19 results on '"HEYNS, LIESBETH"'
Search Results
2. Long-term cognitive and cardiac outcomes after prenatal exposure to chemotherapy in children aged 18 months or older: an observational study
- Author
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Amant, Frédéric, Van Calsteren, Kristel, Halaska, Michael J, Gziri, Mina Mhallem, Hui, Wei, Lagae, Lieven, Willemsen, Michèl A, Kapusta, Livia, Van Calster, Ben, Wouters, Heidi, Heyns, Liesbeth, Han, Sileny N, Tomek, Viktor, Mertens, Luc, and Ottevanger, Petronella B
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- 2012
- Full Text
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3. Substantial Variation in Transplacental Transfer of Chemotherapeutic Agents in a Mouse Model
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Van Calsteren, Kristel, Verbesselt, Rene, Van Bree, Rieta, Heyns, Liesbeth, de Bruijn, Ernst, de Hoon, Jan, and Amant, Frédéric
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- 2011
- Full Text
- View/download PDF
4. Tongue cancers during pregnancy: Case reports and review of literature
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Mhallem Gziri, Mina, Han, Sileny N., Van Calsteren, Kristel, Heyns, Liesbeth, Delaere, Pierre, Nuyts, Sandra, Van den Heuvel, Frank, Cheron, Anne–Céline, Fossion, Eric, Van den Weyngaert, Danielle, Lok, Christianne, and Amant, Frédéric
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- 2013
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5. Chemotherapy during pregnancy: effect of anthracyclines on fetal and maternal cardiac function
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GZIRI, MINA MHALLEM, DEBIÈVE, FRÉDÉRIC, DE CATTE, LUC, MERTENS, LUC, BARREA, CATHERINE, VAN CALSTEREN, KRISTEL, HAN, SILENY N., HEYNS, LIESBETH, and AMANT, FRÉDÉRIC
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- 2012
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6. Pharmacokinetics of chemotherapeutic agents in pregnancy: a preclinical and clinical study
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Van Calsteren, Kristel, Verbesselt, René, Ottevanger, Nelleke, Halaska, Michael, Heyns, Liesbeth, Van Bree, Rieta, de Bruijn, Ernst, Chai, Daniel, Delforge, Michel, Noens, Lucien, Renard, Vincent, Witteveen, Els, Rob, Lukas, de Hoon, Jan, and Amant, Frédéric
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- 2010
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7. Enrichment of collagen plugs with platelets and amniotic fluid cells increases cell proliferation in sealed iatrogenic membrane defects in the foetal rabbit model
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Liekens, Daisy, Lewi, Liesbeth, Jani, Jacques, Heyns, Liesbeth, Poliard, Eline, Verbist, Godelieve, Ochsenbein-Kölble, Nicole, Hoylaerts, Marc, and Deprest, Jan
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- 2008
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8. High-grade endometrial stromal sarcoma presenting in a 28-year-old woman during pregnancy: a case report
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Amant Frédéric, Van Calsteren Kristel, Debiec-Rychter Maria, Heyns Liesbeth, De Beeck Katya Op, Sagaert Xavier, Bollen Bart, and Vergote Ignace
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Medicine - Abstract
Abstract Introduction To the best of our knowledge, soft tissue sarcomas have not prevously been reported as a complication during pregnancy. Case presentation A 28-year-old Caucasian woman was diagnosed with a transperitoneal sarcoma during pregnancy. Morphological, immunohistochemical, chromosomal and mutational analyses pointed towards a high-grade endometrial stromal sarcoma. Although surgery and chemotherapy are possible during pregnancy, we were unable to perform these in this case. Conclusion The potential to treat gynecological cancer during pregnancy should always be assessed individually.
