Esmolol
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Summary
Esmolol (CHEMBL768) is an approved small molecule (ATC C07AB09) targeting ADRB1; indicated across 13 conditions including cardiovascular disorder and toxic shock syndrome.
At a glance
- Status: Approved (max clinical phase 4)
- Modality: Small molecule
- ATC class: C07AB09
- Targets: 1 (ADRB1)
- Indications: 13 conditions
- Clinical trials: 75
- Chemistry: 295.37 Da · C16H25NO4
Identifiers
Drug identity and classification
| Field | Value |
|---|---|
| ChEMBL ID | CHEMBL768 |
| Name | Esmolol |
| Type | Small molecule |
| Max phase | 4 |
| FDA approved | yes |
| PubChem CID | 59768 |
| ChEBI | CHEBI:88206 |
| ATC | C07AB09 |
| Molecular formula | C16H25NO4 |
| Molecular weight | 295.37 |
| InChIKey | AQNDDEOPVVGCPG-UHFFFAOYSA-N |
SMILES: CC(C)NCC(COC1=CC=C(C=C1)CCC(=O)OC)O
IUPAC name: methyl 3-[4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl]propanoate
ChEBI definition: A methyl ester that is methyl 3-(4-hydroxyphenyl)propanoate in which the hydrogen attached to the phenolic hydroxy group is substituted by a 2-hydroxy-3-(isopropylamino)propyl group.
Also known as: Esmolol, esmolol, ESMOLOL
Parent form; salt/anhydrous children: CHEMBL1201115
Patent coverage: 3,800 distinct patent families (15,101 SureChEMBL compound mentions), from 1 matched compound structure(s). Mentions count patents naming the compound (not distinct inventions), so promiscuous / reference molecules inflate the mention figure — families are the dedup metric.
Targets
Targets
Primary targets (GtoPdb curated mechanism): the Cancer dependency column is the DepMap CRISPR fitness signal (% of screened cell lines dependent on the target).
| Gene | Target | Action | pAffinity | Cancer dependency | UniProt |
|---|---|---|---|---|---|
| ADRB1 | β1-adrenoceptor | Antagonist | 6.9 | 0% | P08588 |
Broader ChEMBL bioactivity targets: 3 (assay-derived). Sample: Beta-2 adrenergic receptor, Beta-1 adrenergic receptor, Beta-2 adrenergic receptor.
Bioactivity
ChEMBL activities: 4 potent at pChembl ≥ 5 of 5 total. Top 30 by potency (10 = 0.1 nM, 6 = 1 µM):
| Target | pChembl | Type | Value | Unit | Activity ID |
|---|---|---|---|---|---|
| ADRB1 | 6.94 | Ki | 113.7 | nM | CHEMBL_ACT_7648034 |
| ADRB1 | 6.71 | IC50 | 197 | nM | CHEMBL_ACT_7648033 |
| ADRB1 | 6.07 | AC50 | 855.6 | nM | CHEMBL_ACT_25121569 |
| Q8K4Z4 | 5.2 | Kd | 6310 | nM | CHEMBL_ACT_116484 |
Target pathways
Aggregated over 1 target gene(s): ADRB1.
Top Reactome pathways
8 total, by targets touching each:
| Pathway | Targets | Genes |
|---|---|---|
| Signal Transduction | 1 | ADRB1 |
| Signaling by GPCR | 1 | ADRB1 |
| Class A/1 (Rhodopsin-like receptors) | 1 | ADRB1 |
| Amine ligand-binding receptors | 1 | ADRB1 |
| GPCR downstream signalling | 1 | ADRB1 |
| Adrenoceptors | 1 | ADRB1 |
| G alpha (s) signalling events | 1 | ADRB1 |
| GPCR ligand binding | 1 | ADRB1 |
Dominant GO biological processes
| GO term | Targets |
|---|---|
| positive regulation of heart rate by epinephrine-norepinephrine | 1 |
| positive regulation of the force of heart contraction by epinephrine-norepinephrine | 1 |
| diet induced thermogenesis | 1 |
| norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure | 1 |
| adenylate cyclase-activating G protein-coupled receptor signaling pathway | 1 |
| response to cold | 1 |
| positive regulation of cardiac muscle cell apoptotic process | 1 |
| heat generation | 1 |
| negative regulation of multicellular organism growth | 1 |
| fear response | 1 |
| positive regulation of MAPK cascade | 1 |
| regulation of circadian sleep/wake cycle, sleep | 1 |
| brown fat cell differentiation | 1 |
| adenylate cyclase-activating adrenergic receptor signaling pathway | 1 |
| positive regulation of cold-induced thermogenesis | 1 |
Indications & clinical
Indications
13 indications (1 at ChEMBL trial phase 4). Phase below is the highest clinical-trial phase recorded for this drug against each disease — not the molecule’s overall approval status (that is in the Summary).
