Usual Care

Head and neck cancer (HNC) patients undergoing concurrent chemoradiotherapy (CCRT) frequently experience pain, xerostomia, fatigue, sleep disturbance, and other treatment-related toxicities that impair quality of life and treatment adherence, with incomplete relief from current supportive care. This randomized, single-blind, sham-controlled trial evaluates whether foot reflexology (FR), transcutaneous auricular vagus nerve stimulation (ta-VNS), and auricular acupressure (AA) reduce pain, xerostomia, fatigue, sleep disturbance, and treatment-related symptoms in HNC patients receiving cisplatin-based CCRT, compared with usual care. Participants are randomized to a foot reflexology group, an auricular vagus nerve stimulation group (each with true and sham subgroups), or a usual-care control group, and are followed at baseline and weeks 1, 2, and 4.

The goal of this clinical trial is to investigate the effects of a perioperative multimodal rehabilitation program on the incidence of postoperative complications and perioperative clinical indexes including functional capacity, nutritional and psychological status in patients with gastric cancer undergoing neoadjuvant therapy. Besides the investigators also develop a smart phone based digital platform aiming to evaluate its effectiveness in improving patient adherence, compared with the conventional telephone supervision approach. The main questions it aims to answer are: * Can the perioperative multimodal rehabilitation program reduce postoperative complications in patients with gastric cancer undergoing neoadjuvant therapy? * Can the smart phone based digital platform improve patients' adherence compared to traditional telephone supervision? * Can the perioperative multimodal rehabilitation program improve the perioperative clinical indicators of patients with gastric cancer undergoing neoadjuvant therapy, including functional capacity, nutritional status and psychological condition? The investigators will compare the perioperative multimodal rehabilitation program with the standard treatment alone to determine whether this program has the effects mentioned above. Participants will follow the perioperative multimodal rehabilitation program from neoadjuvant therapy through to four weeks after discharge.

The goal of this study is to evaluate the feasibility of using information from wearable devices and self-reported symptoms to remotely monitor patients during immunotherapy. The main questions it aims to answer are: * Is the digital remote patient monitoring tool feasible and acceptable to patients? * Do the alerts and guidance improve symptom management, quality of life, and engagement with the care team during treatment? Participants will: * Complete a demographic questionnaire at the beginning of the study and quality-of-life and health questionnaires at the beginning, midpoint, and end of study. * As feasible: At the beginning and end of the study, complete an in-person physical function assessment measuring balance (Short Physical Performance Battery). If participant is randomly assigned to the intervention group, they will also: * Complete weekly symptom ratings via digital remote patient monitoring tool * Wear a Fitbit activity tracker for 90 days. * At the end of the study, complete a semi-structured interview to provide feedback on the study.

The PI and the research team developed the New York University (NYU) Electronic Patient Visit Assessment (ePVA) for head and neck cancer (HNC) as a patient-reported outcome measure (PRO) for the early detection of uncontrolled symptoms. The ePVA is digital patient-reported symptom monitoring system, providing actionable information at point-of-care that enables clinicians to provide real-time interventions. The study aims to advance the science of cancer care delivery by testing the effectiveness of the ePVA as a digital patient-reported monitoring system for patients with HNC in real-world settings and identify implementation strategies that optimize the effectiveness of the ePVA in diverse rural and urban settings. The study hypothesis is that participants assigned to the ePVA arm will have better swallowing, taste and smell, and social function than participants assigned to usual care arm at 4 weeks after completing radiation therapy.