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OPC-1085EL

Otsuka Beijing Research Institute · Phase 3 active Small molecule

OPC-1085EL is a selective serotonin 5-HT2C receptor agonist that promotes weight loss by increasing satiety and reducing appetite.

OPC-1085EL is a selective serotonin 5-HT2C receptor agonist that promotes weight loss by increasing satiety and reducing appetite. Used for Obesity or overweight with weight-related comorbidities.

At a glance

Generic nameOPC-1085EL
Also known asOPC-1085EL ophthalmic solution
SponsorOtsuka Beijing Research Institute
Drug class5-HT2C receptor agonist
Target5-HT2C receptor
ModalitySmall molecule
Therapeutic areaObesity/Metabolic Disease
PhasePhase 3

Mechanism of action

The drug acts as a partial agonist at the 5-HT2C receptor, which is expressed on pro-opiomelanocortin (POMC) neurons in the hypothalamus. Activation of these neurons suppresses appetite and increases energy expenditure, leading to reduced caloric intake and body weight reduction. This mechanism is distinct from monoamine reuptake inhibitors and targets a specific pathway involved in appetite regulation.

Approved indications

Common side effects

Key clinical trials

Primary sources

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