# Evidence gap map
> What you have vs what payers and HTA are likely to ask, with a literature review underneath.
Source: https://www.visfo.health/projects/evidence-gap-analysis
Tags: Sprint

_What you have vs what payers and HTA are likely to ask, with a literature review underneath._

We run a targeted literature review, or support a systematic review to the agreed protocol and scope, map what you have against what payers and HTA agencies are likely to ask, score the gaps and hand over a ranked study shortlist with sizing, feasibility and a recommended sequence.

## What it is

A literature review run to a defined question, targeted or systematic depending on the agreed protocol and scope, mapped against what payers and HTA agencies are likely to ask, with the gaps scored and a ranked study shortlist that closes the ones worth closing.

Built for HEOR and access teams that need a defensible answer to 'what evidence are we missing?' before commissioning a study programme, and the discipline to commission against the answer rather than the wish list. Timing depends on the review type, the size of the literature base and the review requirements.

## How we run it

1. **Frame** — Agree the PICO, the review type and protocol, the agencies and payers the evidence has to satisfy, and the decisions each gap could move.

2. **Ingest** — Run the review through the agreed search, screening and extraction protocol; pull comparator data, regulatory precedent and prior decision rationales alongside.

3. **Synthesise** — Map evidence against expectation, score gaps on strength, decision-maker challenge profile and economic stake, then size, feasibility-check and rank the studies that close them.

4. **Deliver** — Ship the written report, the structured gap register and a ranked study shortlist with sizing, feasibility and a recommended sequence.

## What you get

- Literature review report with full search and screening provenance, to the agreed protocol

- Evidence vs demand map per agency and payer

- Gap register scored on strength, challenge profile and economic stake

- Ranked study shortlist with sizing, feasibility and sequence

- Working read-out for HEOR and access leadership