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Alzheimer DiseasePhase 1/22-HOBANCT06432166

2-Hydroxybenzylamine (2-HOBA) Study in Early Alzheimer's Patients

A Phase 1/2 study testing 2-hydroxybenzylamine acetate in people with Alzheimer Disease and Mild Cognitive Impairment, run by MTI Biotech Inc at 1 site in United States.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Investigators propose a phase 1b/2a, randomized, double-blind, placebo-controlled, parallel group dose finding and biomarker study to evaluate the safety, tolerability, and biomarker activity of 2-HOBA in 48 MCI/AD participants. Read more about this study

Who is it for?
Ages 55 to 85 years
Conditions the study is for
Alzheimer Disease, Mild Cognitive Impairment
What is being tested?
2-hydroxybenzylamine acetate
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
48 participants
Where
1 siteUnited States
Study dates
1 Sep 2026to 30 Jun 2029
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • MCI due to AD:
  • Male or female, aged 55-85 years (both inclusive) at the time of signing informed consent.
  • Participant must have a subjective memory concern as reported by participant, study partner, or clinician.
  • Mini-Mental State Exam31 score between 24 and 30, inclusive
  • Clinical Dementia Rating (CDR)32 Global = 0.5. Memory Box score must be at least 0.5
  • Mild AD:
Show all 29Show fewer
  • Male or female, aged 55-85 years (both inclusive) at the time of signing informed consent.
  • MCI or Mild dementia of the Alzheimer's type according to the NIA-AA 2018 criteria.
  • CDR global score of 0.5 and CDR domain score of 0.5 or more in at least one of the three instrumental activities of daily living categories (personal care, home \& hobbies, community affairs) Or CDR global score of 1.0
  • MMSE ≥20
  • Additional Inclusion Criteria for Both Diagnoses:
  • Age 55-85 (inclusive)
  • Abnormal memory function documented by scoring within the education adjusted ranges on the Logical Memory II subscale (Delayed Paragraph Recall) from the Wechsler
  • Memory Scale - Revised:
  • Less than or equal to 11 for 16 or more years of education
  • Less than or equal to 9 for 8 - 15 years of education
  • Less than or equal to 6 for 0 - 7 years of education
  • Amyloid positivity established using the C2N Precivity2 Plasma test (Aβ42/40 plus p tau217/np-tau217. (This test uses a statistical algorithm to integrate a patient's Aβ42/40 Ratio and p-Tau217 Ratio to calculate the Amyloid Probability Score 2 (APS2) and determines whether a patient is positive or negative for brain amyloid deposition based on a binary cutoff value).
  • Stable permitted medications for 4 weeks or longer as specified in Section 4.6.3, including:
  • Memantine and cholinesterase inhibitors are allowable if stable for 12 weeks prior to screen.
  • Geriatric Depression Scale33 score of less than or equal to 14.
  • Study Partner is available who has frequent contact with the participant (e.g., an average of 10 hours per week or more) and can accompany the participant to most visits to answer questions about the participant.
  • Adequate visual and auditory acuity to allow neuropsychological testing.
  • Good general health with no additional diseases/disorders expected to interfere with the study.
  • For women: participant is not pregnant, lactating, or of childbearing potential (i.e., women must be two years post-menopausal or surgically sterile).
  • For men: male participants with female partners of childbearing potential must use an effective method of contraception from dosing on Day 1 until 1 month after the lastadministration of study medication and agreed not to donate sperm until 1 month after the last administration of study medication.
  • Completed six grades of education or has a good work history.
  • Must speak English fluently.
  • Provide written informed consent. Participants must have the capacity to consent.

