AzTrials
AzTrials

HPV VaccineNCT06405048

Impact of a Mock-up Fact-checking Extension on HPV Vaccine Misinformation: A Survey Experiment

A study testing Mobile Weibo post screenshot with mock-up Chinese fact-checking extension in people with HPV Vaccine, run by Fudan University at 2 sites in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

The primary objective of this survey experiment study is to measure the impact of a mock-up Chinese fact-checking extension on the ability to dispel HPV and HPV vaccine-related misinformation among parents of middle school girls in China. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
HPV Vaccine
What is being tested?
Mobile Weibo post screenshot with mock-up Chinese fact-checking extension
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,200 participants
Where
2 sitesChina
Study dates
28 Apr 2024to 30 Jun 2024
Phase
Interventional
Are there results?
None posted in the registry

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 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Participants must be parents or legal guardians of female students currently enrolled in participating middle school.
  • The parent's or guardian's female middle school student must not have received the HPV vaccine, must not have an HPV vaccination appointment scheduled, and must not have any contraindications to receiving the HPV vaccine.
  • Participants must be free of mental health disorders or visual/reading disabilities that could prevent their full participation in and completion of the intervention activities.
  • Participants must have provided informed consent and expressed a willingness to actively participate throughout the study.
  • Exclusion criteria are defined as individuals not meeting the aforementioned inclusion criteria.

Who cannot join

None listed.

Trial locations and contacts

2 sites in 1 country.

Zhiyuan Hou, PhD contact

86+21 33563935

zyhou@fudan.edu.cn

Leesa Lin, PhD contact

+852 39103770

leesalin@hku.hk

China2 sites
  • Chizhou Health Center for Disease Control and Prevention

    Chizhou, Anhui, 247100

    Liubing Gong, MS, chzcpdcxf@126.com

  • Jiading District Center for Disease Control and Prevention

    Shanghai, Shanghai Municipality, 201800

    Hui Peng, MS, penny200210108@sina.com

Other trials in China

About this study

Official title: Evaluating the Feasibility and Effectiveness of a Mock-up Fact-checking Extension to Improve Ability to Debunk HPV Vaccine Misinformation Among Parents of Middle School Girls: A Survey Experiment

The primary objective of this survey experiment study is to measure the impact of a mock-up Chinese fact-checking extension on the ability to dispel HPV and HPV vaccine-related misinformation among parents of middle school girls in China.

Read the detailed description

This survey experiment study aims to assess the feasibility and effectiveness of a mock-up Chinese fact-checking extension on improving the ability to identify HPV and HPV vaccine-related misinformation among parents of middle school girls in three economically diverse regions of China. This includes Shanghai megacity, an urban city in Anhui Province, and rural counties in Anhui Province. The participants will be parents of middle school girls who have not yet received the HPV vaccine. This experiment will randomly assign the participants into intervention or control group. Participants in the intervention group will use a mock-up Chinese fact-checking extension whereas those in control group will not.

The sample size for this study was determined based on the two primary outcomes: knowledge of the HPV vaccine and the ability to dispel misinformation. A review of the existing literature suggests that the intention or confidence among Chinese parents to vaccinate their children with the HPV vaccine, as well as their knowledge about the vaccine and capability to counteract misinformation, typically ranges from 50% to 70%. We assumed a baseline rate of 60% for both vaccine knowledge and misinformation discernment. It is anticipated that exposure to educational interventions will increase these rates by 10%, elevating them to 70%. Using a significance level of 0.05 and a statistical power of 90%, the required sample size was calculated to be a minimum of 473 participants per group. To accommodate potential variability and to strengthen the robustness of the study, 500 participants will be recruited for each group, maintaining a 1:1 ratio. This approach results in a total sample size of 1,000 participants. Such a sample size ensures that the study is sufficiently powered to detect a significant change in the outcomes of interest.

In this study, 11 mobile Weibo post screenshots were created, covering a range of topics including infertility, safety, vaccine ingredients, high-risk cervical cancer types, regular check-ups, transmission routes, and others.

