Anti-KRAS G12D mTCR PBL(NCI)

Background:
A new cancer therapy takes white blood cells from a person, grows them in a lab, genetically changes them, then gives them back to the person. Researchers think this may help attack tumors in people with certain cancers. It is called gene transfer using anti-KRAS G12D mTCR cells.
Objective:
To see if anti-KRAS G12D mTCR cells are safe and cause tumors to shrink.
Eligibility:
Adults ages 18-72 who have cancer with a molecule on the tumors that can be recognized by the study cells
Design:
Participants will be screened with medical history, physical exam, scans, photography, and heart, lung, and lab tests.
An intravenous (IV) catheter will be placed in a large vein in the chest.
Participants will have leukapheresis. Blood will be removed through a needle in an arm. A machine will divide the blood and collect white blood cells. The rest of the blood will be returned to the participant through a needle in the other arm.
A few weeks later, participants will have a hospital stay. They will:
* Get 2 chemotherapy medicines by IV over 5 days.
* Get the changed cells through the catheter. Get up to 9 doses of a medicine to help the cells. They may get a shot to stimulate blood cells.
* Recover in the hospital for up to 3 weeks. They will provide blood samples.
Participants will take an antibiotic for at least 6 months.
Participants will have several follow-up visits over 2 years. They will repeat most of the screening tests and may have leukapheresis.
Participants blood will be collected for several years.