Olpasiran Trials of Cardiovascular Events and Lipoprotein(a) Reduction - Coronary Computed Tomography Angiography Trial
OCEAN(a)-CCTA
A Double-blind, Randomized, Placebo-controlled, Multi-center Study Evaluating the Safety, Tolerability, and Effect of Olpasiran on Coronary Artery Plaque Burden Assessed by Coronary Computed Tomography Angiography in Participants With Stable Atherosclerotic Cardiovascular Disease and Elevated Lipoprotein(a)
1 other identifier
interventional
406
11 countries
40
Brief Summary
The primary objective of this trial is to evaluate the effect of olpasiran, compared to placebo, on non-calcified plaque (NCP) volume as measured by Coronary Computed Tomography Angiography (CCTA).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Mar 2026
40 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 17, 2025
CompletedFirst Posted
Study publicly available on registry
December 19, 2025
CompletedStudy Start
First participant enrolled
March 23, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 15, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 15, 2028
April 16, 2026
April 1, 2026
2.2 years
December 17, 2025
April 15, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in NCP Volume from Baseline to Week 72
Baseline to Week 72
Secondary Outcomes (4)
Change in Low Attenuation Plaque Volume from Baseline to Week 72
Baseline to Week 72
Change in Total Plaque Volume from Baseline to Week 72
Baseline to Week 72
Change in Calcified Plaque Volume from Baseline to Week 72
Baseline to Week 72
Number of Participants with Treatment-emergent Adverse Events (TEAEs)
Up to Week 74
Study Arms (2)
Olpasiran
EXPERIMENTALParticipants will receive olpasiran subcutaneously (SC) once every 12 weeks (Q12W).
Placebo
PLACEBO COMPARATORParticipants will receive placebo SC Q12W.
Interventions
Eligibility Criteria
You may qualify if:
- Age 35 to ≤ 80 years.
- Lp(a) ≥ 200 nmol/L during screening.
- Angiographic evidence of coronary artery disease in at least one major epicardial vessel on screening CCTA.
- History of myocardial infarction (presumed type 1 event due to plaque rupture/erosion) and/or coronary revascularization by percutaneous coronary intervention.
You may not qualify if:
- History of coronary artery bypass graft (CABG).
- Moderate to severe renal dysfunction.
- Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \> 3 x upper limit of normal (ULN), or total bilirubin (TBL) \> 2 x ULN during screening.
- History of hemorrhagic stroke.
- History of major bleeding disorder.
- Planned cardiac surgery or arterial revascularization.
- Severe heart failure.
- Current, recent, or planned lipoprotein apheresis.
- Previously received ribonucleic acid therapy specifically targeting Lp(a).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Amgenlead
Study Sites (40)
Bridgeport Hospital
Bridgeport, Connecticut, 06610, United States
Jacksonville Center for Clinical Research
Jacksonville, Florida, 32216, United States
Midwest Heart and Vascular Specialists
Overland Park, Kansas, 66211, United States
Flourish Bowie
Bowie, Maryland, 20715, United States
Montefiore Medical Center - Bronx
Philadelphia, Pennsylvania, 19141, United States
Vital Heart and Vein
Humble, Texas, 77338, United States
Advara HeartCare Wesley
Auchenflower, Queensland, 4066, Australia
University of The Sunshine Coast Clinical Trials, Sippy Downs
Sippy Downs, Queensland, 4556, Australia
Advara HeartCare Leabrook
Leabrook, South Australia, 5068, Australia
North York Diagnostic and Cardiac Centre
Vaughan, Ontario, L6A 4N9, Canada
Peking University First Hospital
Beijing, Beijing Municipality, 100034, China
The First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, 450052, China
The Second Xiangya Hospital of Central South University
Changsha, Hunan, 410011, China
The Third Xiangya Hospital of Central South University
