A Phase 2 Study of ZL-1102 in Patients With Chronic Plaque Psoriasis

Phase 2

Recruiting

• Conditions: Plaque Psoriasis
• Interventions: Drug: ZL-1102 3% w/w gel BID for 16 weeks; Drug: ZL-1102 3% w/w gel QD for 16 weeks; Drug: Placebo ZL-1102 0% w/w gel BID for 16 weeks; Drug: Placebo ZL-1102 0% w/w gel QD for 16 weeks; Drug: ZL-1102 1% w/w gel BID for 16 weeks

• Registration Number: NCT06380907
• Lead Sponsor: Zai Lab (Hong Kong), Ltd.

Brief Summary

A Randomized, Double-Blind, Vehicle-Controlled, Multicenter, Dose-Ranging, Phase 2 Study to Evaluate the Efficacy and Safety of Different Doses of ZL-1102 Topical gel (A Human VH IL-17A Antibody Fragment) in the Treatment of Chronic Plaque Psoriasis

Detailed Description

This is a randomized, double-blind, vehicle-controlled, dose-ranging, phase 2 study of ZL-1102 in patients with chronic plaque psoriasis. Approximately 250 patients will be randomized at a ratio of 1:1:1:1:1 to 5 treatment arms for 16 weeks of treatment.

Study Timeline

• Study First Submitted: 2022-11-15
• Study First Submitted QC: 2024-04-23
• Study First Posted: 2024-04-24
• Study Start: 2024-05-22
• Status Verified: 2024-11
• Last Update Submitted: 2024-11-01
• Last Update Posted: 2024-11-05
• Primary Completion: 2026-02-28
• Study Completion: 2026-03

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 250

Inclusion Criteria

1. Adults ≥ 18 years of age.

2. Willing and able to provide signed and dated informed consent prior to any study-related procedures, and willing and able to comply with all study procedures

3. Clinical diagnosis of psoriasis vulgaris of at least 6 months duration as determined by Investigator via medical records or in medical history obtained from the patient, is currently eligible for topical treatment and meets all the following criteria at screening and baseline:

   1. IGA ≥ 2 (5 score system)
   2. Affected BSA 3%-15% (excluding head)

4. Agree not to have prolonged sun exposure (e.g., recreational) during the study period. Tanning bed use or use of other light-emitting diodes (LEDs) is not allowed.

Exclusion Criteria

1. Other types of psoriasis dominant other than plaque psoriasis (e.g., psoriatic arthritis, pustular, erythrodermic, guttate, palmar, plantar, scalp or nail disease) or the lesion is not eligible for topical treatment only.

2. Patients with any serious medical/psychiatric condition or clinically significant laboratory abnormality that would prevent study participation or place the patient at significant risk, as determined by the Investigator.

3. Known or suspected:

   1. Severe renal insufficiency or hepatic insufficiency.
   2. History of severe depression or suicidal ideation or behavior within 2 years prior to screening.

4. Positive for any of the following tests at screening:

   1. Human immunodeficiency virus (HIV): HIV antibody
   2. Hepatitis B virus (HBV): hepatitis B surface antigen (HBsAg)/hepatitis B core antibody (HBcAb)/HBV DNA
   3. Hepatitis C virus (HCV): HCV RNA

5. Patients with active tuberculosis (TB) or untreated latent TB per local guidelines.

6. History of and/or concurrent condition of inflammatory bowel disease (IBD) (ulcerative colitis and Crohn's disease), or signs/symptoms of IBD at screening that, in the opinion of the Investigator, pose an unacceptable risk to the patient if participating in the study.

7. History of and/or concurrent condition of serious hypersensitivity (anaphylactic shock or anaphylactoid reaction) to IL-17 antibodies and any human or humanized biological agents.

8. Patients who have a history of malignancy unless deemed cured by adequate treatment with no evidence of recurrence for ≥ 3 years before the initiation of study treatment.

9. Patients with a history of chronic alcohol or drug abuse within 6 months of the initiation of study treatment, as determined by the Investigator.

