STEMI - ST Elevation Myocardial InfarctionSSCORENCT06438315
SuperSaturated Oxygen Comprehensive Observational Registry
An observational study of STEMI - ST Elevation Myocardial Infarction and AMI, run by TherOx at 25 sites in United States.
Trial summary
The SuperSaturated Oxygen Comprehensive Observational Registry (SSCORE) registry, a prospectively designed observational study, aims to evaluate the clinical utility, infarct size reduction, and cost-effectiveness of SSO2 Therapy versus PCI alone among patients with anterior AMI in routine clinical practice. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- STEMI - ST Elevation Myocardial Infarction, AMI
- What is being tested?
- KCCQ, Eq5D and cMRI (Subset of patients)
- How many people
- 1,000 participants
- Where
- 25 sitesUnited States
- Study dates
- 13 Aug 2024to 31 Mar 2029
- How long will I take part?
- 2 Years
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: The study will aim to prospectively enroll 500 subjects not treated with SuperSaturated Oxygen (SSO2) Therapy (Prospective Control Cohort), 500 subjects who received SSO2 Therapy in accordance with the product label (SSO2 Treated On-Label) and any subjects that receive SSO2 at an institution that meet criteria inclusion/exclusion (IE) criteria.
Who may be able to join
None listed.
Who cannot join
- Subjects will be excluded if they meet any of the following criteria:
- Life expectancy of less than 2 years
- No access to medical records from either the index hospitalization or subsequent outpatient visits
- Currently participating in an interventional drug or device trial
- cMRI Sub-Study
- At qualifying sites that can perform cMRI scans, subjects who meet the following inclusion and exclusion criteria will be considered for the cMRI sub-study.
Show all 13Show fewer
- cMRI Inclusion Criteria
- Subjects will be included in the cMRI sub-study must meet all these criteria:
- Meet all the inclusion and exclusion criteria for the overall study
- Consent during index hospitalization to participate in the main study
- cMRI Exclusion Criteria
- Subjects will be excluded from the sub-study if they are contraindicated to MRI, including any of the following:
- Non-MRI compatible cardiac pacemaker or implantable defibrillator; Non-MRI compatible aneurysm clip or other metallic implants; Neural Stimulator (i.e., TENS unit); Any implanted or magnetically activated device (insulin pump); Any type of non-MRI compatible ear implant; Metal shavings in the orbits; Any indwelling metallic foreign body, shrapnel, or bullet; Any condition contraindicating MRI, including claustrophobia; Inability to follow breath-hold instructions or to maintain a breath-hold for >15 seconds; and Known hypersensitivity or contraindication to gadolinium contrast.
Trial locations and contacts
25 sites in 1 country. Contact the study team or a site near you to ask about taking part.
