A 24-Month Study to Evaluate the Efficacy and Safety of Elenbecestat (E2609) in Participants With Early Alzheimer's Disease
Summary
The name of this trial is MissionAD1. This phase 3 study consists of a Core and Open Label Extension (OLE) Phase in participants with Early Alzheimer's Disease (EAD), and will be conducted to evaluate the efficacy and safety of E2609. The Core is a 24-month treatment, multicenter, double blind, placebo controlled parallel group study. The OLE is a 24-month treatment, one group study. The data for the studies E2609-G000-301 (NCT02956486, MissionAD1) and E2609-G000-302 (NCT03036280, MissionAD2) will be pooled.
Timeline
- Start
- 2016-10-20
- Primary completion
- 2020-01-15
- Completion
- 2020-01-15
Outcome
Missed primary endpoint
Stopped: “Due to an unfavorable risk-benefit ratio including no evidence of potential efficacy, and the adverse event profile of E2609 being worse than placebo.”
registry analysis (superiority test); Core Phase: Placebo vs Core Phase: Elenbecestat 50 mg; p = 0.385; Least Square (LS) Mean Difference -0.17 (95% CI -0.57 to 0.22); MMRM NCT02956486 ↗
Publications
- Devanarayan V, Doherty T, Charil A, Sachdev P, Ye Y, Murali LK, Llano DA, Zhou J, Reyderman L, Hampel H, Kramer LD, Dhadda S, Irizarry MC. Plasma pTau217 predicts continuous brain amyloid levels in preclinical and early Alzheimer's disease. Alzheimers Dement. 2024 Aug;20(8):5617-5628. doi: 10.1002/alz.14073. Epub 2024 Jun 28.
- Devanarayan V, Ye Y, Charil A, Andreozzi E, Sachdev P, Llano DA, Tian L, Zhu L, Hampel H, Kramer L, Dhadda S, Irizarry M; Alzheimer's Disease Neuroimaging Initiative (ADNI). Predicting clinical progression trajectories of early Alzheimer's disease patients. Alzheimers Dement. 2024 Mar;20(3):1725-1738. doi: 10.1002/alz.13565. Epub 2023 Dec 13.
- Bullich S, Mueller A, De Santi S, Koglin N, Krause S, Kaplow J, Kanekiyo M, Roe-Vellve N, Perrotin A, Jovalekic A, Scott D, Gee M, Stephens A, Irizarry M. Evaluation of tau deposition using 18F-PI-2620 PET in MCI and early AD subjects-a MissionAD tau sub-study. Alzheimers Res Ther. 2022 Jul 27;14(1):105. doi: 10.1186/s13195-022-01048-x.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Elenbecestat | Small molecule | 50 mg | Oral |