1984
DOI: 10.1159/000215485
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Phase-II-Studie des wasserlöslichen Nitrosoharnstoffes ACNU bei fortgeschrittenen kolorektalen Karzinomen

Abstract: 46 Patienten mit fortgeschrittenen kolorektalen Karzinomen wurden im Rahmen einer Phase-II-Studie mit dem neuen Nitrosoharnstoff ACNU [l-(2-chloroethyl)-l-nitroso-3-(4-amino-2-methyl-5-pyrirnidi-nyl)methyl-3-nitrosourea] behandelt. Bei den 43 auswertbaren Patienten lag bei 86% eine Fernmetastasierung sowie bei 14% ein inoperabler Primärtumor bzw. ein Lokalrezidiv vor. 24 Patienten wiesen ein Kolon- und 19 ein Rektumkarzinom auf. Eine zytostatische Vorbehandlung lag bei 34 Patienten (79%) vor, 11 (26%) wurden m… Show more

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“…This activity, however, was not ob served in most clinical studies [3,18]. Moreover, their use is limited by their hematologic toxicity which be comes cumulative with repeated doses [3], To overcome the disadvantages of clinically used CNUs of the first generation [HECNU]); these drugs show some anti neoplastic activity against brain tumors, lymphomas, small cell lung cancer, melanoma and neoplasms of the gastrointestinal tract [3,8,9,15,20]. Further development is directed towards increased specificity and decreased systemic toxicity by linking the active nitrosoureido-group to suited carriers, such as hor mones or peptides [2,21], A further disadvantage of presently used CNUs is the possible induction of second malignancies, which was first described in animals [11,12,23] and later in man, too [10][11][12]17].…”
Section: Introductionmentioning
confidence: 99%
“…This activity, however, was not ob served in most clinical studies [3,18]. Moreover, their use is limited by their hematologic toxicity which be comes cumulative with repeated doses [3], To overcome the disadvantages of clinically used CNUs of the first generation [HECNU]); these drugs show some anti neoplastic activity against brain tumors, lymphomas, small cell lung cancer, melanoma and neoplasms of the gastrointestinal tract [3,8,9,15,20]. Further development is directed towards increased specificity and decreased systemic toxicity by linking the active nitrosoureido-group to suited carriers, such as hor mones or peptides [2,21], A further disadvantage of presently used CNUs is the possible induction of second malignancies, which was first described in animals [11,12,23] and later in man, too [10][11][12]17].…”
Section: Introductionmentioning
confidence: 99%