The main aim of this study is to describe the characteristics of participants, check for number of hereditary angioedema (HAE) cases, their treatment and outcomes. Another aim is to check how the healthcare facilities were utilized for treatment. Participants' data will be taken from their medical records (charts), which were already collected as a part of their routine care between January 1, 2012, and January 1, 2022.
This is a non-interventional, retrospective, observational study of participants with Hereditary Angioedema with normal C1 esterase inhibitor (HAE) and Non-histaminergic Angioedema (NHAE) with normal C1-inhibitor function (nC1-INH) receiving various treatments between January 1, 2012, and January 1, 2022. The study will assess case numbers, treatments, outcomes, and healthcare resource utilization in the real-world setting. This study will enroll approximately 90 to 150 participants. Participants will be enrolled in the following two cohorts: * Participants with HAE nC1-INH * Participants with NHAE nC1-INH This study will have a retrospective data collection from January 1, 2012 to January 1, 2022 by using data from the participant medical charts that were already collected as part of routine care. This multi-center trial will be conducted in Canada. The overall time for data collection in this study will be approximately 10 years.
Study Type
OBSERVATIONAL
Enrollment
60
As this is an observational study, no intervention will be administered.
Alberta Health Services
Calgary, Alberta, Canada
Alberta Health Services
Edmonton, Alberta, Canada
Vancouver Allergy Clinic
Vancouver, British Columbia, Canada
University of Manitoba
Winnipeg, Manitoba, Canada
Number of Participants Diagnosed With HAE nC1-INH at Each Site
Time frame: Up to approximately 10 years
Number of Participants Diagnosed With NHAE nC1-INH at Each Site
Time frame: Up to approximately 10 years
Number of Participants Categorized by Type of Treatments Received by Participants
Time frame: Up to approximately 10 years
Average Dose for Each Type of Treatment Received by Participants
Time frame: Up to approximately 10 years
Average Duration of Treatment for Each Type of Treatment Received by Participants
Time frame: Up to approximately 10 years
Number of Participants Categorized by Type of Settings Where Treatment was Received
Categories of treatment settings include: home, hospital, physician office, emergency room visits (ER), and other.
Time frame: Up to approximately 10 years
Number of Participants Receiving Multiple Long-Term Prophylaxis (LTP) Therapies at Once
Number of participants will be reported by number of LTP therapies received at once.
Time frame: Up to approximately 10 years
Number of Participants Receiving Multiple LTP Therapies Categorized by Combination and Order of Treatments Received
Time frame: Up to approximately 10 years
Number of Attacks Occurring per Three-Months
Time frame: Before and after initiation of treatment up to end of the study (up to approximately 10 years)
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Hamilton Health Science Corporation
Hamilton, Ontario, Canada
CHU de Québec - Université Laval
Québec, Canada
Number of Participants Categorized by Severity of Attack per Three Months
Categories of severity are planned to include ER, use of rescue medication(s), (%) intubation, hospitalization, and laryngeal involvement.
Time frame: Before and after initiation of treatment up to end of the study (up to approximately 10 years)
Number of Participants by Body Sites Affected by Attacks per Three Months
Body sites will include face, lip, tongue, gastrointestinal (GI) system, larynx, extremities, and other.
Time frame: Before and after initiation of treatment up to end of the study (up to approximately 10 years)
Number of Participants with Symptoms of the Attack
Time frame: Up to approximately 10 years
Time from Treatment (On-demand Therapy) to Symptom Improvement/Resolution
Time frame: Up to approximately 10 years
Number of Primary Care Visits per Year Associated With Management of HAE nC1-INH or NHAE nC1-INH
Time frame: Up to approximately 10 years
Number of Walk-in Visits per Year Associated With Management of HAE nC1-INH or NHAE nC1-INH
Time frame: Up to approximately 10 years
Number of Unscheduled Physician Visits per Year Associated With Management of HAE nC1-INH or NHAE nC1-INH
Time frame: Up to approximately 10 years
Number of Emergency Room Visits per Year Associated With Management of HAE nC1-INH or NHAE nC1-INH
Time frame: Up to approximately 10 years
Number of Hospitalizations per Year Associated With Management of HAE nC1-INH or NHAE nC1-INH
Time frame: Up to approximately 10 years
Number of Intubations per Year Associated With Management of HAE nC1-INH or NHAE nC1-INH
Time frame: Up to approximately 10 years