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LONG TERM FOLLOW UP OF POOR PROGNOSIS STAGE IV BREAST<br />

CANCER PATIENTS TREATED WITH TWO COURSES OF HIGH-DOSE<br />

CHEMOTHERAPY AND BONE MARROW SUPPORT<br />

Frank Dunphy, Gary Spitzer, Jonathan Yau, Susan Huan, Jorge Spinolo,<br />

Sundar Jagannath, Ralph Wallerstein, Karel Dicke, Aman Buzdar,<br />

Gabriel Hortobagyi<br />

From the Division of <strong>Bone</strong> <strong>Marrow</strong> <strong>Transplantation</strong>, Medical Oncology,and<br />

Hematology (FD, GS), Department of Internal Medicine, Saint Louis University<br />

Medical Center, St. Louis, MO 63110-0250; and the Department of Hematology<br />

(JY, SH, JS, SJ, RW, KD) and Breast Medical Oncology (AB, GH), The University<br />

of Texas M. D. Anderson Cancer Center, Houston, Texas 77030.<br />

Address reprint requests to:<br />

Frank Dunphy, ME)<br />

Saint Louis University Medical Center<br />

Division of <strong>Bone</strong> <strong>Marrow</strong> <strong>Transplantation</strong>,<br />

Medical Oncology, and Hematology<br />

3635 Vista Ave. at Grand Blvd.<br />

P.O. Box 15250<br />

St. Louis, MO 63110-0250<br />

INTRODUCTION<br />

Stage IV breast cancer patients who are estrogen receptor-negative (ER-) or<br />

estrogen receptor-positive (ER+) "refractory" to hormonal manipulation represent<br />

a poor prognosis subgroup which behaves in an aggressive manner with a<br />

short survival and few protracted disease-free survivors. With conventional chemotherapy<br />

the median survival of this subgroup is 15-18 months, with a 10%<br />

three-year progression-free and overall survival. 0<br />

"*'<br />

We describe long term follow up data in this poor-risk subgroup of breast<br />

cancer patients. They were initially treated with conventional induction chemotherapy<br />

followed by intensificationwith two courses of high-dose cyclophosphamide<br />

4.5-6g/m 2<br />

/course; etoposide 750-1500mg/m 2<br />

/course; cisplatin 120-<br />

180mg/m 2<br />

/course. We include data of response rates, duration of response, survival,<br />

and toxicity.<br />

Patient Population and Treatment Plan<br />

Eighty stage IV ER- or ER+ "primary hormonal refractory" breast cancer<br />

patients were treated between May, 1985 and August, 1990. All patients were in<br />

first relapse. Patients were initially treated for stage IV disease with conventional<br />

combination chemotherapy (Induction Phase) to the point of maximal response.<br />

Patients with stable or responding disease then received high-dose therapy (Intensive<br />

Phase)(Fig.l). Forty-four patients were randomized to receive marrow<br />

infusion. Thirty-six were randomized to the no-marrow arm.<br />

118 SIXTH INTERNATIONAL SYMPOSIUM ON AUTOLOGOUS BONE MARROW TRANSPLANTATION

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