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Remifentanil adapted to SPI

Erasme University Hospital · FDA-approved active Small molecule

Remifentanil is a potent opioid agonist that binds to mu-opioid receptors to provide rapid-onset, short-acting analgesia and sedation, with dosing adapted to Surgical Pleth Index (SPI) for real-time pain monitoring.

Remifentanil is a potent opioid agonist that binds to mu-opioid receptors to provide rapid-onset, short-acting analgesia and sedation, with dosing adapted to Surgical Pleth Index (SPI) for real-time pain monitoring. Used for Intraoperative analgesia and sedation during general anesthesia, guided by Surgical Pleth Index monitoring.

At a glance

Generic nameRemifentanil adapted to SPI
SponsorErasme University Hospital
Drug classOpioid agonist
TargetMu-opioid receptor (OPRM1)
ModalitySmall molecule
Therapeutic areaAnesthesia / Perioperative Pain Management
PhaseFDA-approved

Mechanism of action

Remifentanil activates mu-opioid receptors in the central nervous system to produce analgesia and sedation. The SPI adaptation represents a closed-loop or guided dosing approach where the Surgical Pleth Index—a non-invasive measure of nociception derived from photoplethysmography—is used to titrate remifentanil dosing in real-time during anesthesia, aiming to optimize pain control while minimizing overdosing.

Approved indications

Common side effects

Key clinical trials

Primary sources

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

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