PARSABIV Drug Patent Profile

Which patents cover Parsabiv, and what generic alternatives are available?

Parsabiv is a drug marketed by Kai Pharms Inc and is included in one NDA. There are seven patents protecting this drug and one Paragraph IV challenge.

This drug has one hundred and one patent family members in forty-four countries.

The generic ingredient in PARSABIV is etelcalcetide. One supplier is listed for this compound. Additional details are available on the etelcalcetide profile page.

DrugPatentWatch^® Generic Entry Outlook for Parsabiv

Parsabiv was eligible for patent challenges on February 7, 2021.

By analyzing the patents and regulatory protections it appears that the earliest date for generic entry will be June 27, 2034. This may change due to patent challenges or generic licensing.

There have been three patent litigation cases involving the patents protecting this drug, indicating strong interest in generic launch. Recent data indicate that 63% of patent challenges are decided in favor of the generic patent challenger and that 54% of successful patent challengers promptly launch generic drugs.

Indicators of Generic Entry

Summary for PARSABIV

International Patents:	101
US Patents:	7
Applicants:	1
NDAs:	1
Finished Product Suppliers / Packagers:	1
Raw Ingredient (Bulk) Api Vendors:	24
Clinical Trials:	4
Patent Applications:	47
Drug Prices:	Drug price information for PARSABIV
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for PARSABIV
What excipients (inactive ingredients) are in PARSABIV?	PARSABIV excipients list
DailyMed Link:	PARSABIV at DailyMed

See drug prices for PARSABIV

DrugPatentWatch^® Estimated Loss of Exclusivity (LOE) Date for PARSABIV

NDA:

208325

Dosage:

SOLUTION;INTRAVENOUS

^*The generic entry opportunity date is the latter of the last compound-claiming patent and the last regulatory exclusivity protection. Many factors can influence early or later generic entry. This date is provided as a rough estimate of generic entry potential and should not be used as an independent source.

Recent Clinical Trials for PARSABIV

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
Prim. Priv. Doz. Dr. Daniel Cejka	Phase 2
Amgen	Phase 2
Amgen	Phase 3

See all PARSABIV clinical trials

Pharmacology for PARSABIV

Drug Class	Calcium-sensing Receptor Agonist
Mechanism of Action	Increased Calcium-sensing Receptor Sensitivity

Anatomical Therapeutic Chemical (ATC) Classes for PARSABIV

H05BX	Other anti-parathyroid agents
H05B	ANTI-PARATHYROID AGENTS
H05	CALCIUM HOMEOSTASIS
H	Systemic hormonal preparations, excluding sex hormones and insulins

Paragraph IV (Patent) Challenges for PARSABIV

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
PARSABIV	Injection	etelcalcetide	2.5 mg/0.5 mL 5 mg/mL 10 mg/2 mL	208325	2	2021-02-08

US Patents and Regulatory Information for PARSABIV

PARSABIV is protected by seven US patents.

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

Patents protecting PARSABIV

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-001	Feb 7, 2017		RX	Yes	Yes			Y	Y
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-003	Feb 7, 2017		RX	Yes	Yes			Y
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-001	Feb 7, 2017		RX	Yes	Yes				Y
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-001	Feb 7, 2017		RX	Yes	Yes			Y
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-002	Feb 7, 2017		RX	Yes	Yes			Y	Y
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-003	Feb 7, 2017		RX	Yes	Yes				Y
Kai Pharms Inc	PARSABIV	etelcalcetide	SOLUTION;INTRAVENOUS	208325-002	Feb 7, 2017		RX	Yes	Yes			Y	Y

EU/EMA Drug Approvals for PARSABIV

Company	Drugname	Inn	Product Number / Indication	Status	Generic	Biosimilar	Orphan	Marketing Authorisation	Marketing Refusal
Amgen Europe B.V.	Parsabiv	etelcalcetide	EMEA/H/C/003995 Parsabiv is indicated for the treatment of secondary hyperparathyroidism (SHPT) in adult patients with chronic kidney disease (CKD) on haemodialysis therapy.	Authorised	no	no	no	2016-11-11

International Patents for PARSABIV

When does loss-of-exclusivity occur for PARSABIV?

