Trial · NCT00539539
Automated Real-time Feedback on CPR Study
NCT00539539, Phase 2, Completed, University of Washington; results first posted 2012-06-25
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Automated Real-time Feedback on CPR Study. Trials, record NCT00539539. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00539539
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Automated Real-time Feedback on CPR Study
- NCT number
- NCT00539539
- Status
- Completed
- Phases
- Phase 2
- Enrollment
- 1,586 participants, actual
- Lead sponsor
- University of Washington
- Conditions
- Heart Arrest
- Interventions
- Laerdal Q-CPR /technology
- First posted
- 2007-10-04
- Last updated
- 2012-06-25
- Results first posted
- 2012-06-25
- Limitations and caveats
- Open label study - providers not blinded to intervention. High rates of missing CPR process measures.
Source ClinicalTrials.gov
Registered outcomes8
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Rate of ROSC During the Prehospital Resuscitation | Prehospital resuscitation | Return of spontaneous circulation (ROSC) |
| Secondary | Pulses Present at ED Arrival. | Resuscitation | |
| Secondary | Survival to Hospital Discharge | Length of Hospitalization | Survival to hospital discharge |
| Secondary | CPR Fraction | Up to 10 minutes of CPR | Percentage of time during CPR spend doing compressions. |
| Secondary | Compression Depth | Up to 10 minutes of CPR | Average compression depth (mm) during the first 10 minutes of CPR. |
| Secondary | Compression Rate | Up to 10 minutes of CPR | Average compression rate during the first 10 minutes of CPR. |
| Secondary | Percentage of Compressions With an Incomplete Release | Up to 10 minutes of CPR | Percentage of compressions with incomplete release during the first ten minutes of CPR. |
| Secondary | Ventilation Rate | Up to 10 minutes of CPR | Average ventilation rate (breaths/minute) during the first ten minutes of CPR. |
Source ClinicalTrials.gov
Outcomes8
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
| Type | Outcome | Time frame | Population | Units | Measured as |
|---|---|---|---|---|---|
| PRIMARY | Rate of ROSC During the Prehospital Resuscitation | Prehospital resuscitation | Intent to treat | Participants | NUMBER |
| SECONDARY | Pulses Present at ED Arrival. | Resuscitation | Intention to treat. Presence of pulses not known for one participant on the feedback off arm. Analysis includes 815 participants on the feedback on arm and 770 on the feedback off arm. | Participants | NUMBER |
| SECONDARY | Survival to Hospital Discharge | Length of Hospitalization | Intention to treat, with survival to hospital discharge missing for one participant on the feedback off arm. Analysis included 815 participants on the feedback on arm, and 770 on the feedback off arm. | Participants | NUMBER |
| SECONDARY | CPR Fraction | Up to 10 minutes of CPR | Intention to treat, with CPR fraction available for 604 participants on the feedback on arm, and 570 on the feedback off arm. | Percentage | MEAN |
| SECONDARY | Compression Depth | Up to 10 minutes of CPR | Intention to treat. Compression depth available for 529 participants on the feedback on arm and 467 on the feedback off arm. | mm | MEAN |
| SECONDARY | Compression Rate | Up to 10 minutes of CPR | Intention to treat. Average compression rate available for 604 participants on the feedback on arm and 570 on the feedback off arm. | Compressions per minute | MEAN |
| SECONDARY | Percentage of Compressions With an Incomplete Release | Up to 10 minutes of CPR | Intention to treat. Incomplete release available for 529 participants on the feedback on arm and 467 on the feedback off arm. | % of compressions w/ incomplete release | MEAN |
| SECONDARY | Ventilation Rate | Up to 10 minutes of CPR | Intention to treat. Ventilation rate available in 347 participants on the feedback on arm and 346 on the feedback off arm. | breaths per minute | MEAN |
Source ClinicalTrials.gov
Results by group16
Each measurement the trial posted, group by group, in the words and numbers it posted.
| Outcome | Group | Category | Value | Spread | Units |
|---|---|---|---|---|---|
| Rate of ROSC During the Prehospital Resuscitation | Feedback On | 361 | Participants | ||
| Rate of ROSC During the Prehospital Resuscitation | Feedback Off | 345 | Participants | ||
| Pulses Present at ED Arrival. | Feedback On | 260 | Participants | ||
| Pulses Present at ED Arrival. | Feedback Off | 243 | Participants | ||
| Survival to Hospital Discharge | Feedback On | 92 | Participants | ||
| Survival to Hospital Discharge | Feedback Off | 96 | Participants | ||
| CPR Fraction | Feedback On | 66 | Standard Error 1 | Percentage | |
| CPR Fraction | Feedback Off | 64 | Standard Error 1 | Percentage | |
| Compression Depth | Feedback On | 39.6 | Standard Error 0.4 | mm | |
| Compression Depth | Feedback Off | 37.8 | Standard Error 0.4 | mm |
1 to 10 of 16Source ClinicalTrials.gov
See all 16 results by groupParticipant flow6
How many started, completed or left each group, period by period.
| Period | Milestone | Group | Participants | Units counted |
|---|---|---|---|---|
| Overall Study | STARTED | Feedback On | 815 | |
| Overall Study | STARTED | Feedback Off | 771 | |
| Overall Study | COMPLETED | Feedback On | 815 | |
| Overall Study | COMPLETED | Feedback Off | 771 | |
| Overall Study | NOT COMPLETED | Feedback On | 0 | |
| Overall Study | NOT COMPLETED | Feedback Off | 0 |
Source ClinicalTrials.gov
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals6
The totals the trial posted for each group.
| Total | Group | Affected | At risk |
|---|---|---|---|
| Total, all-cause mortality | Feedback On | ||
| Total, all-cause mortality | Feedback Off | ||
| Total, other adverse events | Feedback On | 0 | 815 |
| Total, other adverse events | Feedback Off | 0 | 771 |
| Total, serious adverse events | Feedback On | 0 | 815 |
| Total, serious adverse events | Feedback Off | 0 | 771 |
Source ClinicalTrials.gov
Papers1
The papers the trial lists on ClinicalTrials.gov.
| PMID | Listed as |
|---|---|
| 21296838 | DERIVED |
Source PubMed
Grants1
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
| Project | Title | Principal investigators | Organization | Funder | Fiscal years |
|---|---|---|---|---|---|
| U01HL077863 | Resuscitation Outcomes Consortium (ROC) Data Coordinating Center | MAY, SUSANNE | UNIVERSITY OF WASHINGTON | NATIONAL HEART, LUNG, AND BLOOD INSTITUTE | 2004 to 2015 |
Source NIH RePORTER
Trial comparisons4
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
| Comparison | Source |
|---|---|
| Feedback On vs Feedback Off: Survival to Hospital Discharge | Trial comparisons |
| Feedback On vs Feedback Off: Rate of ROSC During the Prehospital Resuscitation | Trial comparisons |
| Feedback On vs Feedback Off: Pulses Present at ED Arrival. | Trial comparisons |
| Feedback On vs Feedback Off: serious adverse events | Trial comparisons |
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT00539539
GET https://conductscience.org/api/trials/v1/NCT00539539/registered