Do cancer curvivors and metavivors have distinct needs for stress management intervention? Retrospective analysis of a mind-body survivorship program.

PURPOSE: Cancer "curvivors" (completed initial curative intent treatment with surgery, radiation, chemotherapy, and/or other novel therapies) and "metavivors" (living with metastatic or chronic, incurable cancer) experience unique stressors, but it remains unknown whether these differences impact benefits from mind-body interventions. This study explored differences between curvivors and metavivors in distress (depression, anxiety, worry) and resiliency changes over the course of an 8-week group program, based in mind-body stress reduction, cognitive-behavioral therapy (CBT), and positive psychology. METHODS: From 2017-2021, 192 cancer survivors (83% curvivors; 17% metavivors) completed optional online surveys of resiliency (CES) and distress (PHQ-8, GAD-7, PSWQ-3) pre- and post- participation in an established clinical program. Mixed effect regression models explored curvivor-metavivor differences at baseline and in pre-post change. RESULTS: Compared to curvivors, metavivors began the program with significantly more resilient health behaviors (B = 0.99, 95% CI[0.12, 1.86], p = .03) and less depression (B = -2.42, 95%CI[-4.73, -0.12], p = .04), with no other significant differences. Curvivors experienced significantly greater reductions in depression (curvivor-metavivor difference in strength of change = 2.12, 95% CI [0.39, 3.83], p = .02) over the course of the program, with no other significant differences. Neither virtual delivery modality nor proportion of sessions attended significantly moderated strength of resiliency or distress change. CONCLUSION: Metavivors entering this mind-body program had relatively higher well-being than did curvivors, and both groups experienced statistically comparable change in all domains other than depression. Resiliency programming may thus benefit a variety of cancer survivors, including those living with incurable cancer.

Testing psychosocial mediators of a mind-body resiliency intervention for cancer survivors.

PURPOSE: Group-based mind-body interventions such as the Stress Management and Resiliency Training-Relaxation Response Resiliency Program (SMART-3RP) hold promise for enhancing resiliency among cancer survivors. Mechanisms underlying improvements in psychological outcomes are theoretically established but remain unexamined empirically. METHODS: Adult cancer survivors (n = 105) participating in the SMART-3RP completed surveys of resiliency and five hypothesized mediators: coping (ability to relax physical tension and assertive social support-seeking), mindfulness, positive affect, and worry. Pre-post intervention changes were assessed using repeated-measures t-tests. Bivariate correlations between change scores and a more conservative within-person parallel mediation model tested covariance between resiliency and mediators. RESULTS: Participants experienced moderate to large improvements in all patient-reported outcomes (ds = 1.01-0.46). Increased resiliency was significantly associated with increases in mindfulness, positive affect, and assertive social support-seeking (rs = 0.36-0.50); smaller associations with increased relaxation and decreased worry were not significant. Mindfulness and positive affect explained the largest proportion of variance in resiliency increase in the full multivariate model. CONCLUSIONS: Cancer survivors completing the SMART-3RP had increased resiliency, which was associated with improvements in mindfulness, positive affect, and the ability to assertively seek social support. Enhancing mindfulness and positive affect were critical components for enhancing resiliency. Implications for resiliency interventions with cancer survivors are discussed.

Selection of Optimal Adjuvant Chemotherapy and Targeted Therapy for Early Breast Cancer: ASCO Guideline Update.

PURPOSE: The aim of this work is to update key recommendations of the ASCO guideline adaptation of the Cancer Care Ontario guideline on the selection of optimal adjuvant chemotherapy regimens for early breast cancer and adjuvant targeted therapy for breast cancer. METHODS: An Expert Panel conducted a targeted systematic literature review guided by a signals approach to identify new, potentially practice-changing data that might translate into revised guideline recommendations. RESULTS: The Expert Panel reviewed abstracts from the literature review and identified one article for inclusion that reported results of the phase III, open-label KATHERINE trial. In the KATHERINE trial, patients with stage I to III human epidermal growth factor receptor 2 (HER2)-positive breast cancer with residual invasive disease in the breast or axilla after completing neoadjuvant chemotherapy and HER2-targeted therapy were allocated to adjuvant trastuzumab emtansine (T-DM1; n = 743) or to trastuzumab (n = 743). Invasive disease-free survival was significantly higher in the T-DM1 group than in the trastuzumab arm (hazard ratio, 0.50; 95% CI, 0.39 to 0.64; P < .001), and risk of distant recurrence was lower in patients who received T-DM1 than in patients who received trastuzumab (hazard ratio, 0.60; 95% CI, 0.45 to 0.79). Grade 3 or higher adverse events occurred in 190 patients (25.7%) who received T-DM1 and in 111 patients (15.4%) who received trastuzumab. RECOMMENDATIONS: Patients with HER2-positive breast cancer with pathologic invasive residual disease at surgery after standard preoperative chemotherapy and HER2-targeted therapy should be offered 14 cycles of adjuvant T-DM1, unless there is disease recurrence or unmanageable toxicity. Clinicians may offer any of the available and approved formulations of trastuzumab, including trastuzumab, trastuzumab and hyaluronidase-oysk, and available biosimilars.Additional information can be found at www.asco.org/breast-cancer-guidelines.