Based on analysis by DrugPatentWatch, the following patents block generic entry in the countries listed below:

Argentina

Australia

Brazil

Canada

Chile

China

Costa Rica

Croatia

Cyprus

Denmark

Eurasian Patent Organization

European Patent Office

Hong Kong

Hungary

Israel

Japan

Jordan

Lithuania

Malaysia

Mexico

Montenegro

Morocco

New Zealand

Peru

Philippines

Poland

Portugal

Serbia

Singapore

Slovenia

South Africa

South Korea

Spain

Taiwan

Tunisia

Ukraine

Uruguay

Generics may enter earlier, or later, based on new patent filings, patent extensions, patent invalidation, early generic licensing, generic entry preferences, and other factors.

See the table below for additional patents covering PARSABIV around the world.

Country	Patent Number	Title	Estimated Expiration
Serbia	56238	STABILNA TEČNA FORMULACIJA AMG 416 (VELKALCETIDA) (STABLE LIQUID FORMULATION OF AMG 416 (VELCALCETIDE))
Mexico	2015017952	FORMULACION LIQUIDA ESTABLE DE AMG 416 (VELCALCETIDA). (STABLE LIQUID FORMULATION OF AMG 416 (VELCALCETIDE).)
Hungary	S1700008
Eurasian Patent Organization	201690099	УСТОЙЧИВАЯ ЖИДКАЯ КОМПОЗИЦИЯ, СОДЕРЖАЩАЯ AMG-416 (ВЕЛКАЛЬЦЕТИД)
Denmark	3013318
Australia	2010278897	Therapeutic agents for reducing parathyroid hormone levels
Malaysia	180276	STABLE LIQUID FORMULATION OF AMG 416 (VELCALCETIDE)

Supplementary Protection Certificates for PARSABIV

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2459208	PA2017007,C2459208	Lithuania		PRODUCT NAME: ETELKALCETIDAS ARBA JO DRUSKA, ISKAITANT ETELKALCETIDO HIDROCHLORIDA; REGISTRATION NO/DATE: EU/1/16/1142 20161111
2459208	17C1009	France		PRODUCT NAME: ETELCALCETIDE, OU UN SEL DE CELUI-CI, NOTAMMENT LE CHLORHYDRATE D'ETELCALCETIDE; REGISTRATION NO/DATE: EU/1/16/1142/001-012 20161115
2459208	CA 2017 00006	Denmark		PRODUCT NAME: ETELCALCETID ELLER ET SALT DERAF, INKLUSIV ETELCALCETIDHYDROCHLORID; REG. NO/DATE: EU/1/16/1142/001-012 20161115
2459208	C20170006 00208	Estonia		PRODUCT NAME: ETELKALTSETIID;REG NO/DATE: EU/1/16/1142 15.11.2016
2459208	1790012-7	Sweden		PRODUCT NAME: ETELCALCETIDE, OR SALT THEREOF, INCLUDING ETELCALCETIDE HYDROCHLORIDE; REG. NO/DATE: EU/1/16/1142/001-012 20161115
2459208	SPC/GB17/018	United Kingdom		PRODUCT NAME: ETELCALCETIDE, OR A SALT THEROF, INCLUDING ETELCALCETIDE HYDROCHLORIDE; REGISTERED: UK EU/1/16/1142/001-012 20161115; UK PLGB 13832/0039 20161115; UK PLGB 13832/0040 20161115; UK PLGB 13832/0041 20161115
2459208	LUC00008	Luxembourg		PRODUCT NAME: ETELCALCETIDE, OU UN SEL EQUIVALENT, Y COMPRIS LE CHLORHYDRATE D'ETELCALCETIDE (PARSABIV); AUTHORISATION NUMBER AND DATE: EU/1/16/1142 20161115