Absolute annual incidences of first events of venous thromboembolism and arterial vascular events in individuals with elevated FVIII: c

Elevated levels of factor VIII:c (elevated FVIII:c) are associated with an increased risk for venous thromboembolism (VTE) and arterial vascular events, and are at least in part determined genetically. We prospectively followed 192 asymptomatic individuals with elevated FVIII:c (> 150%) and 340 with normal levels for an average duration of 31 months (range 7 to 56 months) to investigate the risk of VTE and arterial vascular events. Participants were first degree relatives of consecutive patients with elevated FVIII:c and VTE or arterial vascular events before the age of 50 years. The incidences ofVTE were 1.25% (0.46-2.73) per year in the subjects with elevated FVIII:c, versus 0.23% (0.03-0.82) in those with normal levels (OR 5.5 [1.1-27.3]).The annual incidences of arterial vascular events were 1.04% (0.34-2.42) and 0.23% (0.03-0.82) in relatives with and without elevated levels of FVIII:c, respectively (OR:4.5 [0.9-23.5]). After adjustment for age, smoking, known diabetes mellitus, hyperlipidemia, and hypertension, the odds ratio for any event was 3.7 (1.1-13.1). In conclusion, asymptomatic individuals with elevated FVIII:c levels and a positive family history of VTE or arterial vascular events before the age of 50 appear to have a high annual incidence of first VTE and arterial vascular events. Elevated FVIII:c may be a common risk factor for both clinical entities

The risk of venous and arterial thrombosis in hyperhomocysteinaemia is low and mainly depends on concomitant thromblophilic defects

As homocysteine-lowering treatment has not reduced the risk of recurrent thrombosis in recent clinical trials,we hypothesized that mild hyperhomocysteinaemia is an epiphenomenon or associated with a low absolute risk of thrombosis. In this retrospective study, we enrolled 478 evaluable first-degree relatives of consecutive patients with venous thrombosis or premature atherosclerosis, and hyperhomocysteinemia. Absolute risks of thrombosis and effects of concomitant thrombophilic defects were compared. Relative risks were adjusted for clustering in families, age, sex, and atherosclerotic risk factors, where appropriate. Annual incidence of venous thrombosis was 0.16% (95% confidence interval [CI], 0.08-0.30) in hyperhomocysteinemic relatives versus 0.11% (Cl, 0.05-0.20) in normohomocystei-nemic relatives; adjusted relative risk 1.6 (Cl, 0.6-4.5). Annual incidences of arterial thrombosis were 0.34% (Cl, 0.21-0.52) and 0.24% (Cl, 0.15-0.37) in hyperhomocysteinemic and normohomocysteinernic relatives, respectively; adjusted relative risk 1.5 (Cl, 0.6-3.5). Concomitance of multiple thrombophilic risk factors increased the risk of venous thrombosis in hyperhomocysteinemic relatives 20 fold, but a comparable effect was demonstrated in normohomocysteinemic relatives. We conclude that hyperhomocysteinaemia is associated with a low absolute risk of venous and arterial thrombosis. Concomitant thrombophilic defects are probably main determinants on the risk of venous thrombosis, rather than hyperhomocysteinaemia itself

Preserving fertility in young women undergoing chemotherapy for early breast cancer; the Maastricht experience

Purpose We assessed the uptake of fertility preservation (FP), recovery of ovarian function (OFR) after chemotherapy, live birth after breast cancer, and breast cancer outcomes in women with early-stage breast cancer. Methods Women aged below 41 years and referred to our center for FP counseling between 2008 and 2015 were included. Data on patient and tumor characteristics, ovarian function, cryopreservation (embryo/oocyte) and transfer, live birth, and disease-free survival were collected. Kaplan-Meier analyses were performed for time-to-event analyses including competing risk analyses, and patients with versus without FP were compared using the logrank test. Results Of 118 counseled women with a median age of 31 years (range 19-40), 34 (29%) chose FP. Women who chose FP had less often children, more often a male partner and more often favorable tumor characteristics. The 5-year OFR rate was 92% for the total group of counseled patients. In total, 26 women gave birth. The 5-year live birth rate was 27% for the total group of counseled patients. Only three women applied for transfer of their cryopreserved embryo(s), in two combined with preimplantation genetic diagnosis (PGD) because of BRCA1-mutation carrier ship. The 5-year disease-free survival rate was 91% versus 88%, for patients with versus without FP (P = 0.42). Conclusions Remarkably, most women achieved OFR, probably related to the young age at diagnosis. Most pregnancies occurred spontaneously, two of three women applied for embryo transfer because of the opportunity to apply for PGD

