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MRD Watch

Thursday, November 12, 2026

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FDA

U.S. Food and Drug Administration approvals, labels, and draft guidance.

FDA approves adjuvant atezolizumab for ctDNA MRD-positive MIBC, with Signatera CDx

On May 15, 2026, the FDA approved atezolizumab and atezolizumab/hyaluronidase as adjuvant treatment for adults with muscle-invasive bladder cancer after cystectomy who have ctDNA molecular residual disease on an FDA-authorized test, and approved Signatera CDx to select those patients; in IMvigor011 median disease-free survival was 9.9 versus 4.8 months (HR 0.64) and median overall survival was 32.8 versus 21.1 months (HR 0.59).

U.S. FDA

FDA draft guidance describes bone-marrow MRD negativity plus complete response as an accelerated-approval endpoint in myeloma

On January 21, 2026, the FDA released draft guidance on using minimal residual disease and complete response in multiple myeloma to support accelerated approval, defining the MRD endpoint as bone-marrow negativity by flow cytometry or sequencing in patients who have achieved complete response or stringent complete response, and noting that the April 12, 2024 ODAC unanimously accepted MRD as an accelerated-approval endpoint.

Federal Register

FDA approves lutetium Lu 177 vipivotide tetraxetan plus an ARPI for PSMA-positive metastatic hormone-sensitive prostate cancer

On July 31, 2026, the FDA approved lutetium Lu 177 vipivotide tetraxetan with an androgen-receptor pathway inhibitor for PSMA-positive metastatic androgen-pathway-naive or -sensitive prostate cancer, with patients selected using Locametz or another approved PSMA PET product; in PSMAddition (1,144 patients) radiographic progression-free survival HR was 0.72 and median radiographic progression-free survival was not reached in either arm.

U.S. FDA

FDA approves capivasertib plus abiraterone for PTEN-deficient metastatic hormone-sensitive prostate cancer

On June 12, 2026, the FDA approved capivasertib with abiraterone and prednisone for PTEN-deficient metastatic androgen-pathway-naive or -sensitive prostate cancer, and approved the VENTANA PTEN (SP218) RxDx Assay, which calls PTEN deficiency when at least 90% of viable malignant cells have no specific cytoplasmic staining; in CAPItello-281 (1,012 patients) median radiographic progression-free survival was 33.2 versus 25.7 months (HR 0.81), and overall survival was immature.

U.S. FDA

FDA extends perioperative enfortumab vedotin plus pembrolizumab to all cystectomy-eligible MIBC

On July 10, 2026, the FDA extended perioperative pembrolizumab, or pembrolizumab and berahyaluronidase alfa-pmph, with enfortumab vedotin to adults with muscle-invasive bladder cancer who are candidates for cystectomy, including those eligible for cisplatin; in KEYNOTE-B15/EV-304 (808 patients) event-free survival HR was 0.53 and overall survival HR was 0.65 versus neoadjuvant gemcitabine and cisplatin.

U.S. FDA

FDA approves adjuvant belzutifan plus pembrolizumab for intermediate-high or high-risk clear-cell RCC

On June 12, 2026, the FDA approved belzutifan with pembrolizumab, or with pembrolizumab and berahyaluronidase alfa-pmph, as adjuvant treatment for adults with clear-cell renal cell carcinoma at intermediate-high or high risk of recurrence after nephrectomy, or after nephrectomy and resection of metastases; in LITESPARK-022 (1,841 patients) disease-free survival HR was 0.72 and median disease-free survival was not reached in either arm.

U.S. FDA

FDA approves perioperative enfortumab vedotin plus pembrolizumab for cisplatin-ineligible MIBC

On November 21, 2025, the FDA approved pembrolizumab, or pembrolizumab and berahyaluronidase alfa-pmph, with enfortumab vedotin as neoadjuvant treatment and adjuvant treatment after cystectomy for adults with muscle-invasive bladder cancer who are ineligible for cisplatin; in KEYNOTE-905/EV-303 (344 patients) event-free survival HR was 0.40 and overall survival HR was 0.50 versus surgery alone.

U.S. FDA