The main aim of this study is to compare the HAE attacks (both total and those requiring on-demand treatment) in the 12 months before and up to 24 months after initiation of treatment with lanadelumab. This study is conducted in the United Kingdom where participants were treated or about to be treated with landelumab according to their routine practice at hospitals. Data will be directly collected from participants via study diaries, questionnaires, their medical records, and study doctors treating them. Participants will be contacted every 3 months during study participation (via phone).
Study Type
OBSERVATIONAL
Enrollment
50
As it is an observational study, no intervention is administered in this study.
Barts Health NHS Trust
London, England, United Kingdom
Number of Hereditary Angioedema (HAE) Attacks
Number of HAE attacks (both total \[including untreated\] and those requiring on-demand treatment) will be estimated across the pre- and post-treatment periods (that is, 12 months before and up to 24 months after initiation of treatment with lanadelumab).
Time frame: Up to approximately 3 years
Number of Participants Categorized by Their Demographic Characteristics
Demographic characteristics will include age, sex, and ethnic group at index.
Time frame: At index (lanadelumab treatment initiation day)
Number of Participants Categorized by Their Clinical Characteristics
Clinical characteristics will include categories of participant-reported age at onset of symptoms, age at diagnosis of HAE, duration of time from onset to diagnosis (i.e., the diagnostic delay), body mass index (BMI) (at index); comorbidities (pre and post index), history of laryngeal attacks (pre index), type of HAE (type I and II), and triggers for HAE symptoms onset (at index and post index). Index is defined as the lanadelumab treatment initiation day.
Time frame: Up to approximately 3 years
Number of Participants Categorized by Their Treatment Patterns
Treatment patterns will include categories of the summary of participant-reported duration of lanadelumab treatment, treatment dose given to participants, and participant with switching patterns with lanadelumab on occurence of HAE attacks.
Time frame: At and after index (lanadelumab treatment initiation day plus approximately 2 years)
Number of Participants Categorized by Their Patterns of Prophylactic Treatment
Patterns of prophylactic treatment will include categories of the summary of participant-reported use of brand and drug name, duration of treatment, dose of the treatment within same class of prophylactic treatments.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Time frame: Up to approximately 3 years
Compare the Number of Participants Categorized by Their Clinical Features of HAE Attacks Before and After Initiation of Lanadelumab
To compare the number clinical features of HAE attacks before and after initiation of lanadelumab. Clinical features of HAE attacks will include categories of summary of participant-reported time of attack, duration of attack, location (e.g., trunk, extremities, and larynx) of HAE attack, the severity (Grade 1 \[Mild\], Grade 2 \[Moderate\], and Grade 3 \[Severe\]) of HAE attack, and hospitalization due to the HAE attack.
Time frame: Up to approximately 3 years
Number of Self-Reported HAE Attacks
Time frame: Up to approximately 3 years
Number of Participants Categorized by Their Clinical Features of Self-Reported HAE Attacks
Clinical features of self-reported HAE attacks will include categories of summary of participant-reported time of attack, duration of attack, location (e.g., trunk, extremities, and larynx) of HAE attack, the severity (Grade 1 \[Mild\], Grade 2 \[Moderate\], and Grade 3 \[Severe\]) of HAE attack, symptoms of HAE attack (e.g., tiredness, abdominal pain, and abdominal swelling), and identified or suspected trigger(s) for the attack (e.g., contact with chemicals, drugs, or foods).
Time frame: Up to approximately 3 years
European Quality of Life 5 Dimensions 3-levels (EQ-5D-3L) Questionnaire Total Score
The EQ-5D-5L questionnaire will be used to record impact of HAE on participant's quality-of-life (QoL). The EQ-5D-5L is a descriptive system of Health-Related Quality-of-Life (HRQoL) states consisting of 5 dimensions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression), each of which can take 1 of 5 responses. The responses record 5 levels of severity \[no problems, slight problems, moderate problems, severe problems, and extreme problems\] within a particular dimension. The scores will be the sum of scores from each dimension and can range from 5 (no problems) to 25 (extreme problems). Higher score indicated a worsening health condition.
