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Treprostinil
Also known as: 81846-19-7, Remodulin, Uniprost, Rumodolin, Orenitram, Tyvaso
Molecular Formula
C23H34O5
Molecular Weight
390.5  g/mol
InChI Key
PAJMKGZZBBTTOY-ZFORQUDYSA-N
FDA UNII
RUM6K67ESG

Treprostinil is a synthetic analogue of prostacyclin, used to treat pulmonary hypertension.
Treprostinil is a Prostacycline Vasodilator. The physiologic effect of treprostinil is by means of Vasodilation.
1 2D Structure

Treprostinil

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
2-[[(1R,2R,3aS,9aS)-2-hydroxy-1-[(3S)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1H-cyclopenta[g]naphthalen-5-yl]oxy]acetic acid
2.1.2 InChI
InChI=1S/C23H34O5/c1-2-3-4-7-17(24)9-10-18-19-11-15-6-5-8-22(28-14-23(26)27)20(15)12-16(19)13-21(18)25/h5-6,8,16-19,21,24-25H,2-4,7,9-14H2,1H3,(H,26,27)/t16-,17-,18+,19-,21+/m0/s1
2.1.3 InChI Key
PAJMKGZZBBTTOY-ZFORQUDYSA-N
2.1.4 Canonical SMILES
CCCCCC(CCC1C(CC2C1CC3=C(C2)C(=CC=C3)OCC(=O)O)O)O
2.1.5 Isomeric SMILES
CCCCC[C@@H](CC[C@H]1[C@@H](C[C@H]2[C@@H]1CC3=C(C2)C(=CC=C3)OCC(=O)O)O)O
2.2 Other Identifiers
2.2.1 UNII
RUM6K67ESG
2.3 Synonyms
2.3.1 MeSH Synonyms

1. ((1r,2r,3as,9as)-2-hydroxy-1-((3s)-3-hydroxyoctyl)-2,3,3a,4,9,9a-hexahydro-1h-cylopent(b)naphthalen-5-yl)oxy)acetate

2. Orenitram

3. Remodulin

4. Trepostinil Sodium

5. Treprostinil Diethanolamine

6. Treprostinil Diolamin

7. Treprostinil Diolamine

8. Treprostinil Sodium

9. Ut-15

10. Ut-15c

2.3.2 Depositor-Supplied Synonyms

1. 81846-19-7

2. Remodulin

3. Uniprost

4. Rumodolin

5. Orenitram

6. Tyvaso

7. Lrx-15

8. Ut-15

9. 15au81

10. Treprostinil Free Acid

11. Rum6k67esg

12. 2-(((1r,2r,3as,9as)-2-hydroxy-1-((s)-3-hydroxyoctyl)-2,3,3a,4,9,9a-hexahydro-1h-cyclopenta[b]naphthalen-5-yl)oxy)acetic Acid

13. Chebi:50861

14. 81846-19-7 (free Acid)

15. ((1r,2r,3as,9as)-2-hydroxy-1-((3s)-3-hydroxyoctyl)-2,3,3a,4,9,9a-hexahydro-1h-cylopent(b)naphthalen-5-yl)oxy)acetate

16. 2-[[(1r,2r,3as,9as)-2-hydroxy-1-[(3s)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1h-cyclopenta[g]naphthalen-5-yl]oxy]acetic Acid

17. 289480-64-4

18. 15-au-81

19. L-606

20. Treprostinilo

21. Treprostinilum

22. Lrx 15

23. Treprostinil [usan:inn]

24. Remodulin (tn)

25. Unii-rum6k67esg

26. U 62840

27. Tresprostinil

28. Trevyent

29. U-62,840

30. Treprostinil [mi]

31. Treprostinil [inn]

32. Treprostinil [jan]

33. Treprostinil [usan]

34. Treprostinil [vandf]

35. Treprostinil Pound>>ut-15

36. Treprostinil [mart.]

37. Treprostinil [who-dd]

38. 15au

39. Gtpl5820

40. Schembl4349618

41. Treprostinil (jan/usan/inn)

42. Chembl1237119

43. Lrx -15

44. Dtxsid901021654

45. Hms3648g07

46. Treprostinil [orange Book]

47. Amy22230

48. Bcp10253

49. Ex-a1414

50. Zinc3800475

51. Mfcd00888847

52. Akos027470173

53. Cs-7872

54. Db00374

55. Ncgc00343944-03

56. ({(1r,2r,3as,9as)-2-hydroxy-1-[(3s)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1h-cyclopenta[b]naphthalen-5-yl}oxy)acetic Acid

57. 2-[[(1r,2r,3as,9as)-2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-[(3s)-3-hydroxyoctyl]-1h-benz[f]inden-5-yl]oxy]acetic Acid

