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Chemistry

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Also known as: Cr845 acetate, Cr-845 acetate, 1024829-44-4, Unii-0p70ar5byb, 0p70ar5byb, Korsuva
Molecular Formula
C38H57N7O8
Molecular Weight
739.9  g/mol
InChI Key
MZWHRPKAHCWTOI-KGURMGBCSA-N
FDA UNII
0P70AR5BYB

Difelikefalin Acetate
DIFELIKEFALIN ACETATE is a Protein drug with a maximum clinical trial phase of IV (across all indications) that was first approved in 2021 and is indicated for chronic kidney disease and pruritus.
1 2D Structure

Difelikefalin Acetate

2 Identification
2.1 Computed Descriptors
2.1.1 IUPAC Name
acetic acid;4-amino-1-[(2R)-6-amino-2-[[(2R)-2-[[(2R)-2-[[(2R)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid
2.1.2 InChI
InChI=1S/C36H53N7O6.C2H4O2/c1-24(2)21-29(32(45)40-28(15-9-10-18-37)34(47)43-19-16-36(39,17-20-43)35(48)49)42-33(46)30(23-26-13-7-4-8-14-26)41-31(44)27(38)22-25-11-5-3-6-12-25;1-2(3)4/h3-8,11-14,24,27-30H,9-10,15-23,37-39H2,1-2H3,(H,40,45)(H,41,44)(H,42,46)(H,48,49);1H3,(H,3,4)/t27-,28-,29-,30-;/m1./s1
2.1.3 InChI Key
MZWHRPKAHCWTOI-KGURMGBCSA-N
2.2 Other Identifiers
2.2.1 UNII
0P70AR5BYB
2.3 Synonyms
2.3.1 MeSH Synonyms

1. 4-piperidinecarboxylic Acid, 4-amino-1-((2r)-6-amino-2-(((2r)-2-(((2r)-2-(((2r)-2-amino-1-oxo-3-phenylpropyl)amino)-1-oxo-3-phenylpropyl)amino)-4-methyl-1-oxopentyl)amino)-1-oxohexyl)-

2. Difelikefalin

3. Korsuva

4. N-((2r)-1-(((2r)-1-(((2r)-6-amino-1-(4-amino-4-carboxy-1-piperidinyl)-1-oxo-2-hexanyl)amino)-4-methyl-1-oxo-2-pentanyl)amino)-1-oxo-3-phenyl-2-propanyl)-d-phenylalaninamide

2.3.2 Depositor-Supplied Synonyms

1. Cr845 Acetate

2. Cr-845 Acetate

3. 1024829-44-4

4. Unii-0p70ar5byb

5. 0p70ar5byb

6. Korsuva

7. 4-amino-1-(d-phenylalanyl-d-phenylalanyl-d-leucyl-d-lysl)-piperidine-4-carboxylic Acid, Acetate Salt

8. Acetic Acid;4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic Acid

9. Difelikefalin (acetate)

10. Chembl5315123

11. Hy-17609c

12. 1024828-77-0 , Difelikefalin

13. Difelikefalin Acetate [who-dd]

14. Ac-38232

15. Ts-10624

16. Difelikefalin Acetate [orange Book]

17. 4-amino-1-(d-phenylalanyl-d-phenylalanyl-d-leucyl-d-lysyl)piperidine-4-carboxylic Acid Acetate

18. N1-(d-phenylalanyl-d-phenylalanyl-d-leucyl-d-lysyl)-4-amino-4-piperidinecarboxylic Acid Acetate (1:)

19. N1-(d-phenylalanyl-d-phenylalanyl-d-leucyl-d-lysyl)-4-amino-4-piperidinecarboxylic Acid Acetate (1:?)

2.4 Create Date
2015-09-11
3 Chemical and Physical Properties
Molecular Weight 739.9 g/mol
Molecular Formula C38H57N7O8
Hydrogen Bond Donor Count8
Hydrogen Bond Acceptor Count11
Rotatable Bond Count18
Exact Mass Da
Monoisotopic Mass Da
Topological Polar Surface Area260
Heavy Atom Count53
Formal Charge0
Complexity1110
Isotope Atom Count0
Defined Atom Stereocenter Count4
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently Bonded Unit Count2

API SUPPLIERS

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Neuland Laboratories

India

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Vtides Life Sciences

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Virtual BoothVtides Life Sciences: Innovating peptide design and synthesis for advanced, targeted therapies across key disease areas.

