Publications by authors named "Ridderheim M"

New data show a continuously increased five-year survival for almost all analyzed cancer diagnoses since 1990. It has to be emphasized that the figures are uncertain due to the limited number of patients. The variation is huge and the greatest improvements are seen not least among the three major tumor diseases (breast, colorectal and prostate cancer), where the society, industry and research bodies made the biggest investments over the years.

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Background: The addition of anthracyclines to platinum-based chemotherapy may provide benefit in survival in ovarian cancer patients. We evaluated the effect on survival of adding epirubicin to standard carboplatin and paclitaxel.

Patients And Methods: We carried out a prospectively randomized phase III study comparing carboplatin plus paclitaxel (TC; area under the curve 5 and 175 mg/m(2)) with the same combination and epirubicin (TEC; 75 mg/m(2) i.

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Article Synopsis
  • Lapatinib, an oral drug targeting EGFR and HER2, shows effectiveness as a single agent or with chemotherapy for metastatic breast cancer (MBC) that overexpresses HER2.
  • A phase II trial evaluated lapatinib combined with paclitaxel in untreated HER2-overexpressing MBC patients, focusing on overall response rate (ORR) and other efficacy and safety measures.
  • The results indicated a 51% ORR by independent review, with manageable side effects, suggesting the combination is a promising first-line treatment option for this patient group.
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Background: Correctly visualising the extent of the disease in cervical cancer is difficult with today's conventional imaging modalities. This paper presents the interim analysis of an on-going prospective study to evaluate the potential role of FDG-PET with software fusion with CT images in 3 different clinical settings of cervical cancer.

Methods: In Group 1, 10 patients with early stage cervical cancer underwent FDG-PET 6 months after surgery.

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We examined appropriate sequence, schedule, and doses of gemcitabine (G) and paclitaxel (T) in patients with persistent or recurrent epithelial ovarian cancer. Patients received a maximum of six cycles of gemcitabine on days 1 and 8 (starting 1000 mg/m(2)), and paclitaxel (starting 135 mg/m(2)) on day 8 (groups A and B) or day 1 (group C). Drug sequences (G-->T and T-->G) were tested in group A.

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Objective: Ovarian cancer has one of the highest fractions of hereditary cases. The hereditary breast and ovarian cancer syndrome, primarily due to mutations in BRCA1 and BRCA2, is the main cause of heredity, but also the hereditary nonpolyposis colorectal cancer (HNPCC) syndrome confers an increased risk of ovarian cancer. In order to clarify the contribution of HNPCC to the development of ovarian cancer, we collected data on family history of cancer and characterized MMR function in a consecutive series of 128 tumors unselected for age at diagnosis and previously characterized for BRCA gene mutations.

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A group of Swedish oncologists and hospital physicists have estimated the number of patients in Sweden suitable for proton beam therapy. The estimations have been based on current statistics of tumour incidence, number of patients potentially eligible for radiation treatment, scientific support from clinical trials and model dose planning studies and knowledge of the dose-response relations of different tumours and normal tissues. In prostate cancer it is estimated that annually about 300 patients and in gynaecological cancer about 50 patients, are candidates for proton beam therapy.

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Background: The objectives of this study were to determine the maximum tolerable dose (MTD), toxicity, efficacy, and feasibility of a sequential regimen of fixed-dose topotecan (1.00 mg/m2 on Days 1-5) and increasing doses of oral etoposide (50 mg, 75 mg, and 100 mg on Days 6-12 or Days 6-19) in patients with recurrent ovarian carcinoma.

Methods: This multicenter, open-label study was planned as a Phase I-II study that included patients with epithelial ovarian carcinoma who failed or who developed recurrent disease < 12 months after the end of platinum and taxane-containing chemotherapy.

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At least 10% of all ovarian cancers are estimated to have a hereditary background. Hereditary breast-ovarian cancer (HBOC) due to mutations in the BRCA genes is a major cause of hereditary ovarian cancer, although its frequency and relationship to age and family history in unselected series of ovarian cancers is not completely known. We report here the results of a full mutational screening analysis for germ line BRCA1 and BRCA2 mutations in 161 patients with invasive epithelial ovarian carcinomas.

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The objective of this study was to compare the safety and efficacy of carboplatin plus epirubicin and paclitaxel (TEC) to carboplatin and paclitaxel (TC), in the treatment of epithelial ovarian, peritoneal, or tubal carcinoma. Between March 1999 and August 2001, 887 patients were randomized to receive six to nine cycles of paclitaxel (175 mg/m2, 3 h intravenously) followed by carboplatin (AUC 5, Calvert formula) with or without epirubicin (75 mg/m2 intravenously prior to paclitaxel), on a 3-weekly schedule. The primary endpoint was progression-free survival.

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A systematic review of radiation therapy trials in several tumour types was performed by The Swedish Council of Technology Assessment in Health Care (SBU). The procedures for evaluation of the scientific literature are described separately (Acta Oncol 2003; 42: 357-365). This synthesis of the literature on radiation therapy for ovarian cancer is based on data from six randomized trials.

