A Phase 2 Study of Recombinant Anti-IL-17A Humanized Monoclonal Antibody in Chinese Participants With Moderate-to-Severe Plaque Psoriasis
- Conditions
- Psoriasis
- Interventions
- Drug: Recombinant Anti-IL-17A Humanized Monoclonal Antibody InjectionOther: Placebo
- Registration Number
- NCT05604898
- Brief Summary
The purpose of this study is to determine the efficacy and safety of the study drug recombinant anti-IL-17A humanized monoclonal antibody in Chinese participants with moderate-to-severe plaque psoriasis.
- Detailed Description
Study SSGJ-608-PsO-II-01 is a phase 2, multicenter, randomized, double-blind, placebo-controlled, multiple-dose escalation and dose finding study to identify the doses of treatments ，and to further evaluate the effect of different dose regimens of recombinant anti-IL-17A humanized monoclonal antibody versus placebo in Chinese participants with moderate-to-severe plaque psoriasis during an induction dosing period with dosing for 12 weeks, followed by a randomized, double-blind, 40-week maintenance dosing period. Phase Ib One of three dose levels of copanlisib is assigned at registration according to the dose escalation scheme. Phase II The copanlisib dose for the Phase II part of the trial will be based on the MTD established in the Phase Ib part of the study.
Recruitment & Eligibility
- Status
- ACTIVE_NOT_RECRUITING
- Sex
- All
- Target Recruitment
- 139
- Must be 18 Years to 65 Years, both male and female.
- BMI ≥18 kg/m^2 and ≤32 kg/m^2 ，and male weight ≥50 kg, female weight ≥45 kg during the screening.
- Chronic plaque psoriasis (PSO) for at least 6 months prior to the randomizationas as determined by the investigator..
- Psoriasis Area Severity Index (PASI) >=12 and body surface area (BSA) affected by PSO >=10% and Static Physician Global Assessment (sPGA) score >=3.
- According to the judgment of the investigator, the subject needs to receive systemic treatment and / or phototherapy (including subjects who have used local treatment, and / or phototherapy, and / or poor control of previous systemic treatment).
- Subject must be able to understand and comply with the requirements of the study. and must participate voluntarily and sign the written informed consent.
- History of pustular or erythrodermic psoriasis other than plaque psoriasis at screening or baseline.
- History of drug-induced psoriasis.
- Ongoing use of prohibited treatments.
- Have previously received any drug that directly targets IL-17.
- Have concurrent or recent use of any biologic agent within washout periods or <5 half-lives prior to randomization.
- Chronic infections including HIV, viral hepatitis (hepatitis B, hepatitis C), syphilis and/ or active tuberculosis.
- Pregnant or lactating women.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Part 1：608 40 mg Recombinant Anti-IL-17A Humanized Monoclonal Antibody Injection Randomized in a 6:2 ratio to 608 40mg or placebo 2-weekly by subcutaneous injection during induction period. During the maintenance period, participants will receive 608 40mg or placebo 4-weekly. Part 1：608 40 mg Placebo Randomized in a 6:2 ratio to 608 40mg or placebo 2-weekly by subcutaneous injection during induction period. During the maintenance period, participants will receive 608 40mg or placebo 4-weekly. Part 1：608 80 mg Recombinant Anti-IL-17A Humanized Monoclonal Antibody Injection Randomized in a 10:2 ratio to 608 80mg or placebo 2-weekly by subcutaneous injection during induction period. During the maintenance period, participants will receive 608 80mg or placebo 4-weekly. Part 1：608 80 mg Placebo Randomized in a 10:2 ratio to 608 80mg or placebo 2-weekly by subcutaneous injection during induction period. During the maintenance period, participants will receive 608 80mg or placebo 4-weekly. Part 1：608 160 mg Recombinant Anti-IL-17A Humanized Monoclonal Antibody Injection Randomized in a 10:2 ratio to 608 160mg or placebo 2-weekly by subcutaneous injection during induction period. During the maintenance period, participants will receive 608 160mg or placebo 4-weekly. Part 1：608 160 mg Placebo Randomized in a 10:2 ratio to 608 160mg or placebo 2-weekly by subcutaneous injection during induction period. During the maintenance period, participants will receive 608 160mg or placebo 4-weekly. Part 2：608 160 mg W0+80 mg Q2W+80 mg Q4W Recombinant Anti-IL-17A Humanized Monoclonal Antibody Injection Participants will receive starting dose of 160 mg 608 at week 0 followed by 80mg 608 once every two weeks (Q2W) by subcutaneous injection during induction period. During the maintenance period, participants will receive 80mg 608 once every four weeks (Q4W). Part 2：608 160 mg W0+80 mg Q2W+80 mg Q4W Placebo Participants will receive starting dose of 160 mg 608 at week 0 followed by 80mg 608 once every two weeks (Q2W) by subcutaneous injection during induction period. During the maintenance period, participants will receive 80mg 608 once every four weeks (Q4W). Part 2：608 160 mg Q2W+160 mg Q4W Recombinant Anti-IL-17A Humanized Monoclonal Antibody Injection Participants will receive 160mg 608 once every two weeks (Q2W) by subcutaneous injection during induction period followed by 160mg 608 once every four weeks (Q4W) during maintenance period. Part 2：608 160 mg Q4W+160 mg Q8W Recombinant Anti-IL-17A Humanized Monoclonal Antibody Injection Participants will receive 160mg 608 once every four weeks (Q4W) by subcutaneous injection during induction period followed by 160mg 608 once every eight weeks (Q8W) during maintenance period. Part 2：608 160 mg Q4W+160 mg Q8W Placebo Participants will receive 160mg 608 once every four weeks (Q4W) by subcutaneous injection during induction period followed by 160mg 608 once every eight weeks (Q8W) during maintenance period. Part 2：Placebo Placebo Participants will receive Placebo by subcutaneous injection.
