---
title: >-
  An Analytic Method to Weight Longitudinal Treatment Patterns for Visualization
  with Sankey Diagrams
description: >-
  Explore this publication on real-world evidence: An Analytic Method to Weight
  Longitudinal Treatment Patterns for Visualization with Sankey Diagrams..
date: '2023-01-01'
author: Catherine Wiener
category: Publications
tags:
  - ICPE
  - Approval & Commercialization
  - 'Yes'
  - Oral Presentation
  - Methods/Pharmacoepi
  - R&D
canonical_url: >-
  https://www.headwaterscience.com/resources/publications/icpe/an-analytic-method-to-weight-longitudinal-treatment/
source: Headwater Science
license: © 2026 Headwater Science. All rights reserved.
slug: an-analytic-method-to-weight-longitudinal-treatment
id: 3TyvLY0lgHd6S8Y0Mpiqdv
contentType: article
---

## Challenge

Longitudinal treatment pattern data are inherently complex and difficult to visualize in ways that communicate clinical trajectories clearly to clinical and regulatory audiences.

## Solution

Target RWE researchers developed and presented an analytic method for weighting longitudinal treatment patterns to generate interpretable Sankey diagrams adjusted for informative censoring and time-varying confounding.

## Impact

Providing a validated method for visualizing weighted longitudinal treatment patterns enables Target RWE and pharma partners to communicate complex treatment journey data to clinical, regulatory, and payer audiences.

## Use Cases / Links

Weighted Sankey diagram methodology for longitudinal treatment pattern visualization in pharma partner programs, Treatment journey communication tool for clinical, regulatory, and payer audiences