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Effectiveness of a Positive Mental Health Promotion Programme for Informal Caregivers of People With Dementia

8 mai 2026 mis à jour par: Sofia Canedo Garrido, University Rovira i Virgili

Effectiveness of a Positive Mental Health Promotion Programme for Adult Informal Caregivers of People With Dementia: A Randomised Controlled Trial Protocol

The primary objective of this study is to evaluate the effectiveness of the Mentis Plus+ Positive Mental Health Promotion Programme for caregivers (Mentis Plus+ Caregivers), compared with usual primary health care, in improving positive mental health among adult informal caregivers of people with dementia. The secondary objectives are to assess the programme's effectiveness in reducing symptoms of depression, anxiety and stress, as well as caregiver burden, compared with usual care.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Type d'étude

Interventionnel

Inscription (Estimé)

108

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Lieux d'étude

      • Porto, Le Portugal, 4464-513
        • Recrutement
        • Sofia Garrido
        • Contact:
        • Chercheur principal:
          • Sofia Canedo Garrido, Master

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

La description

Inclusion Criteria:

  • Informal caregivers of non-institutionalised individuals with dementia
  • Aged 18 years or older
  • A minimum of four months' experience in the informal caregiving role
  • Vulnerability in positive mental health, defined as a low or intermediate level in at least one dimension of the Positive Mental Health Questionnaire

Exclusion Criteria:

  • Unable to read and write in Portuguese
  • Currently participating in another intervention study targeting informal caregivers, or participation in such a study within the past 3 months

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: La prévention
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Seul

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Participants will take part in the Mentis Plus+ Caregivers programme

The Mentis Plus+ Caregivers programme is an adaptation of the Mentis Plus+ intervention for informal caregivers of people with dementia. The original Mentis Plus+ programme was developed based on the Multifactorial Model of Positive Mental Health.

The intervention will last 7 weeks (one session per week, each lasting approximately 1 hour) and may be delivered individually or in groups of 2 to 12 participants. It will consist of two initial sessions, followed by three sessions focused on the selected factor. In addition, a final session and a follow-up session (3 to 6 months after programme completion) will be conducted.