58. Ac-30207

59. As-56364

60. L606

61. Hy-100441

62. D06213

63. Sr-01000946210

64. Q3495231

65. Sr-01000946210-1

66. Brd-k19706299-001-01-4

67. [[(1r,2r,3as,9as)-2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-[(s)-3-hydroxyoctyl]-1h-benzo[f]indene-5-yl]oxy]acetic Acid

68. [[(1r,2r,3as,9as)-2,3,4,9,9a-hexahydro-2-hydroxy-1-[(3s)-3-hydroxyoctyl]-1h-benz[f]inden-5-yl]oxy]acetic Acid

69. 2-((1r,2r,3as,9as)-2-hydroxy-1-((s)-3-hydroxyoctyl)-2,3,3a,4,9,9a-hexahydro-1h-cyclopenta[b]naphthalen-5-yloxy)acetic Acid

70. 2-[[(1r,2r,3as,9as)-2,3,4,9,9a-hexahydro-2-hydroxy-1-[(3s)-3-hydroxyoctyl]-1h-benz[f]inden-5-yl]oxy]-acetic Acid

71. 2-[[(2r,3r,3as,9as)-2-hydroxy-3-[(3s)-3-hydroxyoctyl]-2,3,3a,4,9,9a-hexahydro-1h-cyclopenta[g]naphthalen-8-yl]oxy]acetic Acid

72. 2-{[(1r,2r,3as,9as)-2-hydroxy-1-[(3s)-3-hydroxyoctyl]-1h,2h,3h,3ah,4h,9h,9ah-cyclopenta[b]naphthalen-5-yl]oxy}acetic Acid

73. Acetic Acid, (((1r,2r,3as,9as)-2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-((3s)-3-hydroxyoctyl)-1h-benz(f)inden-5-yl)oxy)-

74. Acetic Acid, ((2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-(3-hydroxyoctyl)-1h-benz(f)inden-5-yl)oxy)-, (1r-(1alpha(s*),2beta,3aalpha,9aalpha))-

75. Acetic Acid,(((1r,2r,3as,9as)-2,3,3a,4,9,9a-hexahydro-2-hydroxy-1-((3s)-3-hydroxyoctyl)-1h-benz(f)inden-5-yl)oxy)-

2.4 Create Date
2006-07-28
3 Chemical and Physical Properties
Molecular Weight 390.5 g/mol
Molecular Formula C23H34O5
XLogP34.5
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count5
Rotatable Bond Count10
Exact Mass390.24062418 g/mol
Monoisotopic Mass390.24062418 g/mol
Topological Polar Surface Area87 Ų
Heavy Atom Count28
Formal Charge0
Complexity495
Isotope Atom Count0
Defined Atom Stereocenter Count5
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count1
4 Drug and Medication Information
4.1 Drug Information
1 of 4  
Drug NameRemodulin
PubMed HealthTreprostinil
Drug ClassesAntihypertensive, Cardiovascular Agent, Platelet Aggregation Inhibitor, Vasodilator
Drug LabelRemodulin (treprostinil) Injection is a sterile solution of treprostinil formulated for subcutaneous or intravenous administration. Remodulin is supplied in 20 mL multidose vials in four strengths, containing 20 mg, 50 mg, 100 mg, or 200 mg (1 mg/mL,...
Active IngredientTreprostinil
Dosage FormInjectable
RouteIv (infusion), subcutaneous
Strength1mg/ml; 2.5mg/ml; 10mg/ml; 5mg/ml
Market StatusPrescription
CompanyUnited Therap

2 of 4  
Drug NameTyvaso
PubMed HealthTreprostinil (By breathing)
Drug ClassesVasodilator
Drug LabelTyvaso is a sterile formulation of treprostinil intended for administration by oral inhalation using the Tyvaso Inhalation System. Tyvaso is supplied in 2.9 mL low density polyethylene (LDPE) ampules, containing 1.74 mg treprostinil (0.6 mg/mL). Each...
Active IngredientTreprostinil
Dosage FormSolution
RouteInhalation
Strengtheq 0.6mg base/ml
Market StatusPrescription
CompanyUnited Therap

3 of 4  
Drug NameRemodulin
PubMed HealthTreprostinil
Drug ClassesAntihypertensive, Cardiovascular Agent, Platelet Aggregation Inhibitor, Vasodilator
Drug LabelRemodulin (treprostinil) Injection is a sterile solution of treprostinil formulated for subcutaneous or intravenous administration. Remodulin is supplied in 20 mL multidose vials in four strengths, containing 20 mg, 50 mg, 100 mg, or 200 mg (1 mg/mL,...
Active IngredientTreprostinil
Dosage FormInjectable
RouteIv (infusion), subcutaneous
Strength1mg/ml; 2.5mg/ml; 10mg/ml; 5mg/ml
Market StatusPrescription
CompanyUnited Therap