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Chunghwa Chemical Synthesis & Biot...

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Omgene Life Sciences Pvt. Ltd

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ALP Pharm

China

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ALP Pharm

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MSN Laboratories

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MSN Laboratories

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Wisdom Pharmaceutical

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Cipla

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PolyPeptide Group

Switzerland

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PolyPeptide Group

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Drugs in Development

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Details:

Korsuva (difelikefalin) is a kappa opioid receptor agonists. Its oral formulation is under development for the treatment of moderate-to-severe pruritus in adult patients with notalgia paresthetica.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Korsuva

Study Phase: Phase II/ Phase IIIProduct Type: Peptide

Sponsor: Inapplicable

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable December 06, 2024

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01

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : Korsuva (difelikefalin) is a kappa opioid receptor agonists. Its oral formulation is under development for the treatment of moderate-to-severe pruritus in adult patients with notalgia paresthetica.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Inapplicable

December 06, 2024

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Details:

CR845 (difelikefalin) is a kappa opioid receptor agonists. Its oral formulation is under clinical development for the treatment of moderate-to-severe pruritus in patients with Atopic Dermatitis.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Korsuva

Study Phase: Phase IIIProduct Type: Peptide

Sponsor: Inapplicable

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable December 18, 2023

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02

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : CR845 (difelikefalin) is a kappa opioid receptor agonists. Its oral formulation is under clinical development for the treatment of moderate-to-severe pruritus in patients with Atopic Dermatitis.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Inapplicable

December 18, 2023

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Details:

Korsuva (difelikefalin) injection is a kappa opioid receptor agonist indicated for the treatment of moderate-to-severe pruritus in hemodialysis patients.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Korsuva

Study Phase: Approved FDFProduct Type: Peptide

Sponsor: Maruishi Pharmaceutical

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable September 25, 2023

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03

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : Korsuva (difelikefalin) injection is a kappa opioid receptor agonist indicated for the treatment of moderate-to-severe pruritus in hemodialysis patients.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Inapplicable

September 25, 2023

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Details:

CR845 (difelikefalin) is an oral agonist of kappa opioid receptors (KORs) It is being developed for the treatment of pruritus secondary to chronic kidney disease and notalgia paresthetica.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Neurology Brand Name: Korsuva

Study Phase: Phase IIProduct Type: Peptide

Sponsor: Inapplicable

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable August 02, 2023

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04

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : CR845 (difelikefalin) is an oral agonist of kappa opioid receptors (KORs) It is being developed for the treatment of pruritus secondary to chronic kidney disease and notalgia paresthetica.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Inapplicable

August 02, 2023

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  • Development Update

Details:

Kapruvia® (difelikefalin) is a selective kappa opioid receptor agonist with low central nervous system penetration. It is recommended by NICE for the treatment of moderate-to-severe CKD-associated pruritus in adult patients on haemodialysis.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Nephrology Brand Name: Kapruvia

Study Phase: Approved FDFProduct Type: Peptide

Sponsor: CARA Therapeutics

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable May 18, 2023

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05

CSL

Australia
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AAPS National Biotech
Not Confirmed

CSL

Australia
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AAPS National Biotech
Not Confirmed

Details : Kapruvia® (difelikefalin) is a selective kappa opioid receptor agonist with low central nervous system penetration. It is recommended by NICE for the treatment of moderate-to-severe CKD-associated pruritus in adult patients on haemodialysis.

