Phase II clinical trial of induction chemotherapy with fixed dose rate gemcitabine and cisplatin followed by concurrent chemoradiotherapy with capecitabine for locally advanced pancreatic cancer
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5-FU-based concurrent chemoradiotherapy (CRT) has been the mainstay of treatment for locally advanced pancreatic cancer (LAPC) for the past decades, but the prognosis remains dismal.
Patients with pathologically confirmed LAPC of the pancreas, an ECOG PS of 0–2 and no prior chemo- or radiotherapy were eligible. The treatment consisted of induction (IND) chemotherapy with a fixed dose rate gemcitabine 1,000 mg/m² on days 1 and 8 and CDDP 60 mg/m² on day 1 every 3 weeks for 3 cycles. Subsequently, the patients without progression received CRT of 55.8 Gy/31 fractions with capecitabine 650 mg/m² twice daily. Gemcitabine was given for 3 cycles after CRT. The primary endpoint was time to progression.
Thirty-seven patients with LAPC were enrolled. Median age was 55 years, there were 20 males and 17 females, and ECOG PS was 0 in 6 and 1 in 31. Three patients (9.7 %) achieved partial responses after IND chemotherapy. Twenty-five patients received CRT with a mean radiation dose of 54.0 Gy, with one additional patient achieving a partial response. The median time to progression was 7.2 months (95 % CI, 4.4–10), and the median overall survival was 16.8 months (95 % CI, 12.9–20.7). The grade 3/4 toxicities included neutropenia (29 %/6.5 %), thrombocytopenia (3.2 %/0 %) and anemia (9.7 %/0 %) during the IND phase and grade 3 neutropenia and diarrhea occurring in one and two patients during CRT phase.
IND chemotherapy with gemcitabine and cisplatin followed by CRT with capecitabine and maintenance gemcitabine was well tolerated and exhibited promising efficacy for the treatment of LAPC.
KeywordsInduction chemotherapy Pancreatic cancer Chemoradiotherapy Gemcitabine
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