Summary
Aiming at a high complete remission rate with an intensive induction regimen, 27 patients with advanced breast cancer were given three cycles of VAC chemotherapy consisting of vinde-sine 3 mg/m2 i.v. on days 1 and 12, adriamycin 40 mg/m2 i.v. on days 1 and 12, and cyclophosphamide 200 mg/m2 p.o. on days 3–6 and 14–17 together with medroxyprogesterone acetate (MPA) 1,500 mg p.o. daily during the induction phase and 1,000 mg p.o. thereafter until relapse. These VAC double cycles were repeated twice with 3-weekly intervals for a total induction period of 15 weeks. In responders, including no change, the chemotherapy was discontinued thereafter, and the patients were observed until relapse with a maintenance therapy of MPA 1,000 mg p.o. daily.
A complete remission (CR) was achieved in 8 (29.6%) and a partial remission (PR) in 13 (48.2%) of the 27 patients (CR + PR 77.8%). A no change (NC) status was found in 6 patients (22.2%). There were no nonresponders. The median duration of the CR was 20 (5–42) months with two patients still in CR at 33 and 36 months, of the PR 8.3 (4–13.5) months, and of the NC 6.7 (2–13) months. The treatment was tolerated without life-threatening toxicity or interval prolongation by all patients. No dose-limiting cardiac toxicity was observed in these patients regularly controlled by left ventricular ejection fraction (LVEF). The high response rate of this intensive induction regimen warrants further investigation. Complete remission was achieved only in patients without previous chemotherapy, with marked tumor regression after the first chemotherapy cycle and when there was no extensive bone involvement.
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Abbreviations
- ADR:
-
Adriamycin
- CK:
-
Creatinine kinase
- CK-MB:
-
Cardiac muscle specific isoenzymes
- CMF:
-
Cyclophosphamide, methotrexate, 5-FU
- CNS:
-
Central nervous system
- CR:
-
Complete remission
- CYC:
-
Cyclophosphamide
- DFI:
-
Disease-free interval
- ECG:
-
Electrocardiogram
- LMF:
-
Chlorambucil, methotrexate, 5-FU
- LVEF:
-
Left ventricular ejection fraction
- MPA:
-
Medroxyprogesterone acetate
- NC:
-
No change
- PD:
-
Progressive disease
- PR:
-
Partial remission
- VAC:
-
Vincristine, adriamycin, cyclophosphamide
- VEC:
-
Vincristine, epirubicin, cyclophosphamide
- VDS:
-
Vindesine
- WBC:
-
White blood cell count
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Wander, H.E., Nagel, G.A., Luig, H. et al. Intensive short-term chemotherapy in patients with advanced breast cancer. Klin Wochenschr 65, 317–323 (1987). https://doi.org/10.1007/BF01745385
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DOI: https://doi.org/10.1007/BF01745385