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- 2010
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9. Transplacental Transfer of Paclitaxel, Docetaxel, Carboplatin, and Trastuzumab in a Baboon Model
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van Calsteren, Kristel, Verbesselt, Rene, Devlieger, Roland, de Catte, Luc, Chai, Daniel C., van Bree, Rieta, Heyns, Liesbeth, Beijnen, Jos, Demarsin, Sonia, de Bruijn, Ernst, de Hoon, Jan, Amant, Frédéric, and Other departments
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neoplasms - Abstract
Background: The paucity of data on fetal effects of prenatal exposure to chemotherapy prompted us to study the transplacental transport of commonly used anticancer agents in a pregnant baboon model. Methods: Single or combination chemotherapy with paclitaxel, docetaxel, carboplatin, and trastuzumab was administered to 9 baboons at a mean (SD) gestational age of 117 (26) days (paclitaxel, 100 mg/m(2) [n = 2]; docetaxel, 100 mg/m(2) [n = 2]; paclitaxel, 175 mg/m(2) with carboplatin, area under the curve of 6 at standard dosage [n = 2] and 50% dosage [n = 1]; docetaxel, 75 mg/m(2) with carboplatin, area under the curve 6 [n = 1]; and docetaxel, 75 mg/m(2) with trastuzumab, 8 mg/kg [n = 1]). Serial fetal and maternal blood samples, amniotic fluid, maternal urine, and fetal and maternal tissue samples were collected for the first 76 hours after drug infusion. Levels of carboplatin were determined by atomic absorption spectrometry, docetaxel and paclitaxel by high-performance liquid chromatography, and trastuzumab by enzyme-linked immunosorbent assay. Results: Fetal plasma concentrations of carboplatin averaged 57.5% (14.2%) of maternal concentrations (n = 7). Fetal plasma concentrations were 1.5% (0.8%) of maternal concentrations (n = 7). Immediately after ending the infusion, paclitaxel was not detectable in fetal tissues, whereas, after 3 hours, fetal tissues contained 15% of maternal tissue concentrations. Docetaxel could not be detected in fetal blood samples (n = 9). In the first 3 hours after docetaxel infusion, fetal tissues contained 5.0% to 50.0% of maternal tissue concentrations, whereas equal fetal and maternal tissue concentrations were found after 26 and 76 hours. The transplacental passages of trastuzumab were 85.0% and 3.0%, 2 and 26 hours after trastuzumab infusion, respectively. After 26 hours, amniotic fluid contained 36.4% of the fetal plasma concentration. Fetal tissue concentrations varied between 5.0% and 14.0% of the maternal concentration. Conclusion: Variable plasma and/or tissue concentrations of taxanes, carboplatin, and trastuzumab were encountered in the fetal compartment. These data are important when cancer treatment is considered during pregnancy and underline the need for long-term follow-up of children after prenatal exposure to these cytotoxic agents
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- 2010
10. Tongue cancers during pregnancy: Case reports and review of literature
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UCL - SSS/IREC - Institut de recherche expérimentale et clinique, UCL - (SLuc) Service d'obstétrique, Mhallem Gziri, Mina, Han, Sileny N., Van Calsteren, Kristel, Heyns, Liesbeth, Delaere, Pierre, Nuyts, Sandra, Van Den Heuvel, Frank, Cheron, Céline, Fossion, Eric, Van Den Weyngaert, Danielle, Lok, Christianne, Amant, Frédéric, UCL - SSS/IREC - Institut de recherche expérimentale et clinique, UCL - (SLuc) Service d'obstétrique, Mhallem Gziri, Mina, Han, Sileny N., Van Calsteren, Kristel, Heyns, Liesbeth, Delaere, Pierre, Nuyts, Sandra, Van Den Heuvel, Frank, Cheron, Céline, Fossion, Eric, Van Den Weyngaert, Danielle, Lok, Christianne, and Amant, Frédéric
- Abstract
Background: Due to its rarity, there is no standard treatment for tongue cancers that concur with pregnancy. Treatment depends on the stage of cancer, gestational age of the pregnancy, and the wish of the mother to maintain the pregnancy. The purpose of this study was to review the literature and to report 5 new cases. Methods: Twelve cases of tongue cancer during pregnancy were already reported between 1987 and 2009. We report 5 new cases and first administration of concomitant radiochemotherapy for tongue cancer. Results: Median age of the patients was 29 years, 65% of diagnoses were made after the first trimester of pregnancy. Different treatment modalities are used to treat tongue cancer during pregnancy. Conclusion We hypothesize that tongue cancer treatment adhering to standard protocols provides the best guarantee to cure the mother. Based on a growing experience and insight taking fetal safety into consideration, the available data suggest that standard treatment is a realistic option. © 2011 Wiley Periodicals, Inc.
