Status and phase
Conditions
Treatments
About
Background:
The immune system is the body's defense against bacteria and other harmful invaders. In people with systemic lupus erythematosus (SLE), the immune system becomes overactive and attacks healthy cells by mistake. Many people use glucocorticoids (GCs) to treat their SLE. GCs can calm down an overactive immune system by changing how the body reads genes. But GCs have side effects that can increase over time. Researchers want to learn more about how GCs work. This may help to develop new and better drugs for treating SLE without the side effects GCs have.
Objective:
To better understand how GCs affect the immune system in people with SLE.
Eligibility:
People age 18-80 with SLE.
Design:
Participants will be screened with a physical exam. They will have a health and medical history. They will have blood and urine tests. They will have an electrocardiogram to measure heart activity. For this, sticky pads are put on their chest, arms, and legs.
Participants will have a methylprednisolone infusion for about 30 minutes. It will be given through a needle in a vein.
Blood will be collected immediately before, 2 hours after, and 4 hours after the start of the infusion. Blood pressure and heart activity will be monitored. Participants will repeat some of the screening tests.
Participants will be contacted twice in the week after the infusion visit. They will discuss any health problems they are having.
Full description
Study Design:
This is a study of the acute effects of glucocorticoids on the immune system of patients with SLE. Participants will undergo baseline blood collection prior to receiving a single intravenous (IV) dose of methylprednisolone sodium succinate. Participants will be randomized into 1 of 2 dose groups: 1 mg/kg or 250 mg. Blood will be collected again at 2 and 4 hours after the methylprednisolone infusion. Individual participation requires 2 visits to the NIH CC and 2 follow-up phone calls. Total length of individual subject participation including screening is 1-12 weeks. Blood samples will be processed for isolation of hematopoietic cell sub-populations (eg, neutrophils, B cells, plasmacytoid dendritic cells, CD4+ T cells, CD8+ T cells, monocytes, and natural killer cells). Laboratory studies will be performed on the purified cells, with the goal of understanding the human response to glucocorticoids in vivo at the level of circulating cell populations (eg, flow cytometry, mass cytometry), RNA (eg, RNA sequencing [RNA-seq], small-RNA-seq, real-time polymerase chain reaction [PCR]), DNA (eg, chromatin immunoprecipitation sequencing [ChIP-seq], methylation analysis, DNA sequencing, genotyping), and protein (eg, flow cytometry, mass spectrometry). At each time point, serum methylprednisolone levels will be measured.
Study Agent/ Intervention Description:
A single IV infusion of methylprednisolone sodium succinate at either 1 mg/kg or 250 mg.
Primary Objective:
To understand the cellular and molecular response to glucocorticoids in individuals with SLE.
Glucocorticoid Genomics in SLE
Secondary Objectives:
Primary Endpoint:
A list of human protein-coding genes and non-coding RNAs that are differentially expressed in response to glucocorticoids in patients with SLE, for each of the studied cell types and doses.
Secondary Endpoints:
Enrollment
Sex
Ages
Volunteers
Inclusion and exclusion criteria
INCLUSION CRITERIA:
B. If receiving glucocorticoid therapy experiencing a lupus flare at the time of the screening visit, then potential participants must be on a daily prednisone or prednisone-equivalent dose less than or equal to 15mg/day. A glucocorticoid taper will not be performed.
EXCLUSION CRITERIA:
Laboratory evaluations that will be used to establish eligibility are listed in sections 6 and 7, below. For exclusion criteria that involve previously established diagnoses, such as active malignancy, osteoporosis, or diabetes mellitus, any previously obtained diagnostic studies will be considered, but diagnostic testing for the sole purpose of establishing eligibility will not be performed.
Primary purpose
Allocation
Interventional model
Masking
47 participants in 2 patient groups
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal