Study Overview: This study tests a plan called the PAGODA algorithm to see if it can help prevent unexpected delays in chemotherapy for people with cancer in the stomach and intestines. Chemotherapy is a treatment that uses strong medicine to fight cancer cells.

Key Medical Terms: FOLFOX is a type of chemotherapy that combines three drugs: 5-FU, oxaliplatin, and leucovorin. Neutropenia is when the body has too few white blood cells, making it hard to fight infections.

• The study lasts about 14 weeks, as each chemotherapy cycle is 14 days long, and patients go through multiple cycles.
• Participants are split into two groups: one follows usual care, and the other uses the PAGODA algorithm for dose changes.
• Risks include typical chemotherapy side effects, like nausea or infection risk due to low white blood cells.

This study involves random selection into groups to see which method works best in preventing treatment delays and requires regular hospital visits for check-ups and treatments. Participants need to be of a certain health level and have specific cancer types to join. They will not receive direct compensation for participating.