DrugEvidence

Companies / Bayer

Bayer

Company

Bayer AG is a German multinational pharmaceutical and biotechnology company headquartered in Leverkusen, Germany. Founded in 1863, it is one of the world's largest pharmaceutical and biomedical companies.

Trials
1672
Recruiting
44
Completed
1446
With results
304

Last revised

Pipeline

Phase by status

PhaseRecruitingNot yetActiveCompletedTerminatedWithdrawnApproved for marketingAvailableNo longer availableTotal
Phase 1 823305263 347
Phase 1/2 221231 20
Phase 2 312190343 233
Phase 2/3 6 6
Phase 3 46279179 315
Phase 4 219881 110
Not applicable 210922 115
Unknown 2382044799118 526

Trials started per year

2021
19
2022
47
2023
31
2024
50
2025
28
2026
28
2027
2

Conditions studied, by phase

ConditionPhase 1Phase 1/2Phase 2Phase 2/3Phase 3Phase 4Not applicableUnknownTotal
Neoplasms 53111816 80
Atrial Fibrillation 36446 59
Hemophilia A 1012268126 56
Erectile Dysfunction 22121187 51
Renal Insufficiency, Chronic 12109116 48
Prostatic Neoplasms 6194122 43
Hypertension, Pulmonary 478216 37
Multiple Sclerosis 123328 37
Diabetes Mellitus, Type 2 433223 35
Venous Thromboembolism 61019 35

Most active sponsors

#SponsorTrialsPhase 3
1Bayer1672321

Frequent collaborators

#CollaboratorTrials
1Janssen Research & Development, LLC69
2Regeneron Pharmaceuticals37
3GlaxoSmithKline19
4Merck Sharp & Dohme LLC17
5Janssen Scientific Affairs, LLC12
6Amgen11
7Johnson & Johnson Pharmaceutical Research & Development, L.L.C.8
8Novartis7
9Orion Corporation, Orion Pharma6
10RTI Health Solutions5

Most studied interventions

#InterventionTrials
1Rivaroxaban113
2Sorafenib78
3aflibercept60
4regorafenib54
5Vardenafil Dihydrochloride54
6radium Ra 223 dichloride46
7Interferon beta-1b44
8finerenone38
9Aspirin37
10Factor VIII36

Evidence

Results reported
21%304 of 1446 completed
Published
11.9%172 of 1446 completed
Primary endpoint met
58.3%259 of 444 analyses
Median months to report
12

Documents disclosed

Protocol available
112
Statistical analysis plan
112
PubMed citations
395

Trial profile

Median enrollment
124
Median duration
17months
Countries
98
Study sites
11671

Who is enrolled

Adults
1626
Children
231
Older adults
1286
Healthy volunteers
389

Median enrollment by phase

Phase 1
32
Phase 1/2
51
Phase 2
95
Phase 2/3
212
Phase 3
364
Phase 4
200
Not applicable
12
Unknown
710

Where trials run

United States
600
Germany
547
Italy
293
Spain
290
France
273
United Kingdom
271
Japan
269
Canada
230
Belgium
204
Netherlands
190

Busiest cities

#CityCountryTrials
1BerlinGermany221
2BarcelonaSpain187
3MilanItaly169
4MadridSpain152
5HoustonUnited States141
6LondonUnited Kingdom134
7SeoulSouth Korea134
8ViennaAustria122
9MontrealCanada116
10ParisFrance116

Terminations

Terminated
99
Withdrawn
28
Stopped for recruitment
0.5%8 of 1672 trials

Stated reasons

Other / unclear
90
Business decision
9
Lack of efficacy
8
Recruitment
8
Regulatory
8
Safety
4

Reasons are grouped from the sponsor's own wording with a rule-based classifier; the original text is shown below.

Recently stopped

TrialStatusStated reasonStopped
NCT07515339 Withdrawn Withdrawn The study is no longer required. 2026-06-26
NCT06904274 Withdrawn Withdrawn Bayer cancelled study 22923 due to enrollment challenges, including difficulties identifying eligible patients, participation requirements, and site burden. The decision was unrelated to safety and does not change Mirena's benefit-risk profile. 2026-06-17
NCT01065454 Terminated Terminated The sponsor terminated the study for strategic reasons. This decision was not due to safety concerns for participants receiving treatment at the time the study was terminated. 2025-07-23
NCT04999202 Terminated Terminated Last patient ongoing on treatment ended the study on 20th January 2025. Hence, the end of study was reached as defined in the protocol. 2025-01-20
NCT03194646 Terminated Terminated Due to a change in the development program, the study was closed prematurely. 2024-07-11
NCT05643573 Terminated Terminated Independent Data Monitoring Committee (IDMC) recommendation to stop the study 2024-01-31
NCT04267939 Terminated Terminated There was no anticipated benefit of the experimental combination as tested over available standard therapies; therefore Sponsor has decided to terminate the investigation. 2023-12-01
NCT02626455 Terminated Terminated Company decided to terminate this study due to study did not meet the primary endpoint. 2023-11-10
NCT05395858 Terminated Terminated Bayer business decision to close the REAL study based on the following: Target objective of enrolling at least 20 patients into the retrospective part failed; Not enough available data that would be a meaningful addition to the literature. 2023-11-06
NCT05406219 Withdrawn Withdrawn Discontinuation of program. 2023-10-12

Trial records

Individual study records live on ClinicalTrials.gov. A sample of the trials counted above:

Search all Bayer trials on ClinicalTrials.gov →