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Completed Phase 2 Interventional Results available

Rilonacept for Deficiency of the Interleukin-1 Receptor Antagonist (DIRA)

ClinicalTrials.gov ID: NCT01801449

Public ClinicalTrials.gov record NCT01801449. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 10:11 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Pilot Open-Label Study of Rilonacept (Arcalyst) in the Deficiency of the Interleukin-1 Receptor Antagonist (DIRA)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Background: \- Deficiency of the IL-1 receptor antagonist (DIRA) is a condition that causes repeated episodes of inflammation. People with DIRA can have rashes, fever, and joint pain. Most treatments for DIRA are intended to control the immune system to stop these inflammations. There are drugs that can treat DIRA, but they have to be given daily as injections. Researchers want to try another drug, rilonacept, as a treatment for DIRA. It needs to be given only once a week. Rilonacept will be given to individuals who are at least 3 months old and who have DIRA. Objectives: \- To test the safety and effectiveness of rilonacept for children and adults with DIRA. Eligibility: \- Individuals at least 3 months old who have DIRA. Design: * Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. Other tests to study pain and movement will be given. Imaging studies such as bone density scans and x-rays may also be taken. * Participants will have a minimum of four to five study visits over 12 months. Those who are on different anti-inflammatory drugs (such as anakinra) will stop taking them before beginning the study visits. * Participants will have rilonacept injections weekly while on this study. The dose will be adjusted as needed to help treat the DIRA symptoms. Participants will keep a diary to monitor their symptoms and any side effects. * Treatment with rilonacept will be given for 1 year. Participants will have study visits to monitor the treatment. They will provide blood samples and have other tests at these study visits.

Study identification

NCT ID
NCT01801449
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
6 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
3 Months and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 11, 2013
Primary completion
Apr 27, 2016
Completion
Apr 27, 2016
Last update posted
Oct 15, 2017

2013 – 2016

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
National Institutes of Health Clinical Center, 9000 Rockville Pike Bethesda Maryland 20892

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01801449, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 15, 2017 · Synced Sep 5, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01801449 live on ClinicalTrials.gov.

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