When someone gets a new kidney, they need to take special medicines called anti-rejection drugs so their body doesn’t attack the new kidney. This study is testing if a drug called abatacept, given as a shot under the skin, can replace another drug called belatacept, which is given through a needle in the arm. Researchers want to see if abatacept is just as safe and if it works well for kidney transplant patients.

The study involves people who had their first kidney transplant and are already taking belatacept. Participants will switch to abatacept between 2 and 5 months after their transplant and continue until 12 months after the transplant. After 12 months, they will get medicine as directed by their doctor.

• Study duration: 12 months with abatacept.
• Participants will need to take weekly shots at home.
• Participants should be willing to follow study rules and visit the study center.