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Hereditary angioedema (HAE) is a rare condition. It causes sudden swelling under the skin and inside the body, like in the belly, throat, or genitals. This swelling happens because of a temporary leak in blood vessels. HAE is classified based on the amount of a protein in the blood called C1 inhibitor (C1-INH): HAE with normal C1-INH levels and HAE with limited or insufficient C1-INH levels (C1-INH deficiency); HAE with C1-INH deficiency can be divided into Type1, with low levels of C1-INH, and Type 2, in which the protein is there, but does not work properly. This study will look at people with HAE Type1 or Type2.
The main aim of this study is to describe the diagnosis and management of people with HAE Type1 or HAE Type2 in Egypt. Other aims are to learn more about people with HAE Type1 or Type2, including, but not limited to, other conditions they may have, family history, impact of HAE on daily life, if treatment is stopped and the reasons.
During the study, information from already existing data in a participant's medical record will be reviewed and new data will be collected during routine visits of a participant to the study clinic.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Retrospective Phase | All participants who were diagnosed with HAE-C1INH type1 or type2 from January 2015 to August 2025; retrospective clinical data will be extracted for 5 months exclusively from patients' medical charts, and no direct patient interaction will occur. |
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| Prospective Phase | All participants with any newly diagnosed or admitted or follow-up HAE-C1INH type1 or type2; prospective clinical data will be actively collected over 12 months through routine visits and electronic data capture (EDC) entries. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| No intervention | Other | This is a non-interventional study. |
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| Measure | Description | Time Frame |
|---|---|---|
| Age of Participants at Diagnosis (in years) of HAE-C1INH Type1 or Type2 | At Day 1 | |
| Percentage of Participants With HAE-C1INH Type1 or Type2 | At Day 1 | |
| Number and Type of First Symptom at Initial Manifestation | Up to 5 months retrospectively, up to 12 months prospectively | |
| Number of Participants With First Symptom at Initial Manifestation | Up to 5 months retrospectively, up to 12 months prospectively | |
| Duration of First Symptom at Initial Manifestation | Up to 5 months retrospectively, up to 12 months prospectively | |
| Number and Type of Confirmed Diagnosis of HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively | |
| Number of Participants With Confirmed Diagnosis of HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively | |
| Duration of Confirmed Diagnosis of HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively | |
| Number of Participants with Recorded Diagnostic Test Results for C1-INH Antigenic Level, Serum Complement Component 4 (C4) Level, and C1-INH Functional Level | Up to 5 months retrospectively, up to 12 months prospectively |
| Measure | Description | Time Frame |
|---|---|---|
| Number of Participants With Clinical Symptoms of HAE-C1INH Type1 or Type2 at Last Clinical Appointment | Up to 5 months retrospectively, up to 12 months prospectively | |
| Number of Participants With Clinical Symptom Types of HAE-C1INH Type1 or Type2 at Last Clinical Appointment |
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Inclusion Criteria: Retrospective Phase:
Inclusion Criteria: Prospective Phase:
Exclusion Criteria: (For both retrospective and prospective phases):
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Adult and pediatric participants with HAE-C1INH type1 or type2, treated within a routine clinical setting in Egypt.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Takeda Contact | Contact | +1-877-825-3327 | medinfoUS@takeda.com |
| Name | Affiliation | Role |
|---|---|---|
| Study Director | Takeda | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mansoura university hospital | Al Mansurah | 35511 | Egypt |
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| Label | URL |
|---|---|
| Click here for more information about this trial in easy-to-understand language. | View source |
| Click here to ask Takeda's chatbot for comprehensive and easy-to-understand information about clinical trials - even across products and indications - in your local language. | View source |
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Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.
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IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/. For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.