Product Name : Kapruvia

Product Type : Peptide

Upfront Cash : Inapplicable

May 18, 2023

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Details:

Cara intends to use the proceeds from the agreement to support the ongoing clinical development of its oral CR845 (difelikefalin) pipeline, including late-stage programs for pruritus associated with atopic dermatitis, advanced chronic kidney disease, and notalgia paresthetica.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Korsuva

Study Phase: Phase IIProduct Type: Peptide

Sponsor: HealthCare Royalty

Deal Size: $40.0 million Upfront Cash: Undisclosed

Deal Type: Financing February 11, 2023

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06

Arvo
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Arvo
Not Confirmed

Details : Cara intends to use the proceeds from the agreement to support the ongoing clinical development of its oral CR845 (difelikefalin) pipeline, including late-stage programs for pruritus associated with atopic dermatitis, advanced chronic kidney disease, and...

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Undisclosed

February 11, 2023

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Details:

The milestone payment is related to continued clinical progress of Oral KORSUVA (difelikefalin), which is currently the subject of four separate clinical programs for pruritus in patients with hepatic impairment due to primary biliary cholangitis.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Korsuva

Study Phase: Phase IIProduct Type: Peptide

Sponsor: CARA Therapeutics

Deal Size: $46.0 million Upfront Cash: $8.0 million

Deal Type: Licensing Agreement October 10, 2022

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07

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : The milestone payment is related to continued clinical progress of Oral KORSUVA (difelikefalin), which is currently the subject of four separate clinical programs for pruritus in patients with hepatic impairment due to primary biliary cholangitis.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : $8.0 million

October 10, 2022

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Details:

KOMFORT Phase 2 clinical trial evaluating oral Korsuva (difelikefalin) for the treatment of moderate-to-severe pruritus in patients with notalgia paresthetica will be presented during a late-breaking news session.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Korsuva

Study Phase: Phase IIProduct Type: Peptide

Sponsor: Inapplicable

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable August 22, 2022

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08

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : KOMFORT Phase 2 clinical trial evaluating oral Korsuva (difelikefalin) for the treatment of moderate-to-severe pruritus in patients with notalgia paresthetica will be presented during a late-breaking news session.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Inapplicable

August 22, 2022

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  • Development Update

Details:

Kapruvia® (difelikefalin) will be the first therapy available for the treatment of moderate-to-severe pruritus associated with chronic kidney disease in adult hemodialysis patients.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Dermatology Brand Name: Kapruvia

Study Phase: Approved FDFProduct Type: Peptide

Sponsor: CARA Therapeutics

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable August 19, 2022

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09

Vifor Pharma

Country
arrow
Arvo
Not Confirmed

Vifor Pharma

Country
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Arvo
Not Confirmed

Details : Kapruvia® (difelikefalin) will be the first therapy available for the treatment of moderate-to-severe pruritus associated with chronic kidney disease in adult hemodialysis patients.

Product Name : Kapruvia

Product Type : Peptide

Upfront Cash : Inapplicable

August 19, 2022

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Details:

The primary efficacy endpoint of change from baseline in the weekly mean of the daily 24-hour Worst Itch-Numeric Rating Scale (WI-NRS) score at Week 8 was achieved for Korsuva (difelikefalin) vs. -2.4 placebo, p=0.001.


Lead Product(s): Difelikefalin Acetate

Therapeutic Area: Neurology Brand Name: Korsuva

Study Phase: Phase IIProduct Type: Peptide

Sponsor: Inapplicable

Deal Size: Inapplicable Upfront Cash: Inapplicable

Deal Type: Inapplicable August 09, 2022

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10

Arvo
Not Confirmed
Arvo
Not Confirmed

Details : The primary efficacy endpoint of change from baseline in the weekly mean of the daily 24-hour Worst Itch-Numeric Rating Scale (WI-NRS) score at Week 8 was achieved for Korsuva (difelikefalin) vs. -2.4 placebo, p=0.001.

Product Name : Korsuva

Product Type : Peptide

Upfront Cash : Inapplicable

August 09, 2022

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