Preserving fertility in young women undergoing chemotherapy for early breast cancer; the Maastricht experience

Purpose We assessed the uptake of fertility preservation (FP), recovery of ovarian function (OFR) after chemotherapy, live birth after breast cancer, and breast cancer outcomes in women with early-stage breast cancer. Methods Women aged below 41 years and referred to our center for FP counseling between 2008 and 2015 were included. Data on patient and tumor characteristics, ovarian function, cryopreservation (embryo/oocyte) and transfer, live birth, and disease-free survival were collected. Kaplan-Meier analyses were performed for time-to-event analyses including competing risk analyses, and patients with versus without FP were compared using the logrank test. Results Of 118 counseled women with a median age of 31 years (range 19-40), 34 (29%) chose FP. Women who chose FP had less often children, more often a male partner and more often favorable tumor characteristics. The 5-year OFR rate was 92% for the total group of counseled patients. In total, 26 women gave birth. The 5-year live birth rate was 27% for the total group of counseled patients. Only three women applied for transfer of their cryopreserved embryo(s), in two combined with preimplantation genetic diagnosis (PGD) because of BRCA1-mutation carrier ship. The 5-year disease-free survival rate was 91% versus 88%, for patients with versus without FP (P = 0.42). Conclusions Remarkably, most women achieved OFR, probably related to the young age at diagnosis. Most pregnancies occurred spontaneously, two of three women applied for embryo transfer because of the opportunity to apply for PGD

Survival of Patients With Cancer With DPYD Variant Alleles and Dose-Individualized Fluoropyrimidine Therapy-A Matched-Pair Analysis

PURPOSE: -guided fluoropyrimidine dosing improves patient safety in carriers of variant alleles. However, the impact on treatment outcome in these patients is largely unknown. Therefore, progression-free survival (PFS) and overall survival (OS) were compared between variant carriers treated with a reduced dose and wild-type controls receiving a full fluoropyrimidine dose in a retrospective matched-pair survival analysis. METHODS: Data from a prospective multicenter study (ClinicalTrials.gov identifier: NCT02324452) in which variant carriers received a 25% (c.1236G>A and c.2846A>T) or 50% ( *2A and c.1679T>G) reduced dose and data from variant carriers treated with a similarly reduced dose of fluoropyrimidines identified during routine clinical care were obtained. Each variant carrier was matched to three wild-type controls treated with a standard dose. Survival analyses were performed using Kaplan-Meier estimates and Cox regression. RESULTS: In total, 156 variant carriers and 775 wild-type controls were available for analysis. Sixty-one c.1236G>A, 25 *2A, 13 c.2846A>T, and-when pooled-93 variant carriers could each be matched to three unique wild-type controls. For pooled variant carriers, PFS (hazard ratio [HR], 1.23; 95% CI, 1.00 to 1.51; = .053) and OS (HR, 0.95; 95% CI, 0.75 to 1.51; = .698) were not negatively affected by -guided dose individualization. In the subgroup analyses, a shorter PFS (HR, 1.43; 95% CI, 1.10 to 1.86; = .007) was found in c.1236G>A variant carriers, whereas no differences were found for *2A and c.2846A>T carriers. CONCLUSION: In this exploratory analysis, -guided fluoropyrimidine dosing does not negatively affect PFS and OS in pooled variant carriers. Close monitoring with early dose modifications based on toxicity is recommended, especially for c.1236G>A carriers receiving a reduced starting dose