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- 2013
11. Chemotherapy during pregnancy: effect of anthracyclines on fetal and maternal cardiac function
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UCL - SSS/IREC - Institut de recherche expérimentale et clinique, UCL - SSS/IREC/PEDI - Pôle de Pédiatrie, UCL - (SLuc) Service d'obstétrique, UCL - (SLuc) Service de cardiologie pédiatrique, Mhallem Gziri, Mina, Debiève, Frédéric, De Catte, Luc, Mertens, Luc, Barréa, Catherine, Van Calsteren, Kristel, Han, Sileny N, Heyns, Liesbeth, Amant, Frédéric, UCL - SSS/IREC - Institut de recherche expérimentale et clinique, UCL - SSS/IREC/PEDI - Pôle de Pédiatrie, UCL - (SLuc) Service d'obstétrique, UCL - (SLuc) Service de cardiologie pédiatrique, Mhallem Gziri, Mina, Debiève, Frédéric, De Catte, Luc, Mertens, Luc, Barréa, Catherine, Van Calsteren, Kristel, Han, Sileny N, Heyns, Liesbeth, and Amant, Frédéric
- Abstract
Chemotherapy and especially anthracyclines are associated to cardiotoxicity. To assess this potential risk during pregnancy a clinical case-control trial was conducted. Maternal cardiac function, fetal Doppler and fetal cardiac function were evaluated before and after chemotherapy. Maternal cardiac function was assessed by echocardiography before and after the third cycle of anthracyclines and compared with a control group of 10 non-pregnant women matched for age, type of cancer and anthracycline treatment. Ten fetuses exposed to chemotherapy were compared with 10 control fetuses matched for gestational age and gender. Biometry, amniotic fluid index, fetal Doppler and cardiac function were assessed before and after each cycle of chemotherapy. In all, 108 fetal ultrasounds scans were performed before and after 36 cycles of chemotherapy. Anthracycline exposure did not result in acute maternal and fetal cardiac dysfunction in this small cohort study.
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- 2012
12. Long-term cognitive and cardiac outcomes after prenatal exposure to chemotherapy in children aged 18 months or older: an observational study
- Author
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UCL - (SLuc) Service d'obstétrique, Amant, Frédéric, Van Calsteren, Kristel, Halaska, Michael J, Mhallem Gziri, Mina, Hui, Wei, Lagae, Lieven, Willemsen, Michèl A, Kapusta, Livia, Van Calster, Ben, Wouters, Heidi, Heyns, Liesbeth, Han, Sileny N, Tomek, Viktor, Mertens, Luc, Ottevanger, Petronella B, UCL - (SLuc) Service d'obstétrique, Amant, Frédéric, Van Calsteren, Kristel, Halaska, Michael J, Mhallem Gziri, Mina, Hui, Wei, Lagae, Lieven, Willemsen, Michèl A, Kapusta, Livia, Van Calster, Ben, Wouters, Heidi, Heyns, Liesbeth, Han, Sileny N, Tomek, Viktor, Mertens, Luc, and Ottevanger, Petronella B
- Abstract
BACKGROUND: Chemotherapy for the treatment of maternal cancers during pregnancy has become more acceptable in the past decade; however, the effect of prenatal exposure to chemotherapy on cardiac and neurodevelopmental outcomes of the offspring is still uncertain. We aimed to record the general health, cardiac function, and neurodevelopmental outcomes of children who were prenatally exposed to chemotherapy. METHODS: We did an interim analysis of a multicentre observational cohort study assessing children who were prenatally exposed to maternal cancer staging and treatment, including chemotherapy. We assessed children at birth, at age 18 months, and at age 5-6, 8-9, 11-12, 14-15, or 18 years. We did clinical neurological examinations, tests of the general level of cognitive functioning (Bayley or intelligence quotient [IQ] test), electrocardiography and echocardiography, and administered a questionnaire on general health and development. From age 5 years, we also did audiometry, the Auditory Verbal Learning Test, and subtasks of the Children's Memory Scale, and the Test of Everyday Attention for Children, and we also completed the