Letrozole; ribociclib succinate - Generic Drug Details

What are the generic drug sources for letrozole; ribociclib succinate and what is the scope of freedom to operate?

Letrozole; ribociclib succinate is the generic ingredient in one branded drug marketed by Novartis and is included in one NDA. There are eight patents protecting this compound. Additional information is available in the individual branded drug profile pages.

Letrozole; ribociclib succinate has one hundred and eighty-four patent family members in fifty-three countries.

One supplier is listed for this compound.

Summary for letrozole; ribociclib succinate

International Patents:	184
US Patents:	8
Tradenames:	1
Applicants:	1
NDAs:	1
Finished Product Suppliers / Packagers:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for letrozole; ribociclib succinate
DailyMed Link:	letrozole; ribociclib succinate at DailyMed

DrugPatentWatch^® Estimated Loss of Exclusivity (LOE) Date for letrozole; ribociclib succinate

Dosage:

TABLET, TABLET;ORAL

^*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.

Anatomical Therapeutic Chemical (ATC) Classes for letrozole; ribociclib succinate

L01EF	Cyclin-dependent kinase (CDK) inhibitors
L01E	PROTEIN KINASE INHIBITORS
L01	ANTINEOPLASTIC AGENTS
L	Antineoplastic and immunomodulating agents

L02BG	Aromatase inhibitors
L02B	HORMONE ANTAGONISTS AND RELATED AGENTS
L02	ENDOCRINE THERAPY
L	Antineoplastic and immunomodulating agents

Paragraph IV (Patent) Challenges for LETROZOLE; RIBOCICLIB SUCCINATE

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
KISQALI FEMARA CO-PACK (COPACKAGED)	Tablets	letrozole; ribociclib succinate	200 mg and 2.5 mg	209935	4	2021-03-15

US Patents and Regulatory Information for letrozole; ribociclib succinate

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes			Y
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes			Y	Y
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes			Y	Y
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes
Novartis	KISQALI FEMARA CO-PACK (COPACKAGED)	letrozole; ribociclib succinate	TABLET;ORAL	209935-001	May 4, 2017		RX	Yes	Yes			Y	Y

International Patents for letrozole; ribociclib succinate

Country	Patent Number	Title	Estimated Expiration
Cuba	20080223	COMPUESTOS DE PIRROLO-PIRIMIDINA Y SUS USOS
China	113956257	一种细胞周期调节蛋白依赖性激酶抑制剂的盐及其制备方法 (Salt(s) of cell cycle regulatory protein dependent kinase inhibitor and methods of making thereof)
Japan	2017039757	７−シクロペンチル−２−（５−ピペラジン−１−イル−ピリジン−２−イルアミノ）−７Ｈ−ピロロ［２，３−Ｄ］ピリミジン−６−カルボン酸ジメチルアミドの塩およびその製造方法 (SALT OF 7-CYCLOPENTYL-2-(5-PIPERAZIN-1-YL-PYRIDIN-2-YLAMINO)-7H-PYRROLO[2,3-D]PYRIMIDINE-6-CARBOXYLIC ACID DIMETHYLAMIDE AND PROCESSES OF MAKING THEREOF)
European Patent Office	2331547	COMPOSÉS DE PYRROLOPYRIMIDINE ET LEURS UTILISATIONS (PYRROLOPYRIMIDINE COMPOUNDS AS CDK INHIBITORS)
Japan	2014129361	PYRROLOPYRIMIDINE COMPOUND AS CDK INHIBITOR
Spain	2803432
Uruguay	32067	COMPUESTOS DE PIRROLO-PIRIMIDINA Y SUS USOS

Supplementary Protection Certificates for letrozole; ribociclib succinate

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
2331547	1790067-1	Sweden		PRODUCT NAME: RIBOCICLIB AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF; REG. NO/DATE: EU/1/17/1221 20170824
2331547	LUC00048	Luxembourg		PRODUCT NAME: RIBOCICLIB OU UN SEL PHARMACEUTIQUEMENT ACCEPTABLE DE CELUI-CI; AUTHORISATION NUMBER AND DATE: EU/1/171221 20170824
2331547	CR 2017 00060	Denmark		PRODUCT NAME: RIBOCICLIB ELLER ET FARMACEUTISK ACCEPTABELT SALT DERAF; REG. NO/DATE: EU/1/17/1221 20170824
2331547	291 26-2017	Slovakia		PRODUCT NAME: RIBOCIKLIB VO VSETKYCH FORMACH CHRANENYCH ZAKLADNYM PATENTOM; REGISTRATION NO/DATE: EU/1/17/1221 20170824
2331547	PA2017039,C2331547	Lithuania		PRODUCT NAME: RIBOCIKLIBAS ARBA JO FARMACINIU POZIURIU PRIIMTINA DRUSKA; REGISTRATION NO/DATE: EU/1/17/1221 20170822
2331547	122017000102	Germany		PRODUCT NAME: RIBOCICLIB ODER EIN PHARMAZEUTISCH ANNEHMBARES SALZ DAVON.; REGISTRATION NO/DATE: EU/1/17/1221 20170822
2331547	2017059	Norway		PRODUCT NAME: RIBOSIKLIB ELLER ET; REG. NO/DATE: EU/1/17/1221 20170830