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A Phase 3 Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of ISIS 721744 in Patients with Hereditary Angioedema (HAE)

A Phase 3 Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of ISIS 721744 in Patients with Hereditary Angioedema (HAE) - -

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-002571-19-IT
Enrollment
84
Registered
2022-01-27
Start date
2022-04-05
Completion date
Unknown
Last updated
2024-10-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hereditary Angioedema (HAE) MedDRA version: 23.1 Level: PT Classification code 10019860 Term: Hereditary angioedema System Organ Class: 10010331 - Congenital, familial and genetic disorders

Interventions

Product Name: ISIS 721744 Product Code: [ISIS 721744] Pharmaceutical Form: Solution for injection/infusion INN or Proposed INN: Donidalorsen CAS Number: 2304701-45-7 Current Sponsor code: ISIS 721744

Sponsors

IONIS PHARMACEUTICALS, INC.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients must be aged >= 12 years at the time of informed consent, and, as applicable, assent Patients must have a documented diagnosis of HAE-1/HAE-2 based upon ALL of the following: a. Documented clinical history consistent with HAE (subcutaneous [SC] or mucosal, non-pruritic swelling episodes without accompanying urticaria) b. Diagnostic testing results that confirm HAE-1/HAE-2: C1-INH functional level =65 years) yes F.1.3.1 Number of subjects for this age range 5

Exclusion criteria

Exclusion criteria: • Anticipated use of short-term prophylaxis for angioedema attacks for a pre-planned procedure during the Screening, Treatment or Post- Treatment Periods • Concurrent diagnosis of any other type of recurrent angioedema, including acquired, idiopathic angioedema or HAE with normal C1-INH (also known as HAE Type III) • Anticipated change in the use of concurrent androgen prophylaxis used to treat angioedema attacks • Participation in a prior ISIS 721744 study • Exposure to any of the following medications: a. Angiotensin-converting enzyme (ACE) inhibitors or any estrogencontaining medications with systemic absorption (such as oral contraceptive or hormonal replacement therapy) within 4 weeks prior to Screening b. Chronic prophylaxis with Takhzyro, Haegarda, Cinryze or Orladeyo within 5 half-lives prior to Screening (i.e., Takhzyro within 10 weeks prior to Screening, Haegarda/Cinryze within 2 weeks prior to screening, Orladeyo within 3 weeks prior to Screening) c. Oligonucleotides (including small interfering ribonucleic acid) within 4 months of Screening if single dose received, or within 12 months of Screening if multiple doses received. This exclusion does not apply to vaccines

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of the study is to evaluate the clinical efficacy of ISIS 721744 in patients with HAE.;Secondary Objective: Evaluate the effects of ISIS 721744 on the quality and pattern of HAE attacks and their impact on Quality of Life.;Primary end point(s): The primary endpoint is the time-normalized number of Investigator-confirmed HAE attacks (per month) from Week 1 to Week 25 compared to placebo.;Timepoint(s) of evaluation of this end point: The time-normalized number of Investigator-confirmed HAE attacks (per month) from W5 to W25 compared to placebo • The percentage of Investigator-confirmed HAE attack-free patients from W5 to W25 compared to placebo • The time-normalized number of moderate or severe Investigatorconfirmed HAE attacks (per month) from W5 to W25 compared to placebo • The number of patients with a clinical response defined as a = 50%, = 70%, or = 90% reduction from Baseline (i.e., screening rate) in Investigator-confirmed HAE attack rate between W5 to W25 compared to placebo • Percent of patients who are well-controlled based on the AECT at W25 • Change in AE-QoL questionnaire total score at W25 • The number of Investigator-confirmed HAE attacks requiring acute therapy from W5 to W25 compared to placebo.

Countries

Belgium, Bulgaria, Canada, Denmark, France, Germany, Israel, Italy, Netherlands, Poland, Spain, United Kingdom, United States

Contacts

Public ContactIonis Clinical Trial Information

Ionis Pharmaceuticals

ClinicalTrials@ionisph.com17606032504

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026