This technology therefore reduces irradiation to normal tissue, while permitting dose escalation to levels not achievable with standard techniques.
Early treatment with chemotherapy and surgery prolongs survival but unacceptable drug toxicity prevents dose escalation to levels capable of reversing metastatic disease.
Surprisingly, no other patient presented haematological DLT after dose escalation to levels 2 to 5. Grade 3 and 4 non-haematological toxicities at each dose level are presented in Table 5-wrap>.
None of the six patients entered at dose level 1 experienced DLT in cycle 1, allowing escalation to dose level 2. At dose level 2, one out of the six patients experienced DLT (fever with grade 4 neutropenia and grade 3 thrombocytopenia, leading to death) in cycle 1, allowing escalation to dose level 3.
None of the three patients entered at dose level 1 experienced DLT in cycle 1, allowing escalation to dose level 2. At dose level 2, none of the first 6 patients experienced DLT in cycle 1; thus, this cohort was expanded (Table 2) to 13 patients (one patient who experienced tumour progression on day 8 of cycle 1 was not fully evaluable for safety).
However, an alternative concept is to focus on meeting low- to moderate-level needs that may then help prevent escalation to higher-level needs, with entry-level pricing of a few hundred pounds and the option to spend more on specialist modules, either for purchase or hire.
If no additional DLTs occurred, the dose escalation proceeded to level 1 (further escalation from level 1 to level 2 with the same rules).
After escalation to dose level 1, four patients were enrolled, resulting in two DLTs.
However, the research suggests that U.S. military officers generally are more reluctant to use military force than civilian officials — but more likely to favor escalation to higher levels of force once hostilities have begun.
Dose escalation to higher levels was planned providing that no patient in the cohort experienced dose-limiting toxicity (DLT).
