Healthy Volunteers
Conditions
Brief summary
This is a Phase 1, randomized, double-blind, placebo-controlled, single- and multiple-ascending oral dose study conducted in three parts.
Interventions
Oral dose(s)
Oral dose(s)
Sponsors
Study design
Eligibility
Inclusion criteria
Key Inclusion Criteria: * Body mass index 18.5 to 35.0 kg/m², inclusive, and body weight of at least 50.0 kg at screening * In good health, determined by no clinically significant findings from medical history, physical examination, and vital sign measurements * Women of non-childbearing potential and men using contraceptive measures Key
Exclusion criteria
* History of clinically significant hematological, renal, pancreatic, gastrointestinal, hepatic, cardiovascular, metabolic, endocrine, immunological, allergic disease, or other major disorders * History of asthma, chronic obstructive pulmonary disease, or emphysema * Clinically significant neurologic disorder * History of stomach or intestinal surgery or resection * History of malignancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| PK parameter: Apparent terminal elimination half-life (t1/2) of DNL201 in plasma | Up to 10 days |
| PK parameter: Area under the concentration-time curve from time zero to the time of last quantifiable concentration (AUC[0-last]) of DNL201 in plasma | Up to 10 days |
| PK parameter: The area under the concentration-time curve over a dosing interval (AUC0-τ) of DNL201 in plasma (multiple dosing only) | Up to 10 days |
| PK parameter: Maximum observed concentration (Cmax) of DNL201 in plasma | Up to 10 days |
| Incidence of treatment-emergent adverse events (TEAEs) including serious adverse events (SAEs), and discontinuations due to TEAEs | Up to 20 days |
| PK parameter: Time to maximum observed concentration (Tmax) of DNL201 in plasma | Up to 10 days |
| PK parameter: The area under the concentration-time curve from time zero extrapolated to infinity (AUC0-∞) of DNL201 in plasma (single dosing only) | Up to 10 days |
Secondary
| Measure | Time frame |
|---|---|
| The pharmacodynamics of DNL201 in whole blood as measured by the percent change from baseline in pS935 | Up to 10 days |
| Concentration of DNL201 in cerebrospinal fluid (CSF) (following selected single and multiple doses) | Up to 10 days |
Countries
United States