The participants in both groups will complete a questionnaire consisting of six phases:

  1. Phase 1 (Baseline Assessment): Participants in both the intervention and control groups will complete a questionnaire covering (a) basic demographic information, (b) HPV vaccine knowledge, (c) HPV vaccine awareness and confidence, and (d) vaccination intentions.
  2. Phase 2 (Intervention Module 1): Participants in the intervention group will review six Weibo post screenshots, each featuring a mock-up Chinese fact-checking extension. The control group will view identical screenshots, but without the fact-checking extension. Half of these posts will include false information. After viewing each post, those in the intervention group will evaluate a statement related to the Weibo content and corresponding to one of the predefined (b) HPV vaccine knowledge. Their responses will be: 1) Correct, 2) Incorrect, or 3) I don't know, considering both the post content and the fact-checking extension's findings. Participants in the control group will assess the same statement based only on the post content, with the same response options.
  3. Phase 3 (Intervention Module 2): All participants will review four additional Weibo post screenshots, including two containing false information, to evaluate whether exposure to the mock-up fact-checking extension has improved the intervention group's ability to identify false information. The same question format from Intervention Module 1 will be used for responses.
  4. Phase 4 (Post-intervention Assessment): All participants are required to fill out sections on (c) HPV vaccine awareness and confidence, and (d) vaccine intentions.
  5. Phase 5 (Intervention Module 3): All participants in both groups will be asked whether they use a mock-up fact-checking extension when viewing Weibo post screenshots. If participants choose 'Yes', they will view a Weibo post screenshot with the extension displayed; if they choose 'No', the extension will not be displayed. The same question format from Intervention Module 1 will be used for responses. This phase aims to assess participants' behaviour regarding the use of the extension.
  6. Phase 6 (User Experience Assessment): All participants will complete the section (e) the user experience with a mock-up fact-checking extension.

Following the completion of the experiment, a debunking procedure will be conducted for participants in both the intervention and control groups. This is to avoid any potential risks associated with the spread of misinformation on Weibo.

Data analysis will employ Difference-in-Differences (DID) analysis, multiple logistic regression, and other suitable statistical methods to evaluate the effectiveness of the mock-up Chinese fact-checking extension.

Conditions
HPV Vaccine
Being tested
Mobile Weibo post screenshot with mock-up Chinese fact-checking extension
Keywords
HPV vaccine, knowledge, misinformation, vaccine confidence, fact-checking extension
Medical subject headings
Communication

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Mobile Weibo post screenshot with mock-up Chinese fact-checking extensionOther

    The intervention in this survey experiment involves mobile Weibo post screenshots equipped with a mock-up Chinese fact-checking browser extension. All screenshots are based on actual Weibo posts. The fact-checking content is generated by a Large Language Model (LLM), tailored to relevant knowledge and prompts, and subsequently validated by experts. The Weibo posts cover a range of popular topics known to contain misinformation, including infertility, safety, vaccine ingredients, high-risk cervical cancer types, regular check-ups, transmission routes, and others.

Study groups in NCT06405048
Study groupRoleWhat they receive
Mock-up fact-checking extension intervention groupExperimentalIntervention group participants will engage with three modules: In Module 1, participants will examine six Weibo post screenshots, each featuring a mock-up of a Chinese fact-checking extension. Participants in the intervention group will assess a statement linked to the content of each post, which aligns with predefined HPV vaccine knowledge from section (b). Their response options will be: 1) Correct, 2) Incorrect, or 3) I don't know, taking into account both the post and the extension's feedback. In the module 2, participants will review four additional Weibo post screenshots, two of which include false information. Responses will follow the same format used in Module 1. In Module 3, participants will choose whether to view Weibo post screenshots with the fact-checking extension enabled or disabled. If they choose "Yes", the screenshot will be displayed with the extension; if "No", it will be shown without the extension.
Receives: Other: Mobile Weibo post screenshot with mock-up Chinese fact-checking extension
Control groupNo interventionControl group participants will participate in three modules: In Modules 1 and 2, they will review six and four Weibo post screenshots, respectively, without the mock-up Chinese fact-checking extension. Participants will evaluate statements linked to the content of each post, aligning with predefined HPV vaccine knowledge from section (b). Their response options will be: 1) Correct, 2) Incorrect, or 3) I don't know, based solely on the content of the posts. In Module 3, participants will choose whether to view Weibo post screenshots with the fact-checking extension enabled or disabled. If they choose "Yes", the screenshot will be displayed with the extension; if "No", it will be shown without the extension.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Ability to debunk misinformation

    This outcome measures participants' ability to debunk misinformation about the HPV or HPV vaccine. Total debunking scores range from 0 to 10, with higher scores reflecting better debunking skills.

