Cohort will have a total 6 subjects: SAD (2 subjects receiving placebo and 4 subjects receiving active AMXT 1501 dicaprate);

SAD cohorts are defined as follows:

* Cohort 1: One placebo and one AMXT 1501 dicaprate subject will be treated as sentinel subjects receiving one tablet each of their assigned treatment. Assuming no intolerance is noted after at least 3 days, the remaining cohort subjects (placebo, 1 subject and AMXT 1501 dicaprate, 3 subjects) will be treated.
* Cohort 2: 2 subjects 2 placebo each and 4 subjects 2 AMXT 1501 dicaprate tablets each
* Cohort 3: 2 subjects 4 placebos each and 4 subjects 4 AMXT 1501 dicaprate tablets each
* Cohort 4: 2 subjects 8 placebos each and 4 subjects 8 AMXT 1501 dicaprate tablets each

Each cohort will have a total 6 subjects: MAD (2 subjects receiving placebo and 4 subjects receiving active AMXT 1501 dicaprate); MAD cohorts will receive dosing once daily for 14 consecutive days. Dosing will be contingent on adequate tolerance in Cohorts 1-5.

* Cohort 6: 2 subjects 2 placebos each; 4 subjects 2 AMXT 1501 dicaprate tablets each
* Cohort 7: 2 subjects 4 placebos each; 4 subjects 4 AMXT 1501 dicaprate tablets each
* Cohort 8: 2 subjects 8 placebos each; 4 subjects 8 AMXT 1501 dicaprate tablets each

Each cohort will have a total 6 subjects: FE crossover (6 subjects receiving active AMXT 1501 dicaprate).

FE Crossover:

• Cohort 5: 6 new subjects will be randomized to a fed (n=3 standard meal) or fasted (n=3) group and administered the highest dose of AMXT 1501 dicaprate tolerated by previous cohorts. First dose and accompanying assessments will be referred to as Period 1. Subjects will then crossover to the opposite diet plan (fed or fasted) and receive a second administration of study treatment at the same dose level. The second dose and assessments are referred to as Period 2. There will be a 7-day washout between doses administered in Periods 1 and 2.

Study treatment will be provided in tablet form; each containing 128 mg AMXT 1501 dicaprate salt, 80 mg of which is AMXT 1501 freebase (active drug), plus excipients and are orally administered.

AMXT 1501

Reference Therapy, Dose and Route of Administration:

Placebo Tablets, orally administered

Placebo Oral Tablet

This is a Phase 1 study, which will assess the safety, PK, and pharmacodynamics (PD) of orally-administered AMXT 1501 dicaprate in normal healthy male volunteers.

The study is comprised of a total of 8 cohorts; 4 single ascending dose (SAD) cohorts, 1 Food Effect (FE) Crossover cohort, and 3 multiple ascending dose (MAD) cohorts. Tablets will be administered after an overnight fast (10 hours) with at least 250 mL water. No food will be administered (exception for "fed" subjects, see below) for one hour thereafter.

Each cohort will have a total 6 subjects: SAD and MAD (2 subjects receiving placebo and 4 subjects receiving active AMXT 1501 dicaprate); and FE crossover (6 subjects receiving active AMXT 1501 dicaprate).

The Phase 1 study, which will assess the safety, PK, and pharmacodynamics (PD) of orally-administered AMXT 1501 dicaprate in normal healthy male volunteers.

The study is comprised of a total of 8 cohorts; 4 single ascending dose (SAD) cohorts, 1 Food Effect (FE) Crossover cohort, and 3 multiple ascending dose (MAD) cohorts. Tablets will be administered after an overnight fast (10 hours) with at least 250 mL water. No food will be administered (exception for "fed" subjects, see below) for one hour thereafter.

Each cohort will have a total 6 subjects: SAD and MAD (2 subjects receiving placebo and 4 subjects receiving active AMXT 1501 dicaprate); and FE crossover (6 subjects receiving active AMXT 1501 dicaprate).

SAD cohorts are defined as follows:

* Cohort 1: One placebo and one AMXT 1501 dicaprate subject will be treated as sentinel subjects receiving one tablet each of their assigned treatment. Assuming no intolerance is noted after at least 3 days, the remaining cohort subjects (placebo, 1 subject and AMXT 1501 dicaprate, 3 subjects) will be treated.
* Cohort 2: 2 subjects 2 placebo each and 4 subjects 2 AMXT 1501 dicaprate tablets each
* Cohort 3: 2 subjects 4 placebos each and 4 subjects 4 AMXT 1501 dicaprate tablets each
* Cohort 4: 2 subjects 8 placebos each and 4 subjects 8 AMXT 1501 dicaprate tablets each

FE Crossover:

• Cohort 5: 6 new subjects will be randomized to a fed (n=3 standard meal) or fasted (n=3) group and administered one dose lower of the maximum tolerated AMXT 1501 dose in the previous SAD cohorts. First dose and accompanying assessments will be referred to as Period 1. Subjects will then crossover to the opposite diet plan (fed or fasted) and receive a second administration of study treatment at the same dose level. The second dose and assessments are referred to as Period 2. There will be a 7-day washout between doses administered in Periods 1 and 2.

MAD cohorts will receive dosing once daily for 14 consecutive days. Dosing will be contingent on adequate tolerance in Cohorts 1-5.

* Cohort 6: 2 subjects 2 placebos each; 4 subjects 2 AMXT 1501 dicaprate tablets each
* Cohort 7: 2 subjects 4 placebos each; 4 subjects 4 AMXT 1501 dicaprate tablets each
* Cohort 8: 2 subjects 8 placebos each; 4 subjects 8 AMXT 1501 dicaprate tablets each

The study is comprised of a total of 8 cohorts; 4 single ascending dose (SAD) cohorts, 1 Food Effect (FE) Crossover cohort, and 3 multiple ascending dose (MAD) cohorts. Tablets will be administered after an overnight fast (10 hours) with at least 250 mL water. No food will be administered (exception for "fed" subjects, see below) for one hour thereafter.

Each cohort will have a total 6 subjects: SAD and MAD (2 subjects receiving placebo and 4 subjects receiving active AMXT 1501 dicaprate); and FE crossover (6 subjects receiving active AMXT 1501 dicaprate).

If subject is given active drug or placebo is masked

Study of Orally-Administered AMXT 1501 Dicaprate in Normal Healthy Volunteers

Phase 1 Double-Blind, Placebo Controlled, Dose-Escalation Safety, Pharmacokinetic and Pharmacodynamic Study of Orally-Administered AMXT 1501 Dicaprate in Normal Healthy Volunteers

Determine the maximum feasible dose (MFD) of single and multiple doses of oral AMXT 1501 dicaprate in normal healthy volunteers.

Determine the pharmacokinetics (PK) of single and multiple doses of oral AMXT 1501 dicaprate in normal subjects, by using Area under the plasma concentration versus time curve (AUC)

Determine the pharmacokinetics (PK) of single and multiple doses of oral AMXT 1501 dicaprate in normal subjects, by using Peak Plasma Concentration (Cmax)

Assess influence of food on the PK of single doses of AMXT 1501 dicaprate, by comparing Area under the plasma concentration versus time curve (AUC)

Assess influence of food on the PK of single doses of AMXT 1501 dicaprate, by comparing Peak Plasma Concentration (Cmax)

To assess the effects of oral AMXT 1501 by testing for the appropriate level of the drug measured by the biomarker Use the biomarker test level to determine the recommended AMXT1501 Phase 2 dose.

Spots Global Cancer Trial Database for medication toxicity