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| ID | Term |
|---|---|
| D054179 | Angioedemas, Hereditary |
| ID | Term |
|---|---|
| D000799 | Angioedema |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
| D000081208 | Hereditary Complement Deficiency Diseases |
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| Number of Participants Receiving On-demand (OD), Short-term prophylaxis (STP), and Multiple Long-Term Prophylaxis (LTP) Therapies | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants who Received Prescriptions for Therapeutic Management With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Treatment Options Used for the Therapeutic Management of Participants With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Routes of Administration Used for the Therapeutic Management of Participants With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Dose Regimens Used for the Therapeutic Management of Participants With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants Switching Treatment for the Therapeutic Management of Participants With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Frequency of Treatment Changes for the Therapeutic Management of Participants With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Reason for Switching Treatment for the Therapeutic Management of Participants With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Up to 5 months retrospectively, up to 12 months prospectively |
| Duration of Clinical Symptoms of HAE-C1INH Type1 or Type2 at Last Clinical Appointment | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Known Triggers at Diagnosis | Triggers include stress, trauma, infection, contraception, menstruation, medication, food, burns, surgical procedures, and others. | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With History of Upper Airway Edema | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With History of Abdominal Surgery due to HAE Misdiagnosis | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With HAE-related Death | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Response to Standard Allergy Medications | Standard allergy medications (e.g. antihistamines, glucocorticoids, and epinephrine) that will be reported based on the symptom improvement, time to relief, reduction in symptom severity, and need for additional interventions. | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Presence of Comorbidities | Up to 5 months retrospectively, up to 12 months prospectively |
| Average Number of HAE Attacks per Month | Up to 5 months retrospectively, up to 12 months prospectively |
| Average Number of Attacks Requiring Acute Treatment per Month | Up to 5 months retrospectively, up to 12 months prospectively |
| Average Number of Attacks Requiring Emergency Care or Hospitalization per Month | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Severity of HAE Attack per Each Attack | Number of participants with severity of HAE attack (mild, moderate, severe as reported or documented) per each attack. | Up to 5 months retrospectively, up to 12 months prospectively |
| Time of HAE Attack(s) at Each Onset During Follow-Up Visits or Date of Last Recorded HAE Attack | Up to 5 months retrospectively, up to 12 months prospectively |
| Duration of Symptoms for Each HAE Attack Onset During Subsequent Follow-Up Visits | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of HAE Attacks per Month | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants Categorized by HAE Attack Characteristics | HAE attack characteristics will include most common attack site(s) (e.g., abdominal, cutaneous, laryngeal), number of recurrent abdominal attacks, site of attack per each attack onset for each subsequent follow-up visit, and symptoms experienced per attack (e.g., pain, swelling, nausea). | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Prodromal Symptom | Prodromal symptoms before attacks such as general discomfort, tiredness, irritability, skin symptoms, rash, and paresthesia per each attack onset for each subsequent follow-up visit will be reported. | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With any Known Triggers Identified by the Participant as Related to the Onset of the Attack per Each Attack Onset for Each Subsequent Follow-up Visits | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With On-demand Treatment Medication for Each HAE Attack | Up to 5 months retrospectively, up to 12 months prospectively |
| Number and Type of Hospitalizations due to HAE Attacks | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Life-threatening Attacks | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants (Family Members) Diagnosed With HAE-C1INH Type1 or Type2 | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Degree of Relation (Parent, Sibling, Child) to Diagnosed Family Members | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Presence of Laryngeal or Life-threatening Attacks in Relatives | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Rate of Testing and of Diagnosis Among Tested Family Members | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With History of HAE-related Deaths in the Family | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participant's Relatives who Underwent Clinical and/or Lab Assessment for HAE diagnosis | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Clinical Assessment for HAE Diagnosis With Symptoms Description for the Patient, their Descendants, or Relatives | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Laboratory Testing for the Participant, Their Descendants, or Relatives | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Follow-up Visits Routinely Performed (Average per Year) During the Retrospective and Prospective Phase | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants Who Missed Days at Work or School and Social Life due to HAE Attack | Up to 5 months retrospectively, up to 12 months prospectively |
| Number of Participants With Treatment Discontinuation | Participants who discontinued the treatment due to reasons such as lack of efficacy, safety concerns, compliance issues, or others. | Up to 5 months retrospectively, up to 12 months prospectively |
| Alexandria university_Clinical Research Center | Alexandria | 21526 | Egypt |
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| Ain shams university hospital_Pediatrics | Cairo | 11535 | Egypt |
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| Ain shams university hospital | Cairo | 11535 | Egypt |
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| Cairo university hospital_Pediatrics | Giza | 11632 | Egypt |
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| Cairo university hospital | Giza | 11632 | Egypt |
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| Zagazig university hospital | Zagazig | 44511 | Egypt |
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| D000081207 | Primary Immunodeficiency Diseases |
| D030342 | Genetic Diseases, Inborn |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D014581 | Urticaria |
| D017445 | Skin Diseases, Vascular |
| D012871 | Skin Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D006969 | Hypersensitivity, Immediate |
| D006967 | Hypersensitivity |
| D007154 | Immune System Diseases |
| D007153 | Immunologic Deficiency Syndromes |