TY - JOUR
T1 - Intravenous versus oral etoposide
T2 - efficacy and correlation to clinical outcome in patients with high-grade metastatic gastroenteropancreatic neuroendocrine neoplasms (WHO G3)
AU - Ali, Abir Salwa
AU - Grönberg, Malin
AU - Langer, Seppo W
AU - Ladekarl, Morten
AU - Hjortland, Geir Olav
AU - Vestermark, Lene Weber
AU - Österlund, Pia
AU - Welin, Staffan
AU - Grønbæk, Henning
AU - Knigge, Ulrich
AU - Sorbye, Halfdan
AU - Janson, Eva Tiensuu
PY - 2018/4/1
Y1 - 2018/4/1
N2 - High-grade gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs, G3) are aggressive cancers of the digestive system with poor prognosis and survival. Platinum-based chemotherapy (cisplatin/carboplatin + etoposide) is considered the first-line palliative treatment. Etoposide is frequently administered intravenously; however, oral etoposide may be used as an alternative. Concerns for oral etoposide include decreased bioavailability, inter- and intra-patient variability and patient compliance. We aimed to evaluate possible differences in progression-free survival (PFS) and overall survival (OS) in patients treated with oral etoposide compared to etoposide given as infusion. Patients (n = 236) from the Nordic NEC study were divided into three groups receiving etoposide as a long infusion (24 h, n = 170), short infusion (≤ 5 h, n = 33) or oral etoposide (n = 33) according to hospital tradition. PFS and OS were analyzed with Kaplan-Meier (log-rank), cox proportional hazard ratios and confidence intervals. No statistical differences were observed in PFS or OS when comparing patients receiving long infusion (median PFS 3.8 months, median OS 14.5 months), short infusion (PFS 5.6 months, OS 11.0 months) or oral etoposide (PFS 5.4 months, OS 11.3 months). We observed equal efficacy for the three administration routes suggesting oral etoposide may be safe and efficient in treating high-grade GEP-NEN, G3 patients scheduled for cisplatin/carboplatin + etoposide therapy.
AB - High-grade gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs, G3) are aggressive cancers of the digestive system with poor prognosis and survival. Platinum-based chemotherapy (cisplatin/carboplatin + etoposide) is considered the first-line palliative treatment. Etoposide is frequently administered intravenously; however, oral etoposide may be used as an alternative. Concerns for oral etoposide include decreased bioavailability, inter- and intra-patient variability and patient compliance. We aimed to evaluate possible differences in progression-free survival (PFS) and overall survival (OS) in patients treated with oral etoposide compared to etoposide given as infusion. Patients (n = 236) from the Nordic NEC study were divided into three groups receiving etoposide as a long infusion (24 h, n = 170), short infusion (≤ 5 h, n = 33) or oral etoposide (n = 33) according to hospital tradition. PFS and OS were analyzed with Kaplan-Meier (log-rank), cox proportional hazard ratios and confidence intervals. No statistical differences were observed in PFS or OS when comparing patients receiving long infusion (median PFS 3.8 months, median OS 14.5 months), short infusion (PFS 5.6 months, OS 11.0 months) or oral etoposide (PFS 5.4 months, OS 11.3 months). We observed equal efficacy for the three administration routes suggesting oral etoposide may be safe and efficient in treating high-grade GEP-NEN, G3 patients scheduled for cisplatin/carboplatin + etoposide therapy.
KW - Administration, Oral
KW - Adult
KW - Aged
KW - Aged, 80 and over
KW - Antineoplastic Agents, Phytogenic/administration & dosage
KW - Disease-Free Survival
KW - Etoposide/administration & dosage
KW - Female
KW - Humans
KW - Infusions, Intravenous
KW - Intestinal Neoplasms/drug therapy
KW - Kaplan-Meier Estimate
KW - Male
KW - Middle Aged
KW - Neuroendocrine Tumors/drug therapy
KW - Pancreatic Neoplasms/drug therapy
KW - Proportional Hazards Models
KW - Retrospective Studies
KW - Stomach Neoplasms/drug therapy
KW - Treatment Outcome
U2 - 10.1007/s12032-018-1103-x
DO - 10.1007/s12032-018-1103-x
M3 - Journal article
C2 - 29511910
SN - 1357-0560
VL - 35
SP - 1
EP - 7
JO - Medical Oncology
JF - Medical Oncology
IS - 4
M1 - 47
ER -