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The study consists of 6 consecutive groups, and you will be randomly assigned (like a flip of a coin) to receive either a placebo (liquid without the study drug) or the study drug, at a given dose level. Those in the first group receive the study drug at the lowest dose and the dose level will increase in each proceeding group, with the highest dose of the study drug in the last group (group 6).

There is a total of 8 participants per group, 6 of which would receive the study drug and 2 would receive the placebo. You will receive either the study drug or placebo every two weeks for a total of 4 injections. During the study, neither you nor healthcare professionals at the research site will be aware of who receives the study drug or placebo.

Participants may be eligible to participate in extension phase with bi-weekly drug administration (of active drug) for up to Day 379.

Blood samples taken at each visit. Skin biopsies (a small piece of skin) and medical photographs will be taken on 3 occasions during the study.

Compensation may be provided for time and travel. Participation will come at no cost to you.


Visits
Drug administered on which days
Total
Length
Procedures
Study Length
Days
4 total (Days 1, 15, 29, and 43)
Total
23
Length
Visits take approximately 1 hour to 2 hours each, except for Days 1, 15, 29, and 43 which may take approximately 6 hours to 8 hours
Procedures
Blood samples taken at each visit and skin biopsies (a small piece of skin) and medical photographs will be taken on 3 occasions during the study
Study Length
3 month
Summary
We are recruiting subjects aged 18 to 75 years (inclusive) with plaque psoriasis, to participate in a research study that evaluates the safety of an investigational study drug (XmAb®27564), and how participants with plaque psoriasis react to the investigational study drug when given multiple times. Investigational study drug means it is a drug that has not been approved by the FDA.
Condition
Psoriasis
Treatment
XmAb27564-02

There are 5 locations for this study

Center for Clinical Studies, LTD. LLP

Center for Clinical Studies, LTD. LLP

Webster, Texas, 77598, United States
J&S Studies, Inc.

J&S Studies, Inc.

College Station, Texas, 77845, United States
Clinical Trials Research Institute

Clinical Trials Research Institute

Thousand Oaks, California, 91320, United States
RM Medical Research, Inc.

RM Medical Research, Inc.

Miami Lake, Florida, 33014, United States
Driven Research, LLC

Driven Research, LLC

Coral Gables, Florida, 33134, United States
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