Phase I Trial Evaluating the Pharmacokinetics of Single Ascending Oral Doses of IRL757 in Healthy Elderly Volunteers

Phase 1

Completed

• Conditions: Not Applicable As This is a Mass Balance/pharmacokinetic Study Performed in Healthy Subjects; Apathy
• Interventions: Drug: IRL757

• Registration Number: NCT06699628
• Lead Sponsor: Integrative Research Laboratories AB

Brief Summary

This is a phase I trial evaluating the pharmacokinetics of single ascending oral doses of IRL757 in healthy elderly volunteers.

Detailed Description

The trial is open label single oral dose trial in elderly healthy volunteers that will assess the pharmacokinetics of two dose levels of IRL757.

Eligible and consenting participants will be included in one of two dose groups, with 6 participants in each dose group.

At the screening visit, consenting subjects will be screened for eligibility according to study specific inclusion/exclusion criteria within 4 weeks before Investigational Medicinal Product (IMP) administration.

If eligible, participants will be admitted to the phase 1 clinic for the single dose administration of the IMP. All participants will receive active treatment (IRL757).

A follow-up visit will be performed for all participants, 5-10 days after IMP administration.

Blood and urine sampling will be performed for determination of pharmacokinetic parameters. Safety assessments will also be performed throughout the study: review and collection of adverse events, physical examination, suicidality ideation, electrocardiogram recording, vital signs, safety laboratory assessments.

Study Timeline

• Study Start: 2024-09-23
• Study First Submitted: 2024-10-22
• Status Verified: 2024-11
• Primary Completion: 2024-11-11
• Study Completion: 2024-11-11
• Study First Submitted QC: 2024-11-19
• Last Update Submitted: 2024-11-19
• Study First Posted: 2024-11-21
• Last Update Posted: 2024-11-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 12

Inclusion Criteria

• Willing and able to give written informed consent for participation in the trial.
• Healthy male or postmenopausal female subject at ≥ 65 and below 90 years of age.
• Weight of at least 50 kg and no more than 110 kg at screening.
• Clinically normal medical history, physical findings, vital signs, ECG and laboratory values at the time of screening, as judged by the Investigator.
• Willing to use highly effective methods of contraception

Exclusion Criteria

• History of any clinically significant disease or disorder which, in the opinion of the Investigator, may either put the subject at risk because of participation in the trial, or influence the results or the subject's ability to participate in the trial.

• GFR less than 45 mL/min at screening.

• History or present clinically significant psychiatric diagnosis, at discretion of the Investigator.

• Any suicidal ideation of type 4 or 5 in the C-SSRS in the past 3 months (i.e. active suicidal thought with intent but without specific plan, or active suicidal thought with plan and intent).

• History of seizures, including febrile seizure in childhood.

• Any clinically significant illness, medical/surgical procedure or trauma within four (4) weeks of the first administration of IMP.

• Any planned major surgery within the duration of the trial.

• Any positive result on screening for serum hepatitis B surface antigen, hepatitis C antibody and Human Immunodeficiency Virus (HIV).

• After 10 minutes supine rest at the time of screening, any vital signs values outside the following ranges:

  • Systolic blood pressure above 150 mm Hg
  • Diastolic blood pressure above 90 mm Hg
  • Heart rate less than 40 or above 90 beats per minute

• Prolonged QTcF (above 450 ms for male subjects or 470 ms for female subjects), cardiac arrhythmias or any clinically significant abnormalities in the resting ECG at the time of screening, as judged by the Investigator.

• History of severe allergy/hypersensitivity or on-going allergy/hypersensitivity, as judged by the Investigator, or history of hypersensitivity to drugs with a similar chemical structure or class to IRL757.

• Use of any prescribed or non-prescribed medication including antacids, analgesics, herbal remedies, vitamins and minerals within two (2) weeks prior to the first administration of IMP

• Administration of another new chemical entity (defined as a compound which has not been approved for marketing) or has participated in any other clinical trial that included drug treatment within three (3) months of the first administration of IMP in this trial.

• Current smokers or users of nicotine products. Irregular use of nicotine (e.g. smoking, snuffing, chewing tobacco) less than three (3) times per week is allowed before screening visit.

• History of alcohol abuse or excessive intake of alcohol, as judged by the Investigator.

• Positive screen for drugs of abuse at screening or on admission to the unit or positive screen for alcohol at screening or on admission to the unit prior to administration of the IMP.

• Use of anabolic steroids.

• Current excessive use of caffeine, as judged by the Investigator.

• Plasma donation within one (1) month of screening or any blood donation/blood loss more than 450 mL during the three (3) months prior to screening.

• Investigator considers the subject unlikely to comply with trial procedures, restrictions and requirements.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
IRL757	IRL757	IRL757, single dose

Primary Outcome Measures

Name	Time	Method
Determination of Maximum Plasma Concentration [Cmax] of IRL757 and its 3 main metabolites	PK followed until 48 hours
Determination of the AUC of IRL757 and its 3 main metabolites	PK followed until 48 hours
Determination of the time for maximum concentration [Tmax] of IRL757 and its 3 main metabolites	PK followed until 48 hours
Determination of the half-life [t1/2] of IRL757 and its 3 main metabolites	PK followed until 48 hours
Determination of the renal clearance (CLr) of IRL757 and its 3 main metabolites	PK followed until 48 hours

Secondary Outcome Measures

Name	Time	Method
Evaluation of frequency, seriousness and intensity of adverse events	Until 5-10 days after IMP administration
Description of physical examination findings	Until 5-10 days after IMP administration	Normal and abnormal findings will be summarized and categorized by dose group. The physical examination will include assessments of the head, eyes, ears, nose, throat, skin, thyroid, neurological, lungs, cardiovascular, abdomen (liver and spleen), lymph nodes and extremities.
Description of electrocardiogram findings	Until 5-10 days after IMP administration	Following parameters will be measured/calculated: heart rate, PR, QRS, QT and QTc intervals. The measures will be described as "normal", "abnormal, not clinically significant", or "abnormal, clinically significant". These will be summarized and categorized by dose group.
Description of vital signs findings	Until 5-10 days after IMP administration	The following parameters will be measured as vital signs: systolic and diastolic blood pressure, heart rate and respiratory rate. Measurements will be summarized by dose group.
Description of safety laboratory measurements	Until 5-10 days after IMP administration	Common laboratory parameters will be assessed: clinical biochemistry panel (including for example, ALAT, ASAT, ALP, CRP, CK, Calcium, Potassium, Sodium,...), hematology panel (including white blood cell differential count), coagulation parameters (INR, APTT).; Safety laboratory data will be summarized by dose group. Safety laboratory interpretations (abnormal, significant, non-significant) will be summarized by dose groups, using frequency tables.
Description of C-SSRS (Columbia Suicide Severity Rating Scale) findings	Until 5-10 days after IMP administration	A physician rates an individual's degree of suicidal ideation on a scale, ranging from "wish to be dead" to "active suicidal ideation with specific plan and intent". Any abnormal finding will be listed.

Trial Locations

Locations (1)

CTC Clinical Trial Consultants AB; 🇸🇪 Uppsala, Sweden