25 sites in 1 country
United States25 sites, 25 recruiting
- Recruiting
Charleston Area Medical Center
Charleston, West Virginia, 25304
Elise Anderson, MD, 304-388-5432, zuser176@vandaliahealth.org
Elise Anderson, MD
- Recruiting
University of Chicago
Chicago, Illinois, 60637
Adam Vohra, MD, Adam.Vohra@uchicagomedicine.org
Adam Vohra, MD
- Recruiting
Mercy Hospital
Coon Rapids, Minnesota, 55433
Jeff Chambers, MD, 763-236-6000, J.Chambers@mhvi.com
Jeff Chambers, MD
- Recruiting
Corewell Health Dearborn Hospital
Dearborn, Michigan, 48124
Joseph Chattahi, MD, (313) 593-7000, Joseph.Chattahi@corewellhealth.org
Joseph Chattahi, MD
- Recruiting
MemorialCare Orange Coast Medical Center
Fountain Valley, California, 92708
Khiet Hoang, MD, 657-241-9051, Research@memorialcare.org
Khiet Hoang, MD
- Recruiting
St Mary's Medical Center
Huntington, West Virginia, 25702
Cheryl Kane
Mehiar El-Hamdani, MD
- Recruiting
RWJ- Jersey City Medical Center
Jersey City, New Jersey, 07302
Kim Skelding, MD, (201) 915-2000, Kimberly.Skelding@rwjbh.org
Kim Skelding, MD
- Recruiting
UCSD Health La Jolla - Sulpizio Cardiovascular Center
La Jolla, California, 92037
Lawrence Ang, MD, 858-657-8530, lang@health.ucsd.edu
Lawrence Ang, MD
- Recruiting
MemorialCare Saddleback Medical Center
Laguna Hills, California, 92653
Khiet Hoang, MD, 657-241-9051, Research@memorialcare.org
Khiet Hoang, MD
- Recruiting
MemorialCare Long Beach Medical Center
Long Beach, California, 90806
Khiet Hoang, MD, 657-241-9051, Research@memorialcare.org
Khiet Hoang, MD
- Recruiting
Ronald Reagan UCLA Medical Center
Los Angeles, California, 90095
Regulatory Coordinator, (310) 825-9111, LDouangvila@mednet.ucla.edu
Rushi Parikh, MD
- Recruiting
North Shore University Hospital
Manhasset, New York, 11030
Rajiv Jauhar, MD, (516) 562-0100
Rajiv Jauhar, MD
- Recruiting
Baptist Health Baptist Hospital
Miami, Florida, 33176
Marcus St John, MD, (786) 596-1960, DG-MCVIResearchRegulatory@baptisthealth.net
Marcus St John, MD
- Recruiting
Aurora St Luke's Medical Center
Milwaukee, Wisconsin, 53215
Fuad Jan, MD, (414) 649-6000, businessservices.research@aah.org
Fuad Jan, MD
- Recruiting
Abbott Northwestern Hospital
Minneapolis, Minnesota, 55407
Colleen Quinlan, (612) 863-4000, Colleen.Quinlan@Allina.com
Jay Traverse, MD
- Recruiting
NCH Baker Hospital
Naples, Florida, 34102
Mazen Albaghdadi, MD, 2396245000, mazen.albaghdadi@nchmd.org
Mazen Albaghdadi, MD
- Recruiting
NCH North Naples
Naples, Florida, 34110
Luis Paz Rios, MD, (239) 624-5000, research@nchmed.org
Luis Paz Rios, MD
- Recruiting
Robert Wood Johnson University Hospital
New Brunswick, New Jersey, 08901
Tudor Vagaonescu, MD, (732) 828-3000, reasearch@rutgers.edu
Tudor Vagaonescu, MD
- Recruiting
Newark Beth Israel Medical Center
Newark, New Jersey, 07112
Sergio Waxman, MD, (973) 926-7000, sergio.waxman@rwjbh.org
Sergio Waxman, MD
- Recruiting
Carle Health Methodist Hospital
Peoria, Illinois, 61636
Surya Chaturvedula, MD, (309) 672-5522, research@carle.com
Surya Chaturvedula, MD
- Recruiting
Long Island Jewish Hospital
Queens, New York, 11040
Rajiv Jauhar, MD, 718 470-7000, Rjauhar@northwell.edu
Rajiv Jauhar, MD
- Recruiting
United Hospital
Saint Paul, Minnesota, 55102
Research Manager, (612) 863-4000, Colleen.Quinlan@Allina.com
Jay Traverse, MD
- Recruiting
UCSD Hillcrest Medical Center
San Diego, California, 92103
Lawrence Ang, MD, 858-657-7000, lang@health.ucsd.edu
Lawrence Ang, MD
- Recruiting
UCLA Santa Monica Medical Center
Santa Monica, California, 90404
Ladda Douangvila, (310) 825-9111, LDouangvila@mednet.ucla.edu
Rushi Parikh, MD
- Recruiting
Ascension Via Christi St Francis
Wichita, Kansas, 67214
Bassem Chehab, MD, (316) 268-5000, research@ascension.org
Bassem Chehab, MD
About this study
The SuperSaturated Oxygen Comprehensive Observational Registry (SSCORE) registry, a prospectively designed observational study, aims to evaluate the clinical utility, infarct size reduction, and cost-effectiveness of SSO2 Therapy versus PCI alone among patients with anterior AMI in routine clinical practice.
