Repotrectinib

Identification

Summary

Repotrectinib is a tyrosine kinase inhibitor used to treat locally active or metastatic non-small cell lung cancer

Brand Names
Augtyro
Generic Name
Repotrectinib
DrugBank Accession Number
DB16826
Background

Repotrectinib is a next-generation tyrosine kinase inhibitor (TKI) specifically designed to address resistance in the treatment of non-small cell lung cancer (NSCLC), specifically due to mutations in the ROS1 gene.1 ROS1 mutations are one of the defined oncogenic drives of NSCLC, and the solvent-front mutation ROS1 G2032R is responsible for 50 to 60% of crizotinib-resistant cases.1 Repotrectinib possesses a compact macrocyclic structure that both limits adverse interactions with resistance mutation hotspots and targets mutations in the solvent-front region.2 Although resistance to multiple TKI has been reported, including crizotinib, lorlatinib, taletrectinib, and entrectinib, there has been no reported case of repotrectinib resistance.3

On November 15th, 2023, the FDA approved repotrectinib under the brand name Augtyro for the treatment of locally advanced or metastatic ROS1-Positive NSCLC. This approval is based on favorable results from the TRIDENT-1 study, where the objective response rate was 79% in TKI-naive patients and 38% in TKI-pretreated patients respectively.5

Type
Small Molecule
Groups
Approved, Investigational
Structure
Weight
Average: 355.373
Monoisotopic: 355.144453003
Chemical Formula
C18H18FN5O2
Synonyms
  • (3R,6S,)-45-FLUORO-3,6-DIMETHYL-5-OXA-2,8-DIAZA-1(5,3)-PYRAZOLO(1,5-A)PYRIMIDINA-4(1,2)-BENZENANONAPHAN-9-ONE
  • (7S,13R)-11-Fluoro-7,13-Dimethyl-6,7,13,14-Tetrahydro-1,15-Ethenopyrazolo[4,3-F][1,4,8,10]Benzoxatriazacyclotridecin-4(5H)-One
  • 1,15-ETHENO-1H-PYRAZOLO(4,3-F)(1,4,8,10)BENZOXATRIAZACYCLOTRIDECIN-4(5H)-ONE, 11-FLUORO-6,7,13,14-TETRAHYDRO-7,13-DIMETHYL-, (7S,13R)-
  • Repotrectinib
External IDs
  • TPX-0005

Pharmacology

Indication

Repotrectinib is indicated for the treatment of adult patients with locally advanced or metastatic ROS1-positive non-small cell lung cancer (NSCLC).4

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Treatment ofLocally advanced or metastatic non-small cell lung cancer••••••••••••••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

Fusion proteins that include ROS1 domains can drive tumorigenic potential through the hyperactivation of downstream signaling pathways leading to unconstrained cell proliferation. Repotrectinib exhibited anti-tumor activity in cultured cells expressing ROS1 fusions and mutations including SDC4-ROS1, SDC4-ROS1G2032R, CD74-ROS1, CD74-ROS1G2032R, CD74-ROS1D2033N, and CD74-ROS1L2026M.4

Repotrectinib exposure-response relationships and the time course of pharmacodynamic responses are not fully characterized. Repotrectinib does not cause a mean increase in the QTc interval > 20 milliseconds (ms) at 160 mg QD followed by 160 mg BID, the approved recommended dosage.4

Mechanism of action

Repotrectinib is an inhibitor of proto-oncogene tyrosine-protein kinase ROS1 (ROS1) and of the tropomyosin receptor tyrosine kinases (TRKs) TRKA, TRKB, and TRKC.4

TargetActionsOrganism
AProto-oncogene tyrosine-protein kinase ROS
inhibitor
Humans
AHigh affinity nerve growth factor receptor
inhibitor
Humans
ABDNF/NT-3 growth factors receptor
inhibitor
Humans
ANT-3 growth factor receptor
inhibitor
Humans
Absorption

The geometric mean (CV%) of repotrectinib steady state peak concentration (Cmax,ss) is 713 (32.5%) ng/mL and the area under the time concentration curve (AUC0-24h,ss) is 7210 (40.1%) ng•h/mL following the approved recommended twice daily dosage in patients with cancer. Repotrectinib Cmax and AUC0-inf increases approximately dose-proportional (but less than linear with estimated slopes of 0.78 and 0.70, respectively) over the single dose range of 40 mg to 240 mg (0.25 to 1.5 times the approved recommended dosage). Steady-state PK was time-dependent with an autoinduction of CYP3A4. Steady-state is achieved within 14 days of daily administration of 160 mg.4

The geometric mean (CV%) absolute bioavailability of repotrectinib is 45.7% (19.6%). Peak repotrectinib concentration occurred at approximately 2 to 3 hours post a single oral dose of 40 mg to 240 mg (0.25 to 1.5 times the approved recommended dosage) under fasted conditions.4

