Trial · NCT07880158
Sequential Digital Intervention to Increase Influenza Vaccination in Patients With Heart Failure
NCT07880158, Not applicable, Not yet recruiting, Heart Health Research Center
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Sequential Digital Intervention to Increase Influenza Vaccination in Patients With Heart Failure. Trials, record NCT07880158. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07880158
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Sequential Digital Intervention to Increase Influenza Vaccination in Patients With Heart Failure
- NCT number
- NCT07880158
- Status
- Not yet recruiting
- Phases
- Not applicable
- Enrollment
- 588 participants, estimated
- Lead sponsor
- Heart Health Research Center
- Conditions
- Heart Failure, Influenza Vaccination
- Interventions
- Routine Influenza Vaccination Recommendation, Repeated AI-Assisted Telephone Intervention, Gain-Framed SMS Reminder, Loss-Framed SMS Reminder
- First posted
- 2026-10-19
- Last updated
- 2026-10-19
Source ClinicalTrials.gov
Registered outcomes7
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Influenza Vaccination Uptake | From first-stage randomization to 2 months after randomization | The proportion of participants who receive the 2026-2027 seasonal influenza vaccine within two calendar months after first-stage randomization. Vaccination status will be determined primarily using vaccination registry data from the Beijing Center for Disease Prevention and Control. Participants with a qualifying vaccination record within the assessment window will be classified as vaccinated. Participants with adequate registry coverage but no qualifying record will be classified as unvaccinated. Outcomes that cannot be reliably ascertained will be recorded as indeterminate. |
| Secondary | From first-stage randomization to 2 months after randomization | From first-stage randomization to 2 months after randomization | Time in days from first-stage randomization to receipt of the 2026-2027 seasonal influenza vaccine, based on the recorded vaccination date. Participants who do not receive influenza vaccination within the two-month assessment window will be right-censored at the end of their individual assessment window. Time-to-event analyses will be used to compare the first-stage randomized groups. |
| Other | Influenza Vaccination Uptake Following Second-Stage Randomization | From 14 to 28 days after second-stage randomization | The proportion of participants receiving the 2026-2027 seasonal influenza vaccine across the three second-stage randomized groups: no additional SMS, gain-framed SMS, and loss-framed SMS. Comparisons will be exploratory and follow the intention-to-treat principle. |
| Other | From 14 to 28 days after second-stage randomization | During the intervention period, up to 4 weeks after first-stage randomization | The proportion of scheduled AI-assisted telephone calls successfully completed among participants eligible for each call, assessed separately by telephone round. |
| Other | Reasons for Non-Vaccination | At approximately 14 and 28 days after first-stage randomization | The distribution of predefined reasons for not receiving influenza vaccination among unvaccinated participants assessed during the second and third AI-assisted telephone calls. Multiple reasons may be recorded for each participant. |
| Other | All-Cause Mortality | From first-stage randomization to 2 months after randomization | The proportion of participants who die from any cause within two calendar months after first-stage randomization, ascertained using available reliable data sources. |
| Other | Influenza-Related Illness Events | From first-stage randomization to 2 months after randomization | The occurrence of influenza-related illness events during follow-up, assessed using available authorized disease surveillance or registry data. Event definitions will be prespecified based on the available data. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
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 totals0
The totals the trial posted for each group.
None in this release.
Papers3
The papers the trial lists on ClinicalTrials.gov.
Grants0
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.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
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/NCT07880158
GET https://conductscience.org/api/trials/v1/NCT07880158/registered