| Indication | Trial phase | MONDO | EFO |
|---|---|---|---|
| cardiovascular disorder | 4 | MONDO:0004995 | EFO:0000319 |
| toxic shock syndrome | 3 | MONDO:0001881 | EFO:0006834 |
| brain aneurysm | 3 | MONDO:0005291 | EFO:0003870 |
| coronary artery disorder | 3 | MONDO:0005010 | EFO:0001645 |
| acute respiratory distress syndrome | 3 | MONDO:0006502 | EFO:1000637 |
| cerebral arterial disease | 3 | MONDO:0006693 | EFO:1000859 |
| atrial fibrillation | 2 | MONDO:0004981 | EFO:0000275 |
| sinusitis | 2 | MONDO:0005961 | EFO:0007486 |
| brain neoplasm | 1 | MONDO:0021211 | EFO:0003833 |
| ovarian cyst | 1 | MONDO:0003282 | HP:0000138 |
| ischemia reperfusion injury | 1 | MONDO:0005203 | EFO:0002687 |
2 further indication records had no mapped disease name (EFO/MeSH-only) or were duplicates, and are omitted.
Clinical trials
Total trials: 75.
Phase distribution
| Phase | Trials |
|---|---|
| PHASE4 | 24 |
| Not specified | 20 |
| PHASE2 | 15 |
| PHASE3 | 6 |
| PHASE1/PHASE2 | 4 |
| PHASE2/PHASE3 | 3 |
| PHASE1 | 2 |
| EARLY_PHASE1 | 1 |
Top trials by phase / activity
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT05635877 | PHASE4 | RECRUITING | Effects of Low-dose Esmolol on Myocardial Injury After Non-cardiac Surgery in Elderly Frail Patients |
| NCT06958393 | PHASE4 | NOT_YET_RECRUITING | Effect of Opioid-free Anaesthesia on Postoperative Delirium in Elderly Patients Undergoing Gastrointestinal Surgery |
| NCT07019818 | PHASE4 | RECRUITING | Esmolol Versus Sufentanil on the Quality of Post-cholecystectomy Recovery Laparoscopic Anaesthesia With Orotracheal Intubation on an Outpatient Basis |
| NCT00959569 | PHASE4 | COMPLETED | Esmolol in Cardiac Surgery |
| NCT01114971 | PHASE4 | COMPLETED | Labetalol and Esmolol: Vital Signs and Post Operative Pain Management |
| NCT01114997 | PHASE4 | TERMINATED | Effect of Lidocaine and Esmolol to Improve the Quality of Recovery |
| NCT01171911 | PHASE4 | UNKNOWN | Comparison of Intravenous Injection of Calcium Antagonist and Beta-blockade on Endothelial Shear Stress of Coronary Artery |
| NCT01179113 | PHASE4 | TERMINATED | Esmolol Infusion During Laminectomy: Effect on Quality of Recovery |
| NCT01404767 | PHASE4 | TERMINATED | Tight Hemodynamic Control in Patients Who Are Chronically on Metoprolol |
| NCT01628562 | PHASE4 | COMPLETED | A Comparison of the Perioperative Hemodynamic Effects of Remifentanil and Esmolol in Intracranial Surgery |
| NCT01752959 | PHASE4 | UNKNOWN | A Comparison of Esmolol and Remifentanil to Reduce Blood Loss |
| NCT01824758 | PHASE4 | COMPLETED | Effect of Esmolol on Pain Due to Rocuronium |
| NCT02062333 | PHASE4 | COMPLETED | The Effects of the Drugs Used in Hypotensive Anaesthesia on Cochlea |
| NCT02327923 | PHASE4 | COMPLETED | Intraoperative Lidocaine Infusion vs. Esmolol Infusion for Postoperative Analgesia in Laparoscopic Cholecystectomy |
| NCT02466542 | PHASE4 | COMPLETED | Analgesic Effect of Intraoperative Esmolol in Mastectomies |
| NCT02844894 | PHASE4 | UNKNOWN | Hemodynamic Response to Intubation |
| NCT03533179 | PHASE4 | COMPLETED | Glucagon’s Cardiovascular Effects With and Without Beta-blocker-induced Cardioinhibition |
| NCT03549923 | PHASE4 | COMPLETED | Evaluation of Early CRRT InTerventions in Patients With ECMO(ELITE) |
| NCT03612492 | PHASE4 | UNKNOWN | The Effects of Lidocaine and Esmolol on Attenuation of Hemodynamic Response to Orotracheal Intubation |