10. Prior exposure to ZL-1102.

11. Patients who have received a live vaccine within 6 weeks prior to dosing on Day 1.

12. Females who are pregnant, wishing to become pregnant during the study, or are breastfeeding

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Arm 2	ZL-1102 3% w/w gel BID for 16 weeks	ZL-1102
Arm 3	ZL-1102 3% w/w gel QD for 16 weeks	ZL-1102
Arm 4	Placebo ZL-1102 0% w/w gel BID for 16 weeks	Vehicle
Arm 5	Placebo ZL-1102 0% w/w gel QD for 16 weeks	Vehicle
Arm 1	ZL-1102 1% w/w gel BID for 16 weeks	ZL-1102

Primary Outcome Measures

Name	Time	Method
Efficacy of different doses of ZL-1102 compared to Vehicle at Week 16.	16 weeks	The proportion of patients achieving mPASI 75 (at least a 75% reduction in mPASI score from baseline) at Week 16.

Secondary Outcome Measures

Name	Time	Method
Serum concentration of ZL-1102.	16 Weeks	Serum concentration of ZL-1102.
The proportion of patients achieving IGA score of 0 or 1.	20 Weeks	The proportion of patients achieving an IGA score of 0 or 1 at Weeks 2, 4, 8, 12, 16, and 20
The proportion of patients achieving mPASI 50/90/100 at Weeks 2, 4, 8, 12, 16, and 20.	20 Weeks	The proportion of patients achieving mPASII 50/90/100 at Weeks 2, 4, 8, 12,16, and 20.
Mean local tolerability scores (LTS)	20 Weeks	Mean local tolerability scores at Weeks 2, 4,8, 12,16, and 20
Time to achieve IGA score of 0 or 1.	20 Weeks	Time to achieve IGA score of 0 or 1 through Week 20.
Time to achieve 1- or 2-point improvement in IGA.	20 Weeks	Time to achieve 1- or 2-point improvement in IGA score through Week 20.
Anti-drug antibody (ADA) of ZL-1102.	16 Weeks	Incidence, prevalence, and titers of ADA of ZL-1102 in this study
The percent change from baseline in mPASI score.	20 Weeks	The percent change from baseline in mPASI score at Weeks 2, 4, 8, 12, 16, and 20.
The proportion of patients achieving mPASI 75 at Week 2, 4, 8, 12, and 20.	20 Weeks	The proportion of patients achieving mPASI 75 at Week 2, 4, 8, 12, and 20.
The proportion of patients achieving IGA treatment success.	20 Weeks	The proportion of patients achieving IGA treatment success, defined as an IGA score of 0 or 1 with at least a 2-point improvement from baseline at Weeks 2, 4, 8, 12, 16,and 20.
Time to achieve mPASI 50/75/90.	20 Weeks	The time to achieve mPASI 50/75/90 through week 20.
Incidence of Treatment Related Adverse Events through Week 20.	20 Weeks	Number of patients with treatment related adverse events through week 20.

Trial Locations

Locations (10)

Zai Lab Site 5013; 🇦🇺 Phillip, Australian Capital Territory, Australia

Zai Lab Site 5021; 🇦🇺 Kogarah, New South Wales, Australia

Zai Lab Site 5016; 🇦🇺 Kotara, New South Wales, Australia

Zai Lab Site 5020; 🇦🇺 Birtinya, Queensland, Australia

Zai Lab Site 5019; 🇦🇺 Coorparoo, Queensland, Australia

Zai Lab Site 5017; 🇦🇺 Woolloongabba, Queensland, Australia

Zai Lab Site 5014; 🇦🇺 Carlton, Victoria, Australia

Zai Lab Site 5002; 🇦🇺 Melbourne E., Victoria, Australia

Zai Lab Site 5015; 🇦🇺 Melbourne, Victoria, Australia

Zai Lab Site 5018; 🇦🇺 Parkville, Victoria, Australia