Changsha, Hunan, 410013, China
The Second Affiliated Hospital of Nanjing Medical University
Nanjing, Jiangsu, 210011, China
General Hospital of Ningxia Medical University
Yinchuan, Ningxia, 750004, China
Shaanxi Provincial Peoples Hospital
Xi'an, Shaanxi, 710068, China
Jinan Central Hospital
Jinan, Shandong, 250013, China
Regionshospitalet Gødstrup
Herning, 7400, Denmark
Regionshospitalet Viborg
Viborg, 8800, Denmark
Centre Hospitalier Universitaire de Nice - Hopital Pasteur
Nice, 06000, France
Centre Hospitalier Universitaire de Bordeaux Hopital Haut-Leveque
Pessac, 33604, France
Centre Hospitalier Universitaire de Toulouse - Hopital Rangueil
Toulouse, 31059, France
Centre Hospitalier Regional Universitaire de Tours - Hopital Trousseau
Tours, 37044, France
Charite - Universitaetsmedizin Berlin, Campus Benjamin Franklin
Berlin, 12203, Germany
Universitaetsklinikum Essen
Essen, 45147, Germany
Universitaetsklinikum Frankfurt
Frankfurt am Main, 60590, Germany
Klinikum rechts der Isar der TUM
München, 80636, Germany
Azienda Ospedaliera Universitaria di Ferrara Arcispedale Sant Anna
Ferrara, 44124, Italy
IRCCS Centro Cardiologico Monzino
Milan, 20138, Italy
IRCCS Policlinico San Donato
San Donato Milanese, 20097, Italy
Azienda Ospedaliera Ordine Mauriziano di Torino
Torino, 10128, Italy
Tomakomai City Hospital
Tomakomai-shi, Hokkaido, 053-8567, Japan
Osaka Keisatsu Hospital
Osaka, Osaka, 543-0042, Japan
University of Yamanashi Hospital
Chuo-shi, Yamanashi, 409-3898, Japan
Tergooiziekenhuizen, locatie Hilversum
Hilversum, 1201 DA, Netherlands
Hospital Universitario Virgen Macarena
Seville, Andalusia, 41009, Spain
Hospital Alvaro Cunqueiro
Vigo, Galicia, 36312, Spain
Hospital Universitari i Politecnic La Fe
Valencia, Valencia, 46026, Spain
Hospital Universitario Ramon y Cajal
Madrid, 28023, Spain
Related Links
MeSH Terms
Conditions
Interventions
Study Officials
- STUDY DIRECTOR
MD
Amgen
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
- Expanded Access
- Yes
Study Record Dates
First Submitted
December 17, 2025
First Posted
December 19, 2025
Study Start
March 23, 2026
Primary Completion (Estimated)
June 15, 2028
Study Completion (Estimated)
June 15, 2028
Last Updated
April 16, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR
- Time Frame
- Data sharing requests relating to this study will be considered beginning 18 months after the study has ended and either 1) the product and indication (or other new use) have been granted marketing authorization in both the US and Europe, or 2) clinical development for the product and/or indication discontinues and the data will not be submitted to regulatory authorities. There is no end date for eligibility to submit a data sharing request for this study.
- Access Criteria
- Qualified researchers may submit a request containing the research objectives, the Amgen product(s) and Amgen study/studies in scope, endpoints/outcomes of interest, statistical analysis plan, data requirements, publication plan, and qualifications of the researcher(s). In general, Amgen does not grant external requests for individual patient data for the purpose of re-evaluating safety and efficacy issues already addressed in the product labelling. Requests are reviewed by a committee of internal advisors, and if not approved, may be further arbitrated by a Data Sharing Independent Review Panel. Upon approval, information necessary to address the research question will be provided under the terms of a data sharing agreement. This may include anonymized individual patient data and/or available supporting documents, containing fragments of analysis code where provided in analysis specifications. Further details are available at the URL below.
De-identified individual patient data for variables necessary to address the specific research question in an approved data sharing request.