4 of 4  
Drug NameTyvaso
PubMed HealthTreprostinil (By breathing)
Drug ClassesVasodilator
Drug LabelTyvaso is a sterile formulation of treprostinil intended for administration by oral inhalation using the Tyvaso Inhalation System. Tyvaso is supplied in 2.9 mL low density polyethylene (LDPE) ampules, containing 1.74 mg treprostinil (0.6 mg/mL). Each...
Active IngredientTreprostinil
Dosage FormSolution
RouteInhalation
Strengtheq 0.6mg base/ml
Market StatusPrescription
CompanyUnited Therap

4.2 Drug Indication

For use as a continuous subcutaneous infusion or intravenous infusion (for those not able to tolerate a subcutaneous infusion) for the treatment of pulmonary arterial hypertension in patients with NYHA Class II-IV symptoms to diminish symptoms associated with exercise.


FDA Label


Treatment of adult patients with WHO Functional Class (FC) III or IV and:

- inoperable chronic thromboembolic pulmonary hypertension (CTEPH), or

- persistent or recurrent CTEPH after surgical treatment

to improve exercise capacity.


Treatment of pulmonary arterial hypertension


5 Pharmacology and Biochemistry
5.1 Pharmacology

Pulmonary arterial hypertension (PAH) is a disease in which blood pressure is abnormally high in the arteries between the heart and lungs. PAH is characterized by symptoms of shortness of breath during physical exertion. The condition can ultimately lead to heart failure. Treprostinil is a potent oral antiplatelet agent. The major pharmacologic actions of treprostinil are direct vasodilation of pulmonary and systemic arterial vascular beds and inhibition of platelet aggregation. In animals, the vasodilatory effects reduce right and left ventricular afterload and increase cardiac output and stroke volume. Other studies have shown that treprostinil causes a dose-related negative inotropic and lusitropic effect. No major effects on cardiac conduction have been observed.


5.2 MeSH Pharmacological Classification

Antihypertensive Agents

Drugs used in the treatment of acute or chronic vascular HYPERTENSION regardless of pharmacological mechanism. Among the antihypertensive agents are DIURETICS; (especially DIURETICS, THIAZIDE); ADRENERGIC BETA-ANTAGONISTS; ADRENERGIC ALPHA-ANTAGONISTS; ANGIOTENSIN-CONVERTING ENZYME INHIBITORS; CALCIUM CHANNEL BLOCKERS; GANGLIONIC BLOCKERS; and VASODILATOR AGENTS. (See all compounds classified as Antihypertensive Agents.)


5.3 FDA Pharmacological Classification
5.3.1 Active Moiety
TREPROSTINIL
5.3.2 FDA UNII
RUM6K67ESG
5.3.3 Pharmacological Classes
Prostaglandins I [CS]; Vasodilation [PE]; Prostacycline Vasodilator [EPC]
5.4 ATC Code

B01AC21


B - Blood and blood forming organs

B01 - Antithrombotic agents

B01A - Antithrombotic agents

B01AC - Platelet aggregation inhibitors excl. heparin

B01AC21 - Treprostinil


5.5 Absorption, Distribution and Excretion

Absorption

Relatively rapid and complete after subcutaneous infusion, with an absolute bioavailability approximately 100%. In patients with mild (n=4) or moderate (n=5) hepatic insufficiency and portopulmonary hypertension following a subcutaneous dose of 10 ng per kg of body weight per min for 150 mins the AUC 0-∞ was increased 3-fold and 5-fold respectively.


Volume of Distribution

14 L/70 kg


5.6 Metabolism/Metabolites

Substantially metabolized by the liver, but the precise enzymes responsible are unknown. Five metabolites have been described (HU1 through HU5) however, the biological activity and metabolic fate of these are unknown. The chemical structure of HU1 is unknown. The metabolite HU5 is the glucuronide conjugate of treprostinil. The other metabolites are formed by oxidation of the 3-hydroxyoctyl side chain (HU2) and subsequent additional oxidation (HU3) or dehydration (HU4). Study results of in vitro human hepatic cytochrome P450 demonstrates that treprostinil does not inhibit CYP-1A2, 2C9, 2C19, 2D6, 2E1, or 3A. There have been no studies that evaluate the potential of treprostinil to induce these enzymes.


5.7 Biological Half-Life

Terminal elimination half-life is approximately 2 to 4 hours. Plasma half-life is 34 and 85 minutes for intravenous and subcutaneous infusion of the drug, respectively.


5.8 Mechanism of Action

The major pharmacological actions of treprostinil are direct vasodilation of pulmonary and systemic arterial vascular beds and inhibition of platelet aggregation. In addition to treprostinil's direct vasodilatory effects, it also inhibits inflammatory cytokine. As a synthetic analogue of prostacyclin, it binds to the prostacyclin receptor, which subsequently induces the aforementioned downstream effects.


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