Read the detailed description
The goal of SSCORE is to collect real-world data from patients treated with SSO2 Therapy to determine its impact on the overall HF (heart failure) burden on patients and healthcare systems compared with usual care for treatment of patients with AMI. Additionally, the study will confirm infarct size reduction in patients treated with SSO2 Therapy compared to standard of care treatment. The SSCORE Registry will generate effectiveness and healthcare resource utilization data that will be used in cost-effectiveness analysis modeling.
- Conditions
- STEMI - ST Elevation Myocardial Infarction, AMI
- Being tested
- KCCQ, Eq5D, cMRI (Subset of patients)
- Medical subject headings
- ST Elevation Myocardial Infarction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
KCCQOther
Quality of life questionnaire
Eq5DOther
Eq5d quality of life questionnaire
cMRI (Subset of patients)Other
cardiac MRI
| Study group | Role | What they receive |
|---|---|---|
| SuperSaturated Oxygen (SSO2) Therapy | Treated with SSO2 Receives: Other: KCCQ; Other: Eq5D; Other: cMRI (Subset of patients) | |
| Control | Not treated with SSO2 Receives: Other: KCCQ; Other: Eq5D; Other: cMRI (Subset of patients) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cardiovascular (CV) death or Heart Failure (HF) burden
The clinical outcome will be a non-hierarchical composite measured during a median follow-up of 1.5 years (minimum of 1 year and maximum of 2 years). The composite will be analyzed as the time-to-first occurrence of CV death or HF event, defined as new/worsening HF requiring hospitalization or outpatient treatment.
Measured: Median of 1.5years
Infarct Size
Cardiac magnetic resonance imaging will be used to measure the co-primary endpoint of infarct size within 2-7 days after PCI in a subset of patients.
Measured: 2-7 days after PCI
Secondary outcomes (8)
MVO
Microvascular obstruction (MVO) measured within 2-7 days post PCI
Measured: 2-7 days post PCI
IMH
Intramyocardial hemorrhage measured within 2-7 days post PCI
Measured: 2-7 days post PCI
Rate of all cause mortality
Rate of all cause mortality
Measured: 2 years
Rate of cardiovascular death
Rate of cardiovascular death
Measured: 2 years
Rate of Hospitalization for Heart Failure
Rate of Hospitalization for Heart Failure
Measured: 2 years
Rate of All-cause Hospitalization
Rate of All-cause Hospitalization
Measured: 2 years
Change in EQ5D-3L Score
Patient reported outcome, 0 to1, where 0 is death and 1 is perfect health
Measured: 2 years
Change in Kansas City Cardiomyopathy Questionnaire (KCCQ-23) Score
Heart related patient reported outcome, scaled from 0 to 100, with 0 representing the worst symptoms and function and 100 representing the best
Measured: 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 May 2024
- Study start13 Aug 2024
- Primary completionMar 2027 (estimated)
- Study completion31 Mar 2029 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for STEMI - ST Elevation Myocardial InfarctionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 1,000 participants (estimated)
- Target duration
- 2 Years
Sponsor and investigators
- Lead sponsor
- TherOx
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- William W O'Neill, MD, Principal investigator, Henry Ford Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06438315
- Sponsor's protocol ID
- EDC-5731
- Acronym
- SSCORE
- Status last verified
- Mar 2026
- First submitted
- 21 May 2024
- Last updated
- 20 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
- Individual data sharing
- No
Publications
Stone GW, Martin JL, de Boer MJ, Margheri M, Bramucci E, Blankenship JC, Metzger DC, Gibbons RJ, Lindsay BS, Weiner BH, Lansky AJ, Krucoff MW, Fahy M, Boscardin WJ; AMIHOT-II Trial Investigators. Effect of supersaturated oxygen delivery on infarct size after percutaneous coronary intervention in acute myocardial infarction. Circ Cardiovasc Interv. 2009 Oct;2(5):366-75. doi: 10.1161/CIRCINTERVENTIONS.108.840066. Epub 2009 Sep 15.
