NCT04881227

Brief Summary

Vaccine hesitancy also concerns healthcare workers (HCWs). However, HCWs are at the frontline of the COVID-19 pandemic and identified as a priority target group for COVID-19 vaccines. Thus, the identification of interventions likely to improve COVID-19 vaccine attitudes and intentions among HCWs is of interests to increase the vaccine coverage among HCWs. The study hypothesis is that the use of the same chatbot as the one tested in the general population in France could also improve the COVID-19 vaccine intentions and perceptions in HCWs.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
200

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started May 2021

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 10, 2021

Completed
1 day until next milestone

First Posted

Study publicly available on registry

May 11, 2021

Completed
14 days until next milestone

Study Start

First participant enrolled

May 25, 2021

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 23, 2021

Completed
22 days until next milestone

Study Completion

Last participant's last visit for all outcomes

October 15, 2021

Completed
Last Updated

June 21, 2022

Status Verified

June 1, 2022

Enrollment Period

4 months

First QC Date

May 10, 2021

Last Update Submit

June 17, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • The change in the COVID-19 vaccine perceptions (5 questions) using a seven-point Likert scale, immediately after the access to the intervention

    1. "I think vaccines against COVID-19 are safe" 2. "I think vaccines against COVID-19 are effective" 3. "I think we know enough about the COVID-19 vaccines" 4. "I think we can trust the people who produce the COVID-19 vaccines" 5. "I think it is important to get vaccinated against COVID-19". The COVID-19 vaccine perceptions variable is the mean of the response to these five questions, each answered on a 7-point likert scale.

    Change from baseline to immediately after intervention (experimental or control arm)

Secondary Outcomes (5)

  • The change in the COVID-19 vaccine perceptions (5 questions) using a seven-point Likert scale, 15-days after the access to the intervention

    From baseline to day 15

  • The change in the COVID-19 vaccine intention, immediately after the access to the intervention with the following question: "Do you personally intent to be vaccinated against COVID-19?"

    From baseline to immediately after the intervention (experimental or control arm)

  • The change in the COVID-19 vaccine intention, 15 days after the access to the intervention with the following question: "Do you personally intent to be vaccinated against COVID-19?" (yes, as soon as possible / yes but I prefer to wait / no)

    From baseline to day 15 after the intervention (experimental or control arm)

  • Changes into the attitudes and intention towards the COVID-19 vaccines according to the vaccine immediately and 15-days after the access to the interventions

    Up to 15 days

  • Participants in the Chatbot intervention will be ask, after the access to the intervention, to answer to a satisfaction questionnaire

    End of baseline questionnaire

Study Arms (2)

Chatbot condition

EXPERIMENTAL

Participants randomly assigned to this arm will access to a Chatbot condition, in which they had the opportunity to interact with the chatbot on COVID-19 vaccine hesitancy.

Device: Chatbot on COVID-19 vaccine hesitancy

Control condition

ACTIVE COMPARATOR

Participants randomly assigned to this arm will access to a brief text describing the way vaccines work.

Other: Control intervention

Interventions

This intervention will provide to participants information on COVID-19 vaccine hesitancy consisting of the possibility of accessing a long series of questions and answers online about this vaccination.

Chatbot condition

This control intervention will provide to participants a brief text decribing the way vaccines works.

Control condition

Eligibility Criteria

Age18 Years - 99 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Legal age
  • Healthcare workers defined as individuals who currently work in a setting where individuals receive healthcare (i.e. individuals do not have to work directly with patients, but may have any role within a setting where individuals receive healthcare, such as administrative office, housekeeping, food service, etc.)
  • Included in ESPERES cohort and with the initial questionnaire completed
  • Agreeing to participate (digital consent)

You may not qualify if:

  • No internet access
  • Vaccinated against COVID-19 (at least one dose)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pitié-Salpêtrière - Charles Foix, AP-HP

Paris, Île-de-France Region, 75013, France

Location

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Florence Tubach, MD, PhD

    Assistance Publique - Hôpitaux de Paris

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 10, 2021

First Posted

May 11, 2021

Study Start

May 25, 2021

Primary Completion

September 23, 2021

Study Completion

October 15, 2021

Last Updated

June 21, 2022

Record last verified: 2022-06

Locations