Idaho Highway Commissioner Battles Insurance for Keytruda Coverage in Endometrial Cancer Treatment
Ada County Highway District Commissioner Patricia Nilsson is facing a frustrating battle with her health insurance company as she prepares to begin chemotherapy for endometrial cancer. Her doctor recommends adding Keytruda to her treatment plan, but the insurance company has denied coverage, deeming the drug “not medically necessary.”
Diagnosis and Treatment Plan
Nilsson received a diagnosis of endometrial cancer in January after seeking medical attention for unusual bleeding. Following a total hysterectomy in February, testing revealed malignant cells in a lymph duct and indicated the cancer was mismatch repair (MMR) deficient and histologically aggressive – meaning it was likely to grow and spread rapidly. She was diagnosed with Stage 2C cancer.
Dr. Jerry Perez, a gynecologic oncologist at St. Luke’s, recommended six rounds of chemotherapy combined with Keytruda, citing recent research demonstrating a significant reduction in recurrence risk for MMR-deficient endometrial cancer. A 2024 study showed a reduction in recurrence from 42% without Keytruda to 31% with Keytruda.
Insurance Denial and Financial Burden
Despite the doctor’s recommendation and supporting research, Nilsson’s insurance company issued a “partial denial,” stating Keytruda was not medically necessary because her cancer was not classified as Stage 3 or 4. Nilsson questioned this decision, arguing that the denial ignores the specific research related to her cancer type and molecular analysis.
The delay caused by the appeal process is critical, as chemotherapy must begin within a specific timeframe following surgery. Nilsson is scheduled to start chemotherapy on Friday, March 21, 2026, but the question remains whether it will include Keytruda. If she chooses to proceed with Keytruda without insurance approval, she faces a potential out-of-pocket cost of $150,000.
A Systemic Issue
Nilsson expressed concern that insurance companies are prioritizing cost over patient care, even when potentially life-saving treatments are available. She emphasized the frustration of having access to advanced technology and drugs, only to have treatment decisions made by someone at the insurance company rather than her physician.
Scott McIntosh, opinion editor of the Idaho Statesman, highlighted Nilsson’s story as another example of a broken healthcare system.
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