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Table 2 DERP SRs with changes in findings based on dossier evidence

From: A study of the value of requesting information from drug manufacturers for systematic reviews; 9 years of experience from the drug effectiveness review project

DERP SR

N and type of evidence*

N unpublished

Fills gaps? (N)

Contradicts other evidence?

Atypical antipsychotics

update 2

1 unique study

0

No

No

Atypical antipsychotics

update 3

23 unique study

3 supplemental data

20

3

Yes (19)

Yes (3)

No, included in meta-analyses

Atypical antipsychotics

update 4

2 unique study

1 supplemental data

1

0

Yes (2)

Yes (1)

NA

ADHD update 4

1 unique study

No

Yes (1)

NA

Asthma/COPD

5 unique study

1 supplemental data

2

0

Yes (4)

Yes (1)

No, included in meta-analysis

Combination products

1 unique study

0

Yes (1)

NA

Diabetes drugs

2 unique study

0

Yes (2)

NA

Hepatitis C original

2 unique study

1

Yes (2)

NA

Hepatitis C update 1

3 unique study

1

Yes (3)

NA

Long-acting insulins

4 unique study

2 supplemental data

0

0

Yes (3)

Yes (2)

Yes, findings in offspring of women using insulin during pregnancy contradict one other study found.

Multiple sclerosis update 2

1 unique study

0

No

Yes, contradicted findings of studies with longer duration (favored manufacturers drug in shorter duration, no difference with longer duration)

Neuropathic pain

1 unique study

0

Yes (1)

NA

Proton pump inhibitors Update 5

6 unique study

0

Yes (6)

NA

Topical calcineurin inhibitors

3 unique study

1 supplemental data

1

0

Yes (2)

Yes (1)

NA

Triptans update 4

1 supplemental data

1

Yes (1)

NA

  1. *Unique = new unique study, Supplemental = data that supplements a previously identified unique study, NA, not applicable