Mentis Plus+Caregivers is a positive mental health promotion programme for informal caregivers of people with dementia. It is organised into six modules: (F1) Personal Satisfaction; (F2) Prosocial Attitude; (F3) Self-control; (F4) Autonomy; (F5) Problem-solving and Self-actualisation; and (F6) Interpersonal Relationship Skills. Each module is delivered through three sequential sessions (A, B and C). The identification of target module is based on the results of the Positive Mental Health Questionnaire "low-scoring or declining" . In addition to the modular sessions, the programme includes two initial sessions, an introductory session (group or individual) and a first individual session, and two final sessions, consisting of a final assessment session and an individual follow-up session conducted between 3 and 6 months after programme completion. Participants are grouped according to the same module to be addressed.
Aucune intervention: Participants on a waiting list (control group)
Participants allocated to the control group will be informed that they will remain on a waiting list for a minimum of 3 to 6 months before receiving the Mentis Plus+ programme. Given the preventive nature of this study, the use of a waiting list control group is not expected to pose any risks or harm to participants.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Positive Mental Health Questionnaire (PMHQ)
Délai: PMHQ It will be administered at baseline of the Mentis Plus+ Caregivers programme for both groups.
This instrument consists of 39 items that assess thoughts, feelings, and behaviours, grounded in the multifactorial model of Positive Mental Health and its six key factors. The participants were invited to select the frequency option they most identified with, presented on a 4-point Likert scale (1 to 4): "always or almost always" (1), "most of the time" (2), "sometimes" (3), and "rarely or never" (4). This instrument makes it possible to calculate the level of positive mental health for each factor, allowing the identification of which factor, or factors, requires intervention. The score ranges from 39 to 156, with the possibility of categorizing into different levels depending on the results, namely low or languishing (39 to 78), intermediate (79 to 117), high or flourishing (118 to 156), with a higher score representing higher level of Positive Mental Health.
PMHQ It will be administered at baseline of the Mentis Plus+ Caregivers programme for both groups.
Positive Mental Health Questionnaire (PMHQ)
Délai: PMHQ will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
This instrument consists of 39 items that assess thoughts, feelings, and behaviours, grounded in the multifactorial model of Positive Mental Health and its six key factors. The participants were invited to select the frequency option they most identified with, presented on a 4-point Likert scale (1 to 4): "always or almost always" (1), "most of the time" (2), "sometimes" (3), and "rarely or never" (4). This instrument makes it possible to calculate the level of positive mental health for each factor, allowing the identification of which factor, or factors, requires intervention. The score ranges from 39 to 156, with the possibility of categorizing into different levels depending on the results, namely low or languishing (39 to 78), intermediate (79 to 117), high or flourishing (118 to 156), with a higher score representing higher level of Positive Mental Health.
PMHQ will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
Positive Mental Health Questionnaire (PMHQ)
Délai: The PMHQ will be re-administered for follow-up assessment approximately 3 months after study completion in both groups.
This instrument consists of 39 items that assess thoughts, feelings, and behaviours, grounded in the multifactorial model of Positive Mental Health and its six key factors. The participants were invited to select the frequency option they most identified with, presented on a 4-point Likert scale (1 to 4): "always or almost always" (1), "most of the time" (2), "sometimes" (3), and "rarely or never" (4). This instrument makes it possible to calculate the level of positive mental health for each factor, allowing the identification of which factor, or factors, requires intervention. The score ranges from 39 to 156, with the possibility of categorizing into different levels depending on the results, namely low or languishing (39 to 78), intermediate (79 to 117), high or flourishing (118 to 156), with a higher score representing higher level of Positive Mental Health.
The PMHQ will be re-administered for follow-up assessment approximately 3 months after study completion in both groups.

