Assessment of Macrophage Activation syndromE in STill's Disease (AMETHYST)

October 18, 2024 updated by: Swedish Orphan Biovitrum

Assessment of Macrophage Activation syndromE in STill's Disease: Retrospective Chart Analysis of Patient HistorY, Symptom Resolution and Treatment Characteristics

Assessment of Macrophage activation syndrome in STill's disease: retrospective chart analysis of patient History, Symptom resolution and Treatment characteristics

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is an observational, retrospective cohort study on the treatment utilization and outcomes of Macrophage Activation Syndrome (MAS) refractory to glucocorticoids (GC) in patients with Still's disease. The study will be conducted entirely through medical chart abstraction; all data will be taken from the patient's medical record, with no additional assessments.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
75

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Canada
      • Calgary, Canada
        • Swedish Orphan Biovitrum Research site
  • France
      • Paris, France
        • Swedish Orphan Biovitrum Research site
  • Germany
      • Heidelberg, Germany
        • Swedish Orphan Biovitrum Research site
  • Italy
      • Milan, Italy
        • Swedish Orphan Biovitrum Research site
      • Rome, Italy
        • Swedish Orphan Biovitrum Research site
  • Netherlands
      • Utrecht, Netherlands
        • Swedish Orphan Biovitrum Research site
  • Spain
      • Barcelona, Spain
        • Swedish Orphan Biovitrum Research site
  • United States
    • California
      • Los Angeles, California, United States, 90095
        • Swedish Orphan Biovitrum Research site
    • Georgia
      • Atlanta, Georgia, United States, 30329
        • Swedish Orphan Biovitrum Research site
    • Ohio
      • Cincinnati, Ohio, United States, 45229
        • Swedish Orphan Biovitrum Research site
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Swedish Orphan Biovitrum Research site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

The study population will include patients with Still's disease who were diagnosed with MAS that was refractory to GC treatment.

Description

Inclusion Criteria:

  • Age >6 months and ≤80 years at the beginning of the index MAS episode.
  • Diagnosis of Still's disease (sJIA (systemic Juvenile Idiopathic Arthritis) or AOSD (Adult Onset Stills Disease) diagnosis).
  • Diagnosis of MAS according to treating physician in the medical record.
  • Patients who have received at least 3 consecutive days of GC after diagnosis of MAS and/or are judged by the Investigator to be refractory to GC due to clinical worsening of patient's condition .
  • The onset of the index MAS episode occurred between 01 January 2012 and 30 September 2022.

Exclusion Criteria:

  • A diagnosis of primary Hemophagocytic Lymphohistiocytosis (HLH) prior to the beginning of the index MAS episode.
  • Confirmed malignancy prior to the beginning of the index MAS episode.
  • Patient treated with any investigational product as a part of clinical trial during the index MAS episode.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Overall survival
Time Frame: 1 year
The proportion of patients alive after 1-year of follow-up
1 year
Time to laboratory value normalization
Time Frame: From Index date up to 26 weeks
Time to normalization for the key laboratory values
From Index date up to 26 weeks
Time to Macrophage Activation Syndrome (MAS) laboratory remission
Time Frame: From Index date up to 26 weeks
Time to normalization for all key laboratory values
From Index date up to 26 weeks
Time to partial MAS laboratory remission
Time Frame: From Index date up to 26 weeks
Time to normalization for at least 3 key laboratory values
From Index date up to 26 weeks
Time to tapering of Glucocorticoids (GCs)
Time Frame: from index date to the last of 7 consecutive days
From index date to the last of 7 consecutive days receiving ≤1 mg/kg/day of prednisone (PDN).
from index date to the last of 7 consecutive days
Number of recurrent MAS episodes
Time Frame: through study completion
Occurring any time after the end of the data collection period for the index MAS episode
through study completion
Administration of organ support care
Time Frame: from the index date until either the end of hospitalization or 26 weeks, whichever occurs later
Proportion of patients receiving hemodialysis, assisted ventilation, cardiac support, or inotropic drugs
from the index date until either the end of hospitalization or 26 weeks, whichever occurs later
Characteristics of MAS treatment
Time Frame: for MAS episodes occurring during the data collection period
description of treatment patterns of MAS-related treatments for both index and recurrent MAS episodes.
for MAS episodes occurring during the data collection period
Clinical signs
Time Frame: At index date and 8 weeks after index date or at the earliest time this data becomes available between 8 and 12 weeks
No of MAS symptoms (Fever, Skin rash, Hemorrhagic manifestations, Evidence of CNS involvement) present
At index date and 8 weeks after index date or at the earliest time this data becomes available between 8 and 12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Time to hospital discharge
Time Frame: Up to 26 weeks
Defined as time from the index date to discharge from the hospital
Up to 26 weeks
Time to intensive care unit (ICU) discharge
Time Frame: Up to 26 weeks
For patients who are admitted to the ICU during the index MAS episode, this is defined as time from index date or ICU admission (whichever comes later) to ICU discharge
Up to 26 weeks
Duration of Clinical Response
Time Frame: Until week 26
defined as the time (in days) from the date of first documented MAS laboratory remission until the date of first documented occurrence of a new MAS episode as per investigator's assessment.
Until week 26

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Swedish Orphan Biovitrum

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Uwe Ullman, MD, Swedish Orphan Biovitrum AG Riehenring 182, 4058 Basel, Switzerland

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 27, 2023

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 26, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 26, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 9, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 7, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 8, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 21, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 18, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Sobi.Emapalumab-105

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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