Coronary disease & ACSTrial design

International study of coronary microvascular angina (iCorMicA): A registry-based diagnostic study and nested randomized trial

Am Heart JPublished

  • international, multicenter, prospective, registry-based study and nested, randomized, controlled, triple-blind, and endpoint trial
  • Participants, community care providers, and outcomes assessors are masked

Study context

Population
Patients with angina undergoing invasive management (coronary angiography); participants without obstructive coronary artery disease eligible for randomizationenrolled into the registry · randomized 1,047 · not randomized (registry-only) 386
Participants
1,483 patients
Planned comparison
coronary function test-guided management vs results not disclosed
Primary endpoint
Within-individual change in Seattle Angina Questionnaire summary score (randomized trial)
Follow-up
12-months from baseline

No results yet. This paper sets out the design of a trial; its results are to come.

Further findings

Study conduct

First patient screened
December 18, 2020
Last patient enrolled
June 30, 2026
Sites
Forty
United Kingdom
n = 35
Republic of Ireland
n = 2
Holland
n = 2
Poland
n = 1

Original publication

International study of coronary microvascular angina (iCorMicA): A registry-based diagnostic study and nested randomized trial. Am Heart J. Published 6 July 2026. doi:10.1016/j.ahj.2026.107527

Summarised from the published abstract; every number is checked against it