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| ID | Type | Description | Link |
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| PTDC/PSI-GER/3110/2021 | Other Identifier | Foundation for Science and Technology |
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| Name | Class |
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| Unidade Local de Saúde de Coimbra, EPE | OTHER |
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Postpartum Depression (PPD) is a Major Depressive (MD) Disorder occurring within the 12 months after delivery with negative effects to the mother, the child and the family and an estimated prevalence in Europe of 10-15%. Non-invasive Transcranial Direct Current Stimulation (tDCS) has been suggested to PPD, as it combines antidepressant effects with low risks, being equivalent to pharmacotherapy, and showing faster response than psychotherapy. tDCS uses a weak electric current applied to the scalp, modulating neurons' firing rate and neuroplasticity of cerebral circuits to counteract dysfunctional connectivity and inter-hemispheric imbalance in MD. tDCS portability led to its introduction as a home-based intervention and trials assessing home-based tDCS in MD were successful, proved its feasibility and showed good acceptance and benign effect in patients' self-efficacy. Hence, combining home-based tDCS with eHealth systems to support data collection and teleHealth for remote health care has shown positive results in other neuropsychiatric disorders.
To uptake tDCS to PPD, further research is needed. To pursue the needed regulatory steps, current consensus on the primary hypothesis of efficacy is that future phase-III studies must be supported by the identification of biotypes of depression and should include cost-effectiveness analysis to model its economic advantage and inform Health Technology Analysis.
4MUMs, within an iterative user-centred and co-design approach will adopt a combined intervention (home-based tDCS + eHealth system + teleHealth system) for PPD, conduct a dynamic feasibility study of the data collection procedures and intervention, and test these in a single-arm pilot study towards the first large-sample multicentre Phase-III RCT protocol aimed at testing home-based tDCS efficacy in PPD.
Study aims and endpoints:
Aim 1: Conduct a feasibility study to
Aim 2: Conduct a pilot study to
a) Gather preliminary evidence of the efficacy of the combined intervention in PPD as measured by psychological functioning of mothers, babies and the dyad, neuroinflammatory and stress levels and quality of life (QoL), and the role of study moderators (genetic/epigenetic profiles of mothers and babies) in affecting main outcomes.
Study design. Feasibility studies aim to inform large RCT studies. Thus, for the feasibility study, the investigators aim to inform the practicality of the future Phase-III RCT and to unveil threats to the validity of the efficacy outcomes. Within a users'-centred approach and co-designed methodology, the investigators will assess safety, feasibility of the intervention, and feasibility of procedures for outcomes' assessment. Additionally, the investigators will estimate recruitment/retention and sample size. A consequent underpowered pilot study will be conducted following the achieved static protocol, based on the assumption that the procedures are well defined, serving the purpose of gathering preliminary information and testing the study protocol. Both the feasibility and the pilot studies will be open-label, single arm, single-site longitudinal studies.
Procedure. 4MUMS is divided in 3 stages:
Month 1-6 - Pre-feasibility study (Tasks 1-5) - 10 stakeholders (3 practitioners, 2 external expert researchers, 2 patients' representatives, 2 woman woman diagnosed with PPD will be recruited to support the identification of the steps, challenges and solutions to adapt a combined procedure to PPD in a co-design approach exploring their views/experiences with the training materials, assessment procedures and the combined intervention (tDCS + ehealth + teleHealth) using Soterix "1X1 tDCS miniCT" device, model 1601 and ELECTRA-RX (Soterix Medical Inc., NY, US).
Month 7-17 - Feasibility study (Tasks 6-12) Up to 15 medication-free women with mild-severe PPD, their babies and their perinatal Health Practitioner (HP) will be recruited. Recruitment will depend on referrals from Ob-Gyn physicians from the DGONR-CHUC. Women will be informed about 4MUMs and, after consenting, will be assessed for eligibility. Eligible women will be invited to participate and complete monthly screening assessments between the third trimester of pregnancy and up to six months after delivery using the Edinburgh Postnatal Depression Scale. When positive (EPDS>10) during pregnancy, women will be asked to go on completing screening across trimesters and will be referred to their perinatal mental health (PMH) team. After delivery, these women may be included in the intervention group (IG) if EPDS>10. Women screening positive in the postpartum will be invited to enter the IG. The HP will be asked to complete acceptability questionnaires at start of the intervention and end of treatment (N=25).
