Balancing Midurethral Sling vs OnabotulinumtoxinA for Mixed Urinary Incontinence

Mixed urinary incontinence presents a clinical conundrum. Patients with mixed urinary incontinence report symptoms of both stress incontinence (loss of urine with exertion) and urge incontinence (loss of urine with urgency). Mixed urinary incontinence is a combination of the two that affects 37% of women older than age 65 years. The personal and societal costs of incontinence are significant. In women with symptoms of severe urinary incontinence, the cost of supplies, laundry, and dry cleaning range from $900 to $4000 annually. By 80 years of age, 20% of women will undergo surgery for stress or mixed urinary incontinence. Physical and behavioral therapy improves both incontinence types, and medications are standard treatment for urgency urinary incontinence. When conservative therapies fail, conventional guidance has been to treat the urgency prior to the stress component of mixed incontinence, because anti-incontinence surgical procedures can worsen urgency incontinence, and many urgency treatments are medical rather than surgical. Another strategy has been to treat whichever symptom is dominant.

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Error in Key Points and Table 1

In the Original Investigation titled “Stereotactic Body Radiotherapy vs Sorafenib Alone in Hepatocellular Carcinoma: The NRG Oncology/RTOG 1112 Phase 3 Randomized Clinical Trial,” published online December 19, 2024, and in the February 2025 issue, there were errors in the Key Points and Table 1. In the Key Points Findings section, the percentage of patients with macrovascular invasion was updated to 74%. In Table 1, the values in the HCC volume/liver volume row were updated to percentages. This article was corrected online.

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Overall Survival in the CAIRO5 Clinical Trial—Reply

In Reply Ballhausen and Modest express concerns about our conclusions on the primary end point, progression-free survival (PFS), and overall survival (OS), a secondary end point of the CAIRO5 randomized clinical trial. PFS has been considered a valid surrogate end point for OS based on data from 22 metastatic colorectal cancer (mCRC) trials. Although this result was irrespective of the use of biologic agents, they mention a lack of this correlation in more recent trials comparing anti–vascular endothelial growth factor vs anti–epidermal growth factor receptor antibodies added to chemotherapy. We clearly stated that OS in the CAIRO5 trial was a secondary end point and that its analysis was underpowered. However, in both comparisons, the OS difference was marginal, with survival curves crossing several times in the bevacizumab/panitumumab comparison. Therefore, we consider it unlikely that additional events would reveal clinically meaningful OS differences. As to the comparison of folinic acid, 5-fluorouracil, oxaliplatin and irinotecan (FOLFOXIRI) vs folinic acid (leucovorin), fluorouracil, and oxaliplatin (FOLFOX)/folinic acid (leucovorin), fluorouracil, and irinotecan (FOLFIRI), both with bevacizumab, we have previously questioned the clinical significance of the observed statistically significant 1.6-month benefit in median PFS in favor of FOLFOXIRI. We suggested that FOLFOXIRI would only be preferred when the observed increase in complete local treatments would translate into a benefit in OS, which was not the case. Ballhausen and Modest suggest that PFS/OS events may be influenced by local liver treatment rather than failure of systemic treatment. However, conversion to local liver treatment may also be affected by the systemic treatment regimen. Because the ability to undergo local treatment cannot be predicted before initiating systemic treatment, this remains an inherent aspect of studies in patients with initially unresectable liver metastases.

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