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Study to Investigate the Safety, Tolerability, and Pharmacokinetic Profile With Oral AB521 in Healthy Volunteers

A First-in-human, Participant and Investigator-blinded, Randomized, Placebo-controlled, Single-and Multiple-Ascending Dose Study With Drug-Drug Interaction, to Investigate the Safety, Tolerability, and Pharmacokinetic Profile of AB521, in Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05117554
Acronym
ARC-14
Enrollment
70
Registered
2021-11-11
Start date
2021-11-09
Completion date
2023-02-17
Last updated
2024-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Participants

Keywords

AB521, HIF-2α, hypoxia-inducible factor 2 alpha, Single ascending dose (SAD), Multiple ascending dose (MAD), Drug-drug interaction (DDI), casdatifan

Brief summary

This study will evaluate the safety and tolerability, pharmacokinetic, and pharmacodynamic profile, and drug-drug interaction (DDI) of casdatifan in healthy participants.

Interventions

Capsule

DRUGPlacebo

Capsule

DRUGMidazolam

Syrup solution

Sponsors

Arcus Biosciences, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Participants who are healthy volunteers (in the opinion of the investigator) as determined by pre-study medical history, physical examination, vital signs, and 12-lead electrocardiogram (ECG) * All clinical laboratory tests of blood and urine must be within the normal range or show no clinically relevant excursions from the normal range as judged by Principal Investigator at screening and admission. * Screening and randomization hemoglobin ≥for males and females is as follows: * SAD: male and female hemoglobin level ≥ 12.5 grams/ deciliters (g/dL) (7.7 millimoles/liters \[mmol/L\]) * MAD and DDI: male hemoglobin level ≥ 14.2 g/dL (8.8 mmol/L) and female hemoglobin level ≥ 12.5 g/dL (7.7 mmol/L). * Participants should have adequate peripheral venous access. * Body weight of 45 kilograms (kg) or greater and body mass index within the range of 18 to 32 kg/meters squared (m\^2) (inclusive) * Male participants must be vasectomized and have been vasectomized for at least 3 months prior to screening visit with confirmed history of azoospermia subsequent to the vasectomy procedure * Contraceptive use should be consistent with local regulations

Exclusion criteria

* Has any (acute or chronic \[including severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection\]) medical or psychiatric condition that, in the opinion of the investigator, could jeopardize or would compromise the study participant's ability to participate in this study * Has history or presence of cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrinological, hematological, cerebrovascular, neurological, or other major disorders capable of significantly altering the absorption, metabolism, or elimination of investigational drug; constituting a risk when taking the study intervention; or interfering with the interpretation of data in the opinion of the investigator * Abnormal blood pressure (BP) or pulse measurements at the Screening Visit or Day -2/-1 (Admission) in a supine position after 5 minutes of rest as follows: mean systolic BP ≥139 millimeters of mercury (mm Hg) or mean diastolic BP ≥89 mm Hg; mean pulse \< 40 beats per minute (bpm) or \> 100 bpm. * Liver enzyme test results: Alanine aminotransferase, aspartate aminotransferase, bilirubin, or alkaline phosphatase \>1.0x the upper limit of normal * Current or chronic history of liver disease or known hepatic or biliary abnormalities * Has 12-lead electrocardiogram with changes considered to be clinically significant at the Screening Visit or day of admission

Design outcomes

Primary

MeasureTime frame
Apparent Total Body Clearance of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Number of Participants With Abnormal Changes from Baseline in Vital Sign ValuesBaseline; Up to 21.5 Weeks
Maximum Observed Plasma Concentration (Cmax) of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Area Under the Plasma Concentration Time Curve From Hour 0 to the Last Sample With Measurable Plasma Concentrations (AUClast) of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Time of Occurrence of Cmax (tmax) of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Apparent Terminal Elimination Rate Constant (λz) of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Terminal Half-Life (t1/2) of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Area Under the Plasma Concentration Time Curve From Hour 0 to Infinity (AUCinf) of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Apparent Volume of Distribution of casdatifanmultiple timepoints up to approximately 21.5 Weeks
Number of Participants With Treatment-Emergent Adverse Events (TEAEs)Up to 21.5 Weeks
Number of Participants With Abnormal Changes From Baseline in Laboratory Parameter ValuesBaseline; Up to 21.5 Weeks

Secondary

MeasureTime frame
Area Under the Plasma Concentration Time Curve From Hour 0 to the Last Sample With Measurable Plasma Concentrations (AUClast) of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Time of Occurrence of Cmax (tmax) of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Apparent Terminal Elimination Rate Constant (λz) of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Terminal Half-Life (t1/2) of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Area Under the Plasma Concentration Time Curve From Hour 0 to Infinity (AUCinf) of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Apparent Volume of Distribution of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Apparent Total Body Clearance of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks
Maximum Observed Plasma Concentration (Cmax) of midazolam and 1 hydroxymidazolammultiple timepoints up to approximately 21.5 Weeks

Countries

Netherlands

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 6, 2026