Medical Affairs Team

If a life sciences company were a band on tour, R&D would write the songs, Commercial would sell the tickets, and the Medical Affairs team would make sure the music is actually good, accurately described, and performed for the right audiencewithout accidentally turning the soundcheck into a sales pitch.

In plain English: Medical Affairs is the science-and-medicine function that generates, interprets, and communicates clinical and real-world evidence across a product’s lifecycle. It works with healthcare professionals (HCPs), researchers, payers, and internal teams to support appropriate use of therapies, answer tough questions, and bring insights from the real world back into the companyso decisions are smarter than “but the slide deck looked confident.”

What a Medical Affairs Team Actually Does (and What It Doesn’t)

The mission

A high-performing Medical Affairs organization is built around three big jobs: (1) evidence generation, (2) scientific exchange, and (3) medical insights. The goal is to translate data into practice-relevant knowledgehelping clinicians and decision-makers understand benefits, risks, patient selection, and how a therapy fits into guidelines and care pathways.

The “not this” list

Medical Affairs is not the “fancier sales team with lab coats.” The function should be oriented toward truthful, balanced, non-misleading scientific communication and appropriate engagement. In well-run companies, Medical Affairs has clear governance so that scientific exchange stays scientificand promotional activities stay where they belong.

Why Medical Affairs Exists: The Gap Between Trials and Real Life

Clinical trials answer essential questions, but they don’t answer every question. The day a product launches, a new set of questions shows up in clinics like uninvited guests who also want to rearrange your furniture:

• How does this perform in older adults, people with comorbidities, or diverse populations?
• What’s the real-world adherence pattern and what affects persistence?
• How does it compare in practice when clinicians must choose among multiple options?
• What happens when this is used alongside other therapies that weren’t common in pivotal trials?
• What evidence do payers need to evaluate coverage decisions?

Medical Affairs helps fill those gaps responsiblyby generating additional evidence, supporting medical education, and ensuring scientific discussions have the context clinicians need to judge strengths and limitations.

Core Medical Affairs Functions

1) Medical strategy and the Medical Plan

Medical Affairs often owns or co-owns a medical plan aligned to disease strategy and patient needs. That plan typically covers:

• Evidence gaps and research priorities
• Scientific communication strategy (congresses, publications, digital channels)
• Medical education approach (independent education support, scientific training)
• Stakeholder engagement plans (KOLs, institutions, payers, patient orgs)
• Insight collection and internal feedback loops

The best medical plans are not “a list of activities.” They’re a set of decisions: what matters most, why it matters, and how the team will measure impact.

2) Scientific exchange and external engagement (MSLs and beyond)

Field Medicalmost famously Medical Science Liaisons (MSLs)build peer-to-peer relationships with external experts and institutions. This isn’t about “dropping by with brochures.” It’s about:

• Discussing study data with appropriate context
• Understanding how experts view emerging science and unmet needs
• Gathering medical insights to inform research, education, and evidence plans
• Supporting investigator-initiated research (where appropriate) and collaborations
• Facilitating scientific discussions at congresses and clinical meetings

Good MSLs are translators: fluent in the language of trials and the language of clinical reality. Great MSLs are also great listenersbecause the insights are often in the “by the way…” part of the conversation.

3) Medical Information (MI): the “answer desk” with receipts

Medical Information teams handle questions from HCPs, patients, and internal partnersespecially when the question requires careful, referenced scientific support. MI builds and maintains:

• Standard response documents and scientific response letters
• Escalation pathways for complex inquiries
• Content governance to ensure accuracy, consistency, and compliance
• Tracking and trending so repeated questions become actionable insight

Think of MI as a combination of librarian, scientist, and air-traffic controller. The goal is to deliver the right information to the right person, in the right format, at the right timewithout improvising.

4) Evidence generation: RWE, HEOR, and post-approval studies

Medical Affairs frequently leads or partners on real-world evidence (RWE) and health economics and outcomes research (HEOR). Examples include:

• Observational studies using registries or claims data
• Prospective real-world studies to understand outcomes and safety in broader populations
• Comparative effectiveness research where appropriate
• Patient-reported outcomes and quality-of-life research
• Economic models and outcomes evidence that supports payer decision-making

A practical example: imagine a therapy with strong efficacy in trials, but payers want to understand budget impact and real-world utilization. Medical Affairs and HEOR teams can build the evidence package that speaks to both clinical value and system-level impactwithout pretending every patient is a perfectly adherent clinical trial superhero.