Reflections on the Boston Marathon from a Breast Cancer Oncologist (or, Why I Just Don't Quit).

Preparing for a big race like the Boston Marathon pales in comparison to what a cancer patient faces, but there are similarities when it comes to always showing up and never giving up, as this narrative describes.

Isocitrate dehydrogenase 1 (IDH1) mutation in breast adenocarcinoma is associated with elevated levels of serum and urine 2-hydroxyglutarate.

Mutations in the IDH1 and IDH2 (isocitrate dehydrogenase) genes have been discovered across a range of solid-organ and hematologic malignancies, including acute myeloid leukemia, glioma, chondrosarcoma, and cholangiocarcinoma. An intriguing aspect of IDH-mutant tumors is the aberrant production and accumulation of the oncometabolite 2-hydroxyglutarate (2-HG), which may play a pivotal oncogenic role in these malignancies. We describe the first reported case of an IDH1 p.R132L mutation in a patient with hormone receptor-positive (HR+) breast adenocarcinoma. This patient was initially treated for locally advanced disease, but then suffered a relapse and metastasis, at which point an IDH1-R132 mutation was discovered in an affected lymph node. The mutation was subsequently found in the primary tumor tissue and all metastatic sites, but not in an uninvolved lymph node. In addition, the patient's serum and urine displayed marked elevations in the concentration of 2-HG, significantly higher than that measured in six other patients with metastatic HR+ breast carcinoma whose tumors were found to harbor wild-type IDH1. In summary, IDH1 mutations may impact a rare subgroup of patients with breast adenocarcinoma. This may suggest future avenues for disease monitoring through noninvasive measurement of 2-HG, as well as for the development and study of targeted therapies against the aberrant IDH1 enzyme.

Estrogen receptor positive breast cancers in BRCA1 mutation carriers: clinical risk factors and pathologic features.

INTRODUCTION: Most breast cancers that occur in women with germline BRCA1 mutations are estrogen receptor-negative (ER-) and also typically lack expression of progesterone receptor (PR) and HER2 overexpression. We undertook a study to assess the clinical factors that predict for an estrogen receptor positive (ER+) breast cancer in BRCA1 mutation carriers and to characterize the pathologic features of these tumors. METHODS: Clinical characteristics of BRCA1 carriers with 58 ER+ and 114 ER- first invasive breast cancers were compared. Pathologic features of BRCA1 ER+ cancers were compared to those of BRCA1 ER- cancers and to age-matched ER+ sporadic cancers. RESULTS: BRCA1 carriers aged > or = 50 at diagnosis of first invasive breast cancer were more likely to have an ER+ cancer compared to those aged < 50 (57% vs 29%, P = 0.005). ER+ BRCA1 cancers were less likely than ER- BRCA1 cancers to have "BRCA-associated" features such as high mitotic activity, geographic necrosis/fibrotic focus, and pushing margins (RR 0.06, 0.22, 0.24; P < 0.001, 0.02, 0.03 respectively). When compared to sporadic ER+ cancers, ER+ BRCA1 cancers were more often of invasive ductal type (RR 2.4, P = 0.03), with a high mitotic rate (RR 5.0, P = 0.006) and absent or mild lymphocytic infiltrate (RR 10.2, P = 0.04). CONCLUSIONS: BRCA1 carriers who are older at first breast cancer diagnosis are more likely to have ER+ tumors than younger BRCA1 carriers. These ER+ cancers appear pathologically "intermediate" between ER- BRCA1 cancers and ER+ sporadic breast cancers raising the possibility that either some ER+ BRCA1 cancers are incidental or that there is a unique mechanism by which these cancers develop.