Lead sponsor
Takeda
5 Alzheimer’s disease and related dementias trials led. Source: ClinicalTrials.gov, as of July 21, 2026.
5
Trials led
0
Ongoing
4,290
Total enrollment
172
Sites
Distinct sites across this sponsor's lead trials. A site running several of them counts once, matching the map. Total enrollment sums each trial's reported enrollment, whether planned or actual.
Portfolio
How this sponsor's trials break down
Trials by phase
Phase 1
1
Phase 2
1
Phase 3
3
Trials by status
Completed
2
Terminated
3
Trials led
TrialEligibility highlightPhaseStatusEnrollment
Study of TAK-071 in Healthy Participants and Participants With Mild Cognitive Impairment/Mild Alzheimer Disease and Relative Bioavailability (BA) and Food Effect of TAK-071 in Healthy ParticipantsAlzheimer's diseasePh 1Terminated179
Efficacy and Safety of Ramelteon in Subjects With Mild to Moderate Alzheimer's DiseaseAlzheimer's diseasePh 2Completed74