Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,710 questions · 14,842 findings · 1,394 reviews

No studies found 2,880 · 19.4%GRADE not reported 1,413 · 9.5%Very low 3,103 · 20.9%Low 3,870 · 26.1%Moderate 2,663 · 17.9%High 913 · 6.2%

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Hydroxychloroquine (HCQ) vs placebo or usual care

Negative PCR for SARS‐CoV‐2 on respiratory samples at day 14 from enrolmentd · adults with mild to severe COVID‐19

Hydroxychloroquine (HCQ) showed no clear difference in negative PCR for SARS‐CoV‐2 on respiratory samples at day 14 from… compared with standard care or placebo (low certainty).

1 finding from 1 review

Hydroxychloroquine (HCQ) vs placebo or usual care

Participants with prolongation of QT‐interval on ECG · adults with mild to severe COVID‐19

It is very uncertain whether hydroxychloroquine (HCQ) changes participants with prolongation of QT‐interval on ECG compared with standard care or placebo (very low certainty).

1 finding from 1 review

Hydroxychloroquine (HCQ) vs placebo

Development of confirmed COVID‐19 at 14 days from enrolment · people who have been exposed to SARS‐CoV‐2

It is very uncertain whether hydroxychloroquine (HCQ) changes development of confirmed COVID‐19 at 14 days from enrolment compared with placebo (very low certainty).

1 finding from 1 review

Siponimod vs placebo

Relapse · people with multiple sclerosis

It is very uncertain whether siponimod changes number of participants with relapses at 6 months compared with placebo (very low certainty).

1 finding from 1 review

Siponimod vs placebo

Disability worsening · people with multiple sclerosis

Siponimod may leads to lower participants with disability worsening at 6 months compared with placebo (low certainty).

1 finding from 1 review

Siponimod vs placebo

Withdrawals due to adverse events · people with multiple sclerosis

Siponimod showed no clear difference in number of participants who withdrew due to AEs at 6 months compared with placebo (low certainty).

1 finding from 1 review

Siponimod vs placebo

Annualised relapse rate · people with multiple sclerosis

Siponimod may leads to lower annualised relapse rate compared with placebo (low certainty).

1 finding from 1 review

Siponimod vs placebo

Mean number of gadolinium‐enhancing lesions on T1‐weighted brain MRI image at 6 months · people with multiple sclerosis

It is very uncertain whether siponimod changes mean number of gadolinium‐enhancing lesions on T1‐weighted brain MRI… compared with placebo (very low certainty).

1 finding from 1 review

Siponimod vs placebo

Mean number of new lesions or enlarged pre‐existing lesions on T2‐weighted brain MRI images at 6 months · people with multiple sclerosis

Siponimod may leads to lower mean number of new lesions or enlarged pre‐existing lesions on… compared with placebo (low certainty).

1 finding from 1 review

Siponimod vs placebo

SAEs · people with multiple sclerosis

Siponimod showed no clear difference in number of participants with at least one SAE at 6 months compared with placebo (low certainty).

1 finding from 1 review