Last reviewed · How we verify

Microplegic Solution No. 1

Washington University School of Medicine · FDA-approved active Small molecule

Microplegic Solution No. 1 is a cardioplegic solution used to induce controlled cardiac arrest and protect the heart during cardiac surgery.

Microplegic Solution No. 1 is a cardioplegic solution used to induce controlled cardiac arrest and protect the heart during cardiac surgery. Used for Myocardial protection during cardiac surgery requiring cardiopulmonary bypass.

At a glance

Generic nameMicroplegic Solution No. 1
SponsorWashington University School of Medicine
Drug classCardioplegic solution
ModalitySmall molecule
Therapeutic areaCardiovascular
PhaseFDA-approved

Mechanism of action

This solution works by rapidly depolarizing cardiac myocytes through high potassium concentration, inducing asystole (cardiac arrest) that reduces myocardial oxygen demand. The formulation typically contains electrolytes, buffers, and sometimes additives designed to preserve myocardial function and minimize ischemic injury during the period of surgical manipulation when the heart is not perfused.

Approved indications

Common side effects

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape: