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292 Chapter 6: Breast Cancer<br />

Table 1. Levels of scientific evidence for therapeutic interventions<br />

Evidence Description<br />

Level V Case series<br />

Level IV Formal comparison with historic controls<br />

Level III Formal comparison with nonr<strong>and</strong>omized contemporaneous controls<br />

Level II R<strong>and</strong>omized controlled trials that are too small<br />

Level I R<strong>and</strong>omized controlled trials that are big enough <strong>and</strong> meta-analyses<br />

disease was allowed. Adjuvant chemotherapy, if any, had to be at least 6 months<br />

before metastatic disease. Patients were excluded if they had exposure to taxanes.<br />

Karnofsky performance status was >60%, <strong>and</strong> cardiopulmonary <strong>and</strong><br />

hematopoietic functions were normal. When patients entered the study, met all<br />

eligibility criteria, <strong>and</strong> signed the informed consent form, they received the initial<br />

IDC consisting of 5-fluorouracil (5-FU) 750 mg/m 2<br />

body surface area (BSA),<br />

epirubicin 100 mg/m 2<br />

BSA, cyclophosphamide 750 mg/m 2<br />

BSA, all delivered on<br />

day 1 as intravenous infusion. Starting on day 2, G-CSF (10 pg/kg subcuta-<br />

neously) was administered daily for ~2 weeks until the total white <strong>blood</strong> cell<br />

(WBC) count reached 2.5/nL. On that day, st<strong>and</strong>ard apheresis procedure (AP) was<br />

performed using a double lumen catheter connected to a Baxter CS3000+. The<br />

<strong>blood</strong> flow on average was 70 mL/min to a <strong>blood</strong> volume of 10 L. Our target was<br />

to collect at least 5X10 8<br />

2X10 6<br />

CD34 +<br />

cells/kg. 9<br />

mononucleated cells per kilogram body weight <strong>and</strong><br />

After the first cycle of IDC, the patients obtained a further<br />

two to three cycles of chemotherapy consisting of 5-FU 600 mg/m 2<br />

BSA,<br />

epirubicin 60 mg/m 2<br />

BSA, cyclophosphamide 600 mg/m 2<br />

BSA, all administered<br />

intravenously. The treatment was delivered every 3 weeks if ANC was >1.5/nL<br />

<strong>and</strong> platelets >100/nL. After IDC, all patients were restaged with a physical<br />

examination, imaging studies, <strong>and</strong> <strong>blood</strong> work. Only patients who did not progress<br />

on IDC <strong>and</strong> did not experience severe toxicity <strong>and</strong>/or organ damage proceeded to<br />

HDCT. HDCT consisted of cyclophosphamide 6 g/m 2<br />

intravenously delivered on<br />

3 consecutive days; MXT 70 mg/m 2<br />

intravenously delivered on the same 3<br />

consecutive days. On day 4, the paclitaxel dose starting at 250 mg/m 2<br />

delivered as a 3-hour infusion. The dose was increased by 50 mg/ m 2<br />

+ XL if three<br />

or more patients did not experience DCT. Usual premedication, including<br />

antiemetics <strong>and</strong> dexamethasone, was delivered on each day. After 24^18 hours of<br />

rest, the ABSC were reinfused <strong>and</strong> rhG-CSF was administered at the dose of 5<br />

pg/kg daily until hematologic recovery (ANC >1.5/nL for 3 consecutive days).<br />

The ABSC were cryopreserved in 10% DMSO as previously described. 9<br />

The four<br />

days of chemotherapy were delivered in the hospital. The patients were usually<br />

discharged on the day after HDCT just before the reinfusion of the autograft. 3<br />

was

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