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426 Chapter 7: Solid Tumors<br />

Thiotepa, TEPA, <strong>and</strong> 2-dechloroethyl cyclophosphamide assays<br />

ThioTEPA, TEPA, cyclophosphamide <strong>and</strong> 2-dechloroethyl cyclophosphamide<br />

levels in plasma were determined using capillary gas chromatography with<br />

nitrogen/phosphorous selective detection after liquid-liquid extraction of the<br />

samples with chloroform. 12<br />

RESULTS<br />

Feasibility of scheduled treatment<br />

A total of 41 patients were entered on the protocol. Pertinent patient characteristics<br />

are given in Table 1. Not all patients proceeded to high-dose therapy: seven<br />

patients had progressive disease or no sign of response at all to FE 12QC <strong>and</strong> were<br />

taken off protocol since high-dose therapy was not considered to be in their best<br />

Table 1. Characteristics of the 41 patients on study<br />

Age (years) 44 (27-55)<br />

Hormone responsiveness<br />

ER negative<br />

ER +, failed FLHT1<br />

ER +, failed SLHT2<br />

ER unknown, failed FLHT<br />

Number of sites of disease<br />

1 site<br />

2 sites<br />

3 sites<br />

4 or more sites<br />

Sites of disease<br />

Lymph nodes<br />

Bone<br />

Liver<br />

Lung<br />

Prior therapy<br />

Radiation therapy<br />

28<br />

7<br />

5<br />

11<br />

20<br />

6<br />

4<br />

23<br />

18<br />

11<br />

11<br />

Adjuvant 20<br />

For advanced disease<br />

Chemotherapy<br />

Adjuvant 8<br />

For advanced disease<br />

FLHT, first-line hormonal therapy; SLHT, second-line hormonal therapy.<br />

2<br />

13

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