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A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Efficacy of ASC50 Tables in Healthy Participants and Participants With Plaque Psoriasis

A Phase I, Randomized, Double-blind, Placebo Controlled, Single and Multiple Ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Food Effect of ASC50 Tablets in Healthy Adult Participants and Adult Participants With Mild to Moderate Plaque Psoriasis

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07024602
Enrollment
94
Registered
2025-06-17
Start date
2025-06-30
Completion date
2026-06-30
Last updated
2025-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Plaque Psoriasis

Keywords

ASC50, Plaque Psoriasis

Brief summary

This is a phase I, randomized, double-blind, placebo-controlled, single and multiple ascending dose study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, food effect of ASC50 tablets in healthy adult participants and adult participants with mild to moderate plaque psoriasis.

Interventions

DRUGASC50 tablets or matching placebo

Drug: ASC50 administered orally Drug: Placebo administered orally

Sponsors

Ascletis Pharma (China) Co., Limited
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Male and female participants between 18 to 65 years of age inclusive, at the time of screening. 2. Willing and able to give informed consent prior to any study specific procedures being performed. 3. Have venous access sufficient to allow for blood sampling

Exclusion criteria

1. Female participants who are pregnant, breastfeeding or plan to be pregnant during the study period and 3 months after last dose. 2. History or presence of any clinically relevant acute or chronic medical or psychiatric condition that could interfere with the subject's safety during the clinical study or expose the subject to undue risk as judged by the Investigator. 3. Have received systemic immunosuppressive therapy (MTX, apremilast, azathioprine, cyclosporine, 6-thioguanine, mercaptopurine, mycophenolate mofetil, hydroxyurea, and tacrolimus) within 4 weeks of first administration of study drug. 4. Have any other conditions, which, in the opinion of the investigator or sponsor, would make the participant unsuitable for inclusion or could interfere with the participant participating in or completing the study.

Design outcomes

Primary

MeasureTime frameDescription
Adverse EventsUp to Day 7Evaluate the incidence of Serious Adverse Events (SAEs) and Adverse Events (AEs)

Secondary

MeasureTime frameDescription
CmaxUp to Day 7Evaluate the Peak Plasma Concentration of ASC50
T1/2Up to Day 7Evaluate the Terminal-Phase Half-Life of ASC50
TmaxUp to Day 7Evaluate the time to reach the maximum concentration of ASC50
IL-17AUp to Day 7Changes in IL-17A after ASC50 administration
AUCUp to Day 7Evaluate the Area under the plasma concentration versus time curve of ASC50
IL-19Up to Day 29Changes in IL-19 after ASC50 administration
Psoriasis Area and Severity Index (PASI)Up to Day 43Changes in Psoriasis Area and Severity Index (PASI) after ASC50 treatment.
Target Lesion Severity Score (TLSS)Up to Day 43Changes in Target Lesion Severity Score (TLSS)after ASC50 treatment.
Beta Defensin-2Up to Day 29Changes in Beta Defensin-2 after ASC50 administration

Countries

United States

Contacts

Primary ContactVanessa Wang, MD
global.clinical@ascletis.com+86 18986192094

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026