Table 1 Invited interview partners and conducted interviews

Ethics committees

19

4

-

Patient organizations

6

1

-

Pharmaceutical industry

9

2

1

Political decision makers

2

1

1

Publishing (journal editors, associations)

9

4

-

Regulatory agencies and supporting organizations (e.g. trial registries)

15

6

1

Research funding bodies

14

5

-

Research institutions and associations

10

6

-

Other groups: networks, associations

5

5

-

Overall

89

34

3