Lee, Michelle V.

Abstract Objective The purpose of this study is to summarize the results of a survey distributed by the Society of Breast Imaging (SBI) to assess applicants’ experience with the 2018 and 2019 Breast Imaging Fellowship Match process. Methods In this institutional review board–exempt study, the SBI issued an anonymous survey to all matched applicants in an attempt to gauge their experience with the 2018 and 2019 Match process. Results The survey was sent to all 2018 and 2019 matched applicants and 105/236 (45%) responses were received. The majority (75%, 79/105) of respondents reported a positive experience with the Match, with at least a 4/5 rating, and only 3% (5/105) reported a rating below 3/5. There was some improvement in 2019, with 86% (24/28) of respondents reporting at least a 4/5 rating compared to 71% (55/77) in 2018. No respondent reported a score below a 3/5 rating in 2019. The most commonly cited issues with the Match were the timing of the Match process, the need for a universal application, and the burden of travel. Location and program reputation were the two most important factors contributing to the final rank order of programs. Conclusion The great majority of applicants felt that the Match created a positive experience. Planned areas of improvement include the implementation of a universal application, the transition to virtual interviews, and a condensed timeline. These measures are likely to increase applicant satisfaction and provide a fair and efficient experience for future breast radiologists.

Abstract Purpose: Cyclin-dependent kinase (CDK) 4/6 drives cell proliferation in estrogen receptor–positive (ER+) breast cancer. This single-arm phase II neoadjuvant trial (NeoPalAna) assessed the antiproliferative activity of the CDK4/6 inhibitor palbociclib in primary breast cancer as a prelude to adjuvant studies. Experimental Design: Eligible patients with clinical stage II/III ER+/HER2− breast cancer received anastrozole 1 mg daily for 4 weeks (cycle 0; with goserelin if premenopausal), followed by adding palbociclib (125 mg daily on days 1–21) on cycle 1 day 1 (C1D1) for four 28-day cycles unless C1D15 Ki67 > 10%, in which case patients went off study due to inadequate response. Anastrozole was continued until surgery, which occurred 3 to 5 weeks after palbociclib exposure. Later patients received additional 10 to 12 days of palbociclib (Cycle 5) immediately before surgery. Serial biopsies at baseline, C1D1, C1D15, and surgery were analyzed for Ki67, gene expression, and mutation profiles. The primary endpoint was complete cell cycle arrest (CCCA: central Ki67 ≤ 2.7%). Results: Fifty patients enrolled. The CCCA rate was significantly higher after adding palbociclib to anastrozole (C1D15 87% vs. C1D1 26%, P < 0.001). Palbociclib enhanced cell-cycle control over anastrozole monotherapy regardless of luminal subtype (A vs. B) and PIK3CA status with activity observed across a broad range of clinicopathologic and mutation profiles. Ki67 recovery at surgery following palbociclib washout was suppressed by cycle 5 palbociclib. Resistance was associated with nonluminal subtypes and persistent E2F-target gene expression. Conclusions: Palbociclib is an active antiproliferative agent for early-stage breast cancer resistant to anastrozole; however, prolonged administration may be necessary to maintain its effect. Clin Cancer Res; 23(15); 4055–65. ©2017 AACR.