1. Pink Sheet
  2. >>Geography
  3. >>North America
  4. >>United States

Enriched Trials Not Just About Marker-Positive Patients, FDA Says

 
• By Cathy Dombrowski

Without clear-cut evidence that a drug will not work in patients without a predictive marker, enrichment strategies should allow for collecting some data in the marker-negative population, FDA says in draft guidance.

Information about a drug’s effect in patients without a characteristic that predicts efficacy can be just as important as the data for those with the predictive marker when trying to prove that marker’s value.

FDA makes this case in its draft guidance on “Enrichment Strategies for Clinical Trials To Support Approval of Human Drugs and Biological Products.”

Read the full article – start your free trial today!

Join thousands of industry professionals who rely on Pink Sheet for daily insights

  • Start your 7-day free trial
  • Explore trusted news, analysis, and insights
  • Access comprehensive global coverage
  • Enjoy instant access – no credit card required
Start Free Trial

Already a subscriber?

More from United States

US Most Favored Nations Policy: Higher Drug Spending In Germany Is ‘Difficult To Imagine’

 
• By Francesca Bruce

Germany’s federal health care decision-making body, the G-BA, tells the Pink Sheet that German drug prices are fair and speculation of price rises in the market due to the US MFN policy is fear mongering.

BIOSECURE Act Returning, Privacy, Gain-of-Function Bills Coming, Senate Sponsor Says

 
• By Laura Helbling

Legislation prohibiting work with certain Chinese biopharma firms will be reintroduced soon, Democratic Sen. Gary Peters said. And it will not be the only bill tied to international biotech competition and security concerns that will be considered.

Pharma DTC Ad Tax Break Targeted By US HHS, Congress

 
• By Derrick Gingery

Health and Human Services Secretary Robert F. Kennedy Jr. said a policy that would remove the tax write-off for pharma advertising expenses would be coming in a few weeks.

Pink Sheet Podcast: US FDA’s Big Vaccine Policy Week

 
• By Derrick Gingery, Sarah Karlin-Smith, Sue Sutter, and Nielsen Hobbs

Pink Sheet reporter and editors discuss the new clinical trial requirements that the FDA announced for COVID-19 vaccines, the updated label for Novavax’s newly approved COVID-19 vaccine, and other vaccine-related events that were part of a busy week for policy in the sector.

More from North America

US FDA Punts On New COVID-19 Framework’s Impact On Fall Shots

 
• By Sarah Karlin-Smith

The FDA’s advisors split on whether to update COVID-19 vaccines for the fall. The agency refused to discuss the impact of the new vaccine framework on availability.

Sarfez Pharma’s Promotional Claims For Diuretic Soaanz Draw US FDA Warning Letter

 
• By Sue Sutter

Webpages, a healthcare professional pamphlet and a medical conference exhibit booth panel make unsupported comparative superiority claims about generic torsemide products and misrepresent risks, the Office of Prescription Drug Promotion says in its first warning letter of 2025.

MAHA Commission Outlines Enhanced Research On Drug Safety In Children

 
• By Cathy Kelly

Research would include initiatives on reproducing industry-sponsored studies, postmarket surveillance, and studies of long-term neurodevelopmental and metabolic outcomes for commonly prescribed pediatric drugs.