Advanced search
Start date

Intelligent phenotyping with machine learning for therapeutic personalization in a digital sleep improvement program

Grant number: 21/12139-0
Support type:Research Grants - Innovative Research in Small Business - PIPE
Duration: April 01, 2022 - March 31, 2024
Field of knowledge:Health Sciences - Collective Health - Public Health
Cooperation agreement: SEBRAE-SP
Principal researcher:Laura de Siqueira Castro
Grantee:Laura de Siqueira Castro
Company:Vigilantes do Sono - Qualidade de Vida e Tecnologia Ltda
CNAE: Educação profissional de nível tecnológico
Atividades de serviços de complementação diagnóstica e terapêutica
Atividades de atenção à saúde humana não especificadas anteriormente
City: São Paulo
Pesquisadores principais:
Rogério Santos da Silva
Assoc. researchers: Caio Macedo Athayde Bonadio ; Dalva Lucia Rollemberg Poyares ; Daniel Ninello Polesel ; Helena Hachul de Campos ; Tatiana de Aguiar Vidigal
Associated grant(s):21/15074-6 - Intelligent phenotyping with machine learning for therapeutic personalization in a digital sleep improvement program, AP.PIPE
Associated scholarship(s):22/06016-5 - Intelligent phenotyping with machine learning for therapeutic personalization in a digital sleep improvement program, BP.TT
22/06595-5 - Intelligent phenotyping with machine learning for therapeutic personalization in a digital sleep improvement program, BP.TT


Sleep disturbances are prevalent, associated with relevant health outcomes, and generally underdiagnosed. More than 80 disorders are described by the International Classification of Sleep Disorders (AASM, 2014), being insomnia and sleep-disordered breathing the most frequent. The overlap between these two conditions is also high, with ~50% of patients with sleep apnea also experiencing insomnia. Data from the EPISONO study show that about 1/3 of the adult population report chronic insomnia, while approximately 1/10 have severe apnea, and both conditions double the risk for emergency care and hospitalizations in two years.Vigilantes do Sono's mission is to help people to identify and care for their sleep problems, with the vision of becoming a public health strategy. Its current product is a digital Cognitive-Behavioral Therapy for Insomnia (CBT-I). It is innovative and the first built with chatbot and artificial intelligence (AI). It includes ~51 short sessions (5-10 minutes), distributed in seven modules, and guided by a virtual assistant. So far, more than 30,000 people have accessed the application, around 600 health professionals have registered on the telemonitoring platform, and several companies have hired the solution as a benefit for employees/customers. The program's feasibility study indicated its accessibility, usability and effectiveness. About 86% of users who completed all modules reported improvements on sleep quality, with an average increase of 67.3 (52.8-81.8) minutes in total sleep time. The benefits and cost-effectiveness of the digital program are clear, in addition to its potential social impact, due to the reduction in healthcare costs and increased productivity. However, the proportion of individuals with insomnia who do not engage in or respond to therapeutic modalities is large. Different reasons can explain these effects. It is reasonable to assume that the overlap with other sleep disorders, such as sleep apnea, is one of them. In addition, one of the main complaints related to disengagement is the need to fill in sleep diaries, which are crucial for personalizing therapy. Currently, the program relies on users manually entering sleep data. In this sense, modules allowing for the acquisition of objective sleep related data can increase the program's accessibility, engagement and effectiveness.Thus, the present study aims to develop digital phenotyping methods by capturing the smartphone's accelerometer, microphone, and camera data, to measure the sleep pattern and anthropometric, craniofacial and intraoral characteristics related to the risk of sleep apnea, as well as by integrating objective and subjective data into the AI, enhancing machine learning.Specific questions involving risk for sleep apnea and other comorbidities will be added along with those already available in the app. Modules for the assessment of objective sleep data, the occurrence of snoring, and measurements of neck circumference and craniofacial images will be developed and modeled with volunteers using the application. They will be recruited and randomly referred to polysomnography either in the laboratory or at home, and simultaneously, in both groups, they will be evaluated by the tools incorporated into the application. All volunteers will use actigraphs for 14 consecutive days and, on each night, they will also be simultaneously monitored by the application with the smartphone.The application of supervised machine learning integrating subjective and objective sleep data, to indicate overlapping between sleep disorders and other clinical conditions, will improve the phenotype identification, enriching customization and content adaptation by the AI, expanding the scope and cost-utility of services offered by Sleep Watchers. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
Articles published in other media outlets (0 total):
More itemsLess items

Please report errors in scientific publications list by writing to: