Alzheimer Disease
Conditions
Brief summary
The purpose of this study is to evaluate the pharmacokinetics, safety, and tolerability of new liquid formulations of tricaprilin, with the aim of finding a suitable formulation to advance in development. This is a three-part, part-randomised study that include single-dose, food effect, and titration tolerability in up to 80 healthy participants.
Interventions
Tricaprilin formulated as AC-1202
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Tricaprilin Formulation
Placebo to tricaprilin formulation
Sponsors
Study design
Intervention model description
This is a three-part study. Part 1 (Formulation Optimisation): Participants will be assigned to all 4 different formulations of tricaprilin, with randomization to one of 4 sequences with a 2-day washout in between different formulations. There are 2 series in this part. Part 1 (Food Effect): Participants will be administered to 1 formulation of tricaprilin. There are 2 series in this part. Part 2 (Placebo Assessment): Participants will be randomised to 1 of 2 sequences (tricaprilin formulation - matching placebo; matching placebo - tricaprilin formulation) with a 2-day washout between periods. Part 3 (Titration Tolerability): Participants will be administered to either tricaprilin or a matching placebo.
Eligibility
Inclusion criteria
* Participant must be 18 to 65 years of age inclusive, at the time of signing the informed consent. * Participants who are overtly healthy (in the opinion of the Investigator) as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring * Body weight ≥45 kg and body mass index (BMI) within the range 18.0 - 32.0 kg/m2 (inclusive). * Male and female * Agrees to comply with study procedures including blood draws, confinement to clinic, meal requirements * Continuous non-smoker or infrequent smoker (no more than 10 cigarettes per week for at least 3 months prior to Screening)
Exclusion criteria
* History of, or current gastrointestinal (GI) conditions constituting a risk when taking the study treatment; or interfering with the interpretation of data, based on the Investigator's judgement * Past or intended use of over-the-counter or prescription medication including herbal medications within 7 days prior to dosing (paracetamol/acetaminophen \[up to 2 g per day\], hormone replacement therapy and hormonal contraception are permitted). * Participants on a ketogenic diet, low-fat diet or actively using medium chain triglycerides, ketone esters, or other ketogenic products.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Area under the concentration-time curve (AUC) of total ketones (β-hydroxybutyrate and acetoacetate) after single-dose administration of tricaprilin and placebo formulations (Part 1, Part 2) | 0 to 8 hours post-dose | AUC will be calculated from PK concentrations of total ketones (B-hydroxybutyrate and Acetoacetate) |
| Maximum observed concentration (Cmax) of total ketones (β-hydroxybutyrate and acetoacetate) after single-dose administration of tricaprilin and placebo formulations (Part 1, Part 2) | 0 to 8 hours post-dose | Cmax will be calculated from PK concentrations of total ketones (B-hydroxybutyrate and Acetoacetate) |
| Time of maximum concentration (Tmax) of total ketones (β-hydroxybutyrate and acetoacetate) after single-dose administration of tricaprilin and placebo formulations (Part 1, Part 2) | 0 to 8 hours post-dose | Tmax will be calculated from PK concentrations of total ketones (B-hydroxybutyrate and Acetoacetate) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Area under the concentration-time curve (AUC) of total ketones (β-hydroxybutyrate and acetoacetate) of tricaprilin and placebo formulations following a titration scheme (Part 3) | Days 15 and 21: 0 to 8 hours post-dose; Day 27: 0 to 24 hours post-dose | AUC will be calculated from PK concentrations of total ketones (B-hydroxybutyrate and Acetoacetate) |
| Incidence of treatment emergent adverse events | Baseline to end of treatment period | Adverse event incidence will be tabulated |
| Time of maximum concentration (Tmax) of total ketones (β-hydroxybutyrate and acetoacetate) of tricaprilin and placebo formulations following a titration scheme (Part 3) | Days 15 and 21: 0 to 8 hours post-dose; Day 27: 0 to 24 hours post-dose | Tmax will be calculated from PK concentrations of total ketones (B-hydroxybutyrate and Acetoacetate) |
| Maximum observed concentration (Cmax) of total ketones (β-hydroxybutyrate and acetoacetate) of tricaprilin and placebo formulations following a titration scheme (Part 3) | Days 15 and 21: 0 to 8 hours post-dose; Day 27: 0 to 24 hours post-dose | Cmax will be calculated from PK concentrations of total ketones (B-hydroxybutyrate and Acetoacetate) |
| Gastrointestinal side effects of single-dose administration of each of tricaprilin formulations and the placebo formulation (Parts 1, 2) assessed using the Baxter Retching Faces Scale | Pre-dose, 0.5, 1, 1.5, 2, 3 hours post-dose | The Baxter Retching Faces Scale is a pictorial scale rated from 0 to 10, with 6 faces depicting level of nausea/gastrointestinal discomfort. |
| Gastrointestinal side effects of single-dose administration of each of tricaprilin formulations and the placebo formulation (Parts 1, 2) assessed using the Pain Numerical Rating Scale | Pre-dose, 0.5, 1, 1.5, 2, 3 hours post-dose | The Pain Numerical Rating Scale 10-point numeric rating scale with participants instructed to rate any abdominal pain from 0 (no pain) to 10 (worst possible pain) |
Countries
Australia