Child Behavior Checklist. This study is registered with ClinicalTrials.gov, number NCT00330447. FINDINGS: 236 cycles of chemotherapy were administered in 68 pregnancies. We assessed 70 children, born at a median gestational age of 35·7 weeks (range 28·3-41·0; IQR 3·3; 47 women at <37 weeks), with a median follow-up period of 22·3 months (range 16·8-211·6; IQR 54·9). Although neurocognitive outcomes were within normal ranges, cognitive development scores were lower for children who were born preterm than for those born at full term. When controlling for age, sex, and country, the score for IQ increased by an average 11·6 points (95% CI 6·0-17·1) for each additional month of gestation (p<0·0001). Our measurements of the children's behaviour, general health, hearing, and growth corresponded with those of the general population. Cardiac dimensio
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- 2012
13. Treatment of breast cancer during pregnancy: an observational study
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UCL - (SLuc) Service d'obstétrique, Loibl, Sibylle, Han, Sileny N, von Minckwitz, Gunter, Bontenbal, Marijke, Ring, Alistair, Giermek, Jerzy, Fehm, Tanja, Van Calsteren, Kristel, Linn, Sabine C, Schlehe, Bettina, Mhallem Gziri, Mina, Westenend, Pieter J, Müller, Volkmar, Heyns, Liesbeth, Rack, Brigitte, Van Calster, Ben, Harbeck, Nadia, Lenhard, Miriam, Halaska, Michael J, Kaufmann, Manfred, Nekljudova, Valentina, Amant, Frederic, UCL - (SLuc) Service d'obstétrique, Loibl, Sibylle, Han, Sileny N, von Minckwitz, Gunter, Bontenbal, Marijke, Ring, Alistair, Giermek, Jerzy, Fehm, Tanja, Van Calsteren, Kristel, Linn, Sabine C, Schlehe, Bettina, Mhallem Gziri, Mina, Westenend, Pieter J, Müller, Volkmar, Heyns, Liesbeth, Rack, Brigitte, Van Calster, Ben, Harbeck, Nadia, Lenhard, Miriam, Halaska, Michael J, Kaufmann, Manfred, Nekljudova, Valentina, and Amant, Frederic
- Abstract
BACKGROUND: Little is known about the treatment of breast cancer during pregnancy. We aimed to determine whether treatment for breast cancer during pregnancy is safe for both mother and child. METHODS: We recruited patients from seven European countries with a primary diagnosis of breast cancer during pregnancy; data were collected retrospectively if the patient was diagnosed before April, 2003 (when the registry began), or prospectively thereafter, irrespective of the outcome of pregnancy and the type and timing of treatment. The primary endpoint was fetal health for up to 4 weeks after delivery. The registry is ongoing. The study is registered with ClinicalTrials.gov, number NCT00196833. FINDINGS: From April, 2003, to December, 2011, 447 patients were registered, 413 of whom had early breast cancer. Median age was 33 years (range 22-51). At the time of diagnosis, median gestational age was 24 weeks (range 5-40). 197 (48%) of 413 women received chemotherapy during pregnancy with a median of four cycles (range one to eight). 178 received an anthracycline, 15 received cyclophosphamide, methotrexate, and fluorouracil, and 14 received a taxane. Birthweight was affected by chemotherapy exposure after adjustment for gestational age (p=0·018), but not by number of chemotherapy cycles (p=0·71). No statistical difference between the two groups was observed for premature deliveries before the 37th week of gestation. 40 (10%) of 386 infants had side-effects, malformations, or new-born complications; these events were more common in infants born before the 37th week of gestation than they were in infants born in the 37th week or later (31 [16%] of 191 infants vs nine [5%] of 195 infants; p=0·0002). In infants for whom maternal treatment was known, adverse events were more common in those who received chemotherapy in utero compared with those who were not exposed (31 [15%] of 203 vs seven [4%] of 170 infants; p=0·00045). Two infants died; both were exposed to chemotherapy and d
