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

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297 Cases
Case Update

October 6, 2025 | Third Circuit rejects 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

Latest Updates

Key Dates

Harris County, Texas et al. v. Kennedy et al.

Defendants’ Motion to Dismiss Due

Estate of Gene B. Lokken et al. v. UnitedHealth Group, Inc. et al.

Parties Meet and Confer

Chavez-DeRemer v. Suffolk Administrative Services, LLC. et al.

Reply to Motion to Dismiss Due

State of Washington et al. v. Department of Health and Human Services et al.

Response To Motion For Preliminary Injunction Due

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

Oral Argument

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

Oral Argument

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

Oral Argument

Berton v. Aetna Inc. et al.

Hearing on Motion for Class Certification

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

Plaintiff’s Response to Petition for Rehearing Due

Community Insurance Company v. HaloMD, LLC et al.

Defendants’ Motion to Dismiss Due

Commonwealth of Pennsylvania, et al. v. Trump, et al.

Defendants’ Opening Brief Due

Commonwealth of Massachusetts et al. v. Kennedy et al.

Plaintiffs’ Response Brief Due

Planned Parenthood Federation of America, Inc. et al. v. Kennedy et al.

Oral Argument

Welty et al. v. Dunaway et al.

First Brief Due

City of Columbus et al. v. Kennedy et al.

Defendant’s Response Due

Chavez-DeRemer v. Suffolk Administrative Services, LLC.

Proposed Intervenors’ Opening Brief Due

Healthcare Distribution Alliance v. Boughton et al.

Defendants’ Response to Motion for Preliminary Injunction Due

Association for Accessible Medicines v. Boughton et al.

Defendants’ Response to Motion for Preliminary Injunction Due

Blue Cross Blue Shield of Texas v. HaloMD LLC

Response to Amended Complaint due

G.H. et al v. University of California Board of Regents et al.

Scheduling Conference

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

Joint Status Report Due

Blue Cross Blue Shield Healthcare Plan of Georgia, Inc. v. HaloMD, LLC et al.

Defendants’ Reply Re: Motion to Dismiss Due

Barrows et al v. Humana, Inc.

Joint Status Report Due

Association for Accessible Medicines v. Raoul

Status Hearing

Aetna Health Inc. et al. v. Radiology Partners, Inc. et al.

Plaintiff’s Response Re: Motion to Dismiss Due

Uriel Pharmacy Health and Welfare Plan et al. v. Advocate Aurora Health, Inc. et al.

Telephonic Status Conference

State of Mississippi et al. v. Kennedy et al.

Joint Status Report Due

State of Colorado et al. v. Department of Health and Human Services et al.

Answer Due

Anthem Blue Cross Life and Health Insurance Company et al. v. HaloMD LLC et al.

Defendants’ Response to Amended Complaint Due

State of California et al. v. Kennedy et al.

Defendants’ Certification of Administrative Record Due

American Association of University Professors et al. v. Department of Justice et al.

Defendants’ Response Brief Due

United States ex rel. Shea v. eHealth, Inc. et al.

Defendants’ Reply Re: Motion to Dismiss Due

Pharmaceutical Research and Manufacturers of America v. Rhonda Chakolis, et al.

Pretrial Conference

Amgen, Inc. et al. v. Mizner et al. II

Scheduling Conference

St. Luke’s Health System, LTD. v. Labrador

Plaintiff’s Expert Disclosure Due

Data Marketing Partnership, LP v. Department of Labor et al.

Plaintiff’s Motion for Summary Judgement Due

Do No Harm et al v. David Geffen School of Medicine at UCLA et al.

Dispositive Motions Due

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