Dear Spring,
Sorry you are dealing with a complicated situation.
In my view, in a perfect world (and I know we do not live in one) every woman with TNBC would see a Breast Medical Oncologist (BMO) prior to surgery and that BMO would be at a NCCN or NCI facility.
I also personally suggest second opinions even if you have seen a top physician. That would include getting a second opinion on your pathology report to make sure you are TN.
I think it is essential that you are advised by TNBC savvy physicians who also are knowledgeable, or have colleagues, who are experienced in what can and cannot be prescribed for a woman with a woman who has had a kidney transplant and is on immunosuppresants. Please go to a major cancer center to get a second opinion.
If you can let us know what city you live in maybe someone can suggest a center..If you are not comfortable doing that here is a link to the NCCN centers.
warmly,
Steve