ORR

{
  "id": "MLC-T-ONC-006156",
  "term": "ORR",
  "field": "Oncology and biomedicine",
  "definition": "The percentage of people in a study or treatment group who have a partial response or complete response to the treatment within a certain period of time. A partial response is a decrease in the size of a tumor or in the amount of cancer in the body, and a complete response is the disappearance of all signs of cancer in the body. In a clinical trial, measuring the ORR is one way to see how well a new treatment works. Also called objective response rate.",
  "expansions": [
    "objective response rate"
  ],
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/orr/"
}