MOTIVAC-MATER-Confiance

  • STATUS
    Recruiting
  • End date
    Nov 21, 2022
  • participants needed
    1100
  • sponsor
    Observatoire Regional de la Sante Provence-Alpes-Côte d'Azur
Updated on 21 April 2022
Accepts healthy volunteers

Summary

CONTEXT Vaccination has reduced mortality and morbidity by controlling many vaccine-preventable diseases. To prevent recurrence of these diseases, high vaccine coverages (VCs) (≥ 95%) are needed. But VCs for infants remain suboptimal, and four out of 10 parents doubt the safety and efficacy of vaccines in France. The Ministry of Health therefore decided in July 2017 to expand vaccination requirements to 11 valences now required to enter in young children collective structures. This measure, which went into effect in January 2018, has produced significant effects on VCs, but despite this, vaccine hesitancy (VH) persists in the general population at a prevalence level that fluctuates around 20% to 25%.

Motivational interviewing is a collaborative conversational style that reinforces a person's own motivation and commitment to behavior change. It has been successfully tested in multiple domains related to health behavior change. It has also been adapted in Quebec in the area of vaccination and tested in maternity wards with postpartum mothers (Promovac study). Having led to an increase in the VCs of infants by an average of 7 percentage points and a 40% decrease in vaccine hesitancy, this approach has been in the process of being generalized to all maternity units in Quebec since 2017 (EMMIE program). It is indeed proving to be one of the most effective at present in improving confidence in early childhood vaccines.

OBJECTIVES The main objective of this research is to provide proof of concept that, in the French context of mandatory vaccination for infants but also of high rates of VH, an educational strategy based on the principles and techniques of motivational interviewing and carried out with parents in the maternity ward in the days following delivery can reduce vaccine hesitancy (VH).

The secondary objectives are as follows:

  • to verify that this reduction in VH is associated with a change in knowledge, attitudes, and beliefs regarding vaccines;
  • to verify that this reduction is sustainable (at 12 months);
  • to evaluate the acceptability and satisfaction of the interview for the parents

METHODS This is a pragmatic randomized controlled multicenter study with individual randomization unit comparing the impact of motivational interviewing to a standard care with a leaflet on vaccination.

Motivational interviewing will be carried out by trained midwives from the two participating maternity units (one in Marseille (Bouches-du-Rhône) and the other in Toulon (Var)), as part of the routine care provided to parturients. The midwives will be trained by the founding specialist of motivational interviewing in Quebec, during a two and a half day training course. This training will include a presentation of the theoretical foundations of this approach, its adaptation to the field of vaccination, and interactive games to put it into practice. The trained midwives will then be able to put this approach into practice during a one-month pilot period with parturients, during which they will be able to benefit from support in the form of a debriefing. The actual survey will only start at the end of this pilot phase.

In each group, a questionnaire will be offered to the women (couples) who have agreed to participate, both before the motivational interview (or delivery of the leaflet) and after the interview (or delivery of the leaflet). The second questionnaire will be completed before discharge from the maternity hospital. A third evaluation time is planned at 12 months in both groups: it will be carried out by internet or telephone.

The primary endpoint will be the change in the vaccine hesitancy score, measured by an international scale validated in French (Opel scale).

Secondary endpoints will be changes in knowledge, attitudes and beliefs about vaccination between the two groups as well as satisfaction with the ME and the brochure.

Randomization will be performed in blocks of 8, prior to acceptance for participation in this research.

EXPECTED BENEFITS If the results of this research provide proof of concept that the educational strategy based on motivational interviewing adapted to the vaccination of infants after delivery, in maternity wards, makes it possible, in the French context, to reduce VH, this will be a major advance in public health in France. Indeed, even if the vaccination obligations introduced in January 2018 have had a positive impact on infant vaccination coverage, VH remains present in parents in a proportion that remains worrying (20 to 25% according to surveys). The results of this research will then allow us to study the conditions for generalizing motivational interviewing in order to reinforce confidence in vaccination, which is lacking in a significant part of the French population.

Details
Condition Vaccination Promotion
Treatment Motivational Interviewing, Information flyer
Clinical Study IdentifierNCT05093452
SponsorObservatoire Regional de la Sante Provence-Alpes-Côte d'Azur
Last Modified on21 April 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Mothers aged 18 years or more
Mothers residing in the PACA region (Provence-Alpes-Côtes-d'Azur) at the time of the delivery
Mothers who can read and speak French
Mothers able to give a free and informed consent
Mothers who provide written consent

Exclusion Criteria

Mothers of new-born needing to be transferred in a 3rd level maternity ward (because of severe condition)
Mothers who will leave early maternity ward (<24h)
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