PubMed 20031745David SW, Khan ZA, Patel NC, Metzger DC, Wood FO, Wasserman HS, Lotfi AS, Hanson ID, Dixon SR, LaLonde TA, Genereux P, Ozan MO, Maehara A, Stone GW. Evaluation of intracoronary hyperoxemic oxygen therapy in acute anterior myocardial infarction: The IC-HOT study. Catheter Cardiovasc Interv. 2019 Apr 1;93(5):882-890. doi: 10.1002/ccd.27905. Epub 2018 Sep 28.
PubMed 30265429
Study at a glance
From the registry record, last updated by the sponsor on 20 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- SuperSaturated Oxygen Comprehensive Observational Registry
- ClinicalTrials.gov ID
- NCT06438315
- Acronym / sponsor ID
- SSCORE / EDC-5731
- Conditions
- STEMI - ST Elevation Myocardial Infarction, AMI
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 1,000 participants (estimated)
- Lead sponsor
- TherOxIndustry (pharma, biotech, devices)
- Study start
- 13 Aug 2024 (actual)
- Primary completion
- Mar 2027 (estimated)
- Study completion
- 31 Mar 2029 (estimated)
- First posted
- 31 May 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The SuperSaturated Oxygen Comprehensive Observational Registry (SSCORE) registry, a prospectively designed observational study, aims to evaluate the clinical utility, infarct size reduction, and cost-effectiveness of SSO2 Therapy versus PCI alone among patients with anterior AMI in routine clinical practice.
Detailed description
The goal of SSCORE is to collect real-world data from patients treated with SSO2 Therapy to determine its impact on the overall HF (heart failure) burden on patients and healthcare systems compared with usual care for treatment of patients with AMI. Additionally, the study will confirm infarct size reduction in patients treated with SSO2 Therapy compared to standard of care treatment. The SSCORE Registry will generate effectiveness and healthcare resource utilization data that will be used in cost-effectiveness analysis modeling.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Target follow-up
- 2 Years
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| SuperSaturated Oxygen (SSO2) Therapy | – | Other: KCCQ, Other: Eq5D, Other: cMRI (Subset of patients)Treated with SSO2 |
| Control | – | Other: KCCQ, Other: Eq5D, Other: cMRI (Subset of patients)Not treated with SSO2 |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The study will aim to prospectively enroll 500 subjects not treated with SuperSaturated Oxygen (SSO2) Therapy (Prospective Control Cohort), 500 subjects who received SSO2 Therapy in accordance with the product label (SSO2 Treated On-Label) and any subjects that receive SSO2 at an institution that meet criteria inclusion/exclusion (IE) criteria.
Key inclusion criteria (0 listed)
Key exclusion criteria (13 listed)
- Life expectancy of less than 2 years
- No access to medical records from either the index hospitalization or subsequent outpatient visits
- Currently participating in an interventional drug or device trial
- cMRI Sub-Study
- At qualifying sites that can perform cMRI scans, subjects who meet the following inclusion and exclusion criteria will be considered for the cMRI sub-study.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| KCCQQuality of life questionnaire | Other | Control, SuperSaturated Oxygen (SSO2) Therapy |
| Eq5DEq5d quality of life questionnaire | Other | Control, SuperSaturated Oxygen (SSO2) Therapy |
| cMRI (Subset of patients)cardiac MRI | Other | Control, SuperSaturated Oxygen (SSO2) Therapy |
Primary outcome
Cardiovascular (CV) death or Heart Failure (HF) burden
Time frame: Median of 1.5years
The clinical outcome will be a non-hierarchical composite measured during a median follow-up of 1.5 years (minimum of 1 year and maximum of 2 years). The composite will be analyzed as the time-to-first occurrence of CV death or HF event, defined as new/worsening HF requiring hospitalization or outpatient treatment.