No clinically significant differences in repotrectinib pharmacokinetics were observed in patients with cancer following administration of a high-fat meal (approximately 800-1000 calories, 50% fat).4

Volume of distribution

The geometric mean (CV%) apparent volume of distribution (Vz/F) was 432 L (55.9%) in patients with cancer following a single 160 mg oral dose of repotrectinib.4

Protein binding

Repotrectinib binding to plasma protein was 95.4% in vitro. The blood-to-plasma ratio was 0.56 in vitro.4

Metabolism

Repotrectinib is primarily metabolized by CYP3A4 followed by secondary glucuronidation.4

Route of elimination

Following a single oral 160 mg dose of radiolabeled repotrectinib, 4.84% (0.56% as unchanged) was recovered in urine and 88.8% (50.6% unchanged) in feces.4

Half-life

The repotrectinib mean terminal half-life is approximately 50.6 h for patients with cancer following a single dose. The steady-state repotrectinib terminal half-life is approximately 35.4 h for patients with cancer.4

Clearance

The geometric mean (CV%) apparent oral clearance (CL/F) was 15.9 L/h (45.5%) in patients with cancer following a single 160 mg oral dose of repotrectinib.4

Adverse Effects
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Toxicity

Based on literature reports in humans with congenital mutations leading to changes in TRK signaling, findings from animal studies, and its mechanism of action, repotrectinib can cause fetal harm when administered to a pregnant woman. There are no available data on repotrectinib use in pregnant women. Oral administration of repotrectinib to pregnant rats during the period of organogenesis resulted in fetal malformations at doses approximately 0.3 times the recommended dose of 160 mg twice daily based on BSA. Advise pregnant women of the potential risk to a fetus.4

Carcinogenicity studies with repotrectinib were not conducted. Repotrectinib was genotoxic in an in vitro assay in human lymphoblastoid TK6 cells and in an in vivo rat bone marrow micronucleus assay via an aneugenic mechanism of action. Repotrectinib was not mutagenic in vitro in the bacterial reverse mutation (Ames) assay.4

Dedicated fertility studies were not conducted with repotrectinib. There were no effects on male and female reproductive organs observed in general repeat-dose toxicology studies of up to 3 months in duration in rats and monkeys at any dose level tested, which equated to exposures of up to approximately 3 times the human exposure at the 160 mg twice daily dose based on AUC.4

Pathways
Not Available
Pharmacogenomic Effects/ADRs Browse all" title="About SNP Mediated Effects/ADRs" id="snp-actions-info" class="drug-info-popup" href="javascript:void(0);">
Not Available

Interactions

Drug Interactions Learn More" title="About Drug Interactions" id="structured-interactions-info" class="drug-info-popup" href="javascript:void(0);">
This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
DrugInteraction
AbacavirThe metabolism of Abacavir can be decreased when combined with Repotrectinib.
AbametapirThe serum concentration of Repotrectinib can be increased when it is combined with Abametapir.
AbemaciclibThe serum concentration of Abemaciclib can be decreased when it is combined with Repotrectinib.
AbrocitinibThe serum concentration of Repotrectinib can be increased when it is combined with Abrocitinib.
AcalabrutinibThe serum concentration of Acalabrutinib can be decreased when it is combined with Repotrectinib.
Food Interactions
  • Take with or without food. Take repotrectinib at about the same time each day with or without food.

Products

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Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
AugtyroCapsule40 mg/1OralE.R. Squibb & Sons, L.L.C.2023-12-05Not applicableUS flag

Categories

Drug Categories
Classification
Not classified
Affected organisms
Not Available

Chemical Identifiers

UNII
08O3FQ4UNP
CAS number
1802220-02-5
InChI Key
FIKPXCOQUIZNHB-WDEREUQCSA-N
InChI
InChI=1S/C18H18FN5O2/c1-10-8-20-18(25)14-9-21-24-6-5-16(23-17(14)24)22-11(2)13-7-12(19)3-4-15(13)26-10/h3-7,9-11H,8H2,1-2H3,(H,20,25)(H,22,23)/t10-,11+/m0/s1
IUPAC Name
(3R,11S)-6-fluoro-3,11-dimethyl-10-oxa-2,13,17,18,21-pentaazatetracyclo[13.5.2.0^{4,9}.0^{18,22}]docosa-1(21),4,6,8,15(22),16,19-heptaen-14-one
SMILES
C[C@H]1CNC(=O)C2=C3N=C(N[C@H](C)C4=CC(F)=CC=C4O1)C=CN3N=C2

