Health Knowledge, Attitudes, PracticeSNINCT04850287
Improving Health Awareness Using Social Network Interventions
A study testing Digital Sensors for Population Awareness about Health Issues using Social Media in people with Health Knowledge, Attitudes, Practice, run by University of California, Davis at 1 site in United States.
Trial summary
The overarching hypothesis of our study is that social network interventions using artificial intelligence and social media can be used to increase population awareness about health issues. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Health Knowledge, Attitudes, Practice
- What is being tested?
- Digital Sensors for Population Awareness about Health Issues using Social Media
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 2,000,000 participants
- Where
- 1 siteUnited States
- Study dates
- 10 Feb 2021to Jun 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Have a California zip code.
- Be a Facebook user
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
United States1 site
UC Davis Medical Center
Sacramento, California, 95817
About this study
The overarching hypothesis of our study is that social network interventions using artificial intelligence and social media can be used to increase population awareness about health issues. The overarching objective is to improve population awareness on multiple relevant health issues using social network interventions (SNI) and estimate the effect by conducting randomized control trials. Increase population awareness about organ donation in California, especially among minorities
Read the detailed description
The population of California will be stratified into demographic environments which are groups of ZIP Codes of similar cultural, socioeconomic, and ethnic/racial factors. Digital markers of population awareness about organ donation will be estimated from publicly available online conversations of users in social media. A clustered randomized control trial will be conducted and ZIP Codes from each demographic environment will be randomly assigned to control and intervention arms. Digital educational materials about organ donation will be exposed to online users in social media belonging to ZIP Codes assigned to the intervention arm.
- Conditions
- Health Knowledge, Attitudes, Practice
- Being tested
- Digital Sensors for Population Awareness about Health Issues using Social Media
- Medical subject headings
- Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Digital Sensors for Population Awareness about Health Issues using Social MediaBehavioural
A clustered randomized control trial will be conducted and ZIP Codes from each demographic environment will be randomly assigned to control and intervention arms. Digital educational materials about organ donation will be exposed to online users in social media belonging to ZIP Codes assigned to the intervention arm
| Study group | Role | What they receive |
|---|---|---|
| Control | Placebo comparator | Not described Receives: Behavioral: Digital Sensors for Population Awareness about Health Issues using Social Media |
| Intervention | Experimental | Not described Receives: Behavioral: Digital Sensors for Population Awareness about Health Issues using Social Media |
| Optimal | Experimental | Not described Receives: Behavioral: Digital Sensors for Population Awareness about Health Issues using Social Media |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change the number of organ donor registration
Measures: number of registrations at Donate Life web page.
Measured: 3 years
Secondary outcomes (1)
Change population awareness about health issues
Measures: number of clicks and impressions on the ad.
Measured: 3 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Apr 2021
- Study start10 Feb 2021
- Primary completionJun 2027 (estimated)
- Study completionJun 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Health Knowledge, Attitudes, PracticeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 2,000,000 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of California, Davis
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04850287
- Sponsor's protocol ID
- 1596733
- Acronym
- SNI
- Status last verified
- Aug 2026
- First submitted
- 7 Apr 2021
- Last updated
- 18 Aug 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Rocha P, Pinheiro D, de Paula Monteiro R, Tubert E, Romero E, Bastos-Filho C, Nuno M, Cadeiras M. Adaptive Content Tuning of Social Network Digital Health Interventions Using Control Systems Engineering for Precision Public Health: Cluster Randomized Controlled Trial. J Med Internet Res. 2023 May 31;25:e43132. doi: 10.2196/43132.
PubMed 37256680
Study at a glance
From the registry record, last updated by the sponsor on 18 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Improving Health Awareness Using Social Network Interventions
- ClinicalTrials.gov ID
- NCT04850287
- Acronym / sponsor ID
- SNI / 1596733
- Conditions
- Health Knowledge, Attitudes, Practice
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 2,000,000 participants (estimated)
- Lead sponsor
- University of California, DavisUniversity, hospital or other
- Study start
- 10 Feb 2021 (actual)
- Primary completion
- Jun 2027 (estimated)
- Study completion
- Jun 2027 (estimated)
- First posted
- 20 Apr 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The overarching hypothesis of our study is that social network interventions using artificial intelligence and social media can be used to increase population awareness about health issues. The overarching objective is to improve population awareness on multiple relevant health issues using social network interventions (SNI) and estimate the effect by conducting randomized control trials. Increase population awareness about organ donation in California, especially among minorities
Detailed description
The population of California will be stratified into demographic environments which are groups of ZIP Codes of similar cultural, socioeconomic, and ethnic/racial factors. Digital markers of population awareness about organ donation will be estimated from publicly available online conversations of users in social media. A clustered randomized control trial will be conducted and ZIP Codes from each demographic environment will be randomly assigned to control and intervention arms. Digital educational materials about organ donation will be exposed to online users in social media belonging to ZIP Codes assigned to the intervention arm.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Control | Placebo comparator | Behavioral: Digital Sensors for Population Awareness about Health Issues using Social Media |
| Intervention | Experimental | Behavioral: Digital Sensors for Population Awareness about Health Issues using Social Media |
| Optimal | Experimental | Behavioral: Digital Sensors for Population Awareness about Health Issues using Social Media |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (2 listed)
- Have a California zip code.
- Be a Facebook user
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Digital Sensors for Population Awareness about Health Issues using Social MediaA clustered randomized control trial will be conducted and ZIP Codes from each demographic environment will be randomly assigned to control and intervention arms. Digital educational materials about organ donation will be exposed to online users in social media belonging to ZIP Codes assigned to the intervention arm | Behavioural | Control, Intervention, Optimal |
Primary outcome
Change the number of organ donor registration
Time frame: 3 years
Measures: number of registrations at Donate Life web page.
1 secondary outcome
Change population awareness about health issues
Time frame: 3 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Aug 2026.
- Derived from this study: PubMed 37256680Rocha P, Pinheiro D, de Paula Monteiro R, Tubert E, Romero E, Bastos-Filho C, Nuno M, Cadeiras M. Adaptive Content Tuning of Social Network Digital Health Interventions Using Control Systems Engineering for Precision Public Health: Cluster Randomized Controlled Trial. J Med Internet Res. 2023 May 31;25:e43132. doi: 10.2196/43132.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Digital Sensors for Population Awareness about Health Issues using Social Media in people with Health Knowledge, Attitudes, Practice, run by University of California, Davis at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 18 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change the number of organ donor registration (time frame: 3 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04850287, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Aug 2026.