Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Placebo Effect01:54

The Placebo Effect

6.2K
The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.
6.2K
Regression Toward the Mean01:52

Regression Toward the Mean

6.3K
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
6.3K
Blinding01:11

Blinding

2.4K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
2.4K
Blind Procedures02:07

Blind Procedures

10.6K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
10.6K
Time Course of Drug Effect01:14

Time Course of Drug Effect

2.0K
The progression of a drug's impact can be analyzed by examining both the concentration-time course and the effect-time course. The concentration-time course is determined by the drug's half-life and is influenced by factors such as its pharmacokinetics, including absorption, distribution, metabolism, and elimination. The effect of the drug is often related to its concentration in the plasma and is calculated using the maximum drug effect and the plasma concentration that generates 50...
2.0K
Factors Affecting Drug Biotransformation: Biological01:19

Factors Affecting Drug Biotransformation: Biological

149
Biological factors significantly impact drug metabolism, influencing drug clearance, efficacy, and potential toxicity.
Species differences: Variations in enzyme systems across species can cause disparities in drug metabolism. For instance, humans may metabolize certain drugs faster than rodents, altering therapeutic effects.
Strain differences: Genetic variations within a species can result in differing enzyme activity, impacting drug response and toxicity. For example, some mouse strains may...
149

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Household mobility responses to weather extremes in Kyrgyzstan.

Nature communications·2026
Same author

Design and Development of Firearm Information and Responsible Storage Techniques for U.S. Veterans (Veterans FIRST).

Military medicine·2026
Same author

Robust Wada boundaries and entropy scaling in pp-wave spacetimes.

Chaos (Woodbury, N.Y.)·2026
Same author

Implications of year 1 Trump Administration policies for Americans' lung health.

American journal of respiratory and critical care medicine·2026
Same author

How Platform Trials Work.

NEJM evidence·2026
Same author

Spatial Learning in Naturalistic Search With Simulated Vision Loss.

Translational vision science & technology·2026
Same journal

Public Health Response to Clade Ib Mpox with Multiple Exposures in Congregate Living Settings - New Hampshire, February 2025.

NEJM evidence·2026
Same journal

Berberine-Ursodeoxycholate - Bringing Traditional Chinese Medicine to Our World.

NEJM evidence·2026
Same journal

Outbreak of Legionnaires' Disease Associated with Cooling Tower Systems in Central Harlem.

NEJM evidence·2026
Same journal

Immunotherapy for Fertility in Autoimmune Premature Ovarian Insufficiency.

NEJM evidence·2026
Same journal

A Randomized Trial of Interval Likelihood Ratios for Clinical Decision-Making.

NEJM evidence·2026
Same journal

Evidence for Evidence-Based Medicine - A Call for Some Theory and a New Problem.

NEJM evidence·2026
See all related articles

Related Experiment Video

Updated: Jul 2, 2025

Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment
08:36

Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment

Published on: April 19, 2024

512

How Treatment Effect Heterogeneity Works.

C Corey Hardin1, Michael Fralick2, Daniel Muller

  • 1Massachusetts General Hospital, Boston, Massachusetts.

NEJM Evidence
|February 27, 2024
PubMed
Summary
This summary is machine-generated.

Treatment effect heterogeneity means treatments work differently for each person. Understanding these differences is key to applying clinical trial results effectively in real-world patient care.

More Related Videos

Strategies for Assessing Autistic-Like Behaviors in Mice
07:38

Strategies for Assessing Autistic-Like Behaviors in Mice

Published on: September 20, 2024

973
Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
06:27

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Published on: January 10, 2025

733

Related Experiment Videos

Last Updated: Jul 2, 2025

Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment
08:36

Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment

Published on: April 19, 2024

512
Strategies for Assessing Autistic-Like Behaviors in Mice
07:38

Strategies for Assessing Autistic-Like Behaviors in Mice

Published on: September 20, 2024

973
Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
06:27

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies

Published on: January 10, 2025

733

Area of Science:

  • Biostatistics
  • Clinical Trial Methodology
  • Translational Medicine

Background:

  • Clinical trials aim to evaluate treatment efficacy.
  • Individual patient responses to treatments can vary significantly.
  • Treatment effect heterogeneity addresses these variations.

Discussion:

  • Understanding heterogeneity is crucial for personalized medicine.
  • It impacts the generalizability of clinical trial findings.
  • Statistical methods are employed to identify and quantify heterogeneity.

Key Insights:

  • Treatment effectiveness is not uniform across all participants.
  • Recognizing subgroup effects improves treatment application.
  • Heterogeneity analysis enhances the interpretation of trial outcomes.

Outlook:

  • Future research should focus on predictive modeling for treatment response.
  • Integrating heterogeneity into clinical guidelines will optimize patient care.
  • Advancements in data analysis will further elucidate treatment variations.