Comparison of the Outcomes of Single vs Multiple Arterial Grafts in Women

Condition(s) studied

Investigational drug(s) / intervention(s)

Single arterial graft: This interventions consists of patients receiving the left internal thoracic artery to the left anterior descending coronary artery of the heart. In addition to the left internal thoracic artery patients will receive venous grafts for all additional grafting.

Multiple arterial grafting: This intervention consists of the patient receiving the left internal thoracic artery to the left anterior descending coronary artery of the heart. The second arterial graft (right internal thoracic artery or radial artery) will be directed to the major branch of the circumflex. Additional grafts will include saphenous veins or arterial conduits.

Study summary

The central hypothesis of ROMA:Women is that the use of multiple arterial grafting (MAG) will improve clinical outcomes and quality of life (QOL) compared to single arterial grafting (SAG).

The specific aims of ROMA:Women are:

Aim 1: Determine the impact of MAG vs SAG on major adverse cardiac and cerebrovascular events in women undergoing coronary artery bypass grafting (CABG). The investigators will compare major adverse cardiac and cerebrovascular events (death, stroke, non-procedural myocardial infarction, repeat revascularization, and hospital readmission for acute coronary syndrome or heart failure) in a cohort of 2,300 women randomized 1:1 to MAG or SAG. Differences by important clinical and surgical subgroups (patients younger or older than 70 years, diabetics, racial and ethnic minorities, on vs off pump CABG, type of arterial grafts used) will also be evaluated. The women enrolled in the ongoing ROMA trial (anticipated to be approximately 690) will be included in ROMA:Women, increasing efficiency and reducing enrollment time.

Hypothesis 1.0. MAG will reduce the incidence of major adverse cardiac and cerebrovascular events.

Hypothesis 1.1. The improvement with MAG will be consistent across key subgroups.

Aim 2: Determine the impact of MAG vs SAG on generic and disease-specific QOL, physical and mental health symptoms in women undergoing CABG. The investigators will compare generic (SF-12, EQ-5D) and disease-specific (Seattle Angina Questionnaire) QOL and physical and mental health symptoms (PROMIS-29) in a sub-cohort of 500 women randomized 1:1 to MAG or SAG (including those enrolled in ROMA:QOL). Differences by important subgroups (as defined above) will also be evaluated.

Hypothesis 2.0. MAG will improve generic and disease-specific QOL compared to SAG.

Hypothesis 2.1. MAG will improve physical and mental health symptoms compared to SAG.

Hypothesis 2.2. The improvement with MAG will be consistent across key subgroups.

Eligibility

Primary outcome measure(s)

• Primary outcome for aim 1: Death from any cause, any stroke, non-procedural myocardial infarction, repeat revascularization and hospital readmission for acute coronary syndrome or heart failure. — Postoperatively, minimum 2.5 year follow-up
  The primary outcome for aim 1 will be a composite of the first occurrence of death from any cause, any stroke, non-procedural myocardial infarction (\>48 hours after surgery), repeat revascularization and hospital readmission for acute coronary syndrome or heart failure.
• Primary outcome for aim 2: Disease-specific quality of life — Postoperatively, minimum 2.5 year follow-up
  Assessed using the Seattle Angina Questionnaire (SAQ), a validated 19-item questionnaire that measures five domains related to coronary disease: angina frequency, physical limitations, quality of life, angina stability, and treatment satisfaction. Scores range from 0 to 100 with higher scores indicating fewer symptoms and better health status. The minimum clinically important difference on the SAQ is 5 points. The primary endpoint for aim 2 is the absolute change in the Seattle Angina Questionnaire (SAQ) at 12 months compared to baseline.

Trial sites (146)

+ 106 more sites — see the full list on the official registry below.

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