Search results for " Dose"

Cohort study of occupational cosmic radiation dose and cancer mortality in German aircrew, 1960-2014.

2020

ObjectivesTo determine cancer mortality compared with the general population and to examine dose-response relationships between cumulative occupational radiation dose and specific cancer outcomes in the German aircrew cohort.MethodsFor a cohort of 26 846 aircrew personnel, standardised mortality ratios (SMR) were calculated. Dose-response analyses were carried out using Poisson regression to assess dose-related cancer risks for the period 1960–2014. Exposure assessment comprises recently available dose register data for all cohort members and newly estimated retrospective cabin crew doses for 1960–2003.ResultsSMR for all-cause, specific cancer groups and most individual cancers were reduced…

Clinical Translation and First In-Human Use of [44Sc]Sc-PSMA-617 for PET Imaging of Metastasized Castrate-Resistant Prostate Cancer

2017

Background: Various trivalent radiometals are well suited for labeling of DOTA-conjugated variants of Glu-ureido-based prostate-specific membrane antigen (PSMA) inhibitors. The DOTA-conjugate PSMA-617 has proven high potential in PSMA radioligand therapy (PSMA-RLT) of prostate cancer as well as PET imaging when labeled with lutetium-177 and gallium-68 respectively. Considering the relatively short physical half-life of gallium-68 this positron emitter precludes prolonged acquisition periods, as required for pre-therapeutic dosimetry or intraoperative applications. In this context, the positron emitter scandium-44 is an attractive alternative for PET imaging. We report the synthesis of [44Sc…

Sorafenib (SFB) low dose in octogenarians with advanced or inoperable (a/i) HCC: Toxicity and efficacy evaluation.

2013

e20719 Background: HCC accounts for approximately 90% of all primary liver cancers, and is the fifth most common cancer in the world. So far prognosis of AHCC is very poor, particularly if consider very elderly pts. Treatment with SFB at standard dose may results in untolerable toxicity especially in very old people with HCC Cancer Aim of the study is to investigate if SFB at reduced dose is efficient and tolerable in octogenarian people with HCC. Methods: 30 patients,16 male and 14 female with AHCC histologically proven were enrolled; mean age was 79. Main Inclusion Criteria: Child-Pugh A or B; adequate liver, hematological, and renal function; informed writed consent acquired. Comprehens…

Phase II study of fulvestrant 250mg/month in patients with recurrent or metastatic endometrial cancer: A study of the Arbeitsgemeinschaft Gynäkologis…

2013

Abstract Objectives The aim of this study is to evaluate the activity and toxicity of fulvestrant, a pure estrogen receptor antagonist in patients with advanced or recurrent endometrial cancer, expressing estrogen and/or progesterone receptors (ER/PR). Methods Eligible patients with advanced or recurrent endometrial cancer not amenable to curative surgery and/or radiotherapy were treated with fulvestrant at a dose of 250mg by IM injection every 4weeks for at least 12weeks. Therapy was continued until disease progression, death, intolerable side effects or end of study. Response was assessed in patients with at least one target lesion according to WHO-criteria. Results Thirty-five patients w…

Out-patient low-dose oral chemotherapy in hormone refractory prostate carcinoma (HRPC) patients unfit for hospital admittance.

2008

Objectives: Well tolerated out-patient regimens for HRPC chemotherapy in elderly patients with geographical difficulties and/or unwilling hospital admission are needed. The aim of the present study was to investigate the safety and efficacy of a low-dose oral combination of estramustine phosphate (EMP) and etoposide (VP16). Patients: Fifty-six HRPC patients, median age 75 years, were randomized between daily EMP (10mg/kg) – arm A, and low-dose EMP (3mg/kg) plus VP16 (25mg/mq) 2 weeks monthly – arm B. Randomization ratio was 2:3. Median PSA was 41.1 ng/ml. Baseline characteristics between the 2 groups were similar. LHRH therapy was maintained. Antiandrogen was stopped one month before entry.…

P-42 Reduced-dose of doublet chemotherapy combined with anti-EGFR antibodies as treatment option in vulnerable older patients with metastatic colorec…

2021

Feasibility, Tolerability and Efficacy of Carfilzomib in Combination with Lenalidomide and Dexamethasone in Relapsed Refractory Myeloma Patients: A R…

2019

Background: The ASPIRE (NCT01080391) phase 3 trial showed the efficacy of carfilzomib, lenalidomide and dexamethasone (KRd) triplet for relapse and refractory multiple myeloma (RRMM). However, little is known about safety and efficacy of KRd outside a clinical trial context. Methods: Herein we report real life results of KRd given to 130 RRMM patients from 12 Sicilian Centers. Results: Median age was 62 years

530MO Clinical benefit in biomarker-positive patients (pts) with locally advanced or metastatic solid tumours treated with the PARP1/2 inhibitor pami…

2020

Second follow-up of a German cohort on childhood cancer incidence after exposure to postnatal diagnostic x-ray.

2019

Studies on children exposed to ionizing radiation by computed tomography (CT) indicate an increased risk of leukemia and central nervous system (CNS) tumors. Evidence of the risks associated with diagnostic X-ray examinations, the most frequent examination in pediatric radiology, in which the radiation dose is up to 750 times lower compared to CT examinations, is less clear.a#13; This study presents results of the second follow-up for the risk of childhood cancer in a cohort of children (alt;15 years) with diagnostic X-ray exposure at a large German hospital during 1976-2003 followed for additional 10 years until 2016.a#13; With a latency period of six months, 92,998 children contributed 79…

Mutational Profiling Predicts Clinical Outcomes to Azacytidine and Low Dose Cytarabine Plus Fludarabine (FLUGA) in Elderly Acute Myeloid Leukemia Pat…

2019

BACKGROUND: Older patients with acute myeloid leukaemia (AML) who are unsuitable for standard induction therapy have limited treatment options. While DNMT3A, TET2, IDH1/2 and TP53 mutations have been previously associated to better response to hypomethylating agents, there are no molecular biomarkers for low-dose cytarabine (LDAC)-based regimens. AIMS: To predict outcome in AML older patients at diagnosis based on mutation status in the context of FLUGAZA trial. FLUGAZA trial was focus on >65 years AML de novo patients comparing azacytidine vs. fludarabine and LDAC (FLUGA Scheme). METHODS: We analyzed bone marrow (BM) samples at diagnosis from 209 out of 285 AML patients treated accordin…