Infarct Size
Time frame: 2-7 days after PCI
Cardiac magnetic resonance imaging will be used to measure the co-primary endpoint of infarct size within 2-7 days after PCI in a subset of patients.
8 secondary outcomes
MVO
Time frame: 2-7 days post PCI
IMH
Time frame: 2-7 days post PCI
Rate of all cause mortality
Time frame: 2 years
Rate of cardiovascular death
Time frame: 2 years
Rate of Hospitalization for Heart Failure
Time frame: 2 years
Rate of All-cause Hospitalization
Time frame: 2 years
Change in EQ5D-3L Score
Time frame: 2 years
Change in Kansas City Cardiomyopathy Questionnaire (KCCQ-23) Score
Time frame: 2 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Aug 2026.
- Background: PubMed 20031745Stone GW, Martin JL, de Boer MJ, Margheri M, Bramucci E, Blankenship JC, Metzger DC, Gibbons RJ, Lindsay BS, Weiner BH, Lansky AJ, Krucoff MW, Fahy M, Boscardin WJ; AMIHOT-II Trial Investigators. Effect of supersaturated oxygen delivery on infarct size after percutaneous coronary intervention in acute myocardial infarction. Circ Cardiovasc Interv. 2009 Oct;2(5):366-75. doi: 10.1161/CIRCINTERVENTIONS.108.840066. Epub 2009 Sep 15.
- Background: PubMed 30265429David SW, Khan ZA, Patel NC, Metzger DC, Wood FO, Wasserman HS, Lotfi AS, Hanson ID, Dixon SR, LaLonde TA, Genereux P, Ozan MO, Maehara A, Stone GW. Evaluation of intracoronary hyperoxemic oxygen therapy in acute anterior myocardial infarction: The IC-HOT study. Catheter Cardiovasc Interv. 2019 Apr 1;93(5):882-890. doi: 10.1002/ccd.27905. Epub 2018 Sep 28.
- Individual participant dataSharing planned: No
Related trials for STEMI - ST Elevation Myocardial Infarction
Recruiting
Optimal Timing of Staged Complete Revascularization in STEMI With Multivessel Disease (OPTION-STEMI2)
Myocardial Infarction (MI)
RecruitingObservational study
Integrated Assessment of Immune-Inflammatory and Metabolic Biomarkers for Prediction of Coronary No-Reflow Following Primary PCI in STEMI Patients
Integrated Assessment, Immune-Inflammatory
Active, not recruiting
Physiology-guided vs Angiography-guided Non-culprit Lesion Complete Revascularization for Acute MI & Multivessel Disease
Acute Myocardial Infarction, Coronary Artery Disease
Enrolling by invitationObservational study
Metabolic Characteristics of Plasma OxPLs in STEMI Patients.
STEMI - ST-segment Elevation Myocardial Infarction
Not yet recruitingObservational study
AI-ECG Detection of Occlusion Myocardial Infarction at Emergency Department Triage (TRIACS)
Acute Coronary Syndromes, Chest Pain
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
William W O'Neill, MD principal investigator
Henry Ford Hospital
25 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of STEMI - ST Elevation Myocardial Infarction and AMI, run by TherOx at 25 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 0 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 20 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 25 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Jennifer Gardner (949-300-2811, sscore.zoll@zoll.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cardiovascular (CV) death or Heart Failure (HF) burden (time frame: Median of 1.5years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06438315, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Aug 2026.