Treehill Partners Experts Featured in FirstWord Report on Biomarkers in Rare Disease Therapies

Treehill Partners Experts Featured in FirstWord Report on Biomarkers in Rare Disease Therapies

We’re pleased to share that Donald White (Head of Translational Science) and Mark Mayhew (Head of Portfolio Strategy) of Treehill Partners contributed their expertise to FirstWord’s September 2025 ExpertViews Report: “Biomarkers and Diagnostics: Foundations for Rare Disease Therapies.”

About the Report

The comprehensive report examines how biomarkers and diagnostics serve as the foundation for developing therapies for rare diseases—a market valued at $224 billion in 2024 and projected to reach $527 billion by 2034.

Key Areas of Treehill Expertise

Our experts provided insights across the drug development lifecycle, addressing:

Strategic Development Considerations:

  • The critical role of biomarkers from early drug discovery through regulatory approval and market access
  • How biomarkers can accelerate clinical trial processes by approximately 50%, reducing timelines from five years to 2.5 years
  • The importance of integrating biomarker strategy early in development programs

Validation and Implementation Challenges:

  • Technical and strategic considerations for biomarker qualification in small, heterogeneous rare disease populations
  • The evolving regulatory landscape, noting the FDA’s more advanced guidance compared to EMA requirements
  • Real-world applications in conditions like ALS, where biomarker validation supports faster patient recruitment and earlier treatment access

Future Opportunities:

  • The transformative potential of AI/ML and multiomics approaches in biomarker discovery
  • How disease-agnostic biomarkers can address the needs of over 500 million people globally affected by rare diseases
  • The critical importance of industry investment and public-private consortia to advance the field

Market Context

The report highlights that 52% of all drugs approved in 2024 targeted rare diseases, with 35% of the biological pipeline consisting of rare disease projects—underscoring significant industry momentum and the growing importance of sophisticated biomarker strategies.

Industry Leadership

Don and Mark’s contributions reflect Treehill Partners’ unique approach: integrating drug development expertise with corporate development strategy to help companies optimize the commercial relevance, transactability, and fundability of their rare disease programs.


Full Report Details:
FirstWord ExpertViews Report: “Biomarkers and Diagnostics: Foundations for Rare Disease Therapies”
Published: September 2025
Learn more about & obtain the report here

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