L. lactis CKDB001 for people with early Alzheimer's disease
Official title: A Randomized, Placebo-Controlled, Double-Blind, 24-Week Proof-of-Concept Study to Evaluate the Safety and Efficacy of L. Lactis CKDB001 in Subjects With Early Alzheimer's Disease
Run by CKD Bio Corporation · NCT07496021 · Data updated 2026-11-12
This 24-week study will test if oral L. lactis CKDB001 helps adults aged 55–85 with early Alzheimer's disease and positive amyloid PET compared with a placebo.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 55 Years to 85 Years |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | CKD Bio Corporation Industry-sponsored |
| Locations | 2 sites (Gyeonggi-do and 1 other locations) |
| Status | Recruiting |
| Started | February 23, 2026 |
| Main results expected | May 31, 2027 |
| Study ends | May 31, 2027 |
| Registry record updated | March 30, 2026 |
| Trial ID | NCT07496021 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults 55–85 years old with early Alzheimer's disease who are amyloid PET–positive, have K-MMSE scores of 20–28, and a global CDR of 0.5–1.
✕Probably not a fit
Patients with more advanced dementia, non-amyloid causes of cognitive impairment, active CNS disease, seizure disorders, or significant medical conditions that affect cognition are unlikely to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a randomized, double-blind, placebo-controlled, 24-week proof-of-concept trial comparing oral L. lactis CKDB001 to placebo in people with early Alzheimer's disease. Eligible participants are aged 55–85 with K-MMSE scores of 20–28, a global CDR of 0.5–1, and positive amyloid PET. Safety and cognitive outcomes will be tracked over the treatment period to look for changes in symptoms and tolerability. The sponsor is CKD Bio Corporation and study visits are conducted at Yonsei University Severance hospitals in Seoul and Yongin, South Korea.
Why it matters
Potential benefit: If successful, CKDB001 could provide a new, noninvasive treatment that slows or improves cognitive symptoms in early Alzheimer's disease.
How similar studies have gone: Using probiotics or microbiome-targeted approaches for Alzheimer's is a novel strategy with some early preclinical and small clinical signals but no definitive successes to date.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Male and female adults aged ≥55 and ≤85 years at the time of written consent 2. Subjects with a Korean Mini-Mental State Examination (K-MMSE) score of 20 to 28 3. Have a global Clinical Dementia Rating (CDR) score of 0.5 to 1 and a CDR Memory Box score of 0.5 or greater 4. Subjects who test positive for amyloid on Positron Emission Tomography (PET) Exclusion Criteria: 1. Subjects with clinically significant diseases other than Alzheimer's disease that may confound cognitive assessment * History of central nervous system (CNS) diseases * Active central nervous system (CNS) infection capable of affecting cognitive function, or a history of infection resulting in neurological sequelae * Structural brain abnormalities identified on screening MRI that could account for cognitive impairment * Abnormal thyroid function identified at screening * Vitamin B12 deficiency identified at screening 2. History of seizure disorder or epilepsy 3. History or suspicion of alcohol or substance abuse/dependence 4. History of psychiatric disorders, including schizophrenia, bipolar disorder, or clinically significant major depressive disorder, with current active symptoms 5. History of malignancy diagnosed or recurrent within 5 years prior to screening 6. History of a major cardiovascular event within 12 months prior to screening 7. Cardiovascular disease requiring the administration of anticoagulants 8. Severe or active infectious disease requiring treatment with antibiotics or antivirals within 4 weeks prior to randomization, or expected to require such treatment during the study period 9. Clinically significant gastrointestinal disorders within 3 months prior to screening, or conditions that may lead to malabsorption 10. Treatment with any disease-modifying therapy for Alzheimer's disease within 1 year prior to screening 11. Initiation or dosage/regimen changes of symptomatic treatments for dementia within 12 weeks prior to screening 12. Chronic use of medications acting on the CNS or those that may affect cognitive function within 8 weeks prior to screening 13. Regular use of medications that may alter the gut microbiota within 4 weeks prior to screening
Where it's running
-
Yonsei University Yongin Severance Hospital
Gyeonggi-do, South Korea Recruiting -
Yonsei University Severance Hospital
Seoul, South Korea Recruiting
Study contacts
- Principal investigator: Woo Jung Kim — Yonsei University Yongin Severance Hospital
- Study coordinator: Bisong Kim
- Email: bisong.kim@ckdbio.com
- Phone: +82221940510
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Urolithin A for early Alzheimer’s disease: a test with a nutritional supplement
This trial tests whether taking urolithin A in addition to standard care helps people with early Alzheimer’s or mild cognitive impairment show better biomarkers and cognition.
-
Stem Cells plus monoclonal antibodies for mild cognitive impairment or early Alzheimer's disease
This study tests whether one infusion of human mesenchymal stem cells added to standard antibody therapy can slow cognitive and daily-living decline in people with mild Alzheimer's or mild cognitive impairment who are already on approved antibody treatment.
-
TTYP01 tablets for people with early symptomatic Alzheimer's disease
This study will test whether two doses of TTYP01 tablets (60 mg and 90 mg) help people aged 60–85 with early symptomatic Alzheimer's disease (MCI due to AD or mild AD dementia) compared with placebo.
-
MK-2214 for people with early Alzheimer's disease
This trial will test whether the drug MK-2214 can slow the spread of tau protein in the brains of people with mild cognitive impairment or mild dementia from Alzheimer's disease.
-
DNL628 safety, tolerability, and drug behavior in people with early Alzheimer's disease.
This trial will test DNL628 versus placebo in people with early Alzheimer's disease to see if it is safe, well tolerated, and how the body handles the drug.
-
Targeted magnetic stimulation of the precuneus to slow cognitive decline in Alzheimer's
This will try repetitive magnetic brain stimulation of the precuneus to see if it slows memory and thinking decline in people aged 50–85 with biomarker-confirmed mild Alzheimer's.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.