Complete resection is key
Among patients who underwent primary debulking surgery, progression-free survival persisted for a median of 23 months among patients with full resection, 19 months in patients with a single site with minimal residual disease, 13 months among those with multiple sites of residual disease, and 10 months in patients with more than 1 cm of residual tumor. Median overall survival in these four subgroups was not yet reached, 64 months, 50 months, and 49 months, respectively.
Among patients who received neoadjuvant chemotherapy and then underwent interval debulking surgery, median durations of progression-free survival were 14 months, 12 months, 10 months, and 6 months, respectively. Median overall survival rates were 58 months, 37 months, 26 months, and 33 months, respectively. Within each of these four analyses, the differences in both survival and progression-free survival across the four subgroups was statistically significant, with a P less than .001 for each analysis.
In multivariate analyses, among patients who underwent primary debulking surgery, the significant linkages with worsening progression-free and overall survival were age, cancer stage, and amount and site number of residual disease. Among patients who received neoadjuvant chemotherapy followed by interval debulking residual disease diameter and site number of residual tumor was the only significant determinant for both progression-free and overall survival, Dr. Manning-Geist reported.
Dr. Manning-Geist had no disclosures.
SOURCE: Manning-Geist B et al. SGO 2018, Abstract 43.