Evaluate the Safety and Pharmacokinetics/Pharmacodynamics of HS-20118

Phase 1

Not yet recruiting

• Conditions: Psoriasis
• Interventions: Other: HS-20118 placebo; Drug: HS-20118

• Registration Number: NCT06846710
• Lead Sponsor: Jiangsu Hansoh Pharmaceutical Co., Ltd.

Brief Summary

The study will be conducted in 2 parts (SAD for Part 1 and MAD for Part2). Part 1 is a single-center, randomized, double-blind, placebo-controlled, SAD study to evaluate the safety, tolerability, immunogenicity, and PK of HS-20118 after a single oral dose in healthy participants.

Part 2 is a multi-center, randomized, double-blind, placebo-controlled, MAD study to evaluate the safety, tolerability, immunogenicity, PK, and PD of HS-20118 after multiple oral doses in patients with moderate to severe plaque psoriasis .

Detailed Description

The study will be conducted in 2 parts (SAD for Part 1 and MAD for Part2). Part 1 is a single-center, randomized, double-blind, placebo-controlled, SAD study to evaluate the safety, tolerability, immunogenicity, and PK of HS-20118 after a single oral dose in healthy participants.

Part 1 will consist of 5 cohorts, i.e., X1 mg, X2 mg, X3 mg, X4 mg, and X5 mg dose cohorts (each cohort will include 3 participants to receive placebo). There will be no restriction on the male-to-female ratio. Each cohort will include 12 participants (HS-20118:placebo = 9:3), with a total of 60 participants. Participants will undergo PK blood sampling, ADA blood sampling, PD blood sampling and safety examinations during the study.

Part 2 is a multi-center, randomized, double-blind, placebo-controlled, MAD study to evaluate the safety, tolerability, immunogenicity, PK, and PD of HS-20118 after multiple oral doses in patients with moderate to severe plaque psoriasis.

Part 2 will tentatively consist of 6 cohorts ( HS-20118 vs placebo = 9:3), i.e., (1) A1 mg, (2) A2 mg, (3) A3 mg, (4) A4 mg, (5) A5 mg, (6) A6 mg. Each cohort will include 12 participants (HS-20118:placebo = 9:3), with a total of 72 participants. There will be no restriction on the male-to-female ratio. Participants will undergo PK blood sampling, ADA blood sampling, PD blood sampling and safety examinations during the study.

Study Timeline

• Status Verified: 2025-02
• Study First Submitted: 2025-02-12
• Study First Submitted QC: 2025-02-20
• Last Update Submitted: 2025-02-20
• Study First Posted: 2025-02-26
• Last Update Posted: 2025-02-26
• Study Start: 2025-04-01
• Primary Completion: 2026-10-30
• Study Completion: 2027-02-28

Recruitment & Eligibility

• Status: NOT_YET_RECRUITING
• Sex: All
• Target Recruitment: 132

Inclusion Criteria

For the SAD study:

1. Healthy adults aged 18-45 years (inclusive) at the time of signing the informed consent form;
2. Male participants weighing ≥ 50 kg and female participants weighing ≥ 45 kg, both ≤ 110 kg; body mass index (weight/square of height (kg/m2)) within the range of 18-28 kg/m2 (inclusive);
3. Normal results or abnormal results but without clinical significance in comprehensive examinations, including general physical examination, vital signs, laboratory tests, 12-lead ECG, abdominal color Doppler ultrasound, and chest X-ray from the frontal and lateral position ;

For the MAD study:

1. Male or female participants aged 18-65 years (inclusive) at the time of signing the informed consent form;
2. Male participants weighing ≥ 50 kg and female participants weighing ≥ 45 kg, both ≤ 110 kg;
3. Chronic plaque psoriasis for at least 6 months with or without psoriatic arthritis;

Exclusion Criteria

For the SAD study:

1. Participants with immune-related diseases and medical history at screening;
2. Participants with a history of drug or other allergies who are considered by the investigator to be at high risk for participating in this study, or who may be allergic to the investigational medicinal product or any component of the investigational medicinal product as judged by the investigator;
3. History of drug abuse within the past 5 years or use of illicit drugs within 3 months before the study; or positive for urine drug screening;

