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Could a common drug slow Alzheimer's? new study tests rapamycin

NCT ID NCT04629495

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether the drug rapamycin is safe and tolerable for older adults with mild memory problems or early Alzheimer's disease. About 40 participants will take rapamycin for 12 months while researchers monitor side effects and changes in memory and thinking. The goal is to see if this drug, already used for other conditions, might help control the disease.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

40 people

The number who actually took part.

Started

Aug 2021

Expected to finish

Mar 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

55 to 89 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Both genders and all ethnic groups 2. Ages 55 to 89 years 3. Diagnosis of MCI or AD (Mini Mental Status Examination (MMSE): 18-30; Clinical Dementia Rating Scale (CDR) = 0.5 - 1; California Verbal Learning Test III (CVLT-III) Delayed Recall ≤16% based on age-adjusted norms, clinician approval) 4. Amyloid positivity based on Amyloid PET Imaging 5. Labs: Normal blood cell counts without clinically significant excursions; normal liver and renal function; and glucose control (HbA1c \< 6.5%). Fasting lipid panel and prothrombin time/prothrombin time test/international normalized ration (PT/PTT/INR) within normal limits 6. A legally authorized representative (LAR) designated to sign informed consent (if necessary) must attend the Screening visit and accompany the participant to all remaining visits to provide reported outcomes 7. Stable dose of AD medications (Donepezil, rivastigmine, Memantine, galantamine) for at least three months is allowed Exclusion Criteria: 1. Diabetes (HBA1c≥6.5% or antidiabetic medications) 2. History of skin ulcers or poor wound healing 3. Current tobacco or illicit drug use or alcohol abuse 4. Use of anti-platelet or anti-coagulant medications other than aspirin 5. Current medications that affect cytochrome 450 3A4 (CYP3A4) 6. Immunosuppressant therapy within the last year 7. Chemotherapy or radiation treatment within the last year 8. Current or chronic history of liver or kidney disease or known hepatic or biliary abnormalities 9. Untreated hypertriglyceridemia (fasting triglycerides \< 250 mg/dl) 10. Current or chronic history of pulmonary disease or abnormal pulse oximetry (\<90%) 11. Chronic heart failure 12. Pregnancy or lactation 13. Recent history (past six months) of myocardial infarction, active coronary artery disease, intestinal disorders, stroke, or transient ischemic attack 14. Significant neurological conditions other than AD or MCI 15. Poorly controlled blood pressure (systolic BP\>160, diastolic BP\>90 mmHg - based on two readings) 16. Active inflammatory, COVID-19, autoimmune, infectious, hepatic, gastrointestinal, malignant, and/or severe mental illness 17. History of, or MRI, or CT positive for, any space occupying lesion, including mass effect or abnormal intracranial pressure, which would indicate contraindications to lumbar puncture 18. Organ transplant recipients

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Conditions

The condition(s) this trial relates to.

Alzheimer disease Cognitive Dysfunction

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases

    San Antonio, Texas, 78229, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.