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In Vivo Assay for Detection of Antigen-specific T-cell Cytolytic Function Using a Vaccination Model
Published on: November 28, 2017
[Concepts for clinical testing of biological agents exemplified for vaccines]
1Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands. c.m.britten@lumc.nl
Abstract:
Biologics are a heterogeneous group of substances with unique characteristics that are clearly distinguishable from classical cytotoxic drugs. Current concepts for clinical oncology drug development are mostly based on experiences obtained with cytotoxic agents and therefore do not (or not properly) account for several aspects that are crucial when it comes to the use of new biologics. This can lead to extreme cases where new substances that clearly bear a potential of antitumor efficacy do not reach needed levels of significance in clinical trials or are never introduced to advanced stages of clinical testing at all. In order to increase the number of biologics that can be successfully led through all phases of clinical development the currently established standards will have to be reconsidered and modified in such a way that they meet the specific needs of the tested biologics. It is important to mention that such an agent-specific adjustment of clinical development paradigms does not mean that the currently demanded high standards of safety and quality will have to be lowered by any means. The most striking arguments for a new clinical development paradigm are exemplified for therapeutic tumor vaccines but also hold true for related biologics.
Insights
Clinical trial development standards need updating for biologics, distinct from cytotoxic drugs. Adapting these standards ensures promising antitumor therapies, like therapeutic vaccines, reach patients without compromising safety.
Area of Science:
- Oncology
- Pharmacology
- Biotechnology
Context:
- Classical cytotoxic drug development paradigms do not adequately address the unique characteristics of biologics.
- Current clinical trial standards, based on cytotoxic agents, may hinder the development of novel biologic therapies.
- Biologics, including therapeutic tumor vaccines, possess distinct properties requiring tailored clinical evaluation.
Purpose:
- To highlight the inadequacy of current clinical oncology drug development frameworks for biologics.
- To advocate for the reconsideration and modification of clinical development standards for biologics.
- To propose an agent-specific adjustment of clinical development paradigms to improve success rates for novel biologics.
Summary:
- Biologics differ significantly from cytotoxic drugs, necessitating revised clinical development approaches.
- Existing oncology drug development models fail to account for crucial aspects of biologic agents.
- Modifying clinical trial standards to meet the specific needs of biologics can enhance their successful progression through development.
Impact:
- Successful adaptation of clinical development paradigms will increase the number of biologics reaching patients.
- Revised standards will ensure promising antitumor biologics, such as therapeutic vaccines, achieve clinical significance.
- Maintaining high safety and quality standards is paramount during the adaptation of biologic development frameworks.
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