Initial systemic chemotherapy ( 6 months ) with a combination regimen is recommended for most patients ( for some patients radiation therapy may be offered up front ) with Eastern Cooperative Oncology Group performance status 0 or 1 and a favorable comorbidity profile .
There is no clear evidence to support one regimen over another .
PURPOSE To provide evidence -based recommendations to oncologists and others for treatment of patients with locally advanced , unresectable pancreatic cancer .
Gemcitabine-based or capecitabine-based chemoradiotherapy for locally advanced pancreatic cancer (SCALOP): a multicentre, randomised, phase 2 trial
Summary Background In the UK , chemotherapy is the st and ard treatment for inoperable , locally advanced , non-metastatic pancreatic cancer .  Chemoradiotherapy is also an acceptable treatment option , for which gemcitabine , fluorouracil , or capecitabine can be used as concurrent chemotherapy agents . We aim ed to assess the activity , safety , and feasibility of both gemcitabine-based and capecitabine-based chemoradiotherapy after induction chemotherapy for patients with locally advanced pancreatic cancer . Methods In this open-label , r and omised , two-arm , phase 2 trial , patients aged 18 years or older with histologically proven , locally advanced pancreatic cancer ( with a tumour diameter of 7 cm or less ) were recruited from 28 UK centres between Dec 24 , 2009 and Oct 25 , 2011 . After 12 weeks of induction gemcitabine and capecitabine chemotherapy ( three cycles of gemcitabine [ 1000 mg/m2 on days 1 , 8 , 15 of a 28-day cycle ] and capecitabine [ 830 mg/m2 twice daily on days 1–21 of a 28-day cycle ] ) , patients with stable or responding disease , tumour diameter of 6 cm or less , and WHO performance status 0–1 were r and omly assigned to receive a further cycle of gemcitabine and capecitabine chemotherapy followed by either gemcitabine ( 300 mg/m2 once per week ) or capecitabine ( 830 mg/m2 twice daily , Monday to Friday only ) , both in combination with radiation ( 50·4 Gy in 28 fractions ) . R and omisation ( 1:1 ) was done via a central computerised system and used stratified minimisation . The primary endpoint was 9-month progression-free survival , analysed by intention to treat including only those patients with valid CT assessment s. This trial is registered with IS RCT N , number 96169987 . Findings 114 patients were registered and 74 were r and omly allocated ( 38 to the gemcitabine group and 36 to the capecitabine group ) . After 9 months , 22 of 35 assessable patients ( 62·9 % , 80 % CI 50·6–73·9 ) in the capecitabine group and 18 of 35 assessable patients ( 51·4 % , 39·4–63·4 ) in the gemcitabine group had not progressed . Median overall survival was 15·2 months ( 95 % CI 13·9–19·2 ) in the capecitabine group and 13·4 months ( 95 % CI 11·0–15·7 ) in the gemcitabine group ( adjusted hazard ratio [ HR ] 0·39 , 95 % CI 0·18–0·81 ; p=0·012 ) . 12-month overall survival was 79·2 % ( 95 % CI 61·1–89·5 ) in the capecitabine group and 64·2 ( 95 % CI 46·4–77·5 ) in the gemcitabine group . Median progression-free survival was 12·0 months ( 95 % CI 10·2–14·6 ) in the capecitabine group and 10·4 months ( 95 % CI 8·9–12·5 ) in the gemcitabine group ( adjusted HR 0·60 , 95 % CI 0·32–1·12 ; p=0·11 ) . Eight patients in the capecitabine group had an objective response at 26 weeks , as did seven in the gemcitabine group . More patients in the gemcitabine group than in the capecitabine group had grade 3–4 haematological toxic effects ( seven [ 18 % ] vs none , p=0·008 ) and non-haematological toxic effects ( ten [ 26 % ] vs four [ 12 % ] , p=0·12 ) during chemoradiation treatment ; the most frequent events were leucopenia , neutropenia , and fatigue . Two patients in the capecitabine group progressed during the fourth cycle of induction chemotherapy . Of the 34 patients in the capecitabine group who received chemoradiotherapy , 25 ( 74 % ) received the full protocol dose of radiotherapy , compared with 26 ( 68 % ) of 38 patients in the gemcitabine group . Quality -of-life scores were not significantly different between the treatment groups . Interpretation Our results suggest that a capecitabine-based regimen might be preferable to a gemcitabine-based regimen in the context of consolidation chemoradiotherapy after a course of induction chemotherapy for locally advanced pancreatic cancer . However , these findings should be interpreted with caution because the difference in the primary endpoint was non-significant and the number of patients in the trial was small . Funding Cancer Research UK
Initial systemic chemotherapy ( 6 months ) with a combination regimen is recommended for most patients ( for some patients radiation therapy may be offered up front ) with Eastern Cooperative Oncology Group performance status 0 or 1 and a favorable comorbidity profile .
There is no clear evidence to support one regimen over another .
PURPOSE To provide evidence -based recommendations to oncologists and others for treatment of patients with locally advanced , unresectable pancreatic cancer .