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Depression anxiety stress scale-21 (DASS-21)
Délai: DASS-21 It will be administered at baseline of the Mentis Plus+ Caregivers programme for both groups.
The Depression Anxiety Stress Scale with 21 items (DASS-21) is the short version of the original DASS, which is composed of 42 items. This self-reported tool represents a three-part model that assesses emotional states with three subscales: depression, anxiety, and stress. The participants are invited to assess each statement with a 4-point Likert scale (0 to 3), from (0) = "nothing applied to me" to (3) = "applied to me most of the time", indicating the extent to which they experienced each symptom in the last week. The scale provides three scores, one per subscale, ranging from 0 to a maximum of 21. Higher scores represent more negative affective states
DASS-21 It will be administered at baseline of the Mentis Plus+ Caregivers programme for both groups.
Depression anxiety stress scale-21 (DASS-21)
Délai: DASS-21 It will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
The Depression Anxiety Stress Scale with 21 items (DASS-21) is the short version of the original DASS, which is composed of 42 items. This self-reported tool represents a three-part model that assesses emotional states with three subscales: depression, anxiety, and stress. The participants are invited to assess each statement with a 4-point Likert scale (0 to 3), from (0) = "nothing applied to me" to (3) = "applied to me most of the time", indicating the extent to which they experienced each symptom in the last week. The scale provides three scores, one per subscale, ranging from 0 to a maximum of 21. Higher scores represent more negative affective states
DASS-21 It will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
Depression anxiety stress scale-21 (DASS-21)
Délai: DASS-21 It will be re-administered for follow-up assessment approximately 3 months after study completion in both groups.
The Depression Anxiety Stress Scale with 21 items (DASS-21) is the short version of the original DASS, which is composed of 42 items. This self-reported tool represents a three-part model that assesses emotional states with three subscales: depression, anxiety, and stress. The participants are invited to assess each statement with a 4-point Likert scale (0 to 3), from (0) = "nothing applied to me" to (3) = "applied to me most of the time", indicating the extent to which they experienced each symptom in the last week. The scale provides three scores, one per subscale, ranging from 0 to a maximum of 21. Higher scores represent more negative affective states
DASS-21 It will be re-administered for follow-up assessment approximately 3 months after study completion in both groups.
Caregiver burden scale (CBS)
Délai: CBS It will be administered at baseline of the Mentis Plus+ programme for both groups.
This self-report instrument measures objective and subjective burden, providing useful information on the impact of caregiving in areas such as health, social and personal life, financial condition, emotional well-being, perception of self-efficacy, and interpersonal relationships, as reported by caregivers. Each item is scored from (1) = "never" to a maximum of (5) = "nearly always". This scale presents a score range from 22 to 110, where a higher score corresponds to a greater perceived burden, with the following cut-off points: no burden (22-46 points), mild burden (47-55 points), and severe burden (56-110 points)
CBS It will be administered at baseline of the Mentis Plus+ programme for both groups.
Caregiver burden scale (CBS)
Délai: CBS It will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
This self-report instrument measures objective and subjective burden, providing useful information on the impact of caregiving in areas such as health, social and personal life, financial condition, emotional well-being, perception of self-efficacy, and interpersonal relationships, as reported by caregivers. Each item is scored from (1) = "never" to a maximum of (5) = "nearly always". This scale presents a score range from 22 to 110, where a higher score corresponds to a greater perceived burden, with the following cut-off points: no burden (22-46 points), mild burden (47-55 points), and severe burden (56-110 points)
CBS It will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
Caregiver burden scale (CBS)
Délai: CBS will be re-administered for follow-up assessment approximately 3 months after study completion in both groups.
This self-report instrument measures objective and subjective burden, providing useful information on the impact of caregiving in areas such as health, social and personal life, financial condition, emotional well-being, perception of self-efficacy, and interpersonal relationships, as reported by caregivers. Each item is scored from (1) = "never" to a maximum of (5) = "nearly always". This scale presents a score range from 22 to 110, where a higher score corresponds to a greater perceived burden, with the following cut-off points: no burden (22-46 points), mild burden (47-55 points), and severe burden (56-110 points)
CBS will be re-administered for follow-up assessment approximately 3 months after study completion in both groups.
Sociodemographic and caregiving characteristics questionnaire
Délai: Sociodemographic and caregiving characteristics questionnaire will be collected at baseline of the Mentis Plus+Caregivers programme for both groups.
Participant characteristics: age, sex, education, marital status, employment status, relationship to care recipient, years as a caregiver, daily hours of care, cohabitation/distance, sole caregiver status, caregiver training, area of residence, available support, and free time
Sociodemographic and caregiving characteristics questionnaire will be collected at baseline of the Mentis Plus+Caregivers programme for both groups.
Ad hoc Mentis Plus+ Caregivers Programme satisfaction questionnaire
Délai: The ad hoc Mentis Plus+ Caregivers Programme satisfaction questionnaire will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.
This questionnaire was developed by the research team to assess caregivers' satisfaction with the programme, including perceived usefulness, applicability in daily life, adequacy of the sessions, clarity of the materials, session format, and facilitator performance.
The ad hoc Mentis Plus+ Caregivers Programme satisfaction questionnaire will be administered 6 weeks after the beginning of the Mentis Plus+ Caregivers programme for both groups.

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

3 mai 2026

Achèvement primaire (Estimé)

2 mai 2027

Achèvement de l'étude (Estimé)

24 septembre 2027

Dates d'inscription aux études

Première soumission

3 mai 2026

Première soumission répondant aux critères de contrôle qualité

3 mai 2026

Première publication (Réel)

11 mai 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

13 mai 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

8 mai 2026

Dernière vérification

1 mai 2026

Plus d'information

Termes liés à cette étude

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

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