Age

65–any

Sex

ALL

Healthy volunteers

Not accepted

Patients aged sixty-five or older with metastatic or unresectable gastric, biliary, and pancreatic cancer.
The patient must sign the informed consent form.
Estimated survival period of more than 3 months.
Conscious and able to communicate verbally or in writing, and willing to cooperate with invasive procedures.

Patients with cognitive impairment or unable to cooperate with the interventional procedures as determined by the clinical physician.
Patients receiving concurrent other anticancer treatments (radiation or surgery).
Patients with multiple types of cancer requiring simultaneous treatment.
Patients who have previously participated in this study during a prior chemotherapy regimen.

Effect of Geriatric Intervention in Frail Patients with Gastric, Biliary, and Pancreatic Cancer Receiving Palliative Chemotherapy