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Details

Stereochemistry ACHIRAL
Molecular Formula C22H24FN5O4
Molecular Weight 441.4555
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of SUPINOXIN

SMILES

COC1=CC(OC)=CC(=C1)N2CCN(CC2)C(=O)NC3=C(OC)N=C4C=CC(F)=CC4=N3

InChI

InChIKey=KAKPGJJRYRYSTP-UHFFFAOYSA-N
InChI=1S/C22H24FN5O4/c1-30-16-11-15(12-17(13-16)31-2)27-6-8-28(9-7-27)22(29)26-20-21(32-3)25-18-5-4-14(23)10-19(18)24-20/h4-5,10-13H,6-9H2,1-3H3,(H,24,26,29)

HIDE SMILES / InChI

Molecular Formula C22H24FN5O4
Molecular Weight 441.4555
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: P17844
Gene ID: 1655.0
Gene Symbol: DDX5
Target Organism: Homo sapiens (Human)
61.0 nM [IC50]
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
252 μg/L
100 mg single, oral
dose: 100 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
226 μg/L
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
364 μg/L
225 mg single, oral
dose: 225 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
385 μg/L
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
660 μg/L
425 mg single, oral
dose: 425 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
707 μg/L
575 mg single, oral
dose: 575 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
571 μg/L
775 mg single, oral
dose: 775 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
394 μg/L
250 mg single, oral
dose: 250 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
403 μg/L
250 mg 3 times / week multiple, oral
dose: 250 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
288 μg/L
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
301 μg/L
300 mg 3 times / week multiple, oral
dose: 300 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
347 μg/L
150 mg 5 times / week multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
337 μg/L
200 mg single, oral
dose: 200 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
440 μg/L
200 mg 5 times / week multiple, oral
dose: 200 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
498 μg/L
300.02 mg 5 times / week multiple, oral
dose: 300.02 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
2341 μg × h/L
100 mg single, oral
dose: 100 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
3280 μg × h/L
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
4312 μg × h/L
225 mg single, oral
dose: 225 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
5847 μg × h/L
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
14673 μg × h/L
425 mg single, oral
dose: 425 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
10098 μg × h/L
575 mg single, oral
dose: 575 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
6570 μg × h/L
775 mg single, oral
dose: 775 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
5211 μg × h/L
250 mg single, oral
dose: 250 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
7774 μg × h/L
250 mg 3 times / week multiple, oral
dose: 250 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
4555 μg × h/L
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
4143 μg × h/L
300 mg 3 times / week multiple, oral
dose: 300 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
3721 μg × h/L
150 mg 5 times / week multiple, oral
dose: 150 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
2752 μg × h/L
200 mg single, oral
dose: 200 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
4034 μg × h/L
200 mg 5 times / week multiple, oral
dose: 200 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
4359 μg × h/L
300.02 mg 5 times / week multiple, oral
dose: 300.02 mg
route of administration: Oral
experiment type: MULTIPLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
11.4 h
150 mg single, oral
dose: 150 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
12 h
225 mg single, oral
dose: 225 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
16 h
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
14 h
250 mg single, oral
dose: 250 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
10.3 h
300 mg single, oral
dose: 300 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
8.5 h
200 mg single, oral
dose: 200 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
SUPINOXIN plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: UNKNOWN
food status: UNKNOWN
Substance Class Chemical
Created
by admin
on Tue Apr 01 16:39:11 GMT 2025
Edited
by admin
on Tue Apr 01 16:39:11 GMT 2025
Record UNII
ZU8OM8V5WF
