NCT07591727

Brief Summary

This is an exploratory clinical trial aimed at preliminarily evaluating the efficacy, safety, and feasibility of orally administered Gut-X-001 in patients with Alzheimer's disease (AD). An open-label extension (OLE) study will also be conducted to further investigate the effects of Gut-X-001. The study will assess the effects of Gut-X-001 on cognitive function, activities of daily living, neuroimaging indicators, and AD-related plasma biomarkers in AD patients. Safety will be systematically monitored, including the incidence of adverse events and changes in hematological and organ function parameters. Furthermore, the study will explore the regulatory effects of Gut-X-001 versus placebo on venous blood redox-related indicators and gut microbiota metabolite levels at different time points, providing a basis for multi-target intervention strategies and offering systematic evidence for the scientific rationale, feasibility, and safety of Gut-X-001 in the clinical management of AD.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P75+ for phase_1

Timeline
16mo left

Started Aug 2026

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 11, 2026

Completed
7 days until next milestone

First Posted

Study publicly available on registry

May 18, 2026

Completed
3 months until next milestone

Study Start

First participant enrolled

August 1, 2026

Expected
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2027

7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

June 11, 2026

Status Verified

June 1, 2026

Enrollment Period

9 months

First QC Date

May 11, 2026

Last Update Submit

June 9, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change from baseline in ADAS-Cog13 score at Month 6

    Change from baseline in the Alzheimer's Disease Assessment Scale - Cognitive Subscale 13-item version (ADAS-Cog13) score. Higher scores indicate greater cognitive impairment.

    Baseline, Month 6

Secondary Outcomes (7)

  • Change from baseline in ADAS-Cog13 score at Month 12 (OLE)

    Baseline, Month 6, Month 12 (OLE)

  • Change from baseline in ADCS-ADL score at Month 6 and Month 12 (OLE)

    Baseline, Month 6, Month 12 (OLE)

  • Change from baseline in PSQI score at Month 6 and Month 12 (OLE)

    Baseline, Month 6, Month 12 (OLE)

  • Change from baseline in NPI score at Month 6 and Month 12 (OLE)

    Baseline, Month 6, Month 12 (OLE)

  • Change from baseline in brain volume and hippocampal volume at Month 6 and Month 12 (OLE)

    Baseline, Month 6, Month 12 (OLE)

  • +2 more secondary outcomes

Other Outcomes (13)

  • Rate of ≥90% medication adherence at Month 6

    Month 6

  • Incidence of clinically significant abnormal CBC findings at Day 7, Month 3, Month 6, and Month 12 (OLE)

    Day 7, Month 3, Month 6, Month 12 (OLE)

  • Incidence of clinically significant hepatic biochemical abnormalities at Day 7, Month 3, Month 6, and Month 12 (OLE)

    Day 7, Month 3, Month 6, Month 12 (OLE)

  • +10 more other outcomes

Study Arms (3)

Low-Dose Group

EXPERIMENTAL

Low-Dose Gut-X-001

Drug: Gut-X-001 + Placebo capsule

High-Dose Group

EXPERIMENTAL

High-Dose Gut-X-001

Drug: Gut-X-001

Control Group

PLACEBO COMPARATOR

Placebo

Drug: Placebo

Interventions

Participants will receive Gut-X-001 orally at a dose of 2 active capsules (10 mg of active ingredient per capsule) plus 2 placebo capsules (0 mg of active ingredient per capsule) per administration, 3 times daily (at 8:00 AM, 12:00 PM, and 10:00 PM), administered before meals and before bedtime. Total active ingredient per administration: 20 mg; total daily dose: 60 mg.

Low-Dose Group

Participants will receive Gut-X-001 orally at a dose of 4 active capsules (10 mg of active ingredient per capsule) per administration, 3 times daily (at 8:00 AM, 12:00 PM, and 10:00 PM), administered before meals and before bedtime. Total active ingredient per administration: 40 mg; total daily dose: 120 mg.

High-Dose Group

Participants will receive 4 placebo capsules (0 mg of active ingredient per capsule) orally per administration, 3 times daily (at 8:00 AM, 12:00 PM, and 10:00 PM), administered before meals and before bedtime. Placebo capsules are identical in appearance to the active Gut-X-001 capsules to maintain blinding.

Control Group

Eligibility Criteria

Age50 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥50 and ≤85 years.
  • Diagnosis of Alzheimer's disease confirmed by a qualified neurologist based on the 2024 National Institute on Aging - Alzheimer's Association (NIA-AA) diagnostic criteria, with at least one abnormal core biomarker, including amyloid PET, CSF Aβ42/40, phosphorylated tau181 (p-tau181)/Aβ42, total tau (t-tau)/Aβ42, or plasma p-tau217.
  • MMSE score meeting the following criteria:
  • If years of education ≤6: MMSE score between 16 and 24 (inclusive); If years of education \>6: MMSE score between 18 and 27 (inclusive).
  • Clinical Dementia Rating (CDR) global score of 0.5 (for MCI due to AD) or 1.0 (for mild AD dementia).
  • If receiving acetylcholinesterase inhibitor (AChEI) and/or memantine therapy, the dose must have been stable for at least 3 months prior to screening.
  • Participants must have a reliable caregiver who has frequent contact with the participant (at least 4 days per week and at least 2 hours per day). The caregiver must accompany the participant to all study visits, provide meaningful input for scale assessments through sufficient interaction with the participant, and remain consistent throughout the study period wherever possible.
  • The participant or their legally authorized representative is able and willing to provide written informed consent.

You may not qualify if:

  • Presence of other conditions that may contribute to cognitive impairment, including neurological disorders (e.g., vascular cognitive impairment, Parkinson's disease, frontotemporal dementia, Lewy body dementia) or psychiatric and affective disorders (e.g., severe anxiety/depression, schizophrenia).
  • Diagnosis of acute cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage, myocardial infarction, or heart failure within the 3 months prior to screening.
  • Presence of other active or significant neurological conditions, including recurrent epileptic seizures, intracranial space-occupying tumors, vascular malformations (including arteriovenous malformations, arterial malformations, or cavernous malformations), or untreated aneurysms with a diameter \>3 mm.
  • Severe hepatic impairment \[ALT or AST \>3× upper limit of normal (ULN), or concurrent acute hepatitis, chronic active hepatitis, or liver cirrhosis\], renal impairment \[estimated glomerular filtration rate (eGFR) \<45 mL/min/1.73 m²\], active malignancy, severe anemia, chronic obstructive pulmonary disease (COPD), immune system disorders, uncontrolled diabetes, or uncontrolled hypertension \[systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥100 mmHg\].
  • Currently receiving medications that may interfere with study outcomes.
  • Known hypersensitivity to the investigational drug or any of its excipients.
  • Formal education of 1 year or less.
  • Known history of severe organic disease or an anticipated survival of less than 12 months.
  • Pregnant or breastfeeding women, or women of childbearing potential who refuse to use contraceptive measures.
  • Participation in another clinical study within 30 days prior to screening, or currently enrolled in another clinical study.
  • Any other condition that, in the investigator's judgment, makes the participant unsuitable for enrollment or unable to complete the study procedures and follow-up visits, such as psychiatric illness or physical conditions that preclude compliance with study requirements.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 11, 2026

First Posted

May 18, 2026

Study Start (Estimated)

August 1, 2026

Primary Completion (Estimated)

May 1, 2027

Study Completion (Estimated)

December 1, 2027

Last Updated

June 11, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share