References

General References
  1. Yun MR, Kim DH, Kim SY, Joo HS, Lee YW, Choi HM, Park CW, Heo SG, Kang HN, Lee SS, Schoenfeld AJ, Drilon A, Kang SG, Shim HS, Hong MH, Cui JJ, Kim HR, Cho BC: Repotrectinib Exhibits Potent Antitumor Activity in Treatment-Naive and Solvent-Front-Mutant ROS1-Rearranged Non-Small Cell Lung Cancer. Clin Cancer Res. 2020 Jul 1;26(13):3287-3295. doi: 10.1158/1078-0432.CCR-19-2777. Epub 2020 Apr 8. [Article]
  2. Murray BW, Rogers E, Zhai D, Deng W, Chen X, Sprengeler PA, Zhang X, Graber A, Reich SH, Stopatschinskaja S, Solomon B, Besse B, Drilon A: Molecular Characteristics of Repotrectinib That Enable Potent Inhibition of TRK Fusion Proteins and Resistant Mutations. Mol Cancer Ther. 2021 Dec;20(12):2446-2456. doi: 10.1158/1535-7163.MCT-21-0632. Epub 2021 Oct 8. [Article]
  3. Keddy C, Shinde P, Jones K, Kaech S, Somwar R, Shinde U, Davare MA: Resistance Profile and Structural Modeling of Next-Generation ROS1 Tyrosine Kinase Inhibitors. Mol Cancer Ther. 2022 Feb;21(2):336-346. doi: 10.1158/1535-7163.MCT-21-0395. Epub 2021 Dec 14. [Article]
  4. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
  5. U.S. Food and Drug Administration Approves Augtyro™ (repotrectinib), a Next-Generation Tyrosine Kinase Inhibitor (TKI), for the Treatment of Locally Advanced or Metastatic ROS1-Positive Non-Small Cell Lung Cancer (NSCLC) [Link]
ChemSpider
64853849
BindingDB
374727
RxNav
2670644
ChEMBL
CHEMBL4298138
PDBe Ligand
7GI
Wikipedia
Repotrectinib
PDB Entries
7vkn / 7vko

Clinical Trials

Clinical Trials Learn More" title="About Clinical Trials" id="clinical-trials-info" class="drug-info-popup" href="javascript:void(0);">

Pharmacoeconomics

Manufacturers
Not Available
Packagers
Not Available
Dosage Forms
FormRouteStrength
CapsuleOral40 mg/1
Prices
Not Available
Patents
Patent NumberPediatric ExtensionApprovedExpires (estimated)Region
US11452725No2016-07-242036-07-24US flag
US10294242No2016-07-052036-07-05US flag
US9714258No2015-01-232035-01-23US flag

Properties

State
Solid
Experimental Properties
Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0498 mg/mLALOGPS
logP2.33ALOGPS
logP2.17Chemaxon
logS-3.8ALOGPS
pKa (Strongest Acidic)12.73Chemaxon
pKa (Strongest Basic)0.59Chemaxon
Physiological Charge0Chemaxon
Hydrogen Acceptor Count5Chemaxon
Hydrogen Donor Count2Chemaxon
Polar Surface Area80.55 Å2Chemaxon
Rotatable Bond Count0Chemaxon
Refractivity106.42 m3·mol-1Chemaxon
Polarizability34.85 Å3Chemaxon
Number of Rings4Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon
Predicted ADMET Features
Not Available

Spectra

Mass Spec (NIST)
Not Available
Spectra
SpectrumSpectrum TypeSplash Key
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-0a4i-0009000000-8e86ccc2e0c0c9b8f3e3
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-0udi-0009000000-6cc03be4048e601ec3f2
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0udi-0009000000-143d250914a0ce666d73
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-0a4r-0009000000-4e8d6ff34732072dc3a9
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-014i-0009000000-9dce584a8df85e3d3a57
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-0fg9-0019000000-a2eede4836ad77542a2b
Predicted 1H NMR Spectrum1D NMRNot Applicable
Predicted 13C NMR Spectrum1D NMRNot Applicable
Chromatographic Properties
Collision Cross Sections (CCS)
Not Available