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- 2012
14. Cancer During Pregnancy: An Analysis of 215 Patients Emphasizing the Obstetrical and the Neonatal Outcomes.
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UCL - MD/GYPE - Département de gynécologie, d'obstétrique et de pédiatrie, Van Calsteren, Kristel, Heyns, Liesbeth, De Smet, Frank, Van Eycken, Liesbet, Mhallem Gziri, Anissa, Van Gemert, Willemijn, Halaska, Michael, Vergote, Ignace, Ottevanger, Nelleke, Amant, Frédéric, UCL - MD/GYPE - Département de gynécologie, d'obstétrique et de pédiatrie, Van Calsteren, Kristel, Heyns, Liesbeth, De Smet, Frank, Van Eycken, Liesbet, Mhallem Gziri, Anissa, Van Gemert, Willemijn, Halaska, Michael, Vergote, Ignace, Ottevanger, Nelleke, and Amant, Frédéric
- Abstract
PURPOSE: The aim of this study was to assess the management and the obstetrical and neonatal outcomes of pregnancies complicated by cancer. PATIENTS AND METHODS: In an international collaborative setting, patients with invasive cancer diagnosed during pregnancy between 1998 and 2008 were identified. Clinical data regarding the cancer diagnosis and treatment and the obstetric and neonatal outcomes were collected and analyzed. RESULTS: Of 215 patients, five (2.3%) had a pregnancy that ended in a spontaneous miscarriage and 30 (14.0%) pregnancies were interrupted. Treatment was initiated during pregnancy in 122 (56.7%) patients and postpartum in 58 (27.0%) patients. The most frequently encountered cancer types were breast cancer (46%), hematologic malignancies (18%), and dermatologic malignancies (10%). The mean gestational age at delivery was 36.3 +/- 2.9 weeks. Delivery was induced in 71.7% of pregnancies, and 54.2% of children were born preterm. In the group of patients prenatally exposed to cytotoxic treatment, the prevalence of preterm labor was increased (11.8%; P = .012). Furthermore, in this group a higher proportion of small-for-gestational-age children (birth weight below 10th percentile) was observed (24.2%; P = .001). Of all neonates, 51.2% were admitted to a neonatal intensive care unit, mainly (85.2%) because of prematurity. There was no increased incidence of congenital malformations. CONCLUSION: Pregnant cancer patients should be treated in a multidisciplinary setting with access to maternal and neonatal intensive care units. Prevention of iatrogenic prematurity appears to be an important part of the treatment strategy.
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- 2009
15. Tongue cancers during pregnancy: Case reports and review of literature
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Mhallem Gziri, Mina, primary, Han, Sileny N., additional, Van Calsteren, Kristel, additional, Heyns, Liesbeth, additional, Delaere, Pierre, additional, Nuyts, Sandra, additional, Van den Heuvel, Frank, additional, Cheron, Anne-Céline, additional, Fossion, Eric, additional, Van den Weyngaert, Danielle, additional, Lok, Christianne, additional, and Amant, Frédéric, additional
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- 2011
- Full Text
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16. Cancer During Pregnancy: An Analysis of 215 Patients Emphasizing the Obstetrical and the Neonatal Outcomes
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Van Calsteren, Kristel, primary, Heyns, Liesbeth, additional, De Smet, Frank, additional, Van Eycken, Liesbet, additional, Gziri, Mina Mhallem, additional, Van Gemert, Willemijn, additional, Halaska, Michael, additional, Vergote, Ignace, additional, Ottevanger, Nelleke, additional, and Amant, Frédéric, additional
- Published
- 2010
- Full Text
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17. Gynecologic Cancers in Pregnancy
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Amant, Frédéric, primary, Van Calsteren, Kristel, additional, Halaska, Michael J., additional, Beijnen, Jos, additional, Lagae, Lieven, additional, Hanssens, Myriam, additional, Heyns, Liesbeth, additional, Lannoo, Lore, additional, Ottevanger, Nelleke P., additional, Vanden Bogaert, Walter, additional, Ungar, Laszlo, additional, Vergote, Ignace, additional, and du Bois, Andreas, additional
- Published
- 2009
- Full Text
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18. Management of Cancer During Pregnancy Emphasizing Maternal and Fetal Effects.