- Primary Outcome Measures
Name Time Method Incidence and severity of treatment emergent adverse event (TEAE). Up to 64 Weeks The incidence and severity of treatment emergent adverse event (TEAE), including adverse events (AEs)，serious adverse event (SAE) and AEs associated with the use of the drug, as well as clinical symptoms, and any abnormalities of vital signs, physical examinations，electrocardiogram，laboratory tests and, etc.
- Secondary Outcome Measures
Name Time Method AUC0-tau Week 0 to 16 To assess the area under the concentration time-curves from time zero to the dosing interval tau.
Rac_Cmax week 0,12 Accumulation ratio based on maximum plasma concentration (Cmax) calculated as: Rac_Cmax = Cmax at steady state (ss) divided by Cmax at first dose.
Rac_AUC0-tau week 0,12 Accumulation ratio calculated as, Rac obtained from Area Under the Concentration Time Curve (AUCτau) from time 0-τau（Week 12） divided by AUC from time 0-τau （Week 0）
Cmax Week 0 to 16 To assess the maximum plasma level of 608.
Tmax Week 0 to 16 To assess the time to peak 608 concentration.
Cmin Week 0 to 48 To assess the minimum plasma level of 608.
AUC0-last Week 0 to 16 To assess the area under the concentration time-curves from time zero to the time of the last quantifiable concentration after dosing.
Number of Participants Positive for Anti-Drug Antibody (ADA) in Part 1. Week 0,4,8,12,16,24,48,64 Serum ADA positivity is determined over course of the trial duration.
Number of Participants Positive for Anti-Drug Antibody (ADA) in Part 2. Week 0,8,20,44,64 Serum ADA positivity is determined over course of the trial duration.
Percentage of Participants Achieving a ≥75% Improvement in Psoriasis Area and Severity Index (PASI 75) At Week 12 The PASI combines the extent of body surface involvement in 4 anatomical regions (head, trunk, arms, and legs). For each region the percent area of skin involved was estimated from 0 (0%) to 6 (90%-100%) and severity was estimated by clinical signs of erythema, induration and scaling with a scores range from 0 (no involvement) to 4 (severe involvement). Each area is scored by itself and the scores then combined for the final PASI. Final PASI calculated as: sum of severity parameters for each region \* area score \* weighing factor \[head (0.1), upper limbs (0.2), trunk (0.3), lower limbs(0.4)\]. Overall scores range from 0 (no Ps) to 72 (the most severe disease).
Percentage of Participants With a Static Physician Global Assessment (sPGA) Score of Clear (0) or Minimal (1) With at Least a 2 Point Improvement At Week 12 The sPGA is the physician's determination of the participant's Ps lesions overall at a given time point. Lesions were categorized by descriptions for induration, erythema, and scaling. Participants Ps were assessed as 0 (clear), 1 (minimal), 2 (mild), 3 (moderate), 4 (severe), or 5 (very severe). An sPGA responder was defined as having a postbaseline sPGA score of "0" or "1" with at least a 2-point improvement from baseline.
Percentage of Participants Achieving a ≥90% Improvement in Psoriasis Area and Severity Index (PASI 90) At Week 12 The PASI combines the extent of body surface involvement in 4 anatomical regions (head, trunk, arms, and legs). For each region the percent area of skin involved was estimated from 0 (0%) to 6 (90%-100%) and severity was estimated by clinical signs of erythema, induration and scaling with a scores range from 0 (no involvement) to 4 (severe involvement). Each area is scored by itself and the scores then combined for the final PASI. Final PASI calculated as: sum of severity parameters for each region \* area score \* weighing factor \[head (0.1), upper limbs (0.2), trunk (0.3), lower limbs(0.4)\]. Overall scores range from 0 (no Ps) to 72 (the most severe disease).
Percentage of Participants Achieving a 100% Improvement in Psoriasis Area and Severity Index (PASI 100) At Week 12 The PASI combines the extent of body surface involvement in 4 anatomical regions (head, trunk, arms, and legs). For each region the percent area of skin involved was estimated from 0 (0%) to 6 (90%-100%) and severity was estimated by clinical signs of erythema, induration and scaling with a scores range from 0 (no involvement) to 4 (severe involvement). Each area is scored by itself and the scores then combined for the final PASI. Final PASI calculated as: sum of severity parameters for each region \* area score \* weighing factor \[head (0.1), upper limbs (0.2), trunk (0.3), lower limbs(0.4)\]. Overall scores range from 0 (no Ps) to 72 (the most severe disease).
Trial Locations
- Locations (3)
Shanghai Dermatology Hospital
🇨🇳Shanghai, Shanghai, China
Huashan Hospital Fudan University
🇨🇳Shanghai, Shanghai, China
The First Affiliated Hospital of Kunming Medical University
🇨🇳Kunming, Yunnan, China