Multiple Ascending Dose Safety, Tolerability, PK Study of AL001 in Alzheimer's Disease Patients & Healthy Adult Subjects ("MAD")

Alzamend Neuro

Status and phase: Completed; Phase 2; Phase 1

Conditions: Alzheimer's Disease; Healthy Non-elderly and Elderly Adults

Treatments: Other: Placebo; Drug: AL001

Study type: Interventional

Funder types: Industry

Identifiers

NCT05363293

AL001-ALZ02

Details and patient eligibility

About

This is a Phase 1/2a, multi-center, placebo-controlled, double-blinded, randomized, multiple ascending dose (MAD) clinical trial to determine the safety and maximum tolerated dose of AL001. Up to 72 participants will be randomly assigned to receive study drug (active AL001) or placebo. The study consists of a 4-week screening period, a 14-day treatment period, and a 42-day follow-up period.

Full description

This is a Phase 1/2a, multi-center, placebo-controlled, double-blind, randomized, multiple ascending dose (MAD) clinical trial to determine the safety and maximum tolerated dose (MTD) of AL001, a crystal engineered lithium-salicylate-proline lithium delivery product that in nonclinical studies was shown to enhance and prolong the pharmacokinetic (PK) profile of lithium in the brain with enhanced efficacy potential in Alzheimer's models compared to lithium carbonate.

A maximum of approximately 72 participants will be enrolled. Participants will be randomly assigned to receive study drug (active AL001) or placebo in a ratio of 6:2, respectively, with 8 patients in each dosing cohort. Placebos will be pooled and regarded as a comparative cohort for safety.

Cohorts 2a, 3a, 4a and 5a will involve 1:1 healthy non-elderly and elderly subjects; cohorts 1, 2b, 3b, 4b and 5b will involve Alzheimer's subjects. The study will consist of a screening period (Days -28 to -2), a 14-day treatment period, and a 42-day follow-up period.

Enrollment: 65 patients

Sex: All

Ages: 50 to 80 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria (Alzheimer's Patients):

• Mild to moderate Alzheimer's disease (reasonably good physical health per Investigator's review of medical & surgical history, physical examination incl. neurological examination, 12-lead ECG, vital signs, and clinical laboratory tests)
• Able to understand and provide written informed consent and able to understand and follow instructions during study as determined by Investigator
• Subject and caregiver (if accompanying subject on site) willing to follow study procedures, willing & able to adhere to study restrictions and to be confined at the clinical research center for 16 days
• Fluent in English speaking, reading, and writing (for cognitive testing)
• Availability of medical history to provide information about the cognitive and functional level of the participant and of a qualified source such as the caregiver willing and able to provide information about the cognitive and functional level of the participant
• Males (non-vasectomized and vasectomized) must agree to use barrier contraception during the study until after Study Day 42
• Females must meet criteria if childbearing for contraception or be non-childbearing
• Clinical diagnosis of dementia (neurocognitive disorder) by a qualified clinician based on the DSM-V criteria
• Considered AD Stage 2, 3, or 4 based on the FDA classification
• Mini-Mental State Examination (MMSE) score between 16 and 26, inclusive, at Screening
• Negative result to COVID-19 test at Screening and admission (performed on Day -1)

Exclusion Criteria (Alzheimer's Patients):

• Clinically significant abnormalities (as determined by investigator based on medical history, physical examination, vital sign measurements, ECG findings, or clinical laboratory findings) that may affect subject safety or successful study participation

• Presence or history of any disorder that may prevent the successful completion of the study

• Other severe acute, chronic, or historical medical or psychiatric condition or laboratory abnormality or social circumstance that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in judgment of the Investigator, would make the subject inappropriate for entry into this study

• Evidence of clinically significant hematological, renal, endocrine, pulmonary, cardiovascular, dermatologic, muscular, or allergic disease or disorder (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of dosing) that may affect the safety or successful participant of the subject

• Any history or presence of gastrointestinal disease including chronic gastritis, hemorrhagic gastritis, peptic ulcers, duodenitis, diarrhea, or inflammatory bowel disease