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Gziri, Mina Mhallem, Van Calsteren, Kristel, Heyns, Liesbeth, Han, Sileny, Debiève, Frédéric, and Amant, Frédéric
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CANCER treatment ,CANCER complications ,CANCER in pregnancy ,BREAST cancer ,GESTATIONAL age ,DRUG therapy ,PHARMACOKINETICS - Abstract
One in 1000 pregnancies is complicated by maternal cancer. The most frequently encountered malignancies are breast cancer, hematologic tumors, and skin cancer. Cancer management implies multidisciplinary decisions taking into account the (sub)type and stage of cancer, the gestational age at diagnosis, and patient's wish to preserve the pregnancy. Oncological treatment modalities including surgery, radiotherapy, and chemotherapy are possible during pregnancy, however, under strict conditions. Actually, pregnant patients receive the same dosages of chemotherapeutic agents as nonpregnant women, despite gestational changes in hemodynamics and drug pharmacokinetics. Data on the outcome of the children are limited. Neonatal outcome seems reassuring, albeit data on long-term outcomes are lacking. Cancer during pregnancy poses a real challenge for obstetricians, oncologists, and pediatricians to balance fetal and maternal risks and benefices. Here, we address some important clinical issues related to the management of cancer complicating pregnancy [ABSTRACT FROM AUTHOR]
- Published
- 2012
19. Transplacental Transfer of Paclitaxel, Docetaxel, Carboplatin, and Trastuzumab in a Baboon Model.
- Author
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Calsteren, Kristel Van, Verbesselt, Rene, Devlieger, Roland, De Catte, Luc, Chai, Daniel C., Van Bree, Rieta, Heyns, Liesbeth, Beijnen, Jos, Demarsin, Sonia, de Bruijn, Ernst, de Hoon, Jan, and Amant, Frédéric
- Abstract
The paucity of data on fetal effects of prenatal exposure to chemotherapy prompted us to study the transplacental transport of commonly used anticancer agents in a pregnant baboon model.Single or combination chemotherapy with paclitaxel, docetaxel, carboplatin, and trastuzumab was administered to 9 baboons at a mean (SD) gestational age of 117 (26) days (paclitaxel, 100 mg/m
2 [n = 2]; docetaxel, 100 mg/m2 [n = 2]; paclitaxel, 175 mg/m2 with carboplatin, area under the curve of 6 at standard dosage [n = 2] and 50% dosage [n = 1]; docetaxel, 75 mg/m2 with carboplatin, area under the curve 6 [n = 1]; and docetaxel, 75 mg/m2 with trastuzumab, 8 mg/kg [n = 1]). Serial fetal and maternal blood samples, amniotic fluid, maternal urine, and fetal and maternal tissue samples were collected for the first 76 hours after drug infusion. Levels of carboplatin were determined by atomic absorption spectrometry, docetaxel and paclitaxel by high-performance liquid chromatography, and trastuzumab by enzyme-linked immunosorbent assay.Fetal plasma concentrations of carboplatin averaged 57.5% (14.2%) of maternal concentrations (n = 7). Fetal plasma concentrations were 1.5% (0.8%) of maternal concentrations (n = 7). Immediately after ending the infusion, paclitaxel was not detectable in fetal tissues, whereas, after 3 hours, fetal tissues contained 15% of maternal tissue concentrations.Docetaxel could not be detected in fetal blood samples (n = 9). In the first 3 hours after docetaxel infusion, fetal tissues contained 5.0% to 50.0% of maternal tissue concentrations, whereas equal fetal and maternal tissue concentrations were found after 26 and 76 hours.The transplacental passages of trastuzumab were 85.0% and 3.0%, 2 and 26 hours after trastuzumab infusion, respectively. After 26 hours, amniotic fluid contained 36.4% of the fetal plasma concentration. Fetal tissue concentrations varied between 5.0% and 14.0% of the maternal concentration.Variable plasma and/or tissue concentrations of taxanes, carboplatin, and trastuzumab were encountered in the fetal compartment. These data are important when cancer treatment is considered during pregnancy and underline the need for long-term follow-up of children after prenatal exposure to these cytotoxic agents. [ABSTRACT FROM AUTHOR]- Published
- 2010
- Full Text
- View/download PDF
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