    Measured: Day 1, in a single survey

Secondary outcomes (4)
  1. HPV vaccination intention

    Intention to vaccinate daughters against HPV, measured on a five-point Likert scale from 0 ("very unwilling") to 5 ("very willing").

    Measured: Day 1, in a single survey

  2. HPV vaccine confidence

    Vaccine Confidence Index (VCI), including confidence on vaccine effectiveness and safety, measured on a five-point Likert scale from 0 ("strongly disagree") to 5 ("strongly agree").

    Measured: Day 1, in a single survey

  3. Tool acceptance

    Determines whether participants would like to use a mock-up fact-checking extension when viewing screenshots of Weibo posts. Responses are either Yes (1) or No (0).

    Measured: Day 1, in a single survey

  4. User experience of mock-up fact-checking extension

    4 questions about the user experience of a mock-up fact-checking browser extension, measured using a five-point Likert scale from "strongly disagree" to "strongly agree"

    Measured: Day 1, in a single survey

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 May 2024
  2. Study start28 Apr 2024 (estimated)
  3. Primary completion31 May 2024 (estimated)
  4. Study completion30 Jun 2024 (estimated)

Resources

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
Health services research
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
1,200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06405048
Sponsor's protocol ID
Fact-checking Extension
Status last verified
May 2024
First submitted
26 Apr 2024
Last updated
8 May 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Individual participant data that underlie the results reported in the article, after de-identification (text, tables, figures, and appendices), will be shared upon reasonable requests. A written data-sharing request for meta-analysis should be submitted by email with a methodologically sound proposal. Proposals should be directed to zyhou@fudan.edu.cn; to gain access, data requestors will need to sign a data access agreement.

Publications

  • Lee KY, Dabak SV, Kong VH, Park M, Kwok SLL, Silzle M, Rachatan C, Cook A, Passanante A, Pertwee E, Wu Z, Elkin JA, Larson HJ, Lau EHY, Leung K, Wu JT, Lin L. Effectiveness of chatbots on COVID vaccine confidence and acceptance in Thailand, Hong Kong, and Singapore. NPJ Digit Med. 2023 May 25;6(1):96. doi: 10.1038/s41746-023-00843-6.

    PubMed 37231110
  • Huang S, Yang J, Fong S, Zhao Q. Artificial intelligence in the diagnosis of COVID-19: challenges and perspectives. Int J Biol Sci. 2021 Apr 10;17(6):1581-1587. doi: 10.7150/ijbs.58855. eCollection 2021.

    PubMed 33907522
  • Scherer LD, McPhetres J, Pennycook G, Kempe A, Allen LA, Knoepke CE, Tate CE, Matlock DD. Who is susceptible to online health misinformation? A test of four psychosocial hypotheses. Health Psychol. 2021 Apr;40(4):274-284. doi: 10.1037/hea0000978. Epub 2021 Mar 1.

    PubMed 33646806
  • Bin Naeem S, Kamel Boulos MN. COVID-19 Misinformation Online and Health Literacy: A Brief Overview. Int J Environ Res Public Health. 2021 Jul 30;18(15):8091. doi: 10.3390/ijerph18158091.

    PubMed 34360384
  • Southwick L, Guntuku SC, Klinger EV, Seltzer E, McCalpin HJ, Merchant RM. Characterizing COVID-19 Content Posted to TikTok: Public Sentiment and Response During the First Phase of the COVID-19 Pandemic. J Adolesc Health. 2021 Aug;69(2):234-241. doi: 10.1016/j.jadohealth.2021.05.010. Epub 2021 Jun 22.

