Drybench Patent.
LETROZOLE; RIBOCICLIB SUCCINATE, NDA 209935
The patents and exclusivities FDA's Orange Book lists for NDA 209935 as captured on 14 October 2026, each date named by its rule and its rows, and the rows of FDA's Paragraph IV list that give this NDA's number, as captured on 17 October 2026. Listed protection is a range of dates, never one date.
FDA capture · review pending. Each row is shown as captured from FDA's Orange Book files and Paragraph IV list. Dates are FDA's own; spreadsheet day numbers are shown as dates, and a cell that cannot be read as one date is shown as written and left out of the range. Where FDA lists a *PED row without flags, its flags are read from the base row and marked so. A Paragraph IV row is placed here only by the number in its RLD/NDA cell; nothing is joined by name. How this page reads FDA's files has not been independently reviewed by a regulatory-affairs reviewer.
- Orange Book captured
- 14 October 2026
- Paragraph IV list captured
- 17 October 2026
- Last checked
- 30 October 2026
- Data-branch commit
- dadcab56563716abea6c5e31a5e1970080c778ef
Listed protection is a range of the dates FDA lists, not a forecast of market entry, and not legal, regulatory or investment advice.
Dates as listed in FDA's Orange Book capture of 14 October 2026. This page does not say whether a date has passed; compare it with today's date and FDA's current Orange Book. This page shows only what the capture of 14 October 2026 lists. It does not show patents or exclusivities listed before and since removed.
Listed protection
Listed dates run from 17 Sep 2027 to 14 Oct 2036, each by its own rule; no one date stands for this product.
- Earliest listed date
- 17 Sep 2027I-951 exclusivityRule R3 · Product 001 · exclusivity.txt line 814
- Latest listed date
- 14 Oct 2036US 12,419,894 with pediatric exclusivity, as listedRule R2 · Product 001 · patent.txt line 11,036
- Latest substance patent
- 9 May 2032US 9,193,732 with pediatric exclusivity, as listedRule R2 · Product 001 · patent.txt line 11,051
- Latest listed patent
- 14 Oct 2036US 12,419,894 with pediatric exclusivity, as listedRule R2 · Product 001 · patent.txt line 11,036
- Latest exclusivity
- 1 Jan 2030PED exclusivityRule R3 · Product 001 · exclusivity.txt line 816
11 use-code patents, blocking the coded use only
Products
Each product number FDA lists under NDA 209935, as listed. The sections below name products by these numbers.
Product 001 · KISQALI FEMARA CO-PACK (COPACKAGED)
- Dosage form; route
- TABLET;ORAL
- Strength
- 2.5MG;EQ 200MG BASE
- Approval date as listed
- 4 May 2017
- Type as listed
- RX
- Applicant as listed
- NOVARTIS PHARMACEUTICALS CORP
Listed patents
Every patent the FDA lists for this product, as the application holder submitted it, with its flags. The FDA does not verify listings.
29 entries from 29 rows as listed; rows merge only where every cell shown is the same, each with its product numbers.
US 8,324,225, substance and product patent
patent.txt line 11,042- Expiry as listed
- 17 Jun 2028
- Rule
- R1
- Flags
- substance · product
- Product numbers
- 001
US 8,324,225 with pediatric exclusivity, as listed
patent.txt line 11,041- Expiry as listed
- 17 Dec 2028
- Rule
- R2
- Flags
- substance · product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 9,416,136, use patent
patent.txt line 11,054- Expiry as listed
- 20 Aug 2029
- Rule
- R1
- Flags
- use code U-2505
- Product numbers
- 001
US 9,416,136, use patent
patent.txt line 11,055- Expiry as listed
- 20 Aug 2029
- Rule
- R1
- Flags
- use code U-3264
- Product numbers
- 001
US 9,416,136, use patent
patent.txt line 11,056- Expiry as listed
- 20 Aug 2029
- Rule
- R1
- Flags
- use code U-3998
- Product numbers
- 001
US 8,962,630, use patent
patent.txt line 11,048- Expiry as listed
- 9 Dec 2029
- Rule
- R1
- Flags
- use code U-2505
- Product numbers
- 001
US 8,962,630, use patent
patent.txt line 11,049- Expiry as listed
- 9 Dec 2029
- Rule
- R1
- Flags
- use code U-3264
- Product numbers
- 001
US 8,962,630, use patent
patent.txt line 11,050- Expiry as listed
- 9 Dec 2029
- Rule
- R1
- Flags
- use code U-3998
- Product numbers
- 001
US 9,416,136 with pediatric exclusivity, as listed
patent.txt line 11,053- Expiry as listed
- 20 Feb 2030
- Rule
- R2
- Flags
- pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 8,685,980, substance and product patent
patent.txt line 11,046- Expiry as listed
- 25 May 2030
- Rule
- R1
- Flags
- substance · product
- Product numbers
- 001
US 8,962,630 with pediatric exclusivity, as listed
patent.txt line 11,047- Expiry as listed
- 9 Jun 2030
- Rule
- R2
- Flags
- pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 8,685,980 with pediatric exclusivity, as listed
patent.txt line 11,045- Expiry as listed
- 25 Nov 2030
- Rule
- R2
- Flags
- substance · product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 8,415,355, substance and product patent
patent.txt line 11,044- Expiry as listed
- 13 Mar 2031
- Rule
- R1
