Safety Study in Subjects ≥ 12 Years of Age With Hereditary Angioedema Switching to Garadacimab
A Phase 4 Open-label Study to Evaluate the Safety After Switching to CSL312 (Garadacimab) From Current Prophylactic HAE Treatment in Subjects With HAE ≥ 12 Years of Age
CSL Behring
30 participants
Mar 19, 2025
INTERVENTIONAL
Conditions
Summary
This study is designed to evaluate the safety after switching to garadacimab from another prophylactic hereditary angioedema (HAE) treatment (marketed kallikrein \[KK\] inhibitor or plasma-derived C1-esterase inhibitor \[pdC1INH\]prophylactic) when administered once monthly for approximately 3 months in participants aged greater than or equal to (\>=) 12 years with HAE.
Eligibility
Inclusion Criteria8
- • Aged \>= 12 years at the time of providing written informed consent / assent.
- • Have a history of response to on-demand HAE treatment for the treatment of acute HAE attacks.
- • Documented laboratory diagnosis in medical records of C1-esterase inhibitor hereditary angioedema (HAE-C1INH) type 1 or type 2:
- ◦ Documented clinical history consistent with HAE (subcutaneous or mucosal, nonpruritic swelling episodes without accompanying urticaria),
- ◦ C1-esterase inhibitor (C1INH) antigen concentration or functional activity less than (\<) 50% of normal as documented in the participant's medical record, or
- ◦ C4-antigen concentration below the lower limit of the reference range as documented in the participant's medical record.
- For HAE-nC1INH: Documented clinical history consistent with HAE (subcutaneous or mucosal, nonpruritic swelling episodes without accompanying urticaria); an HAE-associated FXII gene mutation (eg, FXII point mutation Thr328Lys or Thr328Arg, or deletion of 72 base pairs \[c.971\_1018 + 24del72\], or duplication of 18 base pairs \[c.892-909dup\]), as documented in the participant's medical record, OR an HAE-associated plasminogen gene mutation (PLG) gene mutation (eg, PLG point mutation Lys330Glu), as documented in the participant's medical record; C1INH antigen concentration or functional activity 70 to 120% of the normal level, as documented in the participant's medical record.
- • Use of lanadelumab, berotralstat, or pdC1INH for the prophylactic treatment of HAE and be on a stable (consistent) dose / regimen of such medication for at least 3 months prior to Screening.
Exclusion Criteria3
- • Concomitant diagnosis of another form of angioedema, such as idiopathic or acquired angioedema or recurrent angioedema associated with urticaria.
- • Use of androgens, antifibrinolytics, or investigational products (other than garadacimab) for routine prophylaxis against HAE attacks.
- • Known or suspected hypersensitivity to monoclonal antibody therapy or hypersensitivity to the active substance (garadacimab) or to any of the excipients.
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Interventions
Participants will receive a loading dose of garadacimab, followed by once monthly garadacimab administration for 2 months. Garadacimab will be given as a subcutaneous injection. The timing for the administration of the loading dose (first administration of garadacimab) is determined by the dosing schedule of the current HAE prophylactic treatment. No washout necessary.
Locations(11)
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NCT06806657