PALO ALTO, Calif.–(BUSINESS WIRE)–Guardant Health, Inc. (Nasdaq: GH), a leading precision oncology company, announced today that Palmetto GBA, a Medicare administrative contractor for the Molecular Diagnostics Services program (MolDX), has conveyed coverage for the Guardant360 Response test. Guardant360 Response is the first blood-only test that enables doctors to track molecular response through changes in circulating tumor DNA (ctDNA) levels, to get an early indication of metastatic or advanced cancer patient response to immune checkpoint inhibitor therapy.
Following this decision, the Guardant360 Response test is now covered for fee-for-service Medicare patients in the U.S. with metastatic or inoperable solid tumors who are on an immune checkpoint inhibitor therapy. The coverage includes a Guardant360 CDx or LDT test before initiating therapy to establish a ctDNA baseline and a Guardant360 Response test 4 to 10 weeks after the therapy has been initiated to measure the change in ctDNA level.