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Last Updated: May 21, 2024

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Calcium acetate - Generic Drug Details

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What are the generic drug sources for calcium acetate and what is the scope of patent protection?

Calcium acetate is the generic ingredient in five branded drugs marketed by Amneal Pharms, Chartwell Rx, Heritage Pharms Inc, Hikma, Invagen Pharms, Lotus Pharm Co Ltd, Lupin Ltd, Nostrum Labs Inc, Square Pharms, Suven Pharms, Fresenius Medcl, Chartwell Molecular, Padagis Us, and Cypress Pharm, and is included in eighteen NDAs. There are three patents protecting this compound and two Paragraph IV challenges. Additional information is available in the individual branded drug profile pages.

Calcium acetate has twenty-three patent family members in sixteen countries.

There are six drug master file entries for calcium acetate. Twenty suppliers are listed for this compound.

Summary for calcium acetate

International Patents:	23
US Patents:	3
Tradenames:	5
Applicants:	14
NDAs:	18
Drug Master File Entries:	6
Finished Product Suppliers / Packagers:	20
Raw Ingredient (Bulk) Api Vendors:	60
Clinical Trials:	40
Patent Applications:	8,410
Formulation / Manufacturing:	see details
Drug Prices:	Drug price trends for calcium acetate
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for calcium acetate
What excipients (inactive ingredients) are in calcium acetate?	calcium acetate excipients list
DailyMed Link:	calcium acetate at DailyMed

See drug prices for calcium acetate

Drug Sales Revenue Trends for calcium acetate

See drug sales revenues for calcium acetate

Recent Clinical Trials for calcium acetate

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

Sponsor	Phase
Mark Fox	Phase 4
University of Colorado, Denver	Phase 2
National Cheng Kung University	N/A

See all calcium acetate clinical trials

Pharmacology for calcium acetate

Drug Class	Blood Coagulation Factor Phosphate Binder
Mechanism of Action	Phosphate Chelating Activity
Physiological Effect	Increased Coagulation Factor Activity

Anatomical Therapeutic Chemical (ATC) Classes for calcium acetate

V03AE	Drugs for treatment of hyperkalemia and hyperphosphatemia
V03A	ALL OTHER THERAPEUTIC PRODUCTS
V03	ALL OTHER THERAPEUTIC PRODUCTS
V	Various

Paragraph IV (Patent) Challenges for CALCIUM ACETATE

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
PHOSLYRA	Oral Solution	calcium acetate	667 mg/5 mL	022581	2	2013-12-05
PHOSLO GELCAPS	Capsules	calcium acetate	EQ 169 mg calcium	021160	1	2005-05-31

US Patents and Regulatory Information for calcium acetate

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Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Fresenius Medcl	PHOSLO	calcium acetate	CAPSULE;ORAL	021160-002	Apr 2, 2001		DISCN	No	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
Square Pharms	CALCIUM ACETATE	calcium acetate	CAPSULE;ORAL	217205-001	Mar 13, 2023	AB	RX	No	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
Invagen Pharms	CALCIUM ACETATE	calcium acetate	CAPSULE;ORAL	203135-001	Feb 7, 2013	AB	RX	No	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
Fresenius Medcl	PHOSLYRA	calcium acetate	SOLUTION;ORAL	022581-001	Apr 18, 2011		DISCN	Yes	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
Heritage Pharms Inc	CALCIUM ACETATE	calcium acetate	TABLET;ORAL	202885-001	Jan 22, 2015	AB	RX	No	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
Fresenius Medcl	PHOSLYRA	calcium acetate	SOLUTION;ORAL	022581-001	Apr 18, 2011		DISCN	Yes	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

