Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

383 questions · 397 findings · 37 reviews

No studies found 59 · 14.9%GRADE not reported 11 · 2.8%Very low 70 · 17.6%Low 86 · 21.7%Moderate 110 · 27.7%High 61 · 15.4%

EGFR tyrosine kinase inhibitor (TKI) plus chemotherapy vs chemotherapy alone

Toxicity: cardiac toxicity (any grade) · treatment of relapsed epithelial ovarian cancer

EGFR tyrosine kinase inhibitor (TKI) plus chemotherapy showed no clear difference in toxicity: cardiac toxicity (any grade) compared with chemotherapy alone (low certainty).

1 finding from 1 review

Apatinib plus chemotherapy or chemotherapy/brachytherapy vs chemotherapy or chemotherapy/brachytherapy

Overall survival · women with recurrent or FIGO stage IVB cervical cancer

Apatinib plus chemotherapy or chemotherapy/brachytherapy showed no clear difference in overall survival compared with chemotherapy or chemotherapy/brachytherapy (low certainty).

1 finding from 1 review

Apatinib plus chemotherapy or chemotherapy/brachytherapy vs chemotherapy or chemotherapy/brachytherapy

Specific adverse events: gastrointestinal perforations or fistulae ‐ not reported · women with recurrent or FIGO stage IVB cervical cancer

The review found no eligible studies for this question.

1 finding from 1 review

Apatinib plus chemotherapy or chemotherapy/brachytherapy vs chemotherapy or chemotherapy/brachytherapy

Specific adverse events: thromboembolic events ‐ not reported · women with recurrent or FIGO stage IVB cervical cancer

The review found no eligible studies for this question.

1 finding from 1 review

Apatinib plus chemotherapy or chemotherapy/brachytherapy vs chemotherapy or chemotherapy/brachytherapy

Adverse events: hypertension · women with recurrent or FIGO stage IVB cervical cancer

Apatinib plus chemotherapy or chemotherapy/brachytherapy may leads to higher specific adverse events: hypertension compared with chemotherapy or chemotherapy/brachytherapy (low certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Overall survival among all patients · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy leads to lower overall survival among all patients compared with primary surgery (high certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Presence of tumor‐free resection margin · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy showed no clear difference in presence of tumor‐free resection margin compared with primary surgery (moderate certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Tumor stage at resection (T0 to T2 vs T3 to T4) · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy probably leads to higher tumor stage at resection (T0 to T2 vs T3 to T4) compared with primary surgery (moderate certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Tumor stage at resection (N0 vs N+) · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy may leads to higher tumor stage at resection (N0 vs N+) compared with primary surgery (low certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Disease-free survival · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy showed no clear difference in disease‐free survival (landmark time 6 months) compared with primary surgery (high certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Overall survival by type of data ‐ Individual patient data · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy leads to lower overall survival by type of data ‐ Individual patient data compared with primary surgery (high certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Overall survival by type of data ‐ Aggregated data · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy probably leads to lower overall survival by type of data ‐ Aggregated data compared with primary surgery (moderate certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Overall survival by tumor site ‐ Esophagus · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy showed no clear difference in overall survival by tumor site ‐ Esophagus compared with primary surgery (high certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Overall survival by tumor site ‐ GE junction · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy leads to lower overall survival by tumor site ‐ GE junction compared with primary surgery (high certainty).

1 finding from 1 review

Perioperative chemotherapy vs primary surgery

Overall survival by tumor site ‐ Stomach · resectable adenocarcinoma of the stomach, gastroesophageal junction, and lower esophagus

Perioperative chemotherapy showed no clear difference in overall survival by tumor site ‐ Stomach compared with primary surgery (high certainty).

1 finding from 1 review