Cetuximab plus chronomodulated irinotecan, 5-fluorouracil, leucovorin and oxaliplatin as neoadjuvant chemotherapy in colorectal liver metastases: POCHER trial.
BACKGROUND
We assessed the effectiveness of cetuximab plus chronomodulated irinotecan, 5-fluorouracil (5-FU), leucovorin (FA) and oxaliplatin (L-OHP) (chrono-IFLO) administered as neoadjuvant chemotherapy to increase the resectability of colorectal liver metastases.


METHODS
This was a phase II prospective trial with rate of liver metastases resection as primary end point. Forty-three patients with unresectable metastases were enroled: 9 with metastases >5 cm; 29 with multinodular (>4) disease; 1 with hilar location; 4 with extrahepatic lung disease. Treatment consisted of cetuximab at day 1 plus chronomodulated irinotecan 5-FU, FA and L-OHP for 2-6 days every 2 weeks. After the first 17 patients, doses were reduced for irinotecan to 110 mg m⁻², 5-FU to 550 mg m⁻² per day and L-OHP to 15 mg m⁻² per day.


RESULTS
Macroscopically complete resections were performed in 26 out of 43 patients (60%) after a median of 6 (range 3-15) cycles. Partial response was noticed in 34 patients (79%). Median overall survival was 37 months (95% CI: 21-53 months), with a 2-year survival of 68% in the entire population, 80.6% in resected patients and 47.1% in unresected patients (P=0.01). Grade 3/4 diarrhoea occurred in 93% and 36% of patients before and after dose reduction.


CONCLUSIONS
Cetuximab plus chrono-IFLO achieved 60% complete resectability of colorectal liver metastases.
Garufi
C
C
Department of Medical Oncology, Regina Elena Cancer Institute, Rome, Italy. carlo.garufi@fastwebnet.it
Torsello
A
A
Tumolo
S
S
Ettorre
G M
GM
Zeuli
M
M
Campanella
C
C
Vennarecci
G
G
Mottolese
M
M
Sperduti
I
I
Cognetti
F
F
D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal / Q000009:adverse effects / Q000627:therapeutic use*; D061067:Antibodies, Monoclonal, Humanized; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000009:adverse effects / Q000627:therapeutic use*; D002166:Camptothecin / Q000008:administration & dosage / Q000031:analogs & derivatives; D000068818:Cetuximab; D015179:Colorectal Neoplasms / Q000188:drug therapy* / Q000401:mortality / Q000556:secondary* / Q000601:surgery; D003967:Diarrhea / Q000139:chemically induced; D018572:Disease-Free Survival; D066246:ErbB Receptors / Q000378:metabolism; D005260:Female; D005472:Fluorouracil / Q000008:administration & dosage; D006498:Hepatectomy; D006801:Humans; D000077146:Irinotecan; D002955:Leucovorin / Q000008:administration & dosage; D008113:Liver Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D020360:Neoadjuvant Therapy / Q000379:methods*; D009944:Organoplatinum Compounds / Q000008:administration & dosage; D000077150:Oxaliplatin; D012107:Research Design; D015996:Survival Rate; D014057:Tomography, X-Ray Computed
D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D009944:Organoplatinum Compounds; D000077150:Oxaliplatin; D000077146:Irinotecan; D066246:ErbB Receptors; D000068818:Cetuximab; D002955:Leucovorin; D005472:Fluorouracil; D002166:Camptothecin