- Flags
- substance · product
- Product numbers
- 001
US 8,415,355 with pediatric exclusivity, as listed
patent.txt line 11,043- Expiry as listed
- 13 Sep 2031
- Rule
- R2
- Flags
- substance · product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 9,193,732, substance and product patent
patent.txt line 11,052- Expiry as listed
- 9 Nov 2031
- Rule
- R1
- Flags
- substance · product
- Product numbers
- 001
US 9,868,739, use patent
patent.txt line 11,058- Expiry as listed
- 9 Nov 2031
- Rule
- R1
- Flags
- use code U-2505
- Product numbers
- 001
US 9,868,739, use patent
patent.txt line 11,059- Expiry as listed
- 9 Nov 2031
- Rule
- R1
- Flags
- use code U-3264
- Product numbers
- 001
US 9,868,739, use patent
patent.txt line 11,060- Expiry as listed
- 9 Nov 2031
- Rule
- R1
- Flags
- use code U-3998
- Product numbers
- 001
US 9,193,732 with pediatric exclusivity, as listed
patent.txt line 11,051- Expiry as listed
- 9 May 2032
- Rule
- R2
- Flags
- substance · product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 9,868,739 with pediatric exclusivity, as listed
patent.txt line 11,057- Expiry as listed
- 9 May 2032
- Rule
- R2
- Flags
- pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 12,544,380, use patent
patent.txt line 11,039- Expiry as listed
- 7 Aug 2034
- Rule
- R1
- Flags
- use code U-3264
- Product numbers
- 001
US 12,544,380, use patent
patent.txt line 11,040- Expiry as listed
- 7 Aug 2034
- Rule
- R1
- Flags
- use code U-3998
- Product numbers
- 001
US 12,544,380 with pediatric exclusivity, as listed
patent.txt line 11,038- Expiry as listed
- 7 Feb 2035
- Rule
- R2
- Flags
- pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 10,799,506, product patent
patent.txt line 11,033- Expiry as listed
- 14 Apr 2036
- Rule
- R1
- Flags
- product
- Product numbers
- 001
US 12,064,434, product patent
patent.txt line 11,035- Expiry as listed
- 14 Apr 2036
- Rule
- R1
- Flags
- product
- Product numbers
- 001
US 12,419,894, product patent
patent.txt line 11,037- Expiry as listed
- 14 Apr 2036
- Rule
- R1
- Flags
- product
- Product numbers
- 001
US 10,799,506 with pediatric exclusivity, as listed
patent.txt line 11,032- Expiry as listed
- 14 Oct 2036
- Rule
- R2
- Flags
- product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 12,064,434 with pediatric exclusivity, as listed
patent.txt line 11,034- Expiry as listed
- 14 Oct 2036
- Rule
- R2
- Flags
- product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
US 12,419,894 with pediatric exclusivity, as listed
patent.txt line 11,036- Expiry as listed
- 14 Oct 2036
- Rule
- R2
- Flags
- product · pediatric, as listed by FDA (from the base row)
- Product numbers
- 001
Listed exclusivities
Each exclusivity FDA lists for NDA 209935, with its code, FDA's definition of the code where the store's code list gives one, and its date as listed.
I-951 exclusivity
exclusivity.txt line 814- Date
- 17 Sep 2027
- Rule
- R3
- Definition
- New indication (to be checked against FDA's list)
- Product numbers
- 001
PED exclusivity
exclusivity.txt line 817- Date
- 17 Mar 2028
- Rule
- R3
- Definition
- Pediatric exclusivity (to be checked against FDA's list)
- Product numbers
- 001
M-14 exclusivity
exclusivity.txt line 815- Date
- 1 Jul 2029
- Rule
- R3
- Definition
- Miscellaneous (to be checked against FDA's list)
- Product numbers
- 001
PED exclusivity
exclusivity.txt line 816- Date
- 1 Jan 2030
- Rule
- R3
- Definition
- Pediatric exclusivity (to be checked against FDA's list)
- Product numbers
- 001
Paragraph IV list rows giving NDA 209935
The rows of FDA's Paragraph IV certifications list as captured on 17 October 2026 whose RLD/NDA cell gives NDA 209935, each cell as listed.
FDA's Paragraph IV list names no patent number, so it does not say which of the patents on this page an applicant certified against.
The list gives the last qualifying patent's expiry without pediatric exclusivity; in the app's Patents view, the Orange Book lists any *PED period as a separate row with its own date. The two dates describe different things. A blank cell is one FDA left blank in its list. Dates are FDA's own; the last qualifying patent expiry is not recomputed from the Orange Book.
Rows whose RLD/NDA cell we could not read as exactly one NDA number are kept apart on the list page; some may concern this product.
Rows on FDA's Paragraph IV list whose RLD/NDA cell gives NDA 209935
Ribociclib Succinate and Letrozole (Copackaged) · Tablets · 200 mg and 2.5 mg
RLD/NDA as listed: Kisqali Femara Co-Pack 209935- First PIV submission
- 15 Mar 2021
- ANDAs
- 4
- 180-day status
- blank
- Decision posted
- blank
- First applicant approval
- blank
- First marketing
- blank
- Last qualifying patent expiry (as listed by FDA)
- 14 Apr 2036
Notes from the trace
- R6 tentative approvals: not in the Orange Book data files as captured; the Drugs@FDA join is a later ruling.
Patents vs FDA exclusivityHow to read the Orange Book data filesParagraph IV certificationWhat changed, by week