    PubMed 34167883
  • Tangcharoensathien V, Calleja N, Nguyen T, Purnat T, D'Agostino M, Garcia-Saiso S, Landry M, Rashidian A, Hamilton C, AbdAllah A, Ghiga I, Hill A, Hougendobler D, van Andel J, Nunn M, Brooks I, Sacco PL, De Domenico M, Mai P, Gruzd A, Alaphilippe A, Briand S. Framework for Managing the COVID-19 Infodemic: Methods and Results of an Online, Crowdsourced WHO Technical Consultation. J Med Internet Res. 2020 Jun 26;22(6):e19659. doi: 10.2196/19659.

    PubMed 32558655
  • Norman CD, Skinner HA. eHealth Literacy: Essential Skills for Consumer Health in a Networked World. J Med Internet Res. 2006 Jun 16;8(2):e9. doi: 10.2196/jmir.8.2.e9.

    PubMed 16867972
  • Hu D, Martin C, Dredze M, Broniatowski DA. Chinese social media suggest decreased vaccine acceptance in China: An observational study on Weibo following the 2018 Changchun Changsheng vaccine incident. Vaccine. 2020 Mar 17;38(13):2764-2770. doi: 10.1016/j.vaccine.2020.02.027. Epub 2020 Feb 22.

    PubMed 32093982
  • Chen L, Wang X, Peng TQ. Nature and Diffusion of Gynecologic Cancer-Related Misinformation on Social Media: Analysis of Tweets. J Med Internet Res. 2018 Oct 16;20(10):e11515. doi: 10.2196/11515.

    PubMed 30327289
  • Keelan J, Pavri V, Balakrishnan R, Wilson K. An analysis of the Human Papilloma Virus vaccine debate on MySpace blogs. Vaccine. 2010 Feb 10;28(6):1535-40. doi: 10.1016/j.vaccine.2009.11.060. Epub 2009 Dec 8.

    PubMed 20003922
  • Zimet GD, Rosberger Z, Fisher WA, Perez S, Stupiansky NW. Beliefs, behaviors and HPV vaccine: correcting the myths and the misinformation. Prev Med. 2013 Nov;57(5):414-8. doi: 10.1016/j.ypmed.2013.05.013. Epub 2013 May 31.

    PubMed 23732252
  • Huang Y, Xu S, Xu Y, Yao D, Wang L, Zhao Y, Wu Q. A New Strategy for Cervical Cancer Prevention Among Chinese Women: How Much Do They Know and How Do They React Toward the HPV Immunization? J Cancer Educ. 2021 Apr;36(2):386-394. doi: 10.1007/s13187-019-01642-y.

    PubMed 31902089
  • Zhang Y, Wang Y, Liu L, Fan Y, Liu Z, Wang Y, Nie S. Awareness and knowledge about human papillomavirus vaccination and its acceptance in China: a meta-analysis of 58 observational studies. BMC Public Health. 2016 Mar 3;16:216. doi: 10.1186/s12889-016-2873-8.

    PubMed 26936076
  • Li K, Li Q, Song L, Wang D, Yin R. The distribution and prevalence of human papillomavirus in women in mainland China. Cancer. 2019 Apr 1;125(7):1030-1037. doi: 10.1002/cncr.32003. Epub 2019 Feb 12.

    PubMed 30748006
  • Li C, Wu M, Wang J, Zhang S, Zhu L, Pan J, Zhang W. A population-based study on the risks of cervical lesion and human papillomavirus infection among women in Beijing, People's Republic of China. Cancer Epidemiol Biomarkers Prev. 2010 Oct;19(10):2655-64. doi: 10.1158/1055-9965.EPI-10-0212. Epub 2010 Aug 18.

    PubMed 20719907

Questions about this trial

What is this clinical trial studying?

A study testing Mobile Weibo post screenshot with mock-up Chinese fact-checking extension in people with HPV Vaccine, run by Fudan University at 2 sites in China.

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 5 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: status not confirmed, as of the sponsor's last update on 8 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in China. 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. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Zhiyuan Hou, PhD (86+21 33563935, zyhou@fudan.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Ability to debunk misinformation (time frame: Day 1, in a single survey). 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 NCT06405048, which also lists 17 linked publications.

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 8 May 2024.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in