tDCS protocol. tDCS electrodes will be positioned over the dorsolateral prefrontal cortexes (DLPFC), using the Omni-Lateral-Electrode system. OLE results from studies on tDCS montages in the frontal cortex, concluding that current intensity at the DLPFC can be shaped but not focused, balancing increased focality, reduced electric field variability and clinical ease-of-use. The tDCS protocol was selected from previous literature for non-resistant MD and home-based tDCS for MD and will include daily stimulation sessions (2mA, 30 minutes, across three consecutive weeks (5/week). A second tDCS cycle may be repeated if a pre-set benchmark of ≥25% improvement of PPD symptoms is not met at the end of the first cycle.
The tDCS device and the ehealth/teleHealth systems (ELECTRA-RX) are introduced to patients during at-home training. Educational materials are provided through eHealth. tDCS is self-delivered with teleHealth support ensured across the tDCS course. Both eHealth and teleHealth will be delivered through women' cell-phone connected to ELECTRA-RX.
Month 18-34 - Pilot study (Tasks 13-19). Up to 32 medication-free women with mild-severe PPD, their babies and their HP will be recruited. Recruitment, outcomes' assessment procedures and intervention will follow stage 2 adjusted protocol.
Outcomes. Feasibility outcomes will include measures of compliance, acceptability and tolerability for home-based tDCS and for assessment procedures. The multimodal approach to measure the effect of the intervention includes clinical measures of psychological functioning, mother-baby bonding, mothers' levels of neuroinflammatory and stress/cortisol, quality of life (QoL), and child neurodevelopment and temperament. The investigators will study genetic polymorphisms and epigenetic modifications of mothers as moderators of treatment response. The study of child neuroinflammatory, stress/cortisol and epigenetic profiles will support the test of the association between neurodevelopment and mothers' clinical status.
Data analysis. 4MUMs will conduct descriptive analysis for feasibility, estimates of recruitment and retention rates. To observe intervention impact, underpowered analysis will be conducted using repeated measures ANOVA tests (T1,T2/T3/FU) for clinical symptoms, bonding, QoL, stress and neuroinflammatory levels, adjusting to covariates.
Sample size. The sample size for feasibility studies should support the estimate of critical parameters to the necessary degree of precision. For the feasibility study, the investigators will recruit up to 15 participants, until reaching the definite procedures to be tested. The sample size estimate for the pilot study is based on pervious literature, considers just the primary hypothesis of efficacy and accounts for a dropout rate of 20%. The investigators estimate 32 women, to detect an effect size of .60, with a significance alpha level of .05 and .85 power, using repeated measures ANOVA tests. In Coimbra, there are approximately 5000 births per year, which according to the lowest incidence rates in Europe, represent 450 women diagnosed with PPD, around 20% of which with previous psychiatric conditions. However, women naturally hesitate novel treatments, hence the investigators estimate an acceptance rate of 50%, leading to 180 participants/year to be contacted.
