Paragraph IV (ANDA) Litigation Tracker
New Hatch-Waxman ANDA suits (nature of suit 835) as they are filed.
Need this run on your own compound or patent? Paragraph IV Dockets needs a hand-reviewed case build, not an automated minutes-long check: get a Standard Report with real human sign-off.
Novartis Pharmaceuticals Corporation v. Apotex Inc.: real ANDA Paragraph IV litigation filed 2026-10-05
Real ANDA Paragraph IV litigation tracked via CourtListener: Novartis Pharmaceuticals Corporation v. Apotex Inc., D. Del., docket 1:26-cv-01281, filed 2026-10-05. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/74919386/novartis-pharmaceuticals-corporation-v-apotex-inc/
ASTELLAS PHARMA INC. v. ALEMBIC PHARMACEUTICALS LIMITED: real ANDA Paragraph IV litigation filed 2026-10-05
Real ANDA Paragraph IV litigation tracked via CourtListener: ASTELLAS PHARMA INC. v. ALEMBIC PHARMACEUTICALS LIMITED, D.N.J., docket 3:26-cv-12995, filed 2026-10-05. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/74920176/astellas-pharma-inc-v-alembic-pharmaceuticals-limited/
Supernus Pharmaceuticals, Inc. v. Ascent Pharmaceuticals Inc.: real ANDA Paragraph IV litigation filed 2026-09-24
Real ANDA Paragraph IV litigation tracked via CourtListener: Supernus Pharmaceuticals, Inc. v. Ascent Pharmaceuticals Inc., E.D.N.Y, docket 2:26-cv-05942, filed 2026-09-24. Nature of suit: 835 Patent - Abbreviated New Drug Applications (ANDA). Source: https://www.courtlistener.com/docket/74848879/supernus-pharmaceuticals-inc-v-ascent-pharmaceuticals-inc/
ASTELLAS PHARMA INC. v. MSN PHARMACEUTICALS INC.: real ANDA Paragraph IV litigation filed 2026-10-09
Real ANDA Paragraph IV litigation tracked via CourtListener: ASTELLAS PHARMA INC. v. MSN PHARMACEUTICALS INC., D.N.J., docket 3:26-cv-13220, filed 2026-10-09. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/74945348/astellas-pharma-inc-v-msn-pharmaceuticals-inc/
Pfizer Inc. v. Sun Pharmaceutical Industries Limited: real ANDA Paragraph IV litigation filed 2026-10-01
Real ANDA Paragraph IV litigation tracked via CourtListener: Pfizer Inc. v. Sun Pharmaceutical Industries Limited, D. Del., docket 1:26-cv-01270, filed 2026-10-01. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/74907916/pfizer-inc-v-sun-pharmaceutical-industries-limited/
SHIONOGI INC. v. SHANGHAI AUZONE BIOLOGICAL TECHNOLOGY CO., LTD.: real ANDA Paragraph IV litigation filed 2026-10-13
Real ANDA Paragraph IV litigation tracked via CourtListener: SHIONOGI INC. v. SHANGHAI AUZONE BIOLOGICAL TECHNOLOGY CO., LTD., D.N.J., docket 2:26-cv-13323, filed 2026-10-13. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/74954456/shionogi-inc-v-shanghai-auzone-biological-technology-co-ltd/
Gilead Sciences, Inc. v. Cipla Ltd.: real ANDA Paragraph IV litigation filed 2026-08-06
Real ANDA Paragraph IV litigation tracked via CourtListener: Gilead Sciences, Inc. v. Cipla Ltd., D.Del., docket 1:26-cv-00990, filed 2026-08-06. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/73733327/gilead-sciences-inc-v-cipla-ltd/
NOVO NORDISK INC. v. CIPLA LTD.: real ANDA Paragraph IV litigation filed 2026-07-17
Real ANDA Paragraph IV litigation tracked via CourtListener: NOVO NORDISK INC. v. CIPLA LTD., D.N.J., docket 1:26-cv-08939, filed 2026-07-17. Nature of suit: 835 Patent - Abbreviated New Drug Application(ANDA). Source: https://www.courtlistener.com/docket/73636400/novo-nordisk-inc-v-cipla-ltd/
Frequently asked
Where does this come from?
Public federal court dockets via CourtListener, filtered to nature of suit 835 (Patent, Abbreviated New Drug Application). Each entry links to its docket.
Does an entry say who will win?
No. It records that the suit was filed. No outcome, validity or infringement position is implied.