| NCT04086940 | PHASE4 | UNKNOWN | Role of Intraoperative Beta Blocker for Morbid Obese Patients Undergoing Laparoscopic Bariatric Surgery |
| NCT04264286 | PHASE4 | UNKNOWN | The Effects of Esmolol on the Hemodynamic Response to Orotracheal Extubation |
| NCT04752111 | PHASE4 | COMPLETED | Dose Esmolol Infusion Have an Adjuvant Effect to TAP Block for Pain Control in Laparoscopic Cholecystectomy. |
| NCT05073094 | PHASE4 | UNKNOWN | Esmolol for Myocardial Protection in Hypertrophic Obstructive Cardiomyopathy |
| NCT05694585 | PHASE4 | UNKNOWN | Effect of Esmolol on Perioperative Stress Reaction |
| NCT06013319 | PHASE3 | RECRUITING | Effect of Esmolol on Oxygenation Index in Patients With Acute Respiratory Distress Syndrome |
| NCT00348101 | PHASE3 | COMPLETED | Effects of Beta-Blocker Therapy and Phosphodiesterase Inhibition on Cardiac Neurohormonal Activation |
| NCT00922467 | PHASE3 | TERMINATED | Influence of Esmolol on a Closed-Loop Anesthesia System |
| NCT01208402 | PHASE3 | TERMINATED | Esmolol for Treatment of Perioperative Tachycardia |
| NCT02455440 | PHASE3 | COMPLETED | Esmolol Infusion in Patients Undergoing Craniotomy |
| NCT02563288 | PHASE3 | UNKNOWN | Esmolol Versus Dexmedetomidine During Intracranial Procedures |
| NCT02842983 | PHASE2/PHASE3 | UNKNOWN | Pilot Study: Echocardiographic and Hemodynamic Effects of Esmolol in Septic Shock Patients |
| NCT04356352 | PHASE2/PHASE3 | TERMINATED | Lidocaine, Esmolol, or Placebo to Relieve IV Propofol Pain |
| NCT05850832 | PHASE2/PHASE3 | COMPLETED | Efficacy of Esmolol Versus Magnesium Sulphate on Quality of Recovery in Patients Undergoing Laparoscopic Cholecystectomy: Randomized Controlled Study |
| NCT06457100 | PHASE1/PHASE2 | ACTIVE_NOT_RECRUITING | Esmolol Versus Lidocaine on the Quality of Postoperative Recovery in Patients Undergoing Functional Endoscopic Sinus Surgery |
| NCT06522594 | PHASE2 | RECRUITING | REMAP ECMO - Beta Receptor Modulation Trial |
| NCT07313605 | PHASE1/PHASE2 | NOT_YET_RECRUITING | POCUS-Guided Esmolol in Septic Shock: A Pilot RCT |
| NCT00302692 | PHASE2 | UNKNOWN | Use of Beta Blockers in Elderly Trauma Patients |
| NCT00713401 | PHASE2 | COMPLETED | Safety Study of Tecadenoson to Treat Atrial Fibrillation |
| NCT01231698 | PHASE2 | COMPLETED | Heart Rate Control With Esmolol in Septic Shock |
| NCT01313143 | PHASE2 | COMPLETED | A Short Term Pharmacokinetic, Pharmacodynamic and Tolerability Study to Compare AOP200704 vs. Esmolol |
Clinical evidence (CIViC)
No CIViC predictive evidence (expected for non-precision-medicine drugs).
Pharmacology
Pharmacogenomics
PharmGKB dosing guidelines (1) — CPIC / DPWG genotype-guided dosing for this drug (drug × pharmacogene):
| Guideline | Source | Gene(s) | Dosing | Recommendation |
|---|---|---|---|---|
| Annotation of CPIC Guideline for acebutolol, atenolol, betaxolol, biso | CPIC | ADRA2C;ADRB1;GRK4;GRK5 |
Related molecules
Related molecules
Molecules sharing ≥1 of this drug’s curated primary targets, merged from two biobtree sources and ranked by shared-target count, then clinical phase: ChEMBL clinical-stage candidates (development phase ≥2) and PubChem drug-class bioactivity (approved / known drugs acting on the target). Deduplicated by drug name; the drug’s own salt forms are excluded. Note: for a drug with few primary targets a shared-target match can reflect off-target / promiscuous binding rather than the same therapeutic mechanism — the phase ordering surfaces bona-fide therapeutics first.