Expected results. Our results will inform the multicentred Phase-III RCT protocol in what concerns safety of the procedure, feasibility of the intervention and feasibility of the multimodal approach to measure the impact of tDCS and its moderators. Previous experience suggests that the intervention will be well accepted and tolerated, offering the first step for the development of a novel medication-free intervention, improving the quality of health services while lowering the costs for mothers, families and the health system.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| home-based remotely supervised tDCS | Experimental | The intervention combines home-based tDCS (1 or 2 cycles of 15 daily sessions for 3 weeks/cycle at 2 mA for 30 minutes) with tele-health for remote supervision and e-health for self-monitoring of depressive symptoms. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Transcranial Direct Current Stimulation | Device | Transcranial Direct Current Stimulation (tDCS) has been suggested to the peripartum period combining antidepressant effects with low risks. In tDCS a low intensity constant current is delivered to the scalp with sub-threshold effect on neurons' resting membrane potential. Long stimulation sessions lead to lasting effects and neuroplastic changes. Local tDCS effects target calcium-dependent synaptic plasticity and distal effects alter the networks' connectivity, synchronicity and oscillatory patterns. tDCS applications aim to counteract the hypoactivity of the frontoparietal network and the left sided hyperactivity of the default mode network associated with depressive symptoms. |
| Measure | Description | Time Frame |
|---|---|---|
| Feasibility of the intervention - Number of completed tDCS applications | Study reports on the number of completed tDCS applications | At end of treatment (cycle 1 or 2; each cycle is 3 weeks) |
| Change from Baseline on the feasibility of the intervention according to patients. | The Acceptability Scale for tDCS treatments - patients version (ACCEPT-tDCS) is a 15-item self-report questionnaire on acceptability of tDCS by patients with a minimum score of 15 and a maximum score of 60. Higher scores correspond to increased acceptability. | At baseline, at end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Change across treatment and follow-up time points on the feasibility of the intervention - Compliance with symptom monitoring | Study reports on patients compliance with symptom monitoring | Weekly from week 1 to week 3 (or week 6 if 2 cycles; each cycle is 3 weeks) and at 1 month follow-up |
| Change across treatment and follow-up time points on the feasibility of the assessment procedures - Compliance with outcomes assessment visits | Study Reports on patients compliance with outcomes assessment visits. | At the end of treatment cycle 1 and the end of treatment cycle 2 (if 2 cycles are prescribed; each cycle is 3 weeks), and at 1 month follow-up |
| Change from baseline depressive symptoms. | Change across treatment and follow-up time points on the Edinburgh Postpartum Depression Scale (EPDS), a 10-item questionnaire to assess the presence and severity of clinically relevant depressive symptoms in the prior week using a 4-point scale. Self-report questionnaire to assess depressive symptoms in the postpartum (through e-health). Scores range between 10 and 40 and higher scores correspond to increased presence/severity of depressive symptoms. |
| Measure | Description | Time Frame |
|---|---|---|
| Change from Baseline on the feasibility of the intervention according to Health Providers | The Acceptability Scale for tDCS treatments - Halth Professionals version (ACCEPTpro-tDCS) a 15-item self-report questionnaire on acceptability of tDCS by health professionals with a minimum score of 15 and a maximum score of 60. Higher scores correspond to increased acceptability. | At baseline, at end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Ana Ganho-Ávila, PhD | Contact | 00351968106007 | ganhoavila@fpce.uc.pt | |
| Mariana Moura Ramos, PhD | Contact | 00351 918579020 | marianamramos@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Ana Ganho-Ávila, PhD | University of Coimbra | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | European Parliament A8-0380/2016. (2017). European Union. https://www.europarl.europa.eu/doceo /document/TA-8-2017-0028_EN.html | ||
| 32187319 | Background | Borrione L, Bellini H, Razza LB, Avila AG, Baeken C, Brem AK, Busatto G, Carvalho AF, Chekroud A, Daskalakis ZJ, Deng ZD, Downar J, Gattaz W, Loo C, Lotufo PA, Martin MDGM, McClintock SM, O'Shea J, Padberg F, Passos IC, Salum GA, Vanderhasselt MA, Fraguas R, Bensenor I, Valiengo L, Brunoni AR. Precision non-implantable neuromodulation therapies: a perspective for the depressed brain. Braz J Psychiatry. 2020 Aug;42(4):403-419. doi: 10.1590/1516-4446-2019-0741. Epub 2020 Mar 16. | |
| 31005790 |
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| ID | Term |
|---|---|
| D019052 | Depression, Postpartum |
| D003863 | Depression |
| ID | Term |
|---|---|
| D011644 | Puerperal Disorders |
| D011248 | Pregnancy Complications |
| D005261 | Female Urogenital Diseases and Pregnancy Complications |
| D000091642 | Urogenital Diseases |
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| ID | Term |
|---|---|
| D065908 | Transcranial Direct Current Stimulation |
| ID | Term |
|---|---|
| D004599 | Electric Stimulation Therapy |
| D013812 | Therapeutics |
| D003295 | Convulsive Therapy |
| D013000 | Psychiatric Somatic Therapies |
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Feasibility studies aim to inform large RCT studies. Thus, for the feasibility study, the investigators aim to inform the practicality of the future Phase-III RCT and to unveil threats to the validity of the efficacy outcomes. Within a users'-centred approach and co-designed methodology, the investigators will assess safety, feasibility of the intervention, and feasibility of procedures for outcomes' assessment. Additionally, the investigators will estimate recruitment/retention and sample size. A consequent underpowered pilot study will be conducted following the achieved static protocol, based on the assumption that the procedures are well defined, serving the purpose of gathering preliminary information and testing the study protocol. Both the feasibility and the pilot studies will be open-label, single arm, single-site longitudinal studies.