Who cannot join

  • Any other significant neurologic disease including Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, brain tumor, progressive supranuclear palsy, seizure disorder, subdural hematoma, multiple sclerosis, or history of significant head trauma followed by persistent neurologic deficits or known structural brain abnormalities. 2. Major depression, bipolar disorder as described in DSM-V within the past 1 year or psychotic features, agitation, or behavioral problems within 3 months, which could lead to difficulty complying with the protocol. 3. History of schizophrenia (DSM V criteria). 4. History of alcohol or substance abuse or dependence within the past 2 years (DSM V criteria). 5. Clinically significant or unstable medical condition, including uncontrolled hypertension, uncontrolled diabetes, or significant cardiac, pulmonary, renal (defined by eGFR score <60 mL/min/1.73 m²), hepatic impairment, endocrine, or other systemic disease that, in the opinion of the Investigator, may put the participant at risk because of participation in the study, influence the results, or affect the participant's ability to participate in the study.
  • Participants with moderate or severe hepatic impairment, defined as Child-Pugh Class B or C, are excluded. 6. Has had a history within the last 5 years of a primary or recurrent malignant disease with the exception of non-melanoma skin cancers, resected cutaneous squamous cell carcinoma in situ, basal cell carcinoma, cervical carcinoma in situ, or in situ prostate cancer with normal prostate-specific antigen post-treatment. 7. Clinically significant abnormalities in B12 or TFTs that might interfere with the study.
  • 8. Clinically significant abnormalities in screening laboratories or ECG. 9. Residence in a skilled nursing facility. 10. Use of any excluded medication as described in Section 4.6.2, including:
  • Use centrally acting anti-cholinergic drugs.
  • Use of any investigational drugs within 4 weeks or 5 half-lives, whichever is longer, prior to screening. 11. A current blood clotting or bleeding disorder, or significantly abnormal PT or PTT at screening. 12. Contraindications for MRI studies, including claustrophobia, the presence of metal (ferromagnetic) implants, or cardiac pacemaker. 13. Participants whom the Site PI deems to be otherwise ineligible. 14. Current use of monoamine oxidase inhibitors (MAOIs) or use within 14 days (or 5 half-lives, whichever is longer) prior to screening, This includes non-selective MAOIs (phenelzine, tranylcypromine, isocarboxazid), MAO-B inhibitors (selegiline, rasagiline, safinamide), reversible MAO-A inhibitors (moclobemide), and other agents with MAOI A inhibitory activity (linezolid, methylene blue at doses >1 mg/kg). This exclusion is required because 2-HOBA has demonstrated MAO-A inhibitory activity in vitro.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

John A. Rathmacher, Ph.D. contact

515-296-9916

rathmacher@mtibiotech.com

United States1 site
  • Center for Cognitive Medicine, Vanderbilt University Medical Center

    Nashville, Tennessee, 37212

    Meagan Adams, MSPM, PMP, (615) 421-4352, meagan.adams@vumc.org

    Patricia Andrews, M.D.

Other trials in United States

About this study

Official title: 2-Hydroxybenzylamine (2-HOBA) Phase 1b/2a Proof-of Concept, Dose-Finding, Biomarker Study in Early Alzheimer's Patients

Investigators propose a phase 1b/2a, randomized, double-blind, placebo-controlled, parallel group dose finding and biomarker study to evaluate the safety, tolerability, and biomarker activity of 2-HOBA in 48 MCI/AD participants. Participants will be randomized 1:1:1:1 to receive 250 mg BID, 250 and 500 mg 2-HOBA acetate TID or placebo for 12 weeks. Blood and cerebral spinal fluid (CSF) will be collected to measure markers of protein modification by dicarbonyls (IsoLGs- \& MDA), pTau-181, YKL-40, and NF-L.

Read the detailed description

This is a phase 1b/2a, randomized, double-blind, placebo-controlled, parallel group dose finding and biomarker study to evaluate the safety, tolerability, and biomarker activity of 2-HOBA in 48 MCI/AD participants. Participants will be randomized 1:1:1:1 to receive 250 mg BID, 250 and 500 mg 2-HOBA acetate TID or placebo for 12 weeks. Blood and CSF will be collected to measure markers of protein modification by dicarbonyls (IsoLGs- \& MDA), pTau-181, YKL-40, and NF-L. Investigators anticipate screening 120 subjects to randomize up to 60 subjects with the goal of 48 patients completing the study (allowing for up to 25% dropout) for the 12-week study.

