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Evidence found and GRADE certainty

2,261 questions · 2,280 findings · 114 reviews · Cystic Fibrosis and Genetic Disorders

No studies found 856 · 37.5%GRADE not reported 58 · 2.5%Very low 550 · 24.1%Low 502 · 22%Moderate 271 · 11.9%High 43 · 1.9%

Omega‐3 vs placebo

Adverse effects (any adverse effect) · sickle cell disease

It is very uncertain whether omega‐3 changes adverse effects (any adverse effect) compared with placebo (very low certainty).

1 finding from 1 review

Vitamin C 1400 mg plus vitamin E 800 mg vs placebo

Acute chest syndrome ( · adults with sickle cell disease (adults with homozygous SCA or sickle beta 0 thalassaemia SCD)

It is very uncertain whether vitamin C 1400 mg plus vitamin E 800 mg changes frequency of sickle cell‐related complications: acute chest syndrome compared with placebo (very low certainty).

1 finding from 1 review

Zinc vs placebo

Frequency of crisis · people with sickle cell disease

Zinc showed no clear difference in frequency of crisis compared with placebo (low certainty).

1 finding from 1 review

Summary of findings table ‐ Fitusiran prophylaxis vs on‐demand therapy

Proportion with zero bleeds · people with inhibitors

Summary of findings table ‐ Fitusiran prophylaxis probably leads to higher proportion with zero bleeds compared with on‐demand therapy (moderate certainty).

1 finding from 1 review