What do systematic reviews say?

Fluoxetine vs placebo

The review found no eligible studies for this question.

• Fluoxetine for adults who are overweight or obese 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings: insulin detemir vs insulin glargine

The review found no eligible studies for this question.

• (Ultra‐)long‐acting insulin analogues for people with type 1 diabetes mellitus 2021 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings: pioglitazone monotherapy vs intensive behaviour‐changing intervention

The review found no eligible studies for this question.

• Pioglitazone for prevention or delay of type 2 diabetes mellitus and its associated complications in people at risk… 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings: pioglitazone monotherapy vs placebo

The review found no eligible studies for this question.

• Pioglitazone for prevention or delay of type 2 diabetes mellitus and its associated complications in people at risk… 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings: pioglitazone monotherapy vs no intervention

The review found no eligible studies for this question.

• Pioglitazone for prevention or delay of type 2 diabetes mellitus and its associated complications in people at risk… 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings for resveratrol plus oral anti‐diabetic drugs vs placebo plus oral anti‐diabetic drugs

The review found no eligible studies for this question.

• Resveratrol for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Summary of findings: insulin detemir vs NPH insulin

• (Ultra‐)long‐acting insulin analogues for people with type 1 diabetes mellitus 2021 · Cochrane Headline outcomes only
  no estimate extracted
  3 studies · 870 participants
  Low

Summary of findings: insulin degludec vs insulin detemir

• (Ultra‐)long‐acting insulin analogues for people with type 1 diabetes mellitus 2021 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 454 participants
  Low

Summary of findings: insulin degludec vs insulin glargine

• (Ultra‐)long‐acting insulin analogues for people with type 1 diabetes mellitus 2021 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 1042 participants
  Very low

Summary of findings table for metformin plus intensive diet and exercise vs intensive diet and exercise

The review found no eligible studies for this question.

• Metformin for prevention or delay of type 2 diabetes mellitus and its associated complications in persons at increased… 2019 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Insulin glargine vs NPH insulin

• (Ultra‐)long‐acting insulin analogues for people with type 1 diabetes mellitus 2021 · Cochrane Headline outcomes only
  no estimate extracted
  4 studies · 1013 participants
  Low

Metformin vs sulphonylureas

The review found no eligible studies for this question.

• Metformin monotherapy for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Metformin vs thiazolidinediones

The review found no eligible studies for this question.

• Metformin monotherapy for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Metformin vs dipeptidyl‐peptidase 4 inhibitors

The review found no eligible studies for this question.

• Metformin monotherapy for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Metformin vs glucagon like peptide‐1 analogues

The review found no eligible studies for this question.

• Metformin monotherapy for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Metformin vs meglitinides

The review found no eligible studies for this question.

• Metformin monotherapy for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  Studies not reported
  No studies found

Metformin vs insulin

• Metformin monotherapy for adults with type 2 diabetes mellitus 2020 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 91 participants
  Very low