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To Evaluate the Efficacy and Safety of AK111 Injection in the Treatment of Moderate to Severe Plaque Psoriasis

Phase 2
Completed
Conditions
Psoriasis
Skin Diseases
Interventions
Registration Number
NCT06061471
Lead Sponsor
Akeso
Brief Summary

This is a randomized, double-blind phase II clinical study to evaluate the efficacy and safety of AK111 in the treatment of subjects with moderate to severe plaque psoriasis.

Detailed Description

This is a randomized, double-blind phase II clinical study to evaluate the efficacy and safety of AK111 in the treatment of subjects with moderate to severe plaque psoriasis. The study has 2 parts: first part (randomized double-blind) and second part (open).

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
454
Inclusion Criteria
  1. Male or female subjects aged ≥18 years old.
  2. Subjects with moderate to severe plaque psoriasis with or without psoriatic arthritis.
  3. At screening and baseline, PASI score ≥ 12, BSA ≥ 10%, sPGA ≥ 3.
  4. Suitable for systematic therapy assessed by investigators.
  5. Subjects who are women of childbearing potential must be practicing an adequate, medically acceptable method of birth control during the study and for at least 6 months after the last investigational drug administration.
Exclusion Criteria
  1. Types of psoriasis other than chronic plaque-type psoriasis.
  2. Drug-induced psoriasis.
  3. Evidence of active TB. Patients with evidence of latent tuberculosis may enter the trial after sufficient treatment had initiated and maintained according to protocol.
  4. Positive results of confirmatory test for hepatitis B, hepatitis C, human immunodeficiency virus (HIV) or syphilis.
  5. History of repeated chronic infection, had any serious infection or systemic infection within 2 months before screening.
  6. Progressive or uncontrolled symptoms or signs of circulatory, respiratory, digestive, neuropsychiatric or psychological,hematological, endocrine and other systems before randomization.
  7. History of malignant tumour within 5 years before screening.
  8. Previous or current autoimmune diseases.
  9. Allergic to any component of the investigational drug, or have had severe allergic reactions to monoclonal antibodies.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Experimental: AK111 regimen 1AK111-
Experimental: AK111 regimen 2AK111-
Primary Outcome Measures
NameTimeMethod
The percentage of subjects who achieved at least 75% reduction in Psoriasis Area Severity Index (PASI)score from baseline (PASI 75) and the percentage of subjects with sPGA 0/1 at week 16.at week 16

PASI is a combined assessment of a lesion severity and affected area into a single score: 0 (no disease) to 72(maximal disease). The body is divided into 4 areas for scoring (head, arms, trunk, legs; each area is scored by itself and scores are combined for a final PASI. For each area, percent of skin involved is estimated: 0 (0%) to 6 (90-100%),and severity is estimated by clinical signs, erythema, induration and desquamation: scale 0 (none) to 4 (maximum).Final PASI = sum of severity parameters for each area \* area score weight of section (head: 0.1, arms: 0.2, body: 0.3,legs: 0.4).PASI 50, PASI75 and PASI 90 were defined as participants achieving \>= 50%, \>= 75% or \>= 90% improvement from baseline, respectively.The sPGA is an instrument providing a subjective evaluation of the overall severity of psoriasis, based on severity of induration, scaling, and erythema. The scores are: 0 = clear; 1 = minimal; 2 = mild; 3 = moderate; 4 = marked; 5 =severe.

Secondary Outcome Measures
NameTimeMethod
The percentage of subjects who achieved at least 90% reduction in PASI score from baseline (PASI 90).at week 16

Trial Locations

Locations (11)

The First Affiliated Hospital of Bengbu Medical College

🇨🇳

Bengbu, Anhui, China

The First Affiliated Hospital of Wannan Medical College

🇨🇳

Wuhu, Anhui, China

Affiliated Hospital of Chengde Medical University

🇨🇳

Chengde, Hebei, China

Nanyang First People's hospital national third class a hospital

🇨🇳

Nanyang, Henan, China

Yichang central People's hospital

🇨🇳

Yichang, Hubei, China

The Third Xiangya Hospital of Central South University

🇨🇳

Changsha, Hunan, China

The affiliated hospital of Xuzhou Medical University

🇨🇳

Xuzhou, Jiangsu, China

Dermatology hospital of Jiangxi province

🇨🇳

Nanchang, Jiangxi, China

Tianjin academy of traditional Chinese medicine affiliated hospital

🇨🇳

Tianjin, Tianjin, China

Hangzhou First People's hospital

🇨🇳

Hangzhou, Zhejiang, China

The first hospital of Jiaxing

🇨🇳

Jiaxing, Zhejiang, China

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