A Randomized Controlled Trial to Evaluate the Effectiveness of a Mobile Technology Intervention in the Treatment of Depressive Symptoms in People With Diabetes or Hypertension in Peru

Epidemiologic research has clearly established the significant public health importance of mental disorders in low- and middle-income countries (LMIC). Among mental disorders, depression has become a major problem as a single condition and, more often, as part of complex clinical settings in which multiple conditions and risk factors are combined.

There is substantial co-morbidity between depression and chronic physical conditions, and the outcome of both conditions is impaired when there is this co-morbidity. Most of the disease burden in Latin America is attributable to chronic diseases such as cardio-vascular diseases as hypertension and diabetes, as well as to mental disorders such as depression. Despite the public health impact of depression, it often goes unrecognized and untreated. One important factor for this treatment gap are the limited financial and human resources. The mental health resources available in LMIC are often not optimally distributed either. Funds and trained personnel are typically allocated to tertiary health care services, such as psychiatric hospitals.

Therefore, any short- and medium-term efforts to develop, evaluate, and disseminate effective mental health interventions in LMIC must adapt to these severe workforce shortages, resource limitations, and budgetary inequities. The mental health field needs to consider developing self-help automated interventions that can reach people where there is insufficient access to specialized health care providers. This can be partially addressed applying two strategies: 1) increasing effective self-management; and 2) task-shifting roles to less specialized but appropriately trained health workers.

The investigators are conducting a randomized controlled trial with individuals with chronic diseases, i.e. hypertension and/or diabetes, and symptoms of depression in primary health centers and hospitals in Lima, Peru. Participants will be randomly assigned to the control arm or the intervention arm. The later will receive the CONEMO intervention, monitored by nurses.

The focus of this project is on using a self-help intervention that provides advice, support, and motivation. However, studies suggest that depressed patients left alone with the devices fail to make good use of self-help interventions. Therefore, nurses will monitor participants by a web-based dashboard connected to the smartphone application (CONEMO), motivate to continue using CONEMO if participants are non-adherent and give technical support. Nurses will take part in supervision meetings at least once a week.