5) Publications and scientific communications

Publications teams turn research into peer-reviewed articles, abstracts, posters, and congress materialswhile following recognized standards for transparency, authorship, and ethical reporting. Common responsibilities:

• Publication strategy and long-range planning aligned to evidence priorities
• Journal and congress targeting based on audience and scientific fit
• Publication development processes (timelines, reviews, disclosures)
• Authorship and contributor documentation consistent with journal expectations

Publications is where Medical Affairs proves it can do more than talk about scienceit can help science travel safely through peer review without losing its passport (or its integrity).

6) Medical education and congress strategy

Medical Affairs often builds scientific narratives for medical education and professional meetings:

• Congress planning: data readouts, booth science support, scientific sessions
• Medical education: needs assessments, content development, and support of independent education
• Speaker training on scientific content (within appropriate boundaries)
• Advisory boards designed to gather expert input ethically and effectively

7) Governance, compliance, and the “Med-Legal-Regulatory” handshake

In regulated industries, Medical Affairs success depends on strong governance. Many companies rely on review committees (often called MLR) and documented processes to ensure materials and communications meet regulatory expectations. This isn’t bureaucracy for sportit’s how you keep scientific exchange credible and protect patient trust.

Typical Roles on a Medical Affairs Team

Titles vary by company size and therapeutic area, but a typical Medical Affairs organization may include:

• Head of Medical Affairs / Medical Director – sets strategy, governance, and priorities
• Medical Affairs Physician Leaders – clinical leadership, strategy, and external credibility
• Medical Science Liaisons (MSLs) – field-based scientific exchange and insights
• Medical Information Specialists – scientific responses and content stewardship
• HEOR/RWE Leads – outcomes evidence, economic value, and real-world studies
• Publications/Scientific Communications – publication planning and congress deliverables
• Medical Operations – processes, systems, training, vendors, budget, and analytics
• Patient Engagement / Advocacy Liaison – stakeholder partnerships and patient-centered work
• Medical Training – internal scientific training for cross-functional teams

How Medical Affairs Collaborates Across the Company

Medical Affairs is a “connector” function. Here’s how collaboration typically works when done well:

With Clinical Development

Medical insights can influence trial design, endpoint choices, site feasibility, and patient selection criteria. It’s the difference between “a beautiful protocol” and “a protocol that won’t make clinicians cry.”

With Commercial

There can be healthy collaboration, especially around disease education and understanding stakeholder needs, while maintaining appropriate separation. Medical Affairs supports scientific understanding; Commercial supports promotional strategy. If those lines blur, everyone losesespecially credibility.

With Market Access

Payers and health systems often need clinical and economic evidence presented in structured formats. Medical Affairs and HEOR may contribute to payer evidence packages (like dossiers) and scientific discussions that help decision-makers assess value and outcomes.

With Pharmacovigilance and Safety

Safety information needs to move quickly and accurately. Medical Affairs helps ensure external discussions about safety signals or labeling updates are evidence-based and consistent.

Deliverables You Can Expect from a Strong Medical Affairs Team

• Medical plan and evidence generation plan aligned to lifecycle priorities
• Scientific platforms and core data narratives (not hypecontext)
• Medical information response documents and inquiry trend reports
• Publications plan with timelines, authorship strategy, and transparency steps
• Congress execution including scientific booth support and compliant materials
• Advisory boards and insights summaries with clear actionability
• RWE/HEOR studies and outcomes evidence packages for stakeholders
• Training for internal teams so science stays accurate across touchpoints

KPIs That Matter (and the Ones That Mostly Just Look Busy)

Measuring Medical Affairs impact is tricky. Counting activities is easy; measuring outcomes is better. Consider a balanced scorecard:

• Insight quality: Are insights actionable and used in decisions?
• Evidence delivery: Are key studies executed on time and filling defined gaps?
• Scientific engagement: Are interactions peer-level and valued by stakeholders?
• Medical Information performance: Response quality, timeliness, and consistency
• Publication integrity and output: Timelines, transparency, adherence to standards
• Compliance health: Findings, training completion, process adherence

If your KPI is “number of meetings attended,” congratulationsyou have measured oxygen consumption. Try to measure what changed because you showed up.

How to Build (or Fix) a Medical Affairs Team

Start with the disease and the evidence gaps

The most effective Medical Affairs organizations map out unmet needs and evidence gaps, then build programs backward from those needs. If you begin with “we should do a webinar,” you’ve already lost the plot.

Design governance that supports speed and quality

Build clear processes for content development, review, medical information escalations, congress execution, and insight management. The goal is not “more approvals.” The goal is fewer surprises.

