A Phase 2 interventional study of Sodium Pentaborate Pentahydrate and Placebo in Alzheimer Disease, sponsored by Tabriz University of Medical Sciences. Not yet recruiting. Open to participants aged 55 Years to 85 Years. Per ClinicalTrials.gov, last updated 2025-02-21.
Sponsored by Tabriz University of Medical Sciences · Phase 2, Interventional, and Treatment
Alzheimer's disease (AD) is the leading cause of dementia, affecting millions worldwide. With its global prevalence steadily increasing, particularly in low- and middle-income countries, the demand for effective treatments has become critical. Despite significant advancements in understanding AD pathophysiology, including amyloid-beta plaques and tau tangles, no disease-modifying therapies are currently available, highlighting the urgent need for novel therapeutic interventions.
This proposal presents a Phase 2, randomised, double-blind, placebo-controlled trial to assess the safety and efficacy of sodium pentaborate pentahydrate (NaB) in patients with mild to moderate AD. A total of 60 participants aged 55 to 85 years with confirmed AD will be randomly assigned to receive either NaB (1000 mg) or a placebo, alongside Donepezil, for six months. The primary outcome will be changes in the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog13), while secondary outcomes will include the Clinical Dementia Rating-Sum of Boxes (CDR-SB) and the Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL).
This study is a Phase 2, randomised, double-blind, placebo-controlled trial conducted over six months to evaluate the safety and efficacy of sodium pentaborate pentahydrate in patients with Alzheimer's disease. Participants will be screened and enrolled in the study under the principles of the Declaration of Helsinki, International Conference on Harmonisation (ICH) guidelines, and local regulatory requirements. Written informed consent will be obtained from all participants or their legal representatives.
Study Design and Participants
Participants aged 55 to 85 years with mild to moderate Alzheimer's disease will be recruited based on the criteria of the National Institute on Aging and the Alzheimer's Association (NIA-AA). Screening methods will include a Mini-Mental State Examination (MMSE) score between 10 and 24, evidence of episodic memory impairment (≥1 standard deviation below the age norm), and the use of stable doses of Alzheimer's medications. Exclusion criteria include major neurological or psychiatric disorders, significant amyloid-related imaging abnormalities (ARIA) detected on magnetic resonance imaging (MRI), or recent use of experimental drugs.
Randomisation and Intervention
Participants will be randomly assigned to two groups: one group will receive a placebo along with donepezil, while the other group will receive 1000 mg of sodium pentaborate pentahydrate daily along with donepezil. A balanced block randomisation method will be used to allocate participants into the two groups. The randomisation sequence will be generated by an independent individual uninvolved in the study to minimise the risk of prediction or manipulation and to ensure balanced group sizes throughout the study.
Both participants and study personnel, including investigators and those responsible for study execution, will remain blinded to treatment allocation until the study is completed. Each active sodium pentaborate pentahydrate treatment group will have a matching placebo group with identical tablets to maintain blinding. Participants will take their assigned medication as a once-daily oral tablet after meals for six months. Study visits are scheduled for screening and randomisation (baseline), as well as at months 1, 2, 4, and 6.
Outcomes
The primary outcome will be changes in the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog13) score, ranging from 0 to 85, where higher scores indicate greater impairment from baseline to month 6. Secondary outcomes will include changes in the Clinical Dementia Rating-Sum of Boxes (CDR-SB) score, ranging from 0 to 18, where higher scores indicate greater impairment, and the Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) score, ranging from 0 to 78, where lower scores indicate greater impairment.
Sample Size and Statistical Analysis
Since no previous studies have evaluated the effects of sodium pentaborate pentahydrate on Alzheimer's disease, this research will begin with an initial pilot phase, enrolling 30 participants in each of the sodium pentaborate pentahydrate and placebo groups. Pilot data will be used to estimate the effect size for primary outcomes, such as changes in ADAS-Cog13 scores. Based on pilot results, a power analysis will be conducted to determine the final sample size required for the main study. The analysis will aim to provide at least 80% power to detect clinically meaningful differences at a two-sided alpha level of 0.05.
Before comparing outcomes between the sodium pentaborate pentahydrate and placebo groups, data distribution will be assessed for normality using the Kolmogorov-Smirnov test and visual methods such as histograms. If data follow a normal distribution, parametric tests will be used for group comparisons; otherwise, appropriate non-parametric tests will be applied. For normally distributed data, an independent t-test will be used to compare group differences at each time point. A repeated-measures analysis of variance (ANOVA) will be performed to assess the time-dependent effects of sodium pentaborate pentahydrate. Covariates, including age and other baseline characteristics, will be controlled in the models.
3,965 studies on the registry are indexed under Alzheimer Disease; 926 are open to participants now.
This study's planned enrollment of 30 is below the median of 70 across 3,019 interventional studies indexed under Alzheimer Disease.
Browse Alzheimer Disease studies →Tabriz University of Medical Sciences is the lead sponsor of 15 studies on the registry; 4 are open to participants now.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Age between 55 and 85 years Diagnosis of mild to moderate Alzheimer's disease based on the National Institute on Aging and Alzheimer's Association (NIA-AA) criteria (MMSE) score between 10 and 24 Evidence of episodic memory impairment (≥1 standard deviation below age norm) Use of stable doses of Alzheimer's medications
Exclusion Criteria:
Presence of major neurological or psychiatric disorders Significant amyloid-related imaging abnormalities (ARIA) detected on magnetic resonance imaging (MRI) Recent use of experimental drugs
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.
MMSE and MoCA
Short tests of memory and thinking, each scored out of 30. Lower scores suggest more difficulty; criteria give a range, either to include people with memory problems or to leave them out.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
will receive 1000 mg of sodium pentaborate pentahydrate daily along with donepezil
Drug: Sodium Pentaborate Pentahydrate
will receive a placebo along with donepezil
Drug: Placebo
will receive 1000 mg of sodium pentaborate pentahydrate daily along with donepezil.
will receive a placebo along with donepezil
Alzheimer's Disease Assessment Scale - Cognitive Subscale (ADAS-Cog13)
The primary outcome will be changes in the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog13) score, ranging from 0 to 85, where higher scores indicate greater impairment from baseline to month 6.
Time frame: Baseline to month 6
Clinical Dementia Rating - Sum of Boxes (CDR-SB)
Changes in the Clinical Dementia Rating-Sum of Boxes (CDR-SB) score, ranging from 0 to 18, where higher scores indicate greater impairment.
Time frame: Baseline to month 6
Alzheimer's Disease Cooperative Study - Activities of Daily Living Scale (ADCS-ADL)
Alzheimer's Disease Cooperative Study-Activities of Daily Living (ADCS-ADL) score, ranging from 0 to 78, where lower scores indicate greater impairment.
Time frame: Baseline to month 6.
No study locations are listed for this record.
Plan to share: Undecided
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This study is not yet recruiting, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Sodium pentaborate pentahydrate
Tabriz University of Medical Sciences