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|
| At baseline and weekly, from week 1 to week 3 (or from week 1 to week 6 if 2 cycles were prescribed) and 1 month follow-up |
| Feasibility of the intervention - tDCS Adverse Effects | tDCS Adverse Effects Questionnaire is a 15-item questionnaire to assess adverse effects of tDCS. Scores range between 0-75, and higher scores correspond to increased adverse effects | Daily during intervention (3 weeks or 6 weeks when adequate) and 1 month follow-up |
| Feasibility of the intervention -Health Technology Users' Satisfaction Survey | The survey satisfaction is a 8-item questionnaire on user's satisfaction concerning the combined intervention ranging between 0 and 40, and higher scores correspond to increased satisfaction. | At the end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Change from Baseline on the feasibility of the assessment procedures - Acceptability of outcomes assessment visits by women | Study reports on the subjective experience of mothers with outcomes assessment visits (response to an open-question). | At baseline, at the end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Change from Baseline on the feasibility of the assessment procedures - Acceptability of outcomes assessment visits (newborn-infants) | Study reports on the subjective experience of mothers on the acceptability of newborn/babies acceptability of outcomes assessment visits (response to an open-question). | At baseline, at the end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Estimate of recruitment | Study reports on recruitment | At the end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Estimate of retention | Study reports on retention | At the end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Estimate of dropouts | Study reports on dropouts | At the end of treatment (cycle 1 or 2; each cycle is 3 weeks) and 1 month follow-up. |
| Change from Baseline in Clinical Status according to depressive symptoms. | Clinical status assessment according to Montgomery-Åsberg Depression Rating Scale (MADRS), a self report 10-item questionnaire to assess the presence and severity of clinically relevant depressive symptoms in the prior week using a 4-point scale, ranging from 0-40; higher scores mean worse clinical status | At baseline and weekly during the 3 weeks of tDCS cycle (or during 6 weeks if tDCS cycle 2 is prescribed) and at one month follow-up |
| Change from Baseline in Clinical Status according to anxiety symptoms | Clinical status assessment according to Generalized Anxiety Disorder 7 (GAD-7), a 7-item tool used to screen for and assess the severity of generalized anxiety disorder in the preceding 2 weeks, rated on a 4-point scale, from 0-28 where higher scores correspond to increased presence/severity of anxiety symptoms. | At baseline and weekly during the 3 weeks of tDCS cycle (or during 6 weeks if tDCS cycle 2 is prescribed) and at one month follow-up |
| Change from Baseline in Clinical Status according to difficulties in emotion regulation. | The Difficulties in Emotion Regulation Scale - Short Form (DERS) is a 18-items questionnaire to assess difficulties in using adaptive emotional regulation strategies, using a 5-point Likert scale, ranging from 18 to 72, where higher scores correspond to increased difficulties. | At baseline and weekly during the 3 weeks of tDCS cycle (or during 6 weeks if tDCS cycle 2 is prescribed) and at one month follow-up |
| Change from Baseline in Clinical Status according to Sleep quality | The Pittsburgh Sleep Quality Index (PPBQ) is a 19-item questionnaire using a 4-point likert scale to assess sleep quality and disturbance over a one-month time interval, ranging between 0-57 where higher scores correspond to decreased quality of sleep. | At baseline and weekly during the 3 weeks of tDCS cycle (or during 6 weeks if tDCS cycle 2 is prescribed) and at one month follow-up |
| Change from Baseline in Clinical Status according to Ruminative Thinking | The Ruminative Response Scale - Short Form7 (RRS) is a 10-item questionnaire to assess ruminative thinking, answered on a 4-point Likert scale, ranging from 0-30 where higher scores correspond to increased presence of ruminative thinking processes | At baseline and weekly during the 3 weeks of tDCS cycle (or during 6 weeks if tDCS cycle 2 is prescribed) and at one month follow-up |
