Weekly pill could slow aging: early trial launches
NCT ID NCT05949658
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times
Summary
This Phase 1 trial tests two drugs, sirolimus and everolimus, given once a week to healthy adults aged 55-89. The goal is to find the safest dose that might slow the aging process. Participants take the drug for 6 weeks and are monitored for side effects and drug levels in the blood.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- sirolimus and everolimus (weekly oral doses)
- What this could lead to
- If successful, this could point toward a safe, weekly pill that slows the aging process and extends healthy lifespan.
- What could go wrong
- This is a very early Phase 1 trial with only 72 healthy participants over 17 weeks. The drugs may cause side effects or fail to show meaningful anti-aging effects.
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
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 72 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2024
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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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
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55 to 89 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * Middle-age adults free of overt chronic disease * Willing to provide informed consent * Willing to comply with all study procedures and be available for the duration of the study * Able to use and be contacted by telephone * Ability to take oral medication * Not planning to change diet or physical activity status * Adequate organ function as indicated by standard laboratory tests: hematology (complete blood count), and clinical chemistry * Males must agree to avoid impregnation of women during and for four weeks after completing study visits through use of an acceptable method of contraception Exclusion Criteria: * Heart disease (history, abnormal ECG) * Cerebrovascular disease (history) * Cancer or less than 5 years in remission (history) * Chronic respiratory disease (history, FEV1/FVC \< 70, FEV1 \< 80% predicted) * Chronic liver disease (history, abnormal blood liver panel, ALT \>104 IU/L, AST \>80 IU/L) * Diabetes (history, HbA1C ≥ 6.5, fasting blood glucose≥126 mg/dl, OGTT ≥ 200 mg/dl at 2 hrs.) * Alzheimer's (history) * Chronic kidney disease (history, abnormal blood kidney panel including serum creatinine\>1.4, eGFR≤60 ml/min/1.73m2) * Problems with bleeding, on medication that prolongs bleeding time (if subject cannot safely stop prior to biopsy) * Taking azathioprine (Imuran), cyclosporine (Gengraf, Neoral, Sandimmune), dexamethasone (Decadron, Dexpak), methotrexate (Rheumatrex, Trexall), prednisolone (Orapred, Pediapred, Prelone), prednisone (Sterapred), sirolimus (Rapamune), and tacrolimus (Prograf) or other medications proposed to lower the immune system * Taking strong or moderate CYP3A4 and/or P-glycoprotein (PgP) inhibitors such as ketoconazole, itraconazole, clarithromycin, atazanavir, nefazodone, saquinavir, telithromycin, ritonavir, indinavir, nelfinavir, voriconazole, amprenavir, fosamprenavir, aprepitant, erythromycin, fluconazole, verapamil, diltiazem * Taking strong or moderate CYP3A4 and/or P-glycoprotein (PgP) inhibitors such as ketoconazole, itraconazole, clarithromycin, atazanavir, nefazodone, saquinavir, telithromycin, ritonavir, indinavir, nelfinavir, voriconazole, amprenavir, fosamprenavir, aprepitant, erythromycin, fluconazole, verapamil, diltiazem * Taking strong CYP3A4 activators such as phenytoin, carbamazepine, rifampin, rifabutin, rifapentine, phenobarbital * Taking daily NSAIDs such as ibuprofen, naproxen, aspirin and others, with the exception of baby aspirin (81mg) * Subjects who are not willing to restrict the use of grapefruit, grapefruit juice, cannabidiol (CBD) and other foods/substances that are known to inhibit cytochrome P450 and PgP activity and may increase everolimus exposures and should be avoided during treatment * Subjects who are not willing to restrict the use of St. John's Wort (Hypericum perforatum) because it may decrease everolimus exposure unpredictably. * Subjects who are not willing to avoid blood donations 8 weeks prior to the first visit and 8 weeks after the last visit * Low white-blood cell count (\<4,000 cell/µL) * History of stomatitis or ulcers in the mouth * Those on glucose lowering drugs * Participating in intensive exercise training program (high to moderate intensity exercise greater than 150 minutes per week) or planning to start new exercise program during study period * Tobacco or nicotine use * Allergies to lidocaine, sirolimus, or everolimus * Subjects currently enrolled in other clinical trials. Subjects may be eligible after a washout period that will be reviewed on a case-by-case basis. * Individuals with limited English proficiency * Subjects who are planning to have elective surgery 12 weeks prior to or during the intervention
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of Wisconsin
RECRUITINGMadison, Wisconsin, 53705, United States
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