Evidence Planning 101

A guide to delivering the right evidence, to the right stakeholders, at the right time.

Evidence Planning 101

EVIDENCE
PLANNING
101

Building an Integrated Evidence Plan

A Guide to Delivering the Right Evidence, to the Right Stakeholders, at the Right Time

Chapter 01

The short version

An integrated evidence plan is one cross-functional plan for all the evidence a product needs across its lifecycle.

It sets out which evidence each stakeholder needs, why, and by when. It brings clinical development, medical affairs, HEOR, market access, and commercial teams together around one set of priorities. Generating evidence is slow and expensive, so the plan matters as much as the studies in it.

Key takeaways
01

Start planning about three years before the evidence is needed.

02

For every evidence need, ask four questions: who, why, when, and what if.

03

Prioritize gaps by their impact on decisions and patient outcomes, not by completeness of knowledge.

04

Measure success by the change the evidence creates, not just by whether the study was completed.

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Chapter 02

Why an integrated plan matters

Every stakeholder needs different evidence to make its decisions.
A plan built by one function tends to miss what the others need.

Regulators

Evidence beyond the pivotal trial, especially for expedited approvals

Payers

Evidence that meets varying regional and local requirements for access

Clinicians

Evidence to choose among a growing number of treatment options

Patients

Evidence on quality of life to support shared decisions

Policymakers

A clearer picture of unmet patient need

The company

Evidence for a differentiated value proposition across the lifecycle

What integration delivers

Alignment across functions and stakeholders

Fewer gaps missed through siloed thinking

Less duplication, and one study meeting several needs

A shared basis for deciding which research to decline

The evidence plan should be part of the medical, access, and commercial plans, not a separate workstream.

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Chapter 03

Planning across the lifecycle

Most evidence needs are predictable. They cluster around three milestones.

Approval

For example, effectiveness across diverse patient populations beyond the trial

Access

For example, budget impact for formulary committees

Adoption

For example, data ready for scheduled clinical guideline updates

Development

Unmet need, disease burden, standard of care, trial design, target populations, PROs

Launch

Budget impact, post-marketing commitments, early utilization

Growth

Real-world effectiveness, adherence, comparative effectiveness, subpopulations

Maturity

New formulations and indications, effects of switching, response to new competition

Who leads?

Evidence planning is cross-functional by design. It can be led by Medical Affairs, HEOR, or a dedicated evidence function. Clinical development, regulatory, market access, commercial, and patient engagement all contribute.

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Chapter 04

Four questions for every evidence need

Evidence of real value starts with asking the right questions.

Who?

Who is the primary audience, and who else will value the information? What do they believe and know today, and which sources do they trust?

Why?

Why will this evidence matter to them, and how will it change their decisions or practice? Could one study meet several needs?

When?

Exactly what is needed, and by when? What change are you trying to create, and in what sequence should the evidence arrive?

What if?

What happens if the evidence is late or doesn't answer the question? Is there a faster alternative, and is your company the right group to generate it?

Start with the end in mind. Evidence only delivers its value if it is available when the decision is made.
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Chapter 05

Prioritizing evidence gaps

Not every gap is worth filling. The test is whether closing it changes strategy, practice, or patient care.

Valued evidence Completeness of knowledge

Analyzing outcomes by mutation to see how it affects disease course and treatment response

Profiling mutations already shown not to affect outcomes

Surveying members of a patient organization about their experience of care

Asking clinicians what they think patients experience

Start with the patient journey

Map the path from first symptoms to long-term care, with patient input. Then ask where new evidence would most improve:

Awareness and diagnosis

Initial treatment choice

Access to treatment

Patient experience and outcomes

Weigh strategic value for the company alongside short- and long-term benefit for patients. Some needs can be met quickly even if their
impact is smaller.

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Chapter 06

Ways to fill a gap

A gap doesn't automatically call for a new company-sponsored trial. Depending on the question and timing, existing data or a more pragmatic approach may work better. Check what your stakeholders actually find compelling before choosing.

Registry analysis Health record review Meta-analysis Post-hoc analysis Ethnographic research Investigator-initiated study
Sponsored trial

The company defines and manages everything. Full strategic alignment, highest investment.

Research collaboration

Company and partner contribute roughly equally, drawing on each other's strengths.

Investigator-initiated

The investigator proposes and runs the study. The company provides agreed support.

Is new evidence really needed?

Low confidence in a therapy isn't always caused by missing data. Sometimes the data exists but hasn't reached the audience: publications only in English, messages aimed only at congress audiences. Presenting existing evidence locally, in plain language and in the channels clinicians already use, can close the gap faster.

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Chapter 07

Keeping the plan adaptive

A plan is not fixed. Its success lies in the outcomes it achieves, not in delivering it as written.

Review the plan regularly and whenever the environment changes.
Four kinds of change most often call for an update.

Competitive landscape

A new mechanism of action, a safety event in a similar product, a product withdrawal

Standards and guidelines

Planned guideline updates, HTA assessments, new screening or coding

Policy environment

New federal policies, pricing evidence standards, or gatekeeping

Independent research

External data that fills a gap or challenges established thinking

Build in the habits

Agree the strategy and critical success factors, and track progress against them.

Plan scenarios for delays, and be ready to change course if a project isn't delivering.

Debrief after each project and communicate plan changes promptly.

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Chapter 08

From outputs to impact

Delivering evidence on time is essential, but it is only the first measure of success. The value grows as you move along the results chain.

OutputThe work was delivered

For example, the study was completed.

OutcomeThe evidence was used

For example, clinician education was updated to include it.

ImpactPractice changed

For example, better treatment sequencing improved outcomes.

01

Establish the baseline

What do stakeholders know, believe, and do today?

02

Agree the target change

Set it with cross-functional input, and check it is realistic given external factors.

03

Track the change

Use ongoing insights and markers such as guideline or formulary changes.

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Chapter 09

FAQs

How is an integrated evidence plan different from an evidence strategy?

The evidence strategy defines what proof the product needs and why. The integrated evidence plan turns that into specific activities, owners, timelines, and budgets across functions. You need the strategy first. The plan makes it happen.

Strategy decides what to prove. The plan decides how and when.

When should we start?

A good rule of thumb is to start about three years before the evidence is expected to be needed. Many needs around approval, access, and adoption can be anticipated from experience. Longer studies, registries, and partnerships need the most lead time.

If a decision is three years away, the planning is already due.

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Chapter 09  ·  continued

Who should own the plan?

The plan is cross-functional, and it can be led by Medical Affairs, HEOR, or a dedicated evidence function. What matters most is that one lead is accountable, every relevant function contributes, and senior leadership visibly supports cross-functional collaboration.

One accountable lead, many contributors.

When does an investigator-initiated study make sense?

When it addresses a priority gap with genuine scientific merit, especially questions from everyday clinical practice or populations trials don't cover. The investigator is responsible for design and conduct. Agree roles, safety reporting, compliance, and data ownership before the study starts.

Investigator-initiated studies work best when they fit the plan's priorities.

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Let's Build the Plan

At Alkemi, we help biotechnology and pharmaceutical companies build integrated evidence plans that connect clinical, medical, HEOR, access, and commercial needs. We identify and prioritize evidence gaps, map them to the decisions they must inform, and help teams keep the plan current as the landscape changes.

If your functions are each building their own evidence plans, or you're not sure what evidence you'll need three years from now, let's talk.