Related Experiment Video
Updated: Feb 16, 2026

07:42
Patient-Derived Tumor Explants As a "Live" Preclinical Platform for Predicting Drug Resistance in Patients
Published on: February 7, 2021
5.9K
Surrogate end points: hopes and perils
Ariel Alonso1, Geert Molenberghs
1Center for Statistics, Hasselt University Building D, 3590 Diepenbeek, Belgium. ariel.alonso@uhasselt.be.
Expert Review of Pharmacoeconomics & Outcomes Research
|June 10, 2010
Summary
Surrogate end points improve clinical trial efficiency and reduce costs. This discussion focuses on validation strategies for these crucial markers in drug development.
Area of Science:
- Clinical Pharmacology
- Biostatistics
- Drug Development
Background:
- Rising drug development costs necessitate greater efficiency in candidate selection.
- Surrogate end points offer potential to shorten clinical trials and mitigate ethical concerns associated with direct clinical outcome measurement.
- Historical controversies surrounding surrogate end points underscore the need for rigorous validation.
Purpose of the Study:
- To discuss proposed validation strategies for surrogate end points.
- To explore the future role and application of surrogate end points in clinical research.
Main Methods:
- Review of recently proposed validation strategies for surrogate end points.
- Discussion of the evolving landscape and future directions for surrogate end point utilization.
Main Results:
- Growing consensus favors the use of only validated surrogate end points.
- Emerging validation strategies aim to enhance the reliability and acceptance of surrogate end points.
Conclusions:
- Validated surrogate end points are essential for efficient and ethical clinical trials.
- Continued development and application of robust validation methods will shape the future of drug development.
Related Concept Videos
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
488
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
488
Kaplan-Meier Approach
634
The Kaplan-Meier estimator is a non-parametric method used to estimate the survival function from time-to-event data. In medical research, it is frequently employed to measure the proportion of patients surviving for a certain period after treatment. This estimator is fundamental in analyzing time-to-event data, making it indispensable in clinical trials, epidemiological studies, and reliability engineering. By estimating survival probabilities, researchers can evaluate treatment effectiveness,...
634
Psychosurgery
1.9K
Psychosurgery, the surgical alteration or permanent removal of brain tissue to alleviate severe psychological conditions, stands as one of the most radical and controversial treatments in the history of mental health care. Its development and application have evolved significantly, marked by dramatic shifts in scientific understanding and ethical perspectives.
Historical Development of Psychosurgery
In the 1930s, Portuguese neurologist Antonio Egas Moniz introduced a surgical procedure designed...
Historical Development of Psychosurgery
In the 1930s, Portuguese neurologist Antonio Egas Moniz introduced a surgical procedure designed...
1.9K
Guidelines for Writing Outcome
4.1K
When developing expected outcomes for a patient care plan, the nurse should adhere to the following recommendations:
Patient outcomes reflect the patient's response to the goal rather than what the nurse aims to achieve. Terminology should be observable and measurable to avoid the reader's interpretation. The desired outcome should be realistic and achievable in the designated care timeframe. Expected outcomes should align with adjunctive therapies. The outcome should enhance care...
Patient outcomes reflect the patient's response to the goal rather than what the nurse aims to achieve. Terminology should be observable and measurable to avoid the reader's interpretation. The desired outcome should be realistic and achievable in the designated care timeframe. Expected outcomes should align with adjunctive therapies. The outcome should enhance care...
4.1K
Assumptions of Survival Analysis
438
Survival models analyze the time until one or more events occur, such as death in biological organisms or failure in mechanical systems. These models are widely used across fields like medicine, biology, engineering, and public health to study time-to-event phenomena. To ensure accurate results, survival analysis relies on key assumptions and careful study design.
438

