Baduanjin for Quality of Life in Pancreatic Cancer Chemotherapy

Background Pancreatic cancer is a highly aggressive malignancy with a 5-year survival rate below 12%. More than 80% of patients present with consumptive symptoms at diagnosis, including weight loss and fatigue. The NALIRIFOX regimen has emerged as a first-line chemotherapy for advanced pancreatic cancer, extending median overall survival from 8.9 to 12.9 months. However, the incidence of grade ≥3 adverse events reaches 73.1%, including neutropenia (46.2%), nausea (73.1%), fatigue (65.4%), and diarrhea (55.1%). These toxicities persist throughout the chemotherapy course and severely impair patients' quality of life and treatment adherence.

Pain and psychological stress may promote pancreatic cancer progression through sympathetic-exosome pathways, establishing a "somatic-psychological" vicious cycle. Therefore, safe and effective non-pharmacological interventions are urgently needed to alleviate chemotherapy-related impairments. Regular exercise can enhance anti-tumor immune activity and improve physical and psychological symptoms; however, over 85% of pancreatic cancer patients present with cachexia at diagnosis, limiting their tolerance to conventional-intensity exercise regimens.

A 2025 network meta-analysis incorporating 121 studies and 11,072 cancer patients demonstrated that Baduanjin had the largest effect size for improving quality of life (SMD = 3.03). Baduanjin is characterized by gentle movements and controllable intensity, can be performed either standing or seated, and is well-suited to the physical condition of pancreatic cancer patients. Nevertheless, no study has specifically investigated Baduanjin in this population, and existing research is limited by small sample sizes, single-center designs, heterogeneous intervention protocols, and narrow outcome assessments.

Study Objectives This study aims to: (1) investigate the effects of Baduanjin on quality of life and psychological symptoms in pancreatic cancer patients during chemotherapy; (2) evaluate its impact on cardiopulmonary function, immune status, and treatment tolerance.

Study Design This is a multicenter, prospective, parallel-group randomized controlled trial with a 1:1 allocation ratio to the intervention or control group.

Participants Inclusion criteria: age ≥18 years; histologically confirmed pancreatic cancer; first-line neoadjuvant/adjuvant chemotherapy with the NALIRIFOX regimen; ECOG PS ≤2; life expectancy >3 months; and voluntary informed consent. Exclusion criteria are detailed in the study protocol. A total of 96 participants (48 per group) are planned for enrollment.

Intervention

The intervention group receives a 12-week phased Baduanjin training program guided by the FITT principle, with dynamic adjustments according to the temporal distribution of adverse events across the 14-day chemotherapy cycle:

Days 1-3 (acute phase): seated Baduanjin, 10 minutes/session, once daily, RPE Borg 6-8; Days 4-10 (early recovery): if severe myelosuppression, diarrhea, or fatigue occurs, Baduanjin is suspended and replaced by bedside deep breathing exercises and ankle pumping; Days 11-12 (mid-recovery): seated Baduanjin, 10 minutes/session, once daily, RPE Borg 9-11; Days 13-14 (late recovery): standing Baduanjin, 10 minutes/session, once daily, RPE Borg 9-11; During hospitalization, one-on-one bedside instruction is provided by the responsible nurse. At home, exercises are supervised via video, with daily check-in recording. The program adheres to the RAMP principles: low-intensity ramp-up, symptom-guided assessment, multi-stage implementation, safety-first protocol, and quantifiable progress tracking.

The control group receives routine care at each center (symptom monitoring, pain management, psychological support, nutritional counseling, etc.) without additional exercise intervention.

Outcome Measures Primary outcome: Quality of life assessed by the EORTC QLQ-C30 at baseline (T0), week 4 (T1), week 8 (T2), and week 12 (T3).

Secondary outcomes: Anxiety and depression (HADS-A and HADS-D), pulmonary function (FEV1, FVC), and exercise tolerance (6-minute walk test), assessed at T0-T3.

Exploratory outcomes: Biomarkers including NLR, MLR, albumin, total protein, hemoglobin, and glucose, assessed prior to each chemotherapy cycle.

Treatment tolerance: Number of completed chemotherapy cycles and body weight change.

Adherence: Daily check-in rate, exercise log completion rate, and wristband data.

Safety: Adverse events (CTCAE v5.0), recorded daily. Statistical Analysis Primary analyses follow the intention-to-treat principle. Continuous variables are compared using independent t-tests or Mann-Whitney U tests; categorical variables using χ² or Fisher's exact tests. Primary and secondary outcomes are analyzed using repeated-measures ANOVA to assess between-group differences, time effects, and interaction effects. Missing data are handled by multiple imputation.

Ethics and Registration This study has been approved by the Medical Ethics Committee of Tianjin Medical University Cancer Institute \& Hospital (Approval No.: bc20262678). All participants will provide written informed consent.