Recruiting

The MARVIN Chatbots to Provide Information for Different Health Conditions

This research is a continuation of a usability study with the MARVIN chatbot. The investigators aim to adapt the MARVIN chatbot to open it to other health domains (e.g. breast cancer) and populations (e.g. pharmacists). Therefore, this protocol constitutes a master research protocol that will englobe different research projects with individual chatbots. The investigators adopt an adaptive platform trial design, which will allow flexibility in handling multiple interventions adapted to different populations while…

ClinicalTrials.gov IDNCT05789901

PhaseNA

Enrollment400

SponsorMcGill University Health Centre/Research Institute of the McGill University Health Centre

Age14 Years

SexALL

I'm interested View official listing

Conditions studied

HIV Infections, Breast Cancer, Pediatric Emergency Medicine

About this study

Interventions

Other: MARVIN — Chatbot on Meta (Facebook) Messenger for HIV Patients
Other: MARVIN-Pharma — Chatbot on Meta (Facebook) Messenger for community pharmacists
Other: MARVINA — Chatbot on Meta (Facebook) Messenger for breast cancer patients
Other: MARVIN-CHAMP — CHatbot to Assist the Management of Pediatric patients with infectious conditions (CHAMP)

Primary outcomes

Usability Metric for User eXperience (UMUX-Lite) (Immediately, after 1-month of testing - objective 2)
Acceptability E-Scale (AES) (Immediately after 1-month of testing - objective 2)
Change in Acceptability E-Scale (AES) over 12 months (Once every 3 months within 12 months)
Change in Intervention Appropriateness Measure (IAM) over 12 months (Once every 3 months within 12 months)
Change in Compatibility Subscale over 12 months (Once every 3 months within 12 months)

Eligibility information

Inclusion Criteria for all objectives: * being 14 years or older; * being fluent in English and/or French; * being able to understand the requirements of study participation and provide informed consent during the duration of the study; * having access to a smartphone, tablet, or computer at home/at workplace; * having access to an internet connection at home or data plan on their device. Inclusion Criteria Specific to objectives 2 and 3: * accept to use a Facebook Messenger-based Chatbot; * accept to use or create a personal Facebook account; * accept Facebook's privacy and data security policies. Exclusion Criteria: * not meeting the inclusion criteria * any reason, in the opinion of the investigator, which would make the candidate inappropriate for participation in an investigative study involving a chatbot (e.g., cognitive deficit)

Study locations

Centre hospitalier de l'Université de Montréal (CHUM), Montreal, Quebec H2X 3E4 Canada
McGill University Health Centre (MUHC), Montreal, Quebec H4A 3J1 Canada

Before you participate: Varda Clinical is an independent discovery tool, not the study sponsor or a medical provider. Eligibility can only be determined by the official study team. Discuss potential risks and benefits with a qualified healthcare professional.

Source: ClinicalTrials.gov. Record last refreshed by Varda Clinical: 2026-09-27.