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NCT04133831 · ClinicalTrials.gov registry record · NA
Don't Throw Your Heart Away: Layperson Study 1
A NA study, sponsored by Carnegie Mellon University.
- Completed
- Registry status
- NA
- Development phase
- 1,019
- Enrollment target
NCT04133831: Completed NA study, sponsored by Carnegie Mellon University.
NCT04133831 is a NA study that has completed, run by Carnegie Mellon University. The registered enrollment target is 1,019 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (27% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04133831, a NA study, has completed, sponsored by Carnegie Mellon University.
- COMPLETED
- Registry status
- NA
- Development phase
- 1,019 participants
- Enrollment target
Study Summary
Publicly available outcome assessments for transplant programs do not make salient that some programs tend to reject many of the hearts they are offered, whereas other programs accept a broader range of donor offers. The investigators use empirical studies to test whether transplant center performance data (i.e. transplant and waitlist outcome statistics) that reflect center donor acceptance rates influence laypersons to evaluate centers with high organ decline rates less favorably than centers with low organ decline rates. 1000 lay participants will be recruited from Amazon Mechanical Turk and randomized to one of five different information presentation conditions. Participants will be given an introduction to the donor organ match process, then asked to view the table of transplant outcomes corresponding to the condition they were randomized to. Each participant is asked to choose between two hospitals: one hospital with an non-selective, "accepting" strategy (takes all donor heart offers), and one hospital with a more selective, "cherrypicking" strategy (tends to reject donor offers that are less than "excellent" quality).
Primary Outcome
The outcome variable will be a measure of binary choice between two hospitals: one with a selective donor-heart acceptance strategy and one with a non-selective donor heart acceptance strategy. Participants will respond to the question "Which Hospital is a better choice for patients? Please click on one of the two tables below to indicate which hospital is the better choice." Participants will choose been two outcome tables featuring the selective and non-selective hospital (counterbalanced, su
Interventions
- OTHER Total Survival
- OTHER Stratified Transplant Survival
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 1,019 participants |
| Start Date | 2019-11-15 |
| Est. Completion | 2020-04-30 |
| Phase | NA |
What the finished NCT04133831 record still lists
NCT04133831 is an interventional study that assigns participants to a tested intervention. Its 1,019 participants enrollment target places it among the larger protocols in the corpus, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (27% lower).
The record links to 0 conditions, and to 2 interventions - of which Total Survival is the first listed.
NCT04133831 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04133831 about?
NCT04133831 is a clinical study titled "Don't Throw Your Heart Away: Layperson Study 1". Publicly available outcome assessments for transplant programs do not make salient that some programs tend to reject many of the hearts they are offered, whereas other programs accept a broader range of donor offers. The investigators use empirical studies to test whether transplant center performan...
What is the current status of trial NCT04133831?
This trial is currently completed. It is a NA study. The enrollment target is 1,019 participants. The study started on 2019-11-15. Estimated completion is 2020-04-30.
What interventions are being tested in trial NCT04133831?
The interventions under investigation include: Total Survival (OTHER), Stratified Transplant Survival (OTHER).
Who is sponsoring clinical trial NCT04133831?
This trial is sponsored by Carnegie Mellon University, which has 37 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04133831's enrollment target sits among peer trials
1,019 106th of 2000 higher than 1,895 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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