• Any presence or history of acute or chronic liver diseases

• Any post-surgical or medical condition that may interfere with the absorption, distribution, metabolism, or excretion of the study treatment

• Any history of frequent headache or migraine

• Kidney disease (eGFR <60 mL/minute/1.73 m2)

• Uncontrolled tachy/brady arrhythmias, atrial fibrillation, or coronary heart failure

• Psychiatric or neurological illnesses (other than Alzheimer's disease), e.g., schizophrenia or other psychotic syndromes, Parkinson's disease and related movement disorders, myasthenia gravis, and seizure disorder/history of seizure disorder and/or severe head trauma (other than a single childhood febrile seizure)

• Presence of depression, except for mild depression with no acute episodes and stable condition, as determined by the Investigator

• History of untreated thyroid dysfunction that may be independently associated with cognitive impairment

• Central nervous system-related exclusions:

  1. any medical condition that (per investigator's judgement) would affect subject safety and scientific integrity of the study, e.g., untreated hypothyroidism (TSH >10 mIU/L) or vitamin B12 deficiency (<300 pg/mL) which may contribute to cognitive impairment, delirium, non-AD dementia and other encephalopathies
  2. Hachinski scale score >4 or evidence of stroke within the past 5 years

• Systemic related exclusions:

  1. Active cancer (except squamous cell and basal skin cancers) requiring chemo- or radiation therapy
  2. Positive test results for HIV, HBV, and HCV (unless quantitative PCR negative for HCV) at Screening
  3. Uncontrolled hypertension with a sustained blood pressure >160/100 mmHg at Screening, check-in (Day -1), and prior to the first study drug administration
  4. Fever (body temperature >101.4°F [38.5°C]), acute upper respiratory, or any other infections at Screening, check-in (Day -1), and prior to the first study drug administration

• Any history of drug hypersensitivity, asthma (with the exception of childhood asthma), urticaria or other severe allergic diathesis

• History of adverse - or hypersensitivity reaction to lithium, aspirin, salicylate, L-proline, or any test article excipient

• Female who is breastfeeding, pregnant according to the pregnancy test at Screening or prior to the first study drug administration, or planning to become pregnant during the study

• Magnetic resonance imaging (MRI)-related exclusion criteria (such as intracranial mass, evidence or other anatomical findings that might affect safety or causes of cognitive impairment as assessed by a qualified neurologist)

• History of drug abuse (barbiturate, amphetamine, benzodiazepine, cocaine, opiates and cannabis) within the last 12 months or a positive urine drug screen at Screening or Day -1

• Admitted alcohol abuse or history of alcohol use that may interfere with the subject's ability to comply with the protocol requirements or positive alcohol test at Screening or Day -1.

• More than moderate current alcohol consumption (subjects will be advised to consume no more than 2 units of alcohol/d and completely abstain from 72 hours prior to any visit.

• Treatment with haloperidol, antipsychotics, monoamine oxidase inhibitors, or neuromuscular blocking agents. An appropriate drug-free period will be required for washout, particularly for any especially long half-life drugs.

• Hyponatremia, defined as serum sodium laboratory value outside the standard reference range

• Suspected of having or at risk for Brugada Syndrome

• Prescribed or OTC use of a salicylate-containing product other than low-dose aspirin for cardioprotection (e.g., aspirin, bismuth sub-salicylate, salicylazosulfapyridine [sulfasalazine]) from 1 week before first dose to 1 week after last dosing; any other prescribed anticoagulant medication

• Consumption of poppy seeds or quinine (tonic water) 48 hours prior to Day 1

• Aspirin/nasal polyposis/asthma syndrome

• Participation in a clinical trial and receipt of an investigational medication within 30 days or 5 half-lives (if known), whichever is greater, prior to the first dose of the current study drug.

