About the Study
What is the Oasis Study?
HAE is a rare, potentially life-threatening disease that causes painful swelling attacks, mainly in the hands, feet, face, throat, and stomach area. Swelling in the airway can restrict breathing and be fatal. Attacks can occur without warning and last up to several days. Most cases of HAE are caused by a genetic mutation that affects production of a protein called C1-inhibitor. HAE affects approximately 20,000 people in the U.S. and Europe. There are medicines available to treat and prevent HAE attacks. Researchers are currently looking for new treatment options that might work better or help improve people’s quality of life.
About Oasis Plus
This study will help researchers learn if the study drug is safe and effective for people with HAE when given over a long-term period. Participants in Oasis Plus are either:
- Switching over from a different prophylaxis OR
- Continuing on from another donidalorsen study
Who can participate in the Oasis Plus study?
You may qualify for the study if you meet the following requirements:
- You are 12 years of age or older, and diagnosed with HAE Type 1 or Type 2
- You have been on a stable dose of prophylactic medication such as lanadelumab, berotralstat, or a C1-esterase inhibitor to manage HAE for at least 12 weeks (and are looking to switch) OR
- You have already participated in the Oasis Phase 3 study for HAE
- Other requirements will apply.
What can participants in the Oasis Plus study expect?
- The study will last up to 3 years.
- There is no placebo – everyone enrolled receives active study drug.
- Participants will receive an injection of the study drug every 4 weeks or 8 weeks depending on symptoms.
- Study-related health assessments will be provided at no cost. Participants will be reimbursed for costs associated with study visits (e.g., air travel, mileage, parking).