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A Study of ORX142 in Healthy Adult Subjects, Including Subjects 18 to 80 Years of Age

Not Applicable
Recruiting
Conditions
Excessive Daytime Sleepiness
Interventions
Drug: ORX142 Tablets
Other: Placebo Tablets
Registration Number
NCT07082829
Lead Sponsor
Centessa Pharmaceuticals (UK) Limited
Brief Summary

Characterize the safety, tolerability and pharmacokinetics of ORX142 following single and multiple doses.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
208
Inclusion Criteria
  1. Healthy males or females as determined by assessments at the Screening Visit.

    For Parts A, B, C, and D:

    a. Participants must be at least 18 years of age and no more than 55 years of age at the Screening

  2. For Part E:

a .Participants must be at least 60 years of age and no more than 80 years of age at the Screening

Key

Exclusion Criteria
  1. Presence of significant cardiac, pulmonary, gastrointestinal, hepatic, renal, hematological, malignancy, endocrine, neurological, or psychiatric disease, as determined by medical history, physical examination, and screening investigations.
  2. History of seizure disorder, any other condition that increases the risk of seizure
  3. Has a clinically significant sleep disorder, including insomnia or sleep apnea.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Part A: SAD Study in Healthy AdultsORX142 Tablets-
Part A: SAD Study in Healthy AdultsPlacebo Tablets-
Part B: Food-effect Evaluation in Healthy AdultsORX142 Tablets-
Part C: MAD Study in Healthy AdultsORX142 Tablets-
Part D: Evaluation of a Single Dose in Healthy Older AdultsPlacebo Tablets-
Part C: MAD Study in Healthy AdultsPlacebo Tablets-
Part D: Evaluation of a Single Dose in Healthy Older AdultsORX142 Tablets-
Part E: PoC Study in Acutely Sleep-deprived Healthy AdultsORX142 Tablets-
Part E: PoC Study in Acutely Sleep-deprived Healthy AdultsPlacebo Tablets-
Primary Outcome Measures
NameTimeMethod
Part A: Incidence and severity of Treatment-Emergent Adverse Events of oral single ascending doses of ORX142 in healthy adult subjectsFrom enrollment to the Follow-Up Visit 7 days post-discharge

Safety and Tolerability as assessed by AEs and SAEs

Part E: Incidence and severity of Treatment-Emergent Adverse Events of oral of single oral doses of ORX142 in acutely sleep-deprived healthy adult subjectsFrom enrollment to the Follow-Up Visit 7 days post-discharge

Safety and Tolerability as assessed by AEs and SAEs

Part B: Incidence and severity of Treatment-Emergent Adverse Events of oral single ascending doses of ORX142 in the fasted and fed statesFrom enrollment to the Follow-Up Visit 7 days post-discharge

Safety and Tolerability as assessed by AEs and SAEs

Part D: Incidence and severity of Treatment-Emergent Adverse Events of oral single oral doses of ORX142 in healthy older adult subjectsFrom enrollment to the Follow-Up Visit 7 days post-discharge

Safety and Tolerability as assessed by AEs and SAEs

Part C: Incidence and severity of Treatment-Emergent Adverse Events of oral multiple ascending doses of ORX142 in healthy adult subjectsFrom enrollment to the Follow-Up Visit 7 days post-discharge

Safety and Tolerability as assessed by AEs and SAEs

Secondary Outcome Measures
NameTimeMethod
Cmax: Maximum Observed Plasma Concentration for ORX142 in subjects receiving ORX142Pre-dose and multiple post-dose timepoints, up to 48 hours
Tmax: Time of Maximum Concentration for ORX142 in subjects receiving ORX142Pre-dose and multiple post-dose timepoints, up to 48 hours
Tmax: Time of Maximum Concentration for ORX142 in subjects receiving ORX142 in the fast and fed statePre-dose and multiple post-dose timepoints, up to 48 hours
AUClast: Area Under the Plasma Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration for ORX142 in subjects receiving ORX142Pre-dose and multiple post-dose timepoints, up to 48 hours
T 1/2 (terminal elimination half-life): The time required for the terminal phase blood concentration of ORX142 to decrease by half in subjects receiving ORX142Pre-dose and multiple post-dose timepoints, up to 48 hours
AUClast: Area Under the Plasma Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration for ORX142 in subjects receiving ORX142 in the fast and fed statePre-dose and multiple post-dose timepoints, up to 48 hours
T 1/2 (terminal elimination half-life): The time required for the terminal phase blood concentration of ORX142 to decrease by half in subjects receiving ORX142 in the fast and fed statePre-dose and multiple post-dose timepoints, up to 48 hours
Mean sleep latency in the Maintenance of Wakefulness Test (MWT) for ORX142 versus placebo.Part E: Day 2
Cmax: Maximum Observed Plasma Concentration for ORX142 in subjects receiving ORX142 in the fasted and fed state.Pre-dose and multiple post-dose timepoints, up to 48 hours
Karolinska Sleepiness Scale score for ORX142 versus placeboPart E: Day 1-2

Trial Locations

Locations (1)

Site #1

🇺🇸

Lincoln, Nebraska, United States

Site #1
🇺🇸Lincoln, Nebraska, United States

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