Time frame: Up to approximately 2 years
EQ-5D-3L Visual Analogue Scale (VAS) Score
The EQ-5D-3L VAS records the participant's self-rated health on a vertical visual analogue scale, where the endpoints are labelled 'The best health you can imagine' and 'The worst health you can imagine'. The VAS is used as a quantitative measure of health outcome that reflect the participant's own judgement score, with a score of 0 as the worst and 100 as the best possible health.
Time frame: Up to approximately 2 years
Angioedema Quality of Life (AE-QoL) Total Scores
AE-QoL is a self-administered instrument designed to measure HRQoL in adult participants with recurrent angioedema. The AE-QoL consists of 17 disease-specific quality-of-life items, to produce a total AE-QoL score and 4 domain scores (functioning, fatigue/mood, fears/shame, and food, Each of the 17 items has a five-point response scale ranging from 1 (Never) to 5 (Very Often).
Time frame: Up to approximately 2 years
Angioedema Quality of Life (AE-QoL) Domain Scores
AE-QoL is a self-administered instrument designed to measure HRQoL in adult participants with recurrent angioedema. The AE-QoL consists of 17 disease-specific quality-of-life items, to produce a total AE-QoL score and 4 domain scores (functioning, fatigue/mood, fears/shame, and food, Each of the 17 items has a five-point response scale ranging from 1 (Never) to 5 (Very Often).
Time frame: Up to approximately 2 years
Number of Participants With HAE-related Health Care Resource Utilization (HCRU)
Healthcare resources used during medical encounters include in and out-patient visits to physicians, hospital admissions, in and out-patient emergency care, and in and out-patient clinical examinations and tests.
Time frame: Up to approximately 3 years
Angioedema Control Test (AECT) Total Score
The AECT is used to assess participants with recurrent angioedema. The test uses a questionnaire with 4 items, each of which has 5 options and is used to measure the participant's current disease control. HAE control score will be recorded with 5 levels of answers \[1=very often, 2=often, 3=sometimes, 4=seldom, 5=not at all\] to the following questions: 1) In the last 3 months, how often have you had angioedema? 2) In the last 3 months, how much has your QoL been affected by angioedema? 3) In the last 3 months, how much has the unpredictability of your angioedema bothered you? 4) In the last 3 months, how well has your angioedema been controlled by your therapy?
Time frame: Up to approximately 2 years
Angioedema Control Test (AECT) Domain Score
The AECT is used to assess participants with recurrent angioedema. The test uses a questionnaire with 4 items, each of which has 5 options and is used to measure the participant's current disease control. HAE control score will be recorded with 5 levels of answers \[1=very often, 2=often, 3=sometimes, 4=seldom, 5=not at all\] to the following questions: 1) In the last 3 months, how often have you had angioedema? 2) In the last 3 months, how much has your QoL been affected by angioedema? 3) In the last 3 months, how much has the unpredictability of your angioedema bothered you? 4) In the last 3 months, how well has your angioedema been controlled by your therapy?
Time frame: Up to approximately 2 years
Treatment Satisfaction Questionnaire for Medication (TSQM) Total Score
The TSQM comprises 14 items across four domains focusing on effectiveness (three items), side effects (five items), convenience (three items), and global satisfaction (three items) of the medication over the previous 2-3 weeks, or since the patient's last use. With the exception of item 4 (presence of side effects; yes or no), all items have five or seven responses, scored from one (least satisfied) to five or seven (most satisfied). The 7-item scales had a non-neutral midpoint, such that there were more positive response options than negative response options, to allow for precise information to be obtained at the upper end of the score distribution. Item scores are summed to give four domain scores, which are in turn transformed to a scale of 0-100.
Time frame: Up to approximately 2 years
Treatment Satisfaction Questionnaire for Medication (TSQM) Domain Score
The TSQM comprises 14 items across four domains focusing on effectiveness (three items), side effects (five items), convenience (three items), and global satisfaction (three items) of the medication over the previous 2-3 weeks, or since the patient's last use. With the exception of item 4 (presence of side effects; yes or no), all items have five or seven responses, scored from one (least satisfied) to five or seven (most satisfied). The 7-item scales had a non-neutral midpoint, such that there were more positive response options than negative response options, to allow for precise information to be obtained at the upper end of the score distribution. Item scores are summed to give four domain scores, which are in turn transformed to a scale of 0-100.
Time frame: Up to approximately 2 years