Your doctor can also request a ‘peer to peer’ review with the regional medical director of your insurance company.
Also they can and should submit any supporting documentation that the drug is helpful in pancreatic / gallbladder / kidney or liver cancer. Keep pestering the doctor’s office to get in contact with your insurance company.
The reason they most often deny is because of the huge expense of these types of drugs. You can also appeal the denial yourself, however it’s best if your doctor’s office does the appeal and if necessary a peer to peer review.
It can be done and most often it’s possible to get the drug approved. Hang in there! Keep us posted.
Margaret