The management of metastatic renal cell carcinoma (mRCC) is evolving rapidly. On the basis of results from the CARMENA trial, cytoreductive nephrectomy is debated and the question of delayed surgery is of new interest for selected patients [1]. The SURTIME trial showed that patients did not have more surgical complications after prior treatment with sunitinib [2]. In the current era of immune checkpoint inhibitors (ICIs), the role and timing of nephrectomy for kidney residual disease for patients with a radiological complete response (CR) at metastatic sites are still unknown.
We evaluated the feasibility of delayed nephrectomy in 11 patients with metastatic renal cell carcinoma (mRCC) and complete response (CR) on metastatic sites following ICI.
In 81.8% (n=9) of the cases, surgeons experienced technical difficulties due to inflammatory infiltration. The 30-day postoperative complication rate was 54.6%, including 1 surgery-related death. A complete pathological response was observed in 2 cases. At 1 year, 73% of patients were free from progression and 54% free from systemic treatment.
In conclusion, if nephrectomy after ICI for mRCC can achieve CR in selected patients, this surgery should be performed in centers with extensive experience due to technical complexity.