Related Experiment Video
Updated: May 26, 2025

Author Spotlight: Developing a Disposable Dosator for Preclinical Testing of Dry Powder Inhalers in Small Animal Models
Published on: August 18, 2023
Dose Determinations at Drug Approval Reviews: FDA-Approved Drugs in Past 5 Years
1Laboratory of Pharmaceutical Regulatory Science, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan.
Drug dose adjustments are common during Food and Drug Administration (FDA) reviews. Factors like accelerated approval and safety data influence dose modifications for new molecular entities (NMEs).
Area of Science:
- Pharmacology
- Drug Development
- Regulatory Science
Background:
- Drug dose appropriateness is a critical aspect of regulatory review.
- Understanding dose modifications during drug approval is essential for optimizing therapeutic outcomes.
Purpose of the Study:
- To analyze dose changes between proposed and approved New Molecular Entities (NMEs) during Food and Drug Administration (FDA) reviews.
- To identify factors associated with dose modifications and postmarketing study requests.
Main Methods:
- Analysis of 218 NMEs approved between 2018 and 2022.
- Utilized multinomial logistic regression to explore factors influencing dose modifications.
- Examined dose changes, including downward and upward adjustments, and postmarketing assessments.
Main Results:
- 13% of NMEs had dose modifications or required postmarketing assessments.
- Accelerated Approval and safety-related dose-exposure relationships increased downward modifications.
- Pharmacodynamic biomarkers and Priority Review designation decreased downward modifications.
- Infectious disease drugs showed more upward dose modifications.
Conclusions:
- Dose optimization frequently occurs during FDA drug reviews.
- Product characteristics and regulatory process factors influence dose modification decisions.
- Compelling evidence and data availability are key considerations in dose determination.
More Related Videos
09:24Application and Methodology of the Non-destructive 19F Time-domain NMR Technique to Measure the Content in Fluorine-containing Drug Products
Published on: August 22, 2017
04:22Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals
Published on: March 30, 2017
Related Concept Videos
Drug Regulation
Dosage Regimen: Fixed Dose
Fixed-dose regimens can be used for various routes of administration, including intravenous (IV) injections and oral medications. For IV administration, a predetermined amount of the drug is...
Renal Failure: Dose Adjustments
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Drug Dosage Regimen: Overview
Typically, the starting dose and dosing interval are guided by the manufacturer's recommendations based on clinical trials conducted during and after drug...
Rational Dosage Regimen: Maintenance Dose and Loading Dose
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
Factors Affecting Drug Response: Overview