Cell Responses to IFN-gamma

NCT01317017 | Terminated Early Phase 1

• 1 other identifier: MLO-0717
• Study Type: interventional
• Target: 2
• Locations: 1 country
• Sites: 1

Brief Summary

IFN-gamma is a central player in the development of psoriasis lesions, which can be involved a variety of cellular processes in the skin. Dendritic cells are important cells in driving inflammation in psoriasis through the induction of T cells that produce IL-17 in psoriasis. Injecting IFN-g into the skin can increase the numbers of T cells and also inflammatory DCs that produce cytokines involved in IL-17 production. Thus, the investigators hypothesize that the dendritic cells present in the skin after IFN-g injection polarize IL-17-producing T cells.

Conditions

Plaque Psoriasis

Keywords

Psoriasis

Outcome Measures

Primary Outcomes (1)

• Function of dendritic cells from IFNg-injected skin

  To perform an assay using dendritic cells from the biopsy as stimulator cells and T cells as responders.

  6 months

Secondary Outcomes (1)

• Flow cytometry analysis of circulating leukocyte populations

  9 months

Interventions

Actimmune DRUG

* All subjects will receive one intradermal injections of 0.25ml of IFN-g (Actimmune TM 100 micrograms/0.5ml), in normal appearing skin of both normal volunteers and psoriasis patients. * Blood will be taken at baseline and day 1. A skin biopsy (6mm punch) will be taken at the injection site 24 hours later. * Patients will return at one to two weeks for suture removal. * Clinical assessments done at every visit. * Patients will also be evaluated at each visit for any adverse events.

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Signed informed consent
• Normal volunteers with no evidence of skin disease OR diagnosis of plaque type psoriasis for at least 6 months
• years of age or greater
• For women of childbearing potential or in men whose partners may become pregnant, willingness to use an acceptable method of contraception to prevent pregnancy for the duration of the study. Acceptable methods of contraception include use of a condom; abstinence; use by sexual partner of oral implantable or injectable contraceptives, IUD, female condom, diaphragm with spermicide, cervical cap; or a sterile sexual partner

You may not qualify if:

• Guttate, erythrodermic, or pustular psoriasis as sole or predominant form of psoriasis
• Clinically significant psoriasis flare during screening or on the first treatment day
• Hypersensitivity to IFN-g or E. coli derivatives
• Pre-existing, uncontrolled myelosuppression, cardiac disease, seizure disorders, compromised central nervous system function or multiple sclerosis
• History of malignancy, clinically significant renal insufficiency, poorly controlled medical conditions that would increase the risks
• Presence of malignancy within the past 5 years, including lymphoproliferative disorders. Subjects with a history of fully resolved basal cell or squamous cell skin cancer may be enrolled.
• Pregnancy or lactation. As the risk of IFN-g in pregnancy is unknown, pregnant women will be excluded from the study.
• Any medical condition that, in the judgment of the investigator, would jeopardize the subject's safety following exposure to study drug

Sponsors & Collaborators

• Rockefeller University: lead

Study Sites (1)

Rockefeller University

New York, New York, 10065, United States

Location

MeSH Terms

Conditions

Psoriasis

Interventions

interferon gamma-1b

Condition Hierarchy (Ancestors)

Skin Diseases, Papulosquamous; Skin Diseases; Skin and Connective Tissue Diseases

Study Officials

• Michelle Lowes, MD

  The Rockefeller University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: early phase 1
• Allocation: NA
• Masking: NONE
• Purpose: BASIC SCIENCE
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 10, 2011
• First Posted: March 16, 2011
• Study Start: July 1, 2010
• Primary Completion: May 1, 2011
• Study Completion: May 1, 2011
• Last Updated: March 5, 2013

Record last verified: 2013-03

Locations

US (1)