The primary aims of this project are to 1) Provide proof-of-concept that 2-HOBA protects proteins from covalent modification by inhibiting lysine-reacting dicarbonyls in the human brain. Investigators hypothesize that 12 weeks of 2-HOBA treatment will significantly reduce CSF levels of the dilysyl-MDA and IsoLG adduct of CSF proteins in a dose-responsive relationship. 2) Evaluate whether 2-HOBA is safe for extended use in patients with early AD. Investigators hypothesize that 2-HOBA will be safe and well tolerated through 12 weeks of use. Tolerability will be assessed by monitoring symptoms, adverse events, vital signs, ECG, and safety labs during the study.

The secondary aims are to evaluate the effect of 2-HOBA treatment on AD biomarkers, brain inflammation, disease severity, and cognitive performance.

Being tested
2-hydroxybenzylamine acetate, Placebo
Keywords
Mild Cognitive Impairment, Alzheimer Disease
Medical subject headings
Alzheimer Disease, Cognitive Dysfunction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 2-hydroxybenzylamine acetateDrug

    Also called 2-HOBA

    2-hydroxybenzylamine acetate (2-HOBA) is taken daily for 12 weeks

  • PlaceboOther

    Placebo taken three times per day for 12 weeks.

Study groups in NCT06432166
Study groupRoleWhat they receive
PlaceboPlacebo comparatorPlacebo treatment TID for 12 weeks.
Receives: Other: Placebo
250 mg 2-HOBA acetate BIDActive comparator250 mg of 2-hydroxybenzylamine (2-HOBA) acetate BID for 12 weeks.
Receives: Drug: 2-hydroxybenzylamine acetate
250 mg 2-HOBA acetate TIDActive comparator250 mg of 2-hydroxybenzylamine (2-HOBA) acetate TID for 12 weeks.
Receives: Drug: 2-hydroxybenzylamine acetate
500 mg 2-HOBA acetateActive comparator500 mg of 2-hydroxybenzylamine (2-HOBA) acetate TID for 12 weeks.
Receives: Drug: 2-hydroxybenzylamine acetate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Safety/Tolerability (adverse events)

    Rates of adverse events will be compared between active and placebo arms and presented as summary statistics.

    Measured: Baseline to week 12

  2. Change in dicarbonyl protein adducts

    Change in CSF levels of the dilysyl-malondialdehyde crosslink and the lysyl-levuglandin adduct of CSF proteins in a dose-responsive relationship

    Measured: Baseline to week 12

Secondary outcomes (6)
  1. Compliance

    Treatment compliance will be assessed through pill counts at Week 8 and 16

    Measured: Baseline to week 12

  2. Measurement of biomarker, p-Tau181

    Change in phosphorylated-Tau-181 levels in CSF and plasma:

    Measured: Baseline to week 12

  3. Measurement biomarker, human cartilage glycoprotein 39 (YKL-4)

    Change in plasma concentration of human cartilage glycoprotein 39 (YKL-4)

    Measured: Baseline to week 12

  4. Measurment of biomarker, neurofilaments light chain protein (NF-L)

    Change in the concentration of neurofilaments light chain protein (NF-L) in CSF and plasma

    Measured: Baseline to week 12

  5. Measurement of biomarker, F2-Isoprostanes

    Change in concentration F2-Isoprostanes in plasma and urine:

    Measured: Baseline to week 12

  6. Measurement of biomarker, 8-hydroxy-2'-deoxyguanosine

    Change in concentration of 8-hydroxy-2'-deoxyguanosine in plasma

    Measured: Baseline to week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 May 2024
  2. Study start1 Sep 2026 (estimated)
  3. Primary completion30 Dec 2028 (estimated)
  4. Study completion30 Jun 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
A phase 1b/2a, randomized, double-blind, placebo-controlled, parallel group dose finding and biomarker study.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
48 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06432166
Sponsor's protocol ID
MTI2024-CS01
Other IDs
RC-201910-2019696, IRB 231544
Acronym
2-HOBA
Status last verified
Sep 2026
First submitted
14 May 2024
Last updated
24 Sep 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing 2-hydroxybenzylamine acetate in people with Alzheimer Disease and Mild Cognitive Impairment, run by MTI Biotech Inc at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 29 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 24 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact John A. Rathmacher, Ph.D. (515-296-9916, rathmacher@mtibiotech.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Safety/Tolerability (adverse events) (time frame: Baseline to week 12). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Sep 2026.

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