What this phase means
Phase 2: researchers already know a roughly safe dose (from phase 1). This stage asks whether the treatment actually helps the condition, and watches side effects more closely.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are Colchicine, or Placebo. The registry lists allocation as randomized. This study will measure the impact of colchicine on the change in myocardial flow reserve (MFR), a marker for coronary microvascular dysfunction (CMD), compared to a matched dummy treatment (placebo) in patients with heart failure and ejection fraction above 40% (including patients with improved EF).
They plan to enroll about 64 people at Montreal. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
Reversing Microvascular Dysfunction in Heart Failure With Ejection Fraction > 40% Using Colchicine (The COL-Micro-HF Study)
Interventions: Colchicine, Placebo
Primary outcome (registry wording): Change in myocardial flow reserve (MFR) between baseline and six months