Publications by authors named "Jan H Schornagel"

Background And Purpose: Cisplatin-based chemo-irradiation (CRT) is increasingly used for head and neck squamous cell carcinoma (HNSCC). We aimed to assess hearing deterioration due to low-dose cisplatin chemoradiation and to compare the observed hearing loss with hearing loss in our previously described high-dose cisplatin CRT cohort.

Materials And Methods: A prospective analysis of hearing thresholds at low and (ultra)-high frequencies obtained before and after treatment in 60 patients.

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Background: The purpose of this study was to evaluate the prognostic value of tumor volume in head and neck squamous cell carcinoma treated with chemoradiation.

Methods: Forty-six patients were treated with radiotherapy and cisplatin (6 mg/m(2) IV x 20, daily). Baseline primary tumor volume was recorded from MRI scans.

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Purpose: Cisplatin concomitantly administered with radiotherapy is increasingly used in locally advanced head and neck squamous cell carcinoma. We aimed to compare the incidence of hearing loss between patients treated with intra-arterial high-dose cisplatin chemoradiation with sodium thiosulfate (CRT-IA) and intravenous high-dose cisplatin chemoradiation without sodium thiosulfate (CRT-IV).

Patients And Methods: We conducted a prospective analysis of hearing thresholds at low and (ultra-) high frequencies obtained before, during, and after treatment in 158 patients.

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Background And Purpose: To evaluate treatment results of concurrent chemoradiation with daily low dose cisplatin.

Materials And Methods: 121 patients with advanced stage HNSCC were treated with RT (35 x 2 Gy) and cisplatin (6 mg/m(2) i.v.

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Purpose: Cisplatin chemo-irradiation is increasingly used in locally advanced squamous cell carcinoma of the head and neck. The objective of this study is to determine risk factors of ototoxicity due to intra-arterial high-dose cisplatin chemoradiation.

Methods And Materials: A prospective analysis of hearing thresholds at low and (ultra) high frequencies obtained before, during, and after treatment in 146 patients.

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Background And Purpose: Concomitant chemoradiation is more and more used for advanced head and neck cancer. It improves local control and survival compared to radiotherapy alone, but goes along with serious toxicity. This study was set up to determine the relationship between patient-, tumour- and treatment-related factors and acute/late toxicity after concomitant chemoradiation.

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Background: Dose-intensive chemotherapy has generated much interest in the treatment of patients with locally advanced breast cancer because it might offer a survival benefit. We aimed to compare the effects of such an approach with those of standard chemotherapy on health-related quality of life (HRQOL).

Methods: 224 patients with locally advanced breast cancer were randomly assigned to 75 mg/m(2) cyclophosphamide given orally on days 1-14, and 60 mg/m(2) epirubicin and 500 mg/m(2) fluorouracil both given intravenously on days 1 and 8, for six cycles every 28 days (6 months' treatment; standard treatment) and 224 patients to 830 mg/m(2) cyclophosphamide and 120 mg/m(2) epirubicin both given intravenously on day 1, and 5 microg/kg filgrastim per day given subcutaneously on days 2-13, for six cycles every 14 days (3 months' treatment; dose-intensive treatment).

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Background: Concurrent chemoradiation is being used increasingly to treat patients with advanced-stage head and neck carcinoma. In the current study, a clinical nomogram was developed to predict local control and overall survival rates for individual patients who will undergo chemoradiation.

Methods: Ninety-two consecutive patients with UICC TNM Stage III/IV squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, and supraglottic larynx were treated with selective-targeted chemoradiation (acronym: RADPLAT).

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Purpose: The purpose is to determine the effect of food on the bioavailability of S-1, an oral formulation of the 5-fluorouracil (5FU) prodrug Ftorafur (FT), 5-chloro-2,4-dihydroxypyridine (CDHP), a dihydropyrimidine dehydrogenase inhibitor, and oxonic acid (an inhibitor of 5FU phosphoribosylation in normal gut mucosa) in a molar ratio of 1:0.4:1.

Experimental Design: Eighteen patients received a single dose of S-1 of 35 mg/m(2) with (535-885 kcal) or without food in a crossover study design: in arm A without breakfast on day -7 and with breakfast on day 0 and in arm B the reversed sequence.

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Background: The purpose of this study was to study the effect of intensive targeted chemoradiation in a group of patients with head and neck cancer with stage IV inoperable disease.

Methods: We examined 79 patients with inoperable stage IV head and neck cancer receiving intra-arterial infusion of high-dose cisplatin (150 mg/m(2)) on days 2, 9, 16, and 23 concomitant with delivery of external beam radiotherapy (total dose, 70 Gy; 2 Gy, 35 fractions; 1 fraction/day for 7 weeks). Sodium thiosulfate was administered intravenously to provide effective cisplatin neutralization.

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Malignant salivary gland tumours are rare. The most common tumour site is the parotid. Aetiologic factors are not clear.

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Context: There has been increasing interest in the use of health-related quality-of-life (HRQL) assessments in daily clinical practice, yet few empirical studies have been conducted to evaluate the usefulness of such assessments.

Objective: To evaluate the efficacy of standardized HRQL assessments in facilitating patient-physician communication and increasing physicians' awareness of their patients' HRQL-related problems.

Design: Prospective, randomized crossover trial.

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Objective: To evaluate quality-of-life (QOL) aspects of an organ preservation intra-arterial chemotherapy and concomitant radiation protocol, RADPLAT.

Design: Nonrandomized phase 2B feasibility trial.

Patients: Fifty consecutive patients with inoperable stage IV head and neck cancer.

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We determined the mechanisms of resistance of human CCRF-CEM leukemia cells to methotrexate (MTX) vs. those to six novel antifolates: the polyglutamatable thymidylate synthase (TS) inhibitors ZD1694, multitargeted antifolate, pemetrexed, ALIMTA (MTA) and GW1843U89, the non-polyglutamatable inhibitors of TS, ZD9331, and dihydrofolate reductase, PT523, as well as DDATHF, a polyglutamatable glycinamide ribonucleotide transformylase inhibitor. CEM cells were made resistant to these drugs by clinically relevant intermittent 24 hr exposures to 5-10 microM of MTX, ZD1694, GW1843U89, MTA and DDATHF, by intermittent 72 hr exposures to 5 microM of ZD9331 and by continuous exposure to stepwise increasing concentrations of ZD9331, GW1843U89 and PT523.

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