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THE MSL

Journal of the MSL Society

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Influence Without Authority: The Future Skill Set for Medical Science Liaisons

June 25, 2026
Author(s): Keith Willis

The Medical Science Liaison (MSL) role has relied on influence rather than authority. MSLs rarely control budgets or formal decisions, yet they play a critical role in shaping how organizations understand clinical practice, emerging research, and the needs of healthcare professionals. What is changing is the environment in which MSLs operate. Healthcare systems are more … [Read more...]

Navigating KOL Engagement During Healthcare Policy Transitions: Maintaining Scientific Dialogue Amid Coverage Uncertainty

December 1, 2025
Author(s): Keith Willis

Multiple healthcare policy changes are converging to create unprecedented uncertainty for key opinion leaders and their patients. HR 1 implementation beginning January 2027, and enhanced premium subsidies for ACA marketplace plans expire at the end of 2025. The Inflation Reduction Act's drug price negotiation program continues to reshape formulary decisions and prior … [Read more...]

Key Competencies for MSLs to Thrive as Strategic Business Partners

December 3, 2024
Author(s): Keith Willis

In today’s rapidly evolving pharmaceutical landscape, Medical Science Liaisons (MSLs) have transcended their traditional roles as scientific experts delivering data. Now recognized as strategic business partners, MSLs bridge the gap between science and business objectives. As organizations push for competitive advantage, MSLs must develop a diverse skill set that extends beyond … [Read more...]

From Expert to Educator: Training Techniques for Medical Science Liaisons

July 12, 2024
Author(s): Keith Willis

MSLs face unique challenges when they step into the role of trainer for sales representatives. MSLs are deeply knowledgeable about clinical information; they often have not been in sales which is very different from KOL engagements. MSLs are crucial in disseminating their knowledge to sales teams, ensuring that the information conveyed is accurate and compelling. Without … [Read more...]

Empowering MSLs: Keys to Organizational Influence

March 6, 2024
Author(s): Keith Willis

In the fast-changing world of the pharmaceutical industry, Medical Science Liaisons (MSLs) and Medical Affairs play a vital role. They are seen as the third pillar of organizations, alongside R&D and Commercial, according to the McKinsey 2025 Report. MSLs are key in connecting clinical developments to healthcare providers, focusing on patient outcomes, and shaping medical … [Read more...]

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