Targets

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insights and accelerate drug research.
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Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Orphan receptor tyrosine kinase (RTK) that plays a role in epithelial cell differentiation and regionalization of the proximal epididymal epithelium. May activate several downstream signaling pathways related to cell differentiation, proliferation, growth and survival including the PI3 kinase-mTOR signaling pathway. Mediates the phosphorylation of PTPN11, an activator of this pathway. May also phosphorylate and activate the transcription factor STAT3 to control anchorage-independent cell growth. Mediates the phosphorylation and the activation of VAV3, a guanine nucleotide exchange factor regulating cell morphology. May activate other downstream signaling proteins including AKT1, MAPK1, MAPK3, IRS1 and PLCG2.
Specific Function
Atp binding
Gene Name
ROS1
Uniprot ID
P08922
Uniprot Name
Proto-oncogene tyrosine-protein kinase ROS
Molecular Weight
263912.88 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Transmembrane receptor protein tyrosine kinase activity
Specific Function
Receptor tyrosine kinase involved in the development and the maturation of the central and peripheral nervous systems through regulation of proliferation, differentiation and survival of sympatheti...
Gene Name
NTRK1
Uniprot ID
P04629
Uniprot Name
High affinity nerve growth factor receptor
Molecular Weight
87496.465 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Protein homodimerization activity
Specific Function
Receptor tyrosine kinase involved in the development and the maturation of the central and the peripheral nervous systems through regulation of neuron survival, proliferation, migration, differenti...
Gene Name
NTRK2
Uniprot ID
Q16620
Uniprot Name
BDNF/NT-3 growth factors receptor
Molecular Weight
91998.175 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Receptor tyrosine kinase involved in nervous system and probably heart development. Upon binding of its ligand NTF3/neurotrophin-3, NTRK3 autophosphorylates and activates different signaling pathways, including the phosphatidylinositol 3-kinase/AKT and the MAPK pathways, that control cell survival and differentiation.
Specific Function
Atp binding
Gene Name
NTRK3
Uniprot ID
Q16288
Uniprot Name
NT-3 growth factor receptor
Molecular Weight
94427.47 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]

Enzymes

Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inducer
General Function
Steroid hydroxylase activity
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
Gene Name
CYP2B6
Uniprot ID
P20813
Uniprot Name
Cytochrome P450 2B6
Molecular Weight
56277.81 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inducer
General Function
Steroid hydroxylase activity
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
Gene Name
CYP2C8
Uniprot ID
P10632
Uniprot Name
Cytochrome P450 2C8
Molecular Weight
55824.275 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inducer
General Function
Steroid hydroxylase activity
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
Gene Name
CYP2C9
Uniprot ID
P11712
Uniprot Name
Cytochrome P450 2C9
Molecular Weight
55627.365 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inducer
General Function
Steroid hydroxylase activity
Specific Function
Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and im...
Gene Name
CYP2C19
Uniprot ID
P33261
Uniprot Name
Cytochrome P450 2C19
Molecular Weight
55930.545 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
Inhibitor
Inducer
General Function
Vitamin d3 25-hydroxylase activity
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation react...
Gene Name
CYP3A4
Uniprot ID
P08684
Uniprot Name
Cytochrome P450 3A4
Molecular Weight
57342.67 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inhibitor
General Function
Oxygen binding
Specific Function
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
Gene Name
CYP3A5
Uniprot ID
P20815
Uniprot Name
Cytochrome P450 3A5
Molecular Weight
57108.065 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inhibitor
General Function
Steroid binding
Specific Function
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the...
Gene Name
UGT1A1
Uniprot ID
P22309
Uniprot Name
UDP-glucuronosyltransferase 1-1
Molecular Weight
59590.91 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]

Transporters

Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inhibitor
General Function
Xenobiotic-transporting atpase activity
Specific Function
High-capacity urate exporter functioning in both renal and extrarenal urate excretion. Plays a role in porphyrin homeostasis as it is able to mediates the export of protoporhyrin IX (PPIX) both fro...
Gene Name
ABCG2
Uniprot ID
Q9UNQ0
Uniprot Name
ATP-binding cassette sub-family G member 2
Molecular Weight
72313.47 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inhibitor
General Function
Drug transmembrane transporter activity
Specific Function
Solute transporter for tetraethylammonium (TEA), 1-methyl-4-phenylpyridinium (MPP), cimetidine, N-methylnicotinamide, metformin, creatinine, guanidine, procainamide, topotecan, estrone sulfate, acy...
Gene Name
SLC47A2
Uniprot ID
Q86VL8
Uniprot Name
Multidrug and toxin extrusion protein 2
Molecular Weight
65083.915 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
Inhibitor
General Function
Xenobiotic-transporting atpase activity
Specific Function
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
Gene Name
ABCB1
Uniprot ID
P08183
Uniprot Name
Multidrug resistance protein 1
Molecular Weight
141477.255 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]
Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Inhibitor
General Function
Sodium-independent organic anion transmembrane transporter activity
Specific Function
Mediates the Na(+)-independent uptake of organic anions such as pravastatin, taurocholate, methotrexate, dehydroepiandrosterone sulfate, 17-beta-glucuronosyl estradiol, estrone sulfate, prostagland...
Gene Name
SLCO1B1
Uniprot ID
Q9Y6L6
Uniprot Name
Solute carrier organic anion transporter family member 1B1
Molecular Weight
76447.99 Da
References
  1. FDA Approved Drug Products: AUGTYRO™ (repotrectinib) capsules, for oral use (November 2023) [Link]

Drug created at July 15, 2022 16:08 / Updated at January 10, 2024 06:22