Chemical Component Summary

NameRucaparib
Identifiersn/a
FormulaC19 H18 F N3 O
Molecular Weight323.36
TypeNON-POLYMER
Isomeric SMILESCNCc1ccc(cc1)c2c3c4c(cc(cc4[nH]2)F)C(=O)NCC3
InChIInChI=1S/C19H18FN3O/c1-21-10-11-2-4-12(5-3-11)18-14-6-7-22-19(24)15-8-13(20)9-16(23-18)17(14)15/h2-5,8-9,21,23H,6-7,10H2,1H3,(H,22,24)
InChIKeyHMABYWSNWIZPAG-UHFFFAOYSA-N

Chemical Details

Formal Charge0
Atom Count42
Chiral Atom Count0
Bond Count45
Aromatic Bond Count16

Drug Info: DrugBank

DrugBank IDDB12332 
NameRucaparib
Groups
  • approved
  • investigational
DescriptionRucaparib is a potent mammalian poly(ADP-ribose) polymerase (PARP) 1, 2 and 3 inhibitor with anticancer properties. PPAR is an enzyme that plays an essential role in DNA repair by activating response pathways and facilitating repair [A18745], and defects in these repair mechanisms have been demonstrated in various malignancies, including cancer. Regulation of repair pathways is critical in promoting necessary cell death. BRCA genes are tumor suppressor genes mediate several cellular process including DNA replication, transcription regulation, cell cycle checkpoints, apoptosis, chromatin structuring and homologous recombination (HR). Homologous recombination deficiency (HRD), along with PPAR inhibition, is a vulnerability that enhances the cell death pathway when the single mutations alone would permit viability. Ovarian cancer commonly possesses defects in DNA repair pathways such as HRD due to BRCA mutations or otherwise. There are three main types of ovarian cancer: epithelial (90%), germ cell (5%) and sex cord stromal cell (5%). Epithelial ovarian, being the most common, fifth leading cause of cancer-related deaths in women in the United States. Advanced ovarian cancer particularly poses challenges due to reduced therapeutic response rates from standard platinum-based chemotherapy and overall survival rates. Rucaparib has shown to induce cytotoxicity in tumor cell lines with deficiencies in BRCA1/2 and other DNA repair genes [FDA Label]. Of all the BRCA1/2 mutations in ovarian cancer, most are due to germline mutations (18%), and approximately 7% represent somatic mutations acquired within the tumor [A31354]. The indication of rucaparib as an oral monotherapy in patients with deleterious BRCA mutation (germline and/or somatic) associated advanced ovarian cancer was granted accelerated approval in 2016 for selected patients who have previously received greater than two lines of platinum-based therapy. It is currently marketed in the US under the brand name Rubraca that contains rucaparib camsylate as the active ingredient. The identification of patients who are eligible for rucaparib therapy is performed via *in vitro* diagnostic tests to detect the presence of a deleterious BRCA mutation (germline and/or somatic). The FDA-approved test qualitatively detects sequence alterations in BRCA1 and BRCA2 (BRCA1/2) genes. More information can be found on the FDA Website [L1047]. While rucaparib is indicated for deleterious BRCA mutation (germline and/or somatic)-associated advanced ovarian cancer, there is evidence that its antitumor activity is also clinically effective against ovarian tumors with high homologous recombination deficiency (HRD) loss of heterozygosity (LOH) [A31354].
Synonyms
  • Rucaparib phosphate
  • Rucaparib
  • Rucaparib camsylate
Brand NamesRubraca
IndicationIndicated as monotherapy for the treatment of patients with deleterious BRCA mutation (germline and/or somatic) associated advanced ovarian cancer who have been treated with two or more chemotherapies. Select patients for therapy based on an FDA-approved companion diagnostic for rucaparib.
Categories
  • Antineoplastic Agents
  • Antineoplastic and Immunomodulating Agents
  • BCRP/ABCG2 Inhibitors
  • BCRP/ABCG2 Substrates
  • Cytochrome P-450 CYP1A2 Inducers
ATC-CodeL01XX55
CAS number283173-50-2

Drug Targets

NameTarget SequencePharmacological ActionActions
Poly [ADP-ribose] polymerase 1MAESSDKLYRVEYAKSGRASCKKCSESIPKDSLRMAIMVQSPMFDGKVPH...unknownantagonist
Poly [ADP-ribose] polymerase 2MAARRRRSTGGGRARALNESKRVNNGNTAPEDSSPAKKTRRCQRQESKKM...unknownantagonist
Poly [ADP-ribose] polymerase 3MAPKPKPWVQTEGPEKKKGRQAGREEDPFRSTAEALKAIPAEKRIIRVDP...unknownantagonist
Cytochrome P450 2D6MGLEALVPLAVIVAIFLLLVDLMHRRQRWAARYPPGPLPLPGLGNLLHVD...unknownsubstrate,inhibitor
Cytochrome P450 1A2MALSQSVPFSATELLLASAIFCLVFWVLKGLRPRVPKGLKSPPEPWGWPL...unknownsubstrate,inhibitor,inducer
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Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682

Related Resource References

Resource NameReference
PubChem9931954
ChEBICHEBI:94311
ChEBICHEBI:134689
ChEMBLCHEMBL1173055
PharosCHEMBL1173055