Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,476 questions · 1,535 findings · 101 reviews

No studies found 233 · 15.2%GRADE not reported 332 · 21.6%Very low 209 · 13.6%Low 343 · 22.3%Moderate 279 · 18.2%High 139 · 9.1%

Chemotherapy vs placebo, best supportive care (BSC) or no treatment

Any adverse events · advanced gastric and oesophago‐gastric junction adenocarcinoma

Chemotherapy showed no clear difference in any adverse events compared with placebo, best supportive care (BSC) or no treatment (high certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Mortality (calculated instead of overall survival) · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in mortality (instead of overall survival) compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Mortality, relapse and progresses (instead of disease‐ or relapse‐free survival) · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in mortality, relapse and progresses (instead of disease‐ or… compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

On‐study mortality · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in on‐study mortality compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Severe adverse effects (grade 3+): Infection · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

ATRA in addition to chemotherapy showed no clear difference in infection grade III/IV compared with chemotherapy only (moderate certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Grade 3 to 4 diarrhoea · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

It is very uncertain whether ATRA in addition to chemotherapy changes diarrhoea grade III/IV compared with chemotherapy only (very low certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Toxicity: grade 3 or 4 nausea ± vomiting · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

It is very uncertain whether ATRA in addition to chemotherapy changes nausea/vomiting grade III/IV compared with chemotherapy only (very low certainty).

1 finding from 1 review

ATRA in addition to chemotherapy vs chemotherapy alone

Cardiac toxicity grade III/IV · adults with acute myeloid leukaemia (AML) (non‐acute promyelocytic leukaemia (APL))

It is very uncertain whether ATRA in addition to chemotherapy changes cardiac toxicity grade III/IV compared with chemotherapy only (very low certainty).

1 finding from 1 review

Chemotherapy plus lower‐dose radiation vs same chemotherapy plus higher‐dose radiation

Secondary malignant neoplasms · Patients with untreated Hodgkin lymphoma (early stages)

Chemotherapy plus lower‐dose radiation showed no clear difference in secondary malignant neoplasms compared with same chemotherapy plus higher‐dose radiation (low certainty).

1 finding from 1 review