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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

1,521 questions in 132 reviews · Hepato-Biliary

current versions
No studies 303 · 19.9%Ungraded 39 · 2.6%Very low 876 · 57.6%Low 216 · 14.2%Moderate 65 · 4.3%High 22 · 1.4%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Gemcitabine vs vandetanib
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs vandetanib
Grade 1 ‐ 4 anaemia · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 7.38 [0.94, 58.05]1 study · 115 participantsVery low
Gemcitabine plus cisplatin vs S‐1 plus cisplatin
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.76 [0.58, 0.98]1 study · 96 participantsVery low
Gemcitabine plus cisplatin vs S‐1 plus cisplatin
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus cisplatin vs S‐1 plus cisplatin
Health‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus cisplatin vs S‐1 plus cisplatin
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.82 [0.37, 1.82]1 study · 88 participantsVery low
Gemcitabine plus cisplatin vs S‐1 plus cisplatin
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus cisplatin vs S‐1 plus cisplatin
Grade 1 ‐ 4 anaemia · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 11.27 [4.41, 28.83]1 study · 96 participantsVery low
Gemcitabine plus S‐1 vs S‐1
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.61 [0.33, 1.13]2 studies · 151 participantsVery low
Gemcitabine plus vandetanib vs vandetanib
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.95 [0.52, 1.74]1 study · 117 participantsVery low
Gemcitabine plus S‐1 vs S‐1
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 1.05 [0.15, 7.1]1 study · 90 participantsVery low
Gemcitabine plus S‐1 vs S‐1
Health‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus S‐1 vs S‐1
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 2.46 [1.27, 4.75]2 studies · 140 participantsVery low
Gemcitabine plus S‐1 vs S‐1
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus S‐1 vs S‐1
Grade 1 ‐ 4 anaemia · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 1.26 [1, 1.59]2 studies · 151 participantsVery low
Gemcitabine plus oxaliplatin vs best supportive care
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.78 [0.53, 1.15]1 study · 40 participantsVery low
Gemcitabine plus oxaliplatin vs best supportive care
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs best supportive care
Health‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs best supportive care
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 34 [2.11, 547.54]1 study · 40 participantsVery low
Gemcitabine plus oxaliplatin vs best supportive care
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus vandetanib vs vandetanib
Health‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus folinic acid
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.81 [0.55, 1.2]1 study · 41 participantsVery low
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus folinic acid
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus folinic acid
Helath‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus folinic acid
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 2.15 [0.64, 7.29]1 study · 41 participantsVery low
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus folinic acid
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus cisplatin plus radiotherapy
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.56 [0.21, 1.52]1 study · 34 participantsVery low
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus cisplatin plus radiotherapy
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 1.5 [0.66, 3.39]1 study · 34 participantsVery low
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus cisplatin plus radiotherapy
Health‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus cisplatin plus radiotherapy
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus oxaliplatin vs 5‐fluorouracil plus cisplatin plus radiotherapy
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus vandetanib vs vandetanib
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 5.4 [1.25, 23.29]1 study · 113 participantsVery low
Gemcitabine plus mitomycin C vs capecitabine plus mitomycin C
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 1.14 [0.89, 1.48]1 study · 51 participantsVery low
Gemcitabine plus mitomycin C vs capecitabine plus mitomycin C
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus mitomycin C vs capecitabine plus mitomycin C
Health‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus mitomycin C vs capecitabine plus mitomycin C
Overall response rate · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.65 [0.25, 1.72]1 study · 51 participantsVery low
Gemcitabine plus mitomycin C vs capecitabine plus mitomycin C
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus mitomycin C vs capecitabine plus mitomycin C
Grade 1 ‐ 4 thrombocytopenia · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.56 [0.29, 1.06]1 study · 47 participantsVery low
Gemcitabine plus vandetanib vs vandetanib
Time to progression of the tumour · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine plus vandetanib vs vandetanib
Grade 1 ‐ 4 anaemia · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 7.12 [0.9, 56.08]1 study · 117 participantsVery low
Gemcitabine vs vandetanib
All‐cause mortality at 1 year · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
Gemcitabine vs vandetanib
Serious adverse events · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
RR 0.79 [0.41, 1.52]1 study · 115 participantsVery low
Gemcitabine vs vandetanib
Helath‐related quality of life · people with advanced biliary tract carcinomas
Gemcitabine‐based chemotherapy for advanced biliary tract carcinomas (2018) · Cochrane
no estimate extractedNRNo studies
L‐ornithine L aspartate vs placebo or no intervention
Mortality
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
RR 0.42 [0.24, 0.72]19 studies · 1489 participantsVery low
L‐ornithine L‐aspartate vs lactulose
Non‐serious adverse events assessed using ICH‐GCP · people with cirrhosis who had minimal or overt hepatic encephalopathy or who were at risk for developing hepatic…
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
RR 0.05 [0.01, 0.18]2 studies · 292 participantsVery low
L‐ornithine L‐aspartate vs probiotic
Mortality · people with cirrhosis who had minimal or overt hepatic encephalopathy or who were at risk for developing hepatic…
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
RR 1.01 [0.11, 9.51]2 studies · 143 participantsVery low
L‐ornithine L‐aspartate vs probiotic
Hepatic encephalopathy assessed based on neurocognitive manifestations · people with cirrhosis who had minimal or overt hepatic encephalopathy or who were at risk for developing hepatic…
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
RR 0.71 [0.56, 0.9]2 studies · 143 participantsVery low
L‐ornithine L‐aspartate vs probiotic
Serious adverse events assessed using ICH‐GCP · people with cirrhosis who had minimal or overt hepatic encephalopathy or who were at risk for developing hepatic…
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
RR 1.07 [0.23, 4.88]2 studies · 143 participantsVery low
L‐ornithine L‐aspartate vs probiotic
Quality of life assessed using questionnaires · people with cirrhosis who had minimal or overt hepatic encephalopathy or who were at risk for developing hepatic…
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
no estimate extractedNRNo studies
L‐ornithine L‐aspartate vs probiotic
Non‐serious adverse events assessed using ICH‐GCP · people with cirrhosis who had minimal or overt hepatic encephalopathy or who were at risk for developing hepatic…
L‐ornithine L‐aspartate for prevention and treatment of hepatic encephalopathy in people with cirrhosis (2018) · Cochrane
no estimate extractedNRNo studies