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Study identifier: NCT05102019 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Efficacy of the COronary SInus Reducer in Patients With Refractory Angina II

Condition: Refractory Angina  ·  Sponsor: Shockwave Medical, Inc.

PhaseNA
Planned participants380
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

To demonstrate the safety and effectiveness of the Shockwave Reducer for treatment of patients with refractory angina pectoris treated with maximally tolerated guideline-directed medical therapy who demonstrate objective evidence of reversible myocardial ischemia in the distribution of the left coronary artery and who are deemed unsuitable for revascularization. A non-randomized single-arm registry will further assess the safety and effectiveness of the Shockwave Reducer in selected subjects with reversible myocardial ischemia in the distribution of the right coronary artery and who are deemed unsuitable for revascularization, subjects without documented obstructive coronary disease and abnormal coronary flow reserve (ANOCA), and subjects who cannot complete an exercise tolerance test due to lower limb amputation (above the ankle) or other physiologic condition with documented chronic mobility or balance issues that require the use of a walking aid.

This description comes directly from the study's public registry record.

Talk to the study team

COSIRA-II Study Team  ·  Fax: 1-888-887-8097  ·  connect.cosira2@shockwavemedical.com

Always discuss trial participation with your own doctor first.

Locations (95)

Mayo ClinicPhoenix, Arizona, United StatesRecruiting
HonorHealth Research InstituteScottsdale, Arizona, United StatesRecruiting
University of Arizona Sarver Heart CenterTucson, Arizona, United StatesRecruiting
Long Beach VA Medical CenterLong Beach, California, United StatesWithdrawn
Cedars-SinaiLos Angeles, California, United StatesRecruiting
UCSDSan Diego, California, United StatesRecruiting
Kaiser Permanente San FranciscoSan Francisco, California, United StatesRecruiting
UCSFSan Francisco, California, United StatesRecruiting
Los Robles Hospital and Medical CenterThousand Oaks, California, United StatesRecruiting
South Denver Cardiology AssociatesLittleton, Colorado, United StatesRecruiting
Yale UniversityNew Haven, Connecticut, United StatesRecruiting
MedStar Cardiovascular Research NetworkWashington D.C., District of Columbia, United StatesRecruiting

+ 83 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05102019