Tracking the most important health care lawsuits in U.S. courts today

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274 Cases
Case Update

May 8, 2025 | Third Circuit rejects AstraZeneca’s legal challenge to Medicare drug negotiation program.

How the Litigation Tracker Works

  1. Search for a lawsuit or issue More than 270 cases over 17 issues

  2. Explore related documentation Extensive library of key filing documents

  3. Learn the current status of the case Realtime case updates

  4. Read our analysis Read our take on the most pressing cases

Issues We’re Tracking

Our Team

We’re the experts on health care litigation. We’re here to make the process of navigating and understanding health care litigation easy.

Katie Keith

Director of the Center for Health Policy and the Law at the O’Neill Institute

Andrew J. Twinamatsiko

Director of the Center for Health Policy and the Law at the O’Neill Institute

Zach Baron

Director of the Center for Health Policy and the Law at the O’Neill Institute

Latest Updates

Key Dates

REACH Air Medical Services LLC v. Kaiser Foundation Health Plan Inc. et al.

Oral Argument

Seth Stern et al. v. JPMorgan Chase & Co. et al.

Motion to Dismiss Due

Catholic Medical Association v. U.S. Department of Health and Human Services et al.

Defendant Answer Due

Oregon Association of Hospitals and Health Systems v. State of Oregon, et al.

Oral Argument

State of Texas v. U.S. Department of Health and Human Services et al.

Combined Opposition to Motion to Dismiss and Cross-Motion for Summary Judgment Due

Commonwealth of Massachusetts et al. v. National Institutes of Health et al.

Appellees’ Response Brief(s) due

Association of American Medical Colleges et al. v. National Institutes of Health

Appellees’ Response Brief due

Association of American Universities et al. v. Department of Health and Human Services et al.

Appellees’ Response Brief due

Lewandowski v. Johnson and Johnson et al.

Reply in Support of Motion to Dismiss Due

Dayton Area Chamber of Commerce et al. v. Becerra et al.

Oral Argument

Cornerstone Credit Union League et al. v. Consumer Financial Protection Bureau et al.

Hearing on Joint Motion to Approve Consent Judgment and Plaintiffs’ Motion for Preliminary Injunction

Teva Pharmaceuticals USA, Inc. et al. v. Kennedy et al.

Government’s Reply in Support of Cross-Motion for Summary Judgment Due

Amgen Inc. v. Colorado Prescription Drug Affordability Review Board

Appellants’ Brief Due

American Public Health Association et al. v. National Institutes of Health et al.

Oral Argument

Commonwealth of Massachusetts et al. v. Robert F. Kennedy, Jr. et al.

Oral Argument

Kisting-Leung et al. v. Cigna Corporation et al.

Scheduling Conference

Do No Harm v. The University of Pennsylvania Health System

Answer/Response to Complaint Due

Kansas et al. v. United States of America et al.

Joint Status Report Due

Texas Medical Association et al. v. U.S. Department of Health and Human Services et al. (TMA III)

Appellants’ En Banc Brief Due

New York et al. v. Robert F. Kennedy, Jr. et al.

Defendant Answer Due

ManhattanLife Insurance and Annuity Company et al. v. U.S. Department of Health and Human Services et al.

Appellant’s Brief Due

American Association of University Professors-Harvard Faculty Chapter et al. v. U.S. Department of Justice

Oral Argument

ERISA Industry Committee v. U.S. Department of Health and Human Services et al.

Joint Status Report

American Association of Ancillary Benefits et al. v. Becerra et al.

Government Filing Due

State of Mississippi et al. v. Becerra et al.

Joint Status Report

Seyb v. Idaho Board of Medicine

Filing of Dispositive Motions Due

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