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
SUPINOXIN
Common Name English
RX-5902
Preferred Name English
1-(3,5-DIMETHOXYPHENYL)-4-((6-FLUORO-2-METHOXYQUINOXALIN-3-YL)AMINOCARBONYL) PIPERAZINE
Systematic Name English
P-P68 INHIBITOR RX-5902
Common Name English
4-(3,5-DIMETHOXYPHENYL)-N-(7-FLUORO-3-METHOXY-QUINOXALIN-2-YL)PIPERAZINE-1-CARBOXAMIDE
Systematic Name English
1-PIPERAZINECARBOXAMIDE, 4-(3,5-DIMETHOXYPHENYL)-N-(7-FLUORO-3-METHOXY-2-QUINOXALINYL)-
Systematic Name English
Code System Code Type Description
NCI_THESAURUS
C113293
Created by admin on Tue Apr 01 16:39:11 GMT 2025 , Edited by admin on Tue Apr 01 16:39:11 GMT 2025
PRIMARY NCIT
CAS
888478-45-3
Created by admin on Tue Apr 01 16:39:11 GMT 2025 , Edited by admin on Tue Apr 01 16:39:11 GMT 2025
PRIMARY
PUBCHEM
11619093
Created by admin on Tue Apr 01 16:39:11 GMT 2025 , Edited by admin on Tue Apr 01 16:39:11 GMT 2025
PRIMARY
FDA UNII
ZU8OM8V5WF
Created by admin on Tue Apr 01 16:39:11 GMT 2025 , Edited by admin on Tue Apr 01 16:39:11 GMT 2025
PRIMARY
MANUFACTURER PRODUCT INFORMATION
SUPINOXIN
Created by admin on Tue Apr 01 16:39:11 GMT 2025 , Edited by admin on Tue Apr 01 16:39:11 GMT 2025
PRIMARY Description: Supinoxin, also known as RX-5902, is orally bioavailable small molecule inhibitor of phosphorylated-p68 RNA helicase (P-p68), with potential anti-proliferative and antineoplastic activity. Upon oral administration, P-p68 inhibitor RX-5902 may both inhibit the activity of the anti-apoptotic B-cell lymphoma 2 (Bcl-2) protein and facilitate the induction of cyclin-dependent kinase inhibitor 1 (p21). This may prevent G2/M cell cycle progression and lead to growth inhibition in tumor cells. P-p68 is overexpressed in various types of solid tumors but absent in normal tissues, and plays a role in tumor progression and metastasis. (last updated: 5/1/2016)
Related Record Type Details
ACTIVE MOIETY
Supinoxin (RX-5902) is an orally administered, potential first-in-class, small molecule inhibitor of a unique cancer protein phosphorylated-p68 (P-p68) which is selectively overexpressed in cancer cells and absent in normal tissue. P-p68 is believed to increase the activity of multiple cancer related genes including, cyclin D1, c-jun and c-myc, and play a prominent role in tumor progression and metastasis. Over-expression of P-p68 has been observed in many solid tumors, including, melanoma, colon, ovarian and lung tumors.
ACTIVE MOIETY
DEAD box RNA helicase DDX5/p68, and its phosphorylated form in particular, may play several important roles in cancer by means of cell transformation, epithelial mesenchymal transition (EMT), and cell migration, deeming it a promising target for novel anti-cancer therapeutics. We have previously shown that Supinoxin (RX-5902) interacts with phosphorylated p68 on Tyr593, interfering with the phosphorylated p68-.BETA.-catenin signaling pathway. Supinoxin also inhibits motility of MDA-MB231 breast cancer cell lines and could potentially prevent metastasis in cancer. In the MiaPaCa-2 model, at 50 and 70 mg/kg daily (oral, 5 days on/2 days off) for 3 weeks, both doses delayed tumor growth significantly (83% and 339% P < 0.001). All animals in the high dose showed complete regression (CR) and completing the study as tumor free survival (TFS-Day 65)one animal showed CR and TFS in the lower dose. Gemcitabine (120 mg/kg ip Q3D for 4 weeks) resulted in TGD of 71% (P < 0.001), with no CRs. Supinoxin did not result in a reduction in body weight gain, treatment related deaths, or clinical observations in this tumor model. These data support the potential therapeutic activity of Supinoxin in pancreatic cancer. A Phase 1 study of Supinoxin on relapse/refractory solid tumors is ongoing (NCT02003092).
ACTIVE MOIETY
Class: Antineoplastic, Piperazine, Quinoxaline, Small molecule; Mechanism of Action: RNA helicase inhibitor; Highest Development Phases: Phase I for Solid tumours, Preclinical for Breast cancer, Pancreatic cancer, Renal cancer; Most Recent Events: 06 Jun 2016 Rexahn Pharmaceuticals plans a phase Ib/IIa trial for Breast cancer and Ovarian cancer in USA, 24 Mar 2016 Pharmacodynamics data from a preclinical studies in Breast cancer released by Rexahn Pharmaceuticals, 25 Jan 2016 Pharmacodynamics data from a preclinical trial in Pancreatic cancer presented at the 51st Annual Meeting of the American Society for Clinical Oncology Gastrointestinal Cancers symposium (ASCO-GCS-2016)