Related Experiment Video
Updated: May 18, 2026

09:07
Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations
Published on: September 16, 2015
A theoretical framework for early human studies: uncertainty, intervention ensembles, and boundaries
1Biomedical Ethics Unit/Experimental Medicine, McGill University, 3647 Peel Street, Montreal, QB H3A 1X1, Canada. jonathan.kimmelman@mcgill.ca
Trials
|September 25, 2012
Summary
This study introduces a framework for early phase clinical trials to navigate methodological and ethical challenges. It helps researchers understand intervention ensembles, risks, and benefits for novel therapeutics development.
Area of Science:
- Drug development
- Clinical research methodology
- Bioethics
Background:
- Early phase clinical trials are critical for novel therapeutics but present significant methodological and ethical challenges.
- Researchers face uncertainty regarding outcomes, probabilities, and operational dimensions in early drug development.
- Existing frameworks may not adequately address the complexities of navigating uncertainty in early human studies.
Purpose of the Study:
- To propose a theoretical framework for early human studies to address methodological and ethical challenges.
- To guide researchers in transforming uncertainty into evidence regarding risk and benefit.
- To inform the development and optimization of intervention ensembles in early clinical trials.
Main Methods:
- The framework focuses on identifying operation dimensions that form an intervention ensemble.
- It aims to determine the probability of achieving target outcomes with specific intervention ensembles.
- The methodology involves defining the boundaries of dimension values, including inactive or excessive doses, within an intervention ensemble.
Main Results:
- Early human trials, guided by this framework, can establish grounds for belief about the risk-benefit profile of intervention ensembles.
- The framework facilitates the discovery and delimitation of effective intervention ensembles.
- Examples illustrate the practical application of the framework in defining intervention parameters.
Conclusions:
- The proposed framework offers a structured approach to managing uncertainty in early clinical development.
- It has implications for enhancing the ethics, methodology, and efficiency of novel therapeutic development.
- Implementing this framework can lead to more robust and informative early phase clinical trials.
More Related Videos
Related Concept Videos
Self Within Cultural Contexts
Cultural frameworks for understanding the self are often categorized into two broad orientations: individualism and collectivism. These paradigms influence how people define themselves, relate to others, and interpret their social worlds. Each orientation offers distinct perspectives on autonomy, responsibility, and the role of the individual within a community.Individualistic CulturesIn individualistic cultures like North America and Western Europe, identity is understood as autonomous and...
Uncertainty: Overview
In analytical chemistry, we often perform repetitive measurements to detect and minimize inaccuracies caused by both determinate and indeterminate errors. Despite the cares we take, the presence of random errors means that repeated measurements almost never have exactly the same magnitude. The collective difference between these measurements - observed values - and the estimated or expected value is called uncertainty. Uncertainty is conventionally written after the estimated or expected value.
Schemas
A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
Structuralism
Structuralism, an early psychological theory developed by Wilhelm Wundt and his student Edward Bradford Titchener, sought to dissect the human mind into its most fundamental components. Wundt's groundbreaking work in his laboratory set the stage for Titchener to define structuralism's goal as cataloging the "atoms" of the mind—sensations, images, and feelings—akin to how chemists identify elements of matter.
Titchener's approach to structuralism was unique. He employed introspection, a method...
Titchener's approach to structuralism was unique. He employed introspection, a method...
Models, Theories, and Laws
Scientists frequently use models to help them comprehend a specific collection of phenomena. In physics, a model is a condensed version of a physical system that is too complex to study thoroughly. One such example is the light wave model; unlike water waves, light waves are typically invisible to us. Nonetheless, it is helpful to think of light as being composed of waves, since investigations show that light behaves like water waves. Since it is impossible to visually see what is genuinely...
Humanistic Psychology
Humanistic psychology emerged in the mid-20th century as a response to the deterministic and pessimistic nature of behaviorism and psychoanalysis. While behaviorism focused on observable behaviors influenced by the environment and psychoanalysis delved into unconscious motivations, both theories suggested that human actions lacked free will. In contrast, humanistic psychology offers a perspective that emphasizes the innate potential for goodness and growth within every individual.
This approach...
This approach...

