Pain ASsessment in CAncer Patients by Machine LEarning (PASCALE)

In cancer patients, the integration between anticancer therapies and palliative care is of fundamental importance. In this context, telemedicine can improve the quality of life (QoL) of chronic patients through self-management and remote monitoring solutions. This approach can favor the effectiveness of the treatment and therapeutic adherence. Of note, telemedicine can also be applied to the management of cancer pain. In the advanced stages of cancer disease, pain is one of the most obvious and most disabling symptoms. Consequently, proper pain management has a significant impact on the QoL, the ability to withstand treatment, and the recovery of patients. On the other hand, given the complexity of cancer pain, the main obstacle to its proper management is the lack of adequate measurement methods. Although in recent years a great deal of effort has been made in the direction of automatic pain assessment, both concerning the creation of datasets and the development of classification algorithms, the literature is lacking regarding the automatic measurement of pain in the setting of cancer patients. Observation by experienced clinical staff and self-assessment by patients could be useful for obtaining the ground truth and, in turn, for training automatic pain recognition systems.

For the entire duration of the study, patients will remain under the care of the Early Palliative Care and Simultaneous Care Outpatient team of the Istituto Nazionale Tumori, Fondazione Pascale, at home. Pain and other symptoms will be managed according to the good clinical practice and patients will receive assistance in agreement to the routine medical care.

The following devices will be used:

1. Software
2. Instrumentation
3. Clinical Assessment Tools: European Organisation for Research and Treatment of Cancer Quality-of-life Questionnaire Core 30 (EORTC QLQ-C30), Daily Pain Diary, 0-10 numeric rating scale (NRS).

The project will be divided into three main Work Packages (WPs), dedicated respectively to the creation of the IT infrastructure to support acquisitions (WP1), the patient data collection campaign (WP2), and the development of machine learning algorithms for automatic pain recognition (WP3). The application of the devices and verification of correct functioning will be carried out at the patient's home by the IT staff involved in the study.

WP1 - The system consists of three main components: the server, with the attached database, the application for mobile devices, also responsible for managing data acquisition from physiological signal acquisition devices, and the desktop application, used by the clinical staff to monitor the progress of data collection.

The mobile application will have the role of interfacing directly with the patient and acquiring biometric data from wearable devices. Specifically, the following signals will be acquired: heart rate, body temperature, non-invasive blood pressure, and galvanic skin response (GSR). The heart rate will be obtained through a wearable device (Garmin Vivosmart 4) while the body temperature, the non-invasive blood pressure, and the GSR will be acquired by an external device (a BITalino platform).To further validate the accuracy of the algorithm that will deal with pain detection, patients will also be given a QoL questionnaire (EORTC QLQ-C30).

In order to acquire the ground truth of the data, the patient will be asked to provide feedback on the level of pain, both at certain intervals of time during the day, and in case of acute pain episodes. This feedback can be based on NRS and multimedia strategies (e.g., videos). Patients will fill out a daily pain diary.

WP2 - The campaign will include a preliminary acquisition phase aimed at testing the IT infrastructure. For obtaining an adequate inter-subject and intra-subject variability, it will be necessary to enroll at least 40 patients, acquiring data for 10-14 days. Thus, the data collection campaign will be conducted for about 6 months. Each subject will use the mobile application and sensors for 2 weeks. Data will be acquired using simultaneously data collection bundles (application, sensors, and any mobile device). Upon enrolment and at the end, EORTC QLQ-C30 will be administered.

WP3 - The objective is the development of algorithms able to predict the level of pain perceived by the patient. Having a considerable amount of labelled data available, the system will learn from the examples.

Eligibility Criteria:
Inclusion Criteria:

* Patients aged \> 18 years
* Home care patients diagnosed with advanced cancer disease and life expectancy ≤ 1 year
* Patients receiving treatment for cancer pain
* Patients who have given their consent

Exclusion Criteria:

* Patients aged \< 18 years
* Willingness to sign the informed consent form (unable to read or write)
* Cognitive deficit (e.g. Alzheimer disease or senile dementia)