Adjuvant Trastuzumab Emtansine Versus Paclitaxel and Trastuzumab in Stage I HER2-Positive Breast Cancer: The ATEMPT Trial

This ASO perspective reviews the findings of a randomized, phase II clinical trial evaluating adjuvant trastuzumab emtansine (T-DM1) compared with paclitaxel and trastuzumab (TH) in stage I human epidermal growth factor receptor 2-positive breast cancer, as reported recently by the ATEMPT trial investigators. Patients treated with T-DM1 had better disease-free survival but did not have fewer treatment toxicities. The T-DM1-treated group had higher rates of treatment discontinuations, therefore long-term follow-up will be required to evaluate survival differences between T-DM1 and TH.

Perioperative genetic testing and time to surgery in patients with breast cancer

BACKGROUND

Time to treatment has been identified as a quality metric, with longer time to treatment associated with poorer outcomes. Genetic evaluation is an integral part of treatment counseling for patients with breast cancer. With expanding indications for genetic testing and consideration of expansion of genetic testing to all patients with a personal history of breast cancer, this study aims to evaluate the effect of genetic evaluation on the time interval from initial surgical visit to surgery.

METHODS

A retrospective review of patients undergoing upfront surgery for stage 0-3 breast cancer from June 2022 to December 2022. Patient demographics, treatment characteristics, National Comprehensive Cancer Network criteria for genetic testing, and results were obtained.

RESULTS

The study included 492 patients (489 females). Eighty-one (16.2%) were ≤50 years of age at diagnosis. In total, 281 patients (57.1%) met National Comprehensive Cancer Network criteria for genetic testing and 199 consulted with a genetic counselor (72.4%). Seventy-six patients (27.6%) not meeting National Comprehensive Cancer Network criteria pursued genetic counseling. In total, 218 patients (79.3%) referred for genetic counseling completed testing. Mean turnaround time to genetic testing result was 11 days (range, 6-66 days). Twenty-six patients (11.9%) had a pathogenic or likely pathogenic variant. Twenty-four of these patients met National Comprehensive Cancer Network testing criteria (92.3%) and 2 did not (7.7%). The time to treatment for patients undergoing genetic testing was 33 vs 34 days in those without testing (P = .45). Three patients (11.5%) with pathogenic or likely pathogenic variants altered their initial surgical plan due to their genetic testing results. Seven patients with pathogenic or likely pathogenic variant results returning postoperatively did not undergo additional surgery.

CONCLUSION

Hereditary breast cancer evaluation and genetic testing did not appear to delay time to treatment for patients with breast cancer in our study cohort.

Feasibility and Outcomes of Opportunistic Bilateral Salpingectomy in Patients with Traditional Relative Contraindications to Vaginal Hysterectomy

STUDY OBJECTIVE

To compare the feasibility of opportunistic bilateral salpingectomy (OBS) at the time of vaginal hysterectomy (VH) for benign disease in patients with and without relative contraindications (RCs) to the vaginal approach and to evaluate the factors that contribute to the inability to perform OBS.

DESIGN

Retrospective chart review.

SETTING

Tertiary medical center.

PATIENTS

Women undergoing hysterectomy for benign indications between November 2014 and October 2017 who were consented for either VH with or without removal of tube(s) and/or bilateral salpingectomy.

INTERVENTIONS

RCs to the vaginal approach are defined as lack of prolapse (cervix high, cervix not visualized, cervix tucked underneath pubis, or minimal descent), enlarged uterus (≥250 g or a size of a ≥12-week uterus), nulliparity, obesity (body mass index ≥30 kg/m²), previous cesarean section (CS), known adhesions, and known adnexal pathologic condition.

MEASUREMENTS AND MAIN RESULTS

A total of 258 patients underwent VH and attempted to undergo OBS within the study period; of these, 112 patients (43.4%) had no RC, and 146 patients (56.6%) had ≥1 RCs. Overall, successful salpingectomy was performed in 86.8% of patients. There was no significant difference in the rate of success in patients without or with ≥1 RCs (84.9% vs 89%, p = .15). Salpingectomy was unsuccessful in 13.2% of patients (n = 34). In a multivariable logistic regression analysis, the odds of unsuccessful OBS were 3.83 times higher in patients without prolapse (confidence interval [CI], 0.99-14.76; p = .051), 2.71 times higher in patients with obesity (CI, 1.23-5.94; p = .013), and 3.07 times higher in patients with previous CS (CI, 1.17-8.08; p = .023) as compared to patients without any relative contraindications. An enlarged uterus was associated with successful salpingectomy (odds ratio, 0.28; 95% CI, 0.08-0.94; p = .039) compared with a normal-sized uterus. When excluding enlarged uterus, patients with 2 to 3 RCs had 11.24 and 6.8 higher odds of an unsuccessful OBS than patients with no (CI, 3.73-33.87; p <.001) and 1 RC (CI, 2.36-19.63; p <.001), respectively. There were no differences in postoperative stay or rates of readmission among patients with or without successful salpingectomy at the time of VH.

CONCLUSION

OBS is associated with a high overall rate of success in patients with and without traditional RCs to VH. Lack of prolapse, obesity, and previous CS were associated with failed attempt at salpingectomy. Patients with ≥2 RCs to VH should be counseled about the high likelihood of failed salpingectomy.