Alzheimer’s Disease Drug Pipeline: 140 Assets by Phase

How many Alzheimer's disease drugs are in each phase of development?

Douglas Insights counts 18 Alzheimer's disease candidates in Phase III, 13% of the 140 assets in development; Phase II holds 55 and Phase I holds 67.

Phase I/II candidates sit in the Phase I row and Phase II/III candidates in the Phase II row, so each Alzheimer's disease asset appears in exactly one row. The 303 trials still recruiting or running carry 40% of the 754 registered trials in scope.

Which approved Alzheimer's disease medicines are still in trials?

4 medicines already on the market are still being tested in Alzheimer's disease Phase IV trials; Donanemab has the most, with 16 registered trials.

Post-approval Alzheimer's disease trials test new doses, new patient groups and head-to-head comparisons. They set the standard of care that every candidate in development will be measured against, so the paid review profiles each one.

How many Alzheimer's disease trials are recruiting patients now?

161 Alzheimer's disease trials are recruiting patients and 61 more have not started recruiting yet, out of 754 interventional trials in scope; together they make up 29% of the trial base.

Terminated, suspended and withdrawn Alzheimer's disease trials stay in the trial base so that a stalled programme is visible, but a candidate whose only trials stopped is no longer counted as in development.

Which companies lead the Alzheimer's disease pipeline?

AC Immune SA leads the Alzheimer's disease pipeline with 9 candidates; the top 5 sponsors hold 21% of the 140 assets, and 100 sponsors run at least one.

Industry sponsors lead 422 of the 754 Alzheimer's disease trials (56%); universities, hospitals and public funders lead the rest. A sponsor is credited with an asset when it is the lead sponsor on most of that asset's industry trials.

Which drug types and mechanisms dominate the Alzheimer's disease pipeline?

Mechanism and drug-type classification for the 140 Alzheimer's disease candidates is done by the research desk asset by asset, each with a cited source, and is published in the paid review together with the white-space map.

What Alzheimer's disease trial readouts are coming next?

18 Alzheimer's disease candidates in Phase II or later have a registered primary completion date in the next 12 months; the next three are below, each linked to its registry record.

Primary completion is the date a sponsor expects the last patient to finish the main measurement, so data usually follow within months. Dates marked estimated are the sponsor's own forecast on the registry and often move.

How many Alzheimer's disease readouts fall in each quarter?

42 Alzheimer's disease candidates in Phase II or later reach registered primary completion over the next eight quarters, with the most, 10, due in Q4 2026.

Each candidate is counted once, at its next readout. The paid catalyst calendar names every readout with its trial, sponsor and design, adds filings and regulatory decisions, and runs 24 months ahead.

Which countries host the most Alzheimer's disease trials?

United States hosts the most Alzheimer's disease trials, with sites in 449 of the 754 studies (60%); trials in scope run in 58 countries in all.

A multinational Alzheimer's disease trial is counted once in every country where it has a site, so the shares add up to more than 100%. Country spread shows where sponsors are building the evidence that regulators in each market will ask for.

Where are Alzheimer's disease drugs being tested?

449 of the 754 Alzheimer's disease trials (60%) have a site in the United States, 208 (28%) in Europe and 87 (12%) in China; 87 of the 140 candidates in development are tested in the US.

Each region's trials are the evidence its regulator will review: the FDA in the United States, the EMA (with the MHRA and Swissmedic) in Europe, the NMPA in China and the PMDA in Japan. A multinational Alzheimer's disease trial counts once in every region where it has a site, so the shares add up to more than 100%. A candidate tested only outside the US and Europe is often a licensing opportunity for sponsors in those markets.

What has changed in the Alzheimer's disease pipeline since the last update?

Since 3 Oct 2026, the Alzheimer's disease pipeline count moved by 0 assets to 140, Phase III moved by 0 and the trial base by 0.

How does Douglas Insights count the Alzheimer's disease pipeline?

Douglas Insights read 754 interventional trials registered on ClinicalTrials.gov for the conditions "alzheimer disease" and updated since 3 Oct 2021, then grouped every drug or biologic named in them into 140 unique candidates.

1. Code names, generic names and brand names of the same molecule are merged into one candidate, and every merge is reviewed by the research desk.
2. A candidate counts when it has a trial that is recruiting, running, or completed in the last 24 months, and at least one industry-sponsored trial.
3. Its phase is the highest phase among those trials; placebo, standard-of-care and comparator arms are not candidates.
4. Each figure on this page is drawn from one frozen dataset that passes ten checks before release, and the owner approves every edition.

Read the full approach on the research methodology page, or browse other Pharmaceuticals research.

Frequently asked questions about the Alzheimer's disease pipeline

Research & citation

This review was researched, written and reviewed by the Douglas Insights Research Desk under the Douglas Insights editorial standards. Material errors are logged in the corrections log. No section is sponsored.

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