| Infant and Toddler Development | The Bayley Scales of Infant and Toddler Development will be used to assess the developmental competences of infants from 1 to 42 months of age, consisting of 5 scales: Cognitive, Language, Motor, and Social-emotional and an Adaptive behaviour questionnaire that is completed by the mother. Composite scores are derived for cognitive, language, and motor development and scaled to a metric, with a mean of 100, standard deviation of 15, and range of 40 to 160. | At baseline and 1 month follow-up |
| Change from Baseline in bonding quality in mother-baby dyad. | The Postpartum Bonding Questionnaire is a self-report 25-item questionnaire to assess early indication of disorders within mother-infant relationships, to be rated in a 5-point Likert scale. Higher scores correspond to increased dysfunction of the dyad. | At week 1, week 3 (and week 6 if two tDCS cycles where prescribed; each cycle is 3 weeks) of treatment and at 1 month follow-up. |
| Change from Baseline in parental stress. | Parenting Stress Index (PSI) will be used to measure the relative stress in the parent-child relationship, primarily intended for parents of children 0-3 years. The PSI consists of a 120-item test with an optional 19-item Life Stress Scale. Its scores range between 15 and 100, and higher scores correspond to increased parental stress. | At week 1, week 3 (and week 6 if two tDCS cycles where prescribed; each cycle is 3 weeks) of treatment and at 1 month follow-up. |
| Quality of Life according to the EuroQol five dimensions, five level questionnaire - EQ-5D-5L | The EQ-5D-5L is a widely used questionnaire in clinical trials, observational studies and other health surveys. The questionnaire consists of a visual analogue scale and five questions (mobility, self-care, usual activities, pain or discomfort, and anxiety or depression) with five answer alternatives each. There are 3^5 = 243 combinations of the levels, each of which can be described with a five-digit number, such that the pattern 11111, indicates the optimal health state and the pattern 55555 indicates the worse health state possible. | At baseline and 1 month follow-up |
| Mother epigenetic biomarkers (collected during at-home visits) | Epigenetic modifications of different neuroinflammatory genes (DNA methylation [DNAm] ) will be analysed. Saliva samples will be collected using ORAGene® (OG-500) device (for DNA extraction). | At baseline and 1 month follow-up |
| Mother genetic biomarkers (collected during at-home visits) | Genetic variations in the serotonin transporter gene SLC6A4 will be anlysed by sequencing analysis. Saliva samples will be collected using ORAGene® (OG-500) device (for DNA extraction). | At baseline |
| Quantification of neuroinflammatory biomarkers of mothers (collected during at-home visits) | Quantification of around 200 neuroinflammatory biomarkers will be analysed. Saliva samples will be collected using roll cotton device Salivettes (for protein analysis) and hair samples (for cortisol analysis). | At baseline and 1 month follow-up |
| Baby epigenetic biomarkers (collected during at-home visits) | Epigenetic modifications of different neuroinflammatory genes (DNA methylation [DNAm] ) will be analysed. Saliva samples will be collected using ORAGene® (OG-500) device (for DNA extraction). | At baseline and 1 month follow-up |
| Quantification of neuroinflamatory biomarkers of babies (collected during at-home visits) | Quantification of around 200 neuroinflammatory biomarkers will be analysed. Saliva samples will be collected using roll cotton device Salivettes (for protein analysis). | At baseline and 1 month follow-up |
| Baby genetic biomarkers (collected during at-home visits) | Genetic variations in the serotonin transporter gene SLC6A4 will be anlysed by sequencing analysis. Saliva samples will be collected using ORAGene® (OG-500) device (for DNA extraction). | At baseline |
| Background |
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| 26594739 | Background | Orsmond GI, Cohn ES. The Distinctive Features of a Feasibility Study: Objectives and Guiding Questions. OTJR (Thorofare N J). 2015 Jul;35(3):169-77. doi: 10.1177/1539449215578649. |
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| D003866 | Depressive Disorder |
| D019964 | Mood Disorders |
| D001523 | Mental Disorders |
| D001526 | Behavioral Symptoms |
| D001519 | Behavior |
| D004191 | Behavioral Disciplines and Activities |
| D004597 | Electroshock |
| D011580 | Psychological Techniques |