Inclusion criteria (Healthy Subjects):

• Non-elderly (≥18 and <65 years) and elderly (≥65 and ≤80 years) male and/or female adult subjects of any gender, race or ethnicity, determined to be generally in good physical health
• Willingness to use contraceptive methods as appropriate

Exclusion criteria (Healthy Subjects)

• Clinically significant abnormalities detected by medical history, physical examination, vital sign measurements, ECG findings, or clinical laboratory findings or any historical or present condition/ treatment that may prevent successful or safe study completion, including substance abuse, kidney disease (estimated glomerular filtration rate [eGFR] <60 mL/minute/1.73 m2) or hyponatremia
• Use of any medication on a chronic basis except an oral contraceptive, with appropriate washout of prescription, OTC, vitamins and herbal supplements
• Female pregnant or planning to be pregnant, or breastfeeding

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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65 participants in 9 patient groups

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 1

Experimental group

Description:

Participants will be randomized to receive AL001. When adequate safety data are available, a review will be done for all participants to make a dose-escalation or dose and/or regimen modification decision. This will be repeated for each cohort. A total of 9 cohorts will receive 5 different dose levels of AL001 in multiple ascending doses under fasted conditions up to tolerability/safety limits. Cohort 1 will include 8 AD subjects. In this cohort, 6 active and 2 placebo AD subjects (as per randomization code) will receive the following treatment or placebo: • Cohort 1: 60% of 450 mg lithium carbonate equivalent of AL001 (1890 mg AL001 daily ×14 days, given as 3 × 210 mg AL001 capsules TID)

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohorts 2a

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 2a (8 healthy subjects - 4 non-elderly adults and 4 elderly adults). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 2a: 100% 450 mg lithium carbonate equivalent of AL001 (3150 mg AL001 daily × 14 days, given as 5 × 210 mg AL001 capsules TID).

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 3a

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 3 will be sub-divided into 2 cohorts: Cohort 3a (8 healthy subjects - 4 non-elderly adults and 4 elderly adults) and Cohort 3b (8 AD subjects). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 3a and 3b: 140% of 450 mg lithium carbonate equivalent of AL001 (4410 mg AL001 daily × 14 days, given as 7 × 210 mg AL001 capsules TID)

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 4a

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 4a (8 healthy subjects - 4 non-elderly adults and 4 elderly adults). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 4a: 160% of 450 mg lithium carbonate equivalent of AL001 (5040 mg AL001 daily × 14 days, given as 8 × 210 mg AL001 capsules TID)

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 5a

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 5a (8 healthy subjects - 4 non-elderly adults and 4 elderly adults). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 5a: 200% of 450 mg lithium carbonate equivalent of AL001 (6300 mg AL001 daily × 14 days - lithium dose equivalent to that used for bipolar/affective disorders, given as 10 × 210 mg AL001 capsules TID)

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohorts 2b

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 2b (8 AD subjects). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 2b: 100% 450 mg lithium carbonate equivalent of AL001 (3150 mg AL001 daily × 14 days, given as 5 × 210 mg AL001 capsules TID).

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 3b

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 3b (8 AD subjects). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 3b: 140% of 450 mg lithium carbonate equivalent of AL001 (4410 mg AL001 daily × 14 days, given as 7 × 210 mg AL001 capsules TID)

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 4b

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 4b (8 AD subjects). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 4b: 160% of 450 mg lithium carbonate equivalent of AL001 (5040 mg AL001 daily × 14 days, given as 8 × 210 mg AL001 capsules TID)

Treatment:

Drug: AL001

Other: Placebo

Multiple Ascending Doses of AL001 vs. Placebo - Cohort 5b

Experimental group

Description:

The data from the previous cohort must be deemed safe before the next sequential cohort may be enrolled and dosing initiated. Cohort 5b (8 AD subjects). Per randomization, there will be 6 active and 2 placebo subjects in each cohort: • Cohort 5b: 200% of 450 mg lithium carbonate equivalent of AL001 (6300 mg AL001 daily × 14 days - lithium dose equivalent to that used for bipolar/affective disorders, given as 10 × 210 mg AL001 capsules TID).

Treatment:

Drug: AL001

Other: Placebo