A 12-Week Open-Label Followed by 4-Week Double-Blind Study to Determine the Safety and Efficacy of an Extended Course of Alefacept (LFA-3/IgG1 Fusion Protein) in Subjects With Chronic Plaque Psoriasis
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Safety of an extended courses of alefacept when administered to subjects with chronic plaque psoriasis. Safety parameters: Physical examinations; vital signs; infections; blood test: lymphocyte subset analysis (CD4+); and adverse events.
研究概览
简要总结
Previous Biogen studies have provided experience with the tolerability, immunogenicity, and efficacy of a single and multiple 12-week courses of therapy of alefacept. At this stage, experience in larger studies, as well as the FDA-approved labeling, is confined to treatment courses of 12 weeks. The purpose of the present study is to offer an extended course of therapy with alefacept.
详细描述
Twenty statistically matched patients (15 males, 5 females, aged between 28 and 70 years, median 50 years) with moderate to severe psoriasis (PASI: 7-36) were included in this study. They were treated with 15 mg alefacept i.m. weekly. Peripheral blood was taken prior to first alefacept application and then weekly until week five and thereafter every second week, until the end of treatment at week 13. At the same time points severity of disease and thereby possible reduction of symptoms was evaluated applying the PASI. Investigators analysing the samples were blinded to the outcome of the study. The protocol concerning human subjects was approved by the ethics commission of the Charité University Medicine Berlin Campus Mitte, Germany .
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Must give written informed consent.
- •Must require systemic therapy or phototherapy for their psoriasis, as determined by the investigator prior to Visit 1.
排除标准
- •Female subjects who are not postmenopausal for at least 1 year, surgically sterile, or willing to practice effective contraception during the study. Nursing mothers, pregnant women and women planning to become pregnant while on study are to be excluded.
- •Current enrollment in any investigational study in which the subject is receiving any type of drug, biologic, or non-drug therapy (participation in registry-type studies is allowed).
- •Serious local infection (e.g., abscess) or systemic infection (e.g., pneumonia, septicemia) within the 3 months prior to the first dose of investigational drug.
- •Any subject whose CD4+ lymphocyte count at study entry is less than 404 cells/mm
- •Treatment with another investigational drug or approved therapy for investigational use within 28 days prior to investigational drug administration.
- •Treatment with systemic retinoids, systemic steroids, methotrexate, cyclosporine, azathioprine, thioguanine or other systemic immunosuppressant agents within the 28 days prior to investigational drug administration.
- •Phototherapy, including Ultraviolet B (UVB) and Psoralen + Ultraviolet A (PUVA), within 28 days prior to investigational drug administration.
- •Known HIV+, known viral Hepatitis infection, known tuberculosis infection.
研究组 & 干预措施
Alefacept
干预措施: Alefacept (Drug)
结局指标
主要结局
Safety of an extended courses of alefacept when administered to subjects with chronic plaque psoriasis. Safety parameters: Physical examinations; vital signs; infections; blood test: lymphocyte subset analysis (CD4+); and adverse events.
时间窗: 12 + 4 weeks
次要结局
- Efficacy of an extended course of alefacept when administered to subjects with chronic plaque psoriasis: Time to requirement of additional systemic therapies, Psoriasis Area and Severity Index (PASI); Physician Global Assessment (PGA).(12 + 4 weeks)