Invest in capabilities

• Scientific communication skills (clear writing, data interpretation, audience adaptation)
• Operational excellence (planning, vendor management, analytics)
• Stakeholder engagement and listening skills
• Medical governance literacy (what’s appropriate, what’s risky, what’s documentable)
• Data fluency (RWE basics, study design literacy, statistics comfort)

Use technology thoughtfully

Tools can help track inquiries, manage content, capture insights, and coordinate field engagement. But no system fixes unclear strategy. Technology should amplify good processesnot replace them.

Common Challenges (and How Teams Work Through Them)

Challenge: Confusing “scientific exchange” with “promotion”

Fix: Clarify roles, build training, document engagement standards, and keep review processes strong. When in doubt, bias toward clarity, context, and non-misleading communication.

Challenge: Too many requests, not enough prioritization

Fix: Tie work to evidence gaps and patient impact. Use a transparent prioritization framework. If everything is a priority, nothing is.

Challenge: Insights get collected…and then disappear

Fix: Create insight “closed loops.” Define what qualifies as an insight, who owns follow-up, and how decisions get documented. Insights without action are just expensive anecdotes.

Conclusion: The Medical Affairs Team as the Company’s Scientific Compass

A great Medical Affairs team makes science usable. It builds evidence where uncertainty exists, communicates with integrity, and helps the organization listen to the medical community rather than simply talk at it. When done well, Medical Affairs becomes the function that keeps decisions grounded in data, patients, and real clinical practiceso the company can move fast and stay credible. That’s not just good governance; it’s good medicine.

Experiences From the Field: What Medical Affairs Work Feels Like

Ask ten people what it’s like to work in Medical Affairs and you’ll get ten versions of the same theme: “It’s a lot of science, a lot of people, and a surprising amount of project management.” The day-to-day rhythm often lives somewhere between deep clinical discussions and practical problem-solving.

One experience many teams recognize is the launch-season sprint. Before a product launch (or a new indication), Medical Affairs is often building a medical plan, aligning on the scientific narrative, and preparing for questions that will hit fast and hard. Medical Information drafts responses for anticipated inquiriesdosing nuances, patient selection, safety considerations, and comparisons clinicians will naturally ask about. Field Medical trains on the data so discussions stay consistent and evidence-based. Publications may be coordinating abstracts so key data are visible at major congresses. It can feel like preparing for a big exam where the questions are written by thousands of smart clinicians who don’t share their study guide.

Another common experience is the “insight avalanche”. MSLs return from a congress with dozens of stakeholder conversations. Themes emerge: a subgroup where clinicians see unmet need, a practical barrier to adoption (like infusion chair time or lab monitoring), or a new competitor’s data shifting the treatment sequence. The best moments are when those insights change something tangiblelike prompting an outcomes study, refining a medical education topic, or improving how adverse event information is explained. The frustrating moments are when insights are captured but not acted on, often because nobody owns the next step. Many teams learn (sometimes the hard way) that insight management is not a spreadsheetit’s a workflow with accountability.

Medical Affairs also lives in the world of careful language. There’s a skill to answering a complex clinical question with the right level of detail, the right context, and the right boundaries. A strong Medical Information response doesn’t just cite a study; it explains limitations and applicability. A strong MSL discussion doesn’t just repeat endpoints; it explores what the endpoints mean in real practice, what remains unknown, and what research is still needed. Over time, many Medical Affairs professionals develop a “truth reflex”: the habit of pausing to ask, “Is this accurate? Is it complete? Is it potentially misleading without context?” It’s less glamorous than a blockbuster headline, but it’s the kind of professionalism stakeholders remember.

One of the most rewarding experiences tends to be watching evidence shape care. This can be as simple as seeing a well-designed real-world study answer a question that clinicians have been debating, or as significant as a publication contributing to guideline updates. It’s also rewarding when Medical Affairs helps internal teams understand the patient journey more clearlyturning “the market” into real people with real constraints. In those moments, Medical Affairs acts as a bridge: translating scientific evidence into decisions that can genuinely improve outcomes.

And yes, there are also the less poetic experienceslike trying to schedule an advisory board across time zones, or reconciling five versions of a slide deck where each reviewer is correct in a different way. Medical Affairs work often teaches patience, clarity, and the underrated art of writing an email that prevents three more meetings. Over time, the job becomes a craft: balancing rigor with practicality, speed with governance, and confidence with humility. If that sounds like a lot, it is. But for people who love science and want it to land in the real world, Medical Affairs can be the sweet spot.