Expired US Patents for calcium acetate

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Fresenius Medcl	PHOSLO	calcium acetate	TABLET;ORAL	019976-001	Dec 10, 1990	⤷ Sign Up	⤷ Sign Up
Fresenius Medcl	PHOSLO	calcium acetate	CAPSULE;ORAL	021160-002	Apr 2, 2001	⤷ Sign Up	⤷ Sign Up
Fresenius Medcl	PHOSLO	calcium acetate	CAPSULE;ORAL	021160-001	Apr 2, 2001	⤷ Sign Up	⤷ Sign Up
Fresenius Medcl	PHOSLO GELCAPS	calcium acetate	CAPSULE;ORAL	021160-003	Apr 2, 2001	⤷ Sign Up	⤷ Sign Up
Fresenius Medcl	PHOSLO GELCAPS	calcium acetate	CAPSULE;ORAL	021160-003	Apr 2, 2001	⤷ Sign Up	⤷ Sign Up
Fresenius Medcl	PHOSLO GELCAPS	calcium acetate	CAPSULE;ORAL	021160-003	Apr 2, 2001	⤷ Sign Up	⤷ Sign Up
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>Patent No.	>Patent Expiration

International Patents for calcium acetate

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Country	Patent Number	Title	Estimated Expiration
Brazil	PI0714882	composiÇço lÍquida de acetato de cÁlcio e uso de uma soluÇço aquosa que compreende entre cerca de 7% (p/v) e cerca de 21% (p/v) de acetato de cÁlcio	⤷ Sign Up
European Patent Office	2484352	Compositions liquides d'acétate de calcium (Liquid compositions of calcium acetate)	⤷ Sign Up
Hong Kong	1202815	醋酸鈣的液體組合物 (LIQUID COMPOSITIONS OF CALCIUM ACETATE)	⤷ Sign Up
South Africa	200900472	Liquid compositions of calcium acetate	⤷ Sign Up
Mexico	2009000722	COMPOSICIONES LIQUIDAS DE ACETATO DE CALCIO. (LIQUID COMPOSITIONS OF CALCIUM ACETATE.)	⤷ Sign Up
China	104095838	Liquid compositions of calcium acetate	⤷ Sign Up
>Country	>Patent Number	>Title	>Estimated Expiration

Supplementary Protection Certificates for calcium acetate

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Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2365988	122018000012	Germany	⤷ Sign Up	PRODUCT NAME: PATIROMER SORBITEX CALCIUM UND SALZE DAVON IN ALLEN VOM GRUNDPATENT GESCHUETZTEN FORMEN; REGISTRATION NO/DATE: EU/1/17/1179 20170719
2365988	CA 2018 00006	Denmark	⤷ Sign Up	PRODUCT NAME: PATIROMER SORBITEX CALCIUM AND ANY SALTS AND DERIVATIVES THEREOF; REG. NO/DATE: EU/1/17/1179/001-009 20170721
0933372	SPC/GB08/018	United Kingdom	⤷ Sign Up	PRODUCT NAME: FOSAMPRENAVIR CALCIUM: ((1S,2R)-3-(((4-AMINOPHENYL)SULFONYL)(2-METHYLPROPYL)AMINO)-1-(PHENYLMETHYL)-2(PHOSPHONOOXY)PROPYL)-CARBABAMIC ACID C-((3S)-TETRAHYDRO-3-FURANYL) ESTER CALCIUM SALT; REGISTERED: UK EU/1/04/282/001 20040712; UK EU/1/04/282/002 20040712
2365988	2018C/006	Belgium	⤷ Sign Up	PRODUCT NAME: PATIROMER SORBITEX CALCIUM OF EERDER WELK ZOUT OF AFGELEIDE ERVAN; AUTHORISATION NUMBER AND DATE: EU/1/17/1179 20170721
2957286	122018000145	Germany	⤷ Sign Up	PRODUCT NAME: PATIROMER SORBITEX CALCIUM; REGISTRATION NO/DATE: EU/1/17/1179 20170719
2957286	300962	Netherlands	⤷ Sign Up	PRODUCT NAME: PATIROMER SORBITEX CALCIUM; REGISTRATION NO/DATE: EU/1/17/1179 20170721
>Patent Number	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration	>SPC Description

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.