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A Study to Assess the Effect of Verinurad on the Electric Activity of the Heart

A Single-Centre, Randomised, Double-Blind, Placebo-Controlled, 3-Period, Cross-Over Phase I Study to Investigate the Effect on the QTcF Interval of a Single Dose of 2 Different Doses of Verinurad, Each in Combination With Allopurinol 300 mg, Compared With Placebo In Healthy Volunteers

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04256629
Enrollment
24
Registered
2020-02-05
Start date
2020-03-03
Completion date
2020-08-21
Last updated
2022-01-31

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

Conditions

Healthy Volunteers (Intended Indication: Chronic Kidney Disease)

Keywords

Randomised, Double-Blind, Placebo-Controlled, 3-Period Crossover, Verinurad, Allopurinol, Phase 1

Brief summary

This study will be conducted to investigate the safety of verinurad in healthy volunteers in combination with allopurinol 300 mg, compared with placebo in particular