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Article Synopsis
  • The Swedish Council of Technology Assessment in Health Care (SBU) conducted a systematic review of radiation therapy trials for uterine cancer using data from one randomized and several other studies, totaling 10 articles and 3,446 patients.
  • The findings indicate that adjuvant radiotherapy is generally unnecessary for patients with good risk uterine cancer but can reduce relapse rates in high-risk patients, without affecting overall survival.
  • Additionally, there is strong evidence supporting the use of radiotherapy as a curative treatment for patients who are medically inoperable or those with locally recurrent uterine cancer.
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A systematic review of radiation therapy trials in several tumour types was performed by The Swedish Council of Technology Assessment in Health Care (SBU). The procedures for evaluation of the scientific literature are described separately (Acta Oncol 2003; 42: 357-365). This synthesis of the literature on radiation therapy for cervical cancer is based on data from 1 meta-analysis and 34 randomized trials.

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Article Synopsis
  • The study aimed to evaluate the safety and effectiveness of a new scalp-cooling system to prevent hair loss caused by chemotherapy.
  • A total of 74 female cancer patients underwent treatment with this system, which kept the scalp at a low temperature during chemotherapy and showed promising results in reducing hair loss.
  • The results indicated that the device was well-tolerated, with minimal side effects, and suggested further clinical trials to optimize its use for different chemotherapies.
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The aim of this study was to evaluate the efficacy and toxicity of paclitaxel given at the same dose intensity and administered weekly (arm A) or every 3 weeks (arm B). and to assess the safety of intravenous steroids versus standard peroral premedication. Two hundred and eight patients with advanced ovarian cancer previously treated with no more than one platinum-containing regimen were randomized to receive either a weekly infusion of paclitaxel or an infusion every 3 weeks.

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Mutations in the TP53 tumor suppressor gene have been shown to significantly correlate with poor prognosis in endometrial cancer. In the present study we have evaluated a luminometric immunoassay (LIA) for quantitative estimation of TP53 protein expression in 65 cytosol preparations from endometrial cancer, previously analyzed for mutations in TP53 exons 4-10. LIA showed high (> or = 0.

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The purpose of this study was to further investigate the role of estrogen but especially progesterone on epithelial ovarian tumor development since previous studies have suggested a relationship between serum progesterone, progesterone receptor expression and prognosis. Serum progesterone concentration, the immunohistochemical expression of estrogen receptor alpha (ER), progesterone receptor A/B (PR), Ki-67, Bcl-2, p53, apoptosis and morphology were determined in 33 patients, all with poorly differentiated surface epithelial ovarian tumors of different types. ER was expressed in 79% and PR in 33% of the tumors.

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Background: Cerebral metastasis secondary to ovarian cancer is a rare phenomenon. While no clear relationship to known prognostic factors is found, others suggest this as a biologically diverse behavior of ovarian cancer.

Cases: In a pilot study, 37 invasive epithelial ovarian cancer samples were analyzed to detect the frequency of BRCA1/BRCA2 mutations in the south of Sweden (results published).

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We analyzed 37 primary invasive carcinomas for BRCA1 and BRCA2 mutations by screening the entire coding regions of both genes. Seven predicted truncating mutations (four in BRCA1 and three in BRCA2) and one novel BRCA1 missense variant (S1542C) were identified (8/37, 22%). Two of the BRCA1 mutations were somatic changes, whereas the remaining three BRCA1 changes and all mutations of BRCA2 were found to be of germline origin.

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The purpose of this study was to evaluate the reproducibility and reliability of the fluorometric microculture cytotoxicity assay (FMCA). Emphasis was placed on obtaining pure tumour cell cultures which were subjected to careful cytological evaluation. Preparations of 39 ovarian tumours, malignant, borderline and benign were made, of which 37 were successfully cultured.

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In this investigation, the in vitro production of progesterone and estradiol in ovarian tissues was studied for the first time in relation to the immunohistochemical expression of steroid hormone receptors, Ki-67, p53, DNA ploidy and S-phase fraction. Ovarian tissue from 44 women was examined. Steroid receptors were found more frequently in normal than in tumor ovaries.

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Previous studies have demonstrated locally increased steroid production and release of EGF/TGF-alpha in ovarian carcinomas. The influence of added steroid hormones on EGF-like activity in ovarian tumours in vitro was investigated. Using radioreceptor assay, EGF-like activity was measured in media from incubations of postmenopausal ovaries, benign and malignant epithelial ovarian tumours from 27 patients.

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EGF-like activity was measured in media from 3-hour incubations of ovarian tissue from 27 patients with normal postmenopausal ovaries, malignant or benign epithelial tumours. EGF-like activity in the medium was measured using a radioreceptor assay. Malignant tumour tissue released significantly more EGF/TGF-alpha than benign tissues and aneuploid carcinomas more than diploid carcinomas.

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EGF/TGF-alpha and progesterone were measured in the urine of 74 ovarian carcinoma patients, 21 postmenopausal women with non-gynecological disseminated cancer, 20 premenopausal and 20 postmenopausal controls. Radically operated women excreted significantly less EGF/TGF-alpha into urine than women with residual tumour mass. The patients who died from ovarian carcinoma had significantly higher concentrations of growth factor in urine than patients who were alive and disease-free at follow-up.

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