Hello. With a stage IV pancreatic cancer, if the doctor has given a six month prognosis, your brother would qualify for Hospice care, and they will work with you regardless of ability to pay. You go through the doctor to order that. For Hospice care, they are concerned with keeping him comfortable, managing pain, but the goals are different. You stop working towards a cure of the disease, and work towards end-of-life care.
Here are some resources that may be helpful: