Assessment of Macrophage Activation syndromE in STill's Disease
AMETHYST
1 other identifier
observational
75
7 countries
11
Brief Summary
Assessment of Macrophage activation syndrome in STill's disease: retrospective chart analysis of patient History, Symptom resolution and Treatment characteristics
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Sep 2023
Shorter than P25 for all trials
11 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 27, 2023
CompletedFirst Submitted
Initial submission to the registry
April 9, 2024
CompletedFirst Posted
Study publicly available on registry
May 8, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 26, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
September 26, 2024
CompletedOctober 21, 2024
October 1, 2024
1 year
April 9, 2024
October 18, 2024
Conditions
Outcome Measures
Primary Outcomes (9)
Overall survival
The proportion of patients alive after 1-year of follow-up
1 year
Time to laboratory value normalization
Time to normalization for the key laboratory values
From Index date up to 26 weeks
Time to Macrophage Activation Syndrome (MAS) laboratory remission
Time to normalization for all key laboratory values
From Index date up to 26 weeks
Time to partial MAS laboratory remission
Time to normalization for at least 3 key laboratory values
From Index date up to 26 weeks
Time to tapering of Glucocorticoids (GCs)
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
Occurring any time after the end of the data collection period for the index MAS episode
through study completion
Administration of organ support care
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
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
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 Outcomes (3)
Time to hospital discharge
Up to 26 weeks
Time to intensive care unit (ICU) discharge
Up to 26 weeks
Duration of Clinical Response
Until week 26
Interventions
Retrospective Chart Review
Eligibility Criteria
The study population will include patients with Still's disease who were diagnosed with MAS that was refractory to GC treatment.
You may qualify if:
- 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.
You may not qualify if:
- 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.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (11)
Swedish Orphan Biovitrum Research Site
Los Angeles, California, 90095, United States
Swedish Orphan Biovitrum Research Site
Atlanta, Georgia, 30329, United States
Swedish Orphan Biovitrum Research Site
Cincinnati, Ohio, 45229, United States
Swedish Orphan Biovitrum Research Site
Philadelphia, Pennsylvania, 19104, United States
Swedish Orphan Biovitrum Research Site
Calgary, Canada
Swedish Orphan Biovitrum Research Site
Paris, France
Swedish Orphan Biovitrum Research Site
Heidelberg, Germany
Swedish Orphan Biovitrum Research Site
Milan, Italy
Swedish Orphan Biovitrum Research Site
Rome, Italy
Swedish Orphan Biovitrum Research Site
Utrecht, Netherlands
Swedish Orphan Biovitrum Research Site
Barcelona, Spain
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Uwe Ullman, MD
Swedish Orphan Biovitrum AG Riehenring 182, 4058 Basel, Switzerland
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 9, 2024
First Posted
May 8, 2024
Study Start
September 27, 2023
Primary Completion
September 26, 2024
Study Completion
September 26, 2024
Last Updated
October 21, 2024
Record last verified: 2024-10