Writing & StyleStyle guide

PP Domain for Pharmacokinetic Parameters in FDA Study Data

FDA’s June 2026 guide gives explicit naming-consistency expectations for the PP pharmacokinetic-parameters domain relative to the CSR and PC domain.

Quick answer

FDA’s June 2026 guide says PP-domain visit naming should be consistent with the clinical study report and analyte naming should be consistent with the pharmacokinetic concentrations (PC) domain.

Key details

Core IssueFDA’s June 2026 guide gives explicit naming-consistency expectations for the PP pharmacokinetic-parameters domain relative to the CSR and PC domain.
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Important caveats

Scope Boundary

This is current FDA technical-conformance guidance for electronic study-data submissions; recheck the current FDA guide, supported standards, Data Standards Catalog, and eCTD specifications before relying on version-sensitive requirements.

Further guidance

Content

Keep PP visit names consistent with the clinical study report and PP analyte names consistent with the corresponding PC-domain data.

Purpose

Make pharmacokinetic parameter records easier to reconcile with both the CSR presentation and the underlying concentration data.

Sources and evidence

Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.

  1. Study Data Technical Conformance Guide - Technical Specifications Document (opens in a new tab)U.S. Food and Drug Administration · Current FDA technical specifications for standardized clinical and nonclinical study-data submissions, including reviewer guides, datasets and eCTD organization.

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