179 molecules share ≥1 primary target. Top 60 by shared-target count:
| Molecule | Source | Status | Shared targets |
|---|---|---|---|
| OLODATEROL | ChEMBL + PubChem | Phase 4 (approved) | ADRB1 |
| TAMSULOSIN | ChEMBL + PubChem | Phase 4 (approved) | ADRB1 |
| ACEBUTOLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| ALBUTEROL | ChEMBL | Phase 4 (approved) | ADRB1 |
| AMIODARONE | ChEMBL | Phase 4 (approved) | ADRB1 |
| AMITRIPTYLINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| ARFORMOTEROL | ChEMBL | Phase 4 (approved) | ADRB1 |
| ARIPIPRAZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| ASTEMIZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| ATENOLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| AZELASTINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| BENFLUOREX | ChEMBL | Phase 4 (approved) | ADRB1 |
| BENPERIDOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| BENZBROMARONE | ChEMBL | Phase 4 (approved) | ADRB1 |
| BEPRIDIL | ChEMBL | Phase 4 (approved) | ADRB1 |
| BETAXOLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| BISOPROLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| BREXPIPRAZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| BROMOCRIPTINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CANDESARTAN CILEXETIL | ChEMBL | Phase 4 (approved) | ADRB1 |
| CARIPRAZINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CARTEOLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| CARVEDILOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| CELIPROLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| CHLORHEXIDINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CHLORPROTHIXENE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CINACALCET | ChEMBL | Phase 4 (approved) | ADRB1 |
| CLEMASTINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CLOMIPRAMINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CLOTRIMAZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| CODEINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| DARIFENACIN | ChEMBL | Phase 4 (approved) | ADRB1 |
| DAUNORUBICIN | ChEMBL | Phase 4 (approved) | ADRB1 |
| DECITABINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| DIETHYLSTILBESTROL | ChEMBL | Phase 4 (approved) | ADRB1 |
| DOBUTAMINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| DOMPERIDONE | ChEMBL | Phase 4 (approved) | ADRB1 |
| DULOXETINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| EBASTINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| ECONAZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| EFAVIRENZ | ChEMBL | Phase 4 (approved) | ADRB1 |
| EPALRESTAT | ChEMBL | Phase 4 (approved) | ADRB1 |
| EPINEPHRINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| ERGOTAMINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| FENOTEROL | ChEMBL | Phase 4 (approved) | ADRB1 |
| FLUSPIRILENE | ChEMBL | Phase 4 (approved) | ADRB1 |
| FORMOTEROL | ChEMBL | Phase 4 (approved) | ADRB1 |
| INDACATEROL | ChEMBL | Phase 4 (approved) | ADRB1 |
| INDOCYANINE GREEN ACID FORM | ChEMBL | Phase 4 (approved) | ADRB1 |
| ISOCONAZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| ISOPROTERENOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| LABETALOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| LASOFOXIFENE | ChEMBL | Phase 4 (approved) | ADRB1 |
| LEVOBUNOLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| LORCASERIN | ChEMBL | Phase 4 (approved) | ADRB1 |
| METARAMINOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| METHYLERGONOVINE | ChEMBL | Phase 4 (approved) | ADRB1 |
| METOPROLOL | ChEMBL | Phase 4 (approved) | ADRB1 |
| MICONAZOLE | ChEMBL | Phase 4 (approved) | ADRB1 |
| MONTELUKAST | ChEMBL | Phase 4 (approved) | ADRB1 |
Related Atlas pages
- Genes: ADRB1
- Diseases: cardiovascular disorder, toxic shock syndrome, brain aneurysm, coronary artery disorder, acute respiratory distress syndrome, cerebral arterial disease
- Drugs: Olodaterol, Tamsulosin, Acebutolol, Albuterol, Amiodarone, Amitriptyline, Arformoterol, Aripiprazole, Astemizole, Atenolol, Azelastine, Benfluorex, Benperidol, Benzbromarone, Bepridil, Betaxolol, Bisoprolol, Brexpiprazole, Bromocriptine, Candesartan Cilexetil, Cariprazine, Carteolol, Carvedilol, Celiprolol, Chlorhexidine, Chlorprothixene, Cinacalcet, Clemastine, Clomipramine, Clotrimazole, Codeine, Darifenacin, Daunorubicin, Decitabine, Diethylstilbestrol, Dobutamine, Domperidone, Duloxetine, Ebastine, Econazole, Efavirenz, Epalrestat, Epinephrine, Ergotamine, Fenoterol, Fluspirilene, Formoterol, Indacaterol, Indocyanine Green Acid Form, Isoconazole, Isoproterenol, Labetalol, Lasofoxifene, Levobunolol, Lorcaserin, Metaraminol, Methylergonovine, Metoprolol, Montelukast