Skip to main content
Clinical Trials/NCT06992505
NCT06992505CompletedNot Applicable

Assessment of Macrophage Activation syndromE in STill's Disease: Retrospective Chart Analysis of Patient hIstory, Symptom Resolution and TreAtment Characteristics in Italy (AMETISTA)

Swedish Orphan Biovitrum2 sites in 1 country32 target enrollmentStarted: June 6, 2025Last updated:

Trial Snapshot

Phase
Not Applicable
Status
Completed
Sponsor
Enrollment
32
Locations
2
Primary Endpoint
Overall survival

Study Overview

Brief Summary

Assessment of macrophage activation syndrome in Still's disease:

retrospective chart analysis of patient history, symptom resolution and treatment characteristics in Italy

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. The study will be conducted in Italy.

Study Design

Study Type
Observational
Observational Model
Other
Time Perspective
Retrospective

Eligibility Criteria

Ages
6 Months to 80 Years (Child, Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age >6 months and ≤80 years at the beginning of the index MAS episode.
  • Diagnosis of Still's disease (sJIA or AOSD 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
  • According to local regulations, waivers of consent will be sought for study participants from the appropriate regulatory authorities and/or the independent ethics committee (IEC)/institutional review board (IRB). o For patients not covered by waivers of consent, signed, and dated informed consent provided by the patient, or the patient's legally authorized representative(s) for patients under the legal age (with patient assent, as applicable) or who have died, should be obtained before any study-related activities are undertaken.

Exclusion Criteria

  • A diagnosis of primary 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.

Outcomes

Primary Outcomes

Overall survival

Time Frame: from 2012 to 2022 (data abdstraction period)

defined as the survival time of patients from the index date

Time to laboratory value normalization

Time Frame: up to 24 weeks

defined as the time to normalization for key laboratory values

Time to MAS laboratory remission

Time Frame: up to 24 weeks

defined as the time from index date to the last date of normalization of key laboratory assessments

Time to partial MAS laboratory remission

Time Frame: up to 24 weeks

defined as the time from index date to the last date of normalization of at least 3 of the key laboratory assessments

Time to tapering of GCs

Time Frame: from index date to the last of 7 consecutive days receiving ≤1 mg/kg/day of prednisone (PDN) equivalent dose

defined as the time from index date to the last of 7 consecutive days receiving ≤1 mg/kg/day of prednisone (PDN) equivalent dose

Number of recurrent MAS episodes

Time Frame: from hospital discharge or 26-weeks from the index date, whichever occurs later, until the end of study data collection]

defined as the number of MAS episodes occurring any time after the end of the data collection period for the index MAS episode (hospital discharge or 26-weeks from the index date, whichever occurs later) until the end of study data collection

Administration of organ support care

Time Frame: from the index date until either the hospital discharge or 26 weeks, whichever occurs later

defined as the proportion of patients receiving hemodialysis, assisted ventilation, cardiac support, or inotropic drugs at any time from the index date until either the hospital discharge or 26 weeks, whichever occurs later

Characteristics of MAS treatment

Time Frame: up to 24 weeks

Concomitant medications

Clinical signs

Time Frame: at index date and 8 weeks after index date (allowed time window 6 to 12 weeks)

Patients experiencing MAS symptoms if present (documentation in free text)

Secondary Outcomes

  • Time to hospital discharge(up to 24 weeks)
  • Time to intensive care unit (ICU) discharge(up to 24 weeks)
  • Normalization of key laboratory values(Week 8 after index date (allowed time window 6 to 12 weeks))
  • MAS laboratory remission(at Week 8 after index date (allowed time window 6 to 12 weeks).)
  • Partial MAS laboratory remission(at Week 8 after index date (allowed time window 6 to 12 weeks))
  • Duration of Clinical Response(up to 24 weeks)

Investigators

Sponsor
Swedish Orphan Biovitrum
Sponsor Class
Industry
Responsible Party
Sponsor

Study Sites (2)

Loading locations...

Similar Trials