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- Armuand, Gabriela, et al.
(författare)
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Reproductive Patterns Among Childhood and Adolescent Cancer Survivors in Sweden : A Population-Based Matched-Cohort Study
- 2017
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Ingår i: Journal of Clinical Oncology. - : AMER SOC CLINICAL ONCOLOGY. - 0732-183X .- 1527-7755. ; 35:14, s. 1577-1583
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To compare the probability of a first live birth, age at time of birth, and time between diagnosis/referent date and birth between childhood and adolescent cancer survivors and an age-matched comparison group.Materials and Methods: A total of 1,206 survivors was included in the study, together with 2,412 age-matched individuals from the general population. A Cox proportional hazards model was used to investigate first live birth after diagnosis/referent date. Data were stratified by sex, age at diagnosis, and diagnostic era (ie, diagnosis before 1988 v in 1988 or later).Results: Overall, the probability of having a first live birth (hazard ratio [HR]) was significantly lower; men had lower HRs than women (HR, 0.65 v 0.79). There were no significant differences in the probability of having a first live birth among women diagnosed during adolescence (HR, 0.89), but the HR was lower among women with childhood cancers (HR, 0.47). Among male survivors, the situation was the opposite; men diagnosed during adolescence had lower HRs than survivors of childhood cancer (HR, 0.56 v 0.70). Examination of the data from the two diagnostic eras (before 1988 and 1988 or later) shows that the HR increased among female survivors after 1988 (HR, 0.71 v 0.90) and decreased among male survivors (HR, 0.72 v 0.59). A shorter time had elapsed between diagnosis/referent date and the birth of a first child among both male and female survivors compared with controls. In addition, female survivors were younger at time of birth.Conclusion: The study demonstrates reduced probability of having a first live birth among cancer survivors diagnosed during childhood or adolescence; men were particularly vulnerable.
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- Ekholm, Maria, et al.
(författare)
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Two Years of Adjuvant Tamoxifen Provides a Survival Benefit Compared With No Systemic Treatment in Premenopausal Patients With Primary Breast Cancer: Long-Term Follow-Up (> 25 years) of the Phase III SBII:2pre Trial
- 2016
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Ingår i: Journal of Clinical Oncology. - : AMER SOC CLINICAL ONCOLOGY. - 0732-183X .- 1527-7755. ; 34:19, s. 2232-
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The aim of this study was to evaluate the long-term effect of 2 years of adjuvant tamoxifen compared with no systemic treatment (control) in premenopausal patients with breast cancer over different time periods through long-term (amp;gt; 25 years) follow-up. Patients and Methods Premenopausal patients with primary breast cancer (N = 564) were randomly assigned to 2 years of tamoxifen (n = 276) or no systemic treatment (n = 288). Data regarding date and cause of death were obtained from the Swedish Cause of Death Register. End points were cumulative mortality (CM) and cumulative breast cancer-related mortality (CBCM). The median follow-up for the 250 patients still alive in April 2014 was 26.3 years (range, 22.7 to 29.7 years). Results In patients with estrogen receptor-positive tumors (n = 362), tamoxifen was associated with a marginal reduction in CM (hazard ratio [HR], 0.77; 95% CI, 0.58 to 1.03; P = .075) and a significant reduction in CBCM (HR, 0.73; 95% CI, 0.53 to 0.99; P = .046). The effect seemed to vary over time (CM years 0 to 5: HR, 1.05; 95% CI, 0.64 to 1.73; years amp;gt;5 to 15: HR, 0.58; 95% CI, 0.37 to 0.91; and after 15 years: HR, 0.82; 95% CI, 0.48 to 1.42; CBCM years 0 to 5: HR, 1.09; 95% CI, 0.65 to 1.82; years amp;gt;5 to 15: HR, 0.53; 95% CI, 0.33 to 0.86; and after 15 years: HR, 0.72; 95% CI, 0.36 to 1.44). Conclusion Two years of adjuvant tamoxifen resulted in a long-term survival benefit in premenopausal patients with estrogen receptor-positive primary breast cancer. (C) 2016 by American Society of Clinical Oncology. Creative Commons Attribution Non-Commercial No Derivatives 4.0 License: https://creativecommons.org/licenses/by-nc-nd/4.0/
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- Zardavas, Dimitrios, et al.
(författare)
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Tumor PIK3CA Genotype and Prognosis in Early-Stage Breast Cancer: A Pooled Analysis of Individual Patient Data
- 2018
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Ingår i: Journal of Clinical Oncology. - : AMER SOC CLINICAL ONCOLOGY. - 0732-183X .- 1527-7755. ; 36:10, s. 981-
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Tidskriftsartikel (refereegranskat)abstract
- PurposePhosphatidylinositol-4, 5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) mutations are frequently observed in primary breast cancer. We evaluated their prognostic relevance by performing a pooled analysis of individual patient data.Patients and MethodsAssociations between PIK3CA status and clinicopathologic characteristics were tested by applying Cox regression models adjusted for age, tumor size, nodes, grade, estrogen receptor (ER) status, human epidermal growth factor receptor 2 (HER2) status, treatment, and study. Invasive disease-free survival (IDFS) was the primary end point; distant disease-free survival (DDFS) and overall survival (OS) were also assessed, overall and by breast cancer subtypes.ResultsData from 10,319 patients from 19 studies were included (median OS follow-up, 6.9 years); 1,787 patients (17%) received chemotherapy, 4,036 (39%) received endocrine monotherapy, 3,583 (35%) received both, and 913 (9%) received none or their treatment was unknown. PIK3CA mutations occurred in 32% of patients, with significant associations with ER positivity, increasing age, lower grade, and smaller size (all P amp;lt; .001). Prevalence of PIK3CA mutations was 18%, 22%, and 37% in the ER-negative/HER2-negative, HER2-positive, and ER-positive/HER2-negative subtypes, respectively. In univariable analysis, PIK3CA mutations were associated with better IDFS (HR, 0.77; 95% CI, 0.71 to 0.84; P amp;lt; .001), with evidence for a stronger effect in the first years of follow-up (0 to 5 years: HR, 0.73; 95% CI, 0.66 to 0.81; P amp;lt; .001; 5 to 10 years: HR, 0.82; 95% CI, 0.68 to 0.99; P = .037); amp;gt; 10 years: (HR, 1.15; 95% CI, 0.84 to 1.58; P = .38; P heterogeneity = .02). In multivariable analysis, PIK3CA genotype remained significant for improved IDFS (P = .043), but not for the DDFS and OS end points.ConclusionIn this large pooled analysis, PIK3CA mutations were significantly associated with a better IDFS, DDFS, and OS, but had a lesser prognostic effect after adjustment for other prognostic factors. (C) 2018 by American Society of Clinical Oncology
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