exacerbation of psoriasis induced by beta blockers, calcium channel blockers, antimalarial drugs or lithium; - History or symptoms of malignancy in any organ system regardless of treatment, and regardless of evidence of recurrence or metastasis; - Any uncontrolled clinically significant laboratory abnormality that would affect interpretation of study data or the subject's participation in the study.

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Hangzhou Highlightll Pharmaceutical Co., Ltd
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Principal Investigator Affiliation N/A
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Not yet recruiting

The disease, disorder, syndrome, illness, or injury that is being studied.

Moderate to Severe Plaque Psoriasis
Additional Details

Successfully screened subjects will be randomized in a ratio of 2:2:2:1 and stratified to previous biologics use for psoriasis. After a 4-week screening period (day -28-0), subjects will be randomly assigned to treatment for 12 weeks. Clinical psoriasis area and severity index (PASI), Physician's Global Assessment (PGA), dermatological Quality of Life Index (DLQI), physical exams and Laboratory tests will be performed at baseline, the end of weeks 4, 8 and 12 respectively.

Arms & Interventions


Experimental: Cohort 1

TLL018 tablets, 1piece,BID

Experimental: Cohort 2

TLL018 tablets, 2pieces, BID

Experimental: Cohort 3

TLL018 tablets, 3pieces, BID

Placebo Comparator: Cohort 4

TLL018 placeboes, 3pieces, BID


Drug: - TLL018 tablets

Oral tablets administered at different doses BID daily for 12 weeks.

Contact Information

This trial has no sites locations listed at this time. If you are interested in learning more, you can contact the trial's primary contact:

For additional contact information, you can also visit the trial on

The content provided on clinical trials is for informational purposes only and is not a substitute for medical consultation with your healthcare provider. We do not recommend or endorse any specific study and you are advised to discuss the information shown with your healthcare provider. While we believe the information presented on this website to be accurate at the time of writing, we do not guarantee that its contents are correct, complete, or applicable to any particular individual situation. We strongly encourage individuals to seek out appropriate medical advice and treatment from their physicians. We cannot guarantee the availability of any clinical trial listed and will not be responsible if you are considered ineligible to participate in a given clinical trial. We are also not liable for any injury arising as a result of participation.