For the MAD study:

1. Guttate psoriasis, pustular psoriasis, erythrodermic psoriasis, drug-induced psoriasis, or other diseases that affect the treatment results;
2. Current use of illicit drugs or prior use of illicit drugs within the specific time periods;
3. Known history of recurrent or chronic infections, or prior history of chronic or recurrent infections, including but not limited to: chronic renal infection, chronic chest infection (e.g., bronchiectasis), symptomatic urinary tract infection, and open, draining, or infected skin wounds; history of serious infections (e.g., sepsis, pneumonia, and pyelonephritis), or hospitalization or treatment with intravenous antibiotics for infections within 2 months before screening;

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SEQUENTIAL

Arm && Interventions

Group	Intervention	Description
placebo	HS-20118 placebo	Single and multiple ascending doses of HS-20118-matched placebo orally
HS-20118	HS-20118	Single and multiple ascending doses of HS-20118 orally

Primary Outcome Measures

Name	Time	Method
Incidence, severity and association with the study drug of adverse events (AEs), serious AEs (SAEs), and AEs leading to discontinuation	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	adverse events (AEs), serious AEs (SAEs), and AEs leading to discontinuation
Number of participants with abnormalities of physical examination	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Physical examination includes skin, mucous membranes, lymph nodes, head, neck, chest, abdomen, and spine/limbs, etc.
Number of participants with abnormalities of vital signs	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Vital sign measured include body temperature, blood pressure, pulse, and respiratory rate.
Number of participants with clinical laboratory abnormalities	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Clinical laboratory tests include blood biochemistry test, hematology test, urinalysis, coagulation function test, etc.
Number of participants with abnormalities of electrocardiogram (ECG) parameters	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	ECG parameters include heart rate, PR interval, RR interval, QRS duration, QTcF interval.

Secondary Outcome Measures

Name	Time	Method
Cmax	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Maximum plasma concentration
Tmax	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Time to reach Cmax
AUC	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Area under the plasma concentration-time curve
t½	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Terminal half-life
CL/F	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Apparent clearance
Vd/F	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Apparent volume of distribution
Rac	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Accumulation ratio
Incidence of Anti-drug antibody (ADA)	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	Anti-drug antibody (ADA)
Proportions of psoriasis area and severity index (PASI) 75	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The PASI assessment will assess erythema, thickening (plaque evaluation, induration), and scaling (desquamation) on the head, trunk, upper limbs, and lower limbs, respectively
Proportions of psoriasis area and severity index (PASI) 90	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The PASI assessment will assess erythema, thickening (plaque evaluation, induration), and scaling (desquamation) on the head, trunk, upper limbs, and lower limbs, respectively
Proportions of psoriasis area and severity index (PASI) 100	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The PASI assessment will assess erythema, thickening (plaque evaluation, induration), and scaling (desquamation) on the head, trunk, upper limbs, and lower limbs, respectively
Proportions of Investigator's Global Assessment (IGA) 0/1	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The investigator scores each of infiltration/hypertrophy (I), erythema (E), and scaling (S) as a whole
Proportions of Investigator's Global Assessment (IGA) 0	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The investigator scores each of infiltration/hypertrophy (I), erythema (E), and scaling (S) as a whole
Change from baseline in psoriasis area and severity index (PASI) total score	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The PASI assessment will assess erythema, thickening (plaque evaluation, induration), and scaling (desquamation) on the head, trunk, upper limbs, and lower limbs, respectively
Change from baseline in body surface area (BSA)	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The total BSA affected by plaque psoriasis is estimated based on the percent area affected, including head, trunk, upper extremities, and lower extremities
Change from baseline in dermatology life quality index (DLQI)	Day 1 up to Day 36 (SAD), Day 1 up to Day 71 (MAD)	The DLQI is a 10-item general dermatology disability index designed to assess health-related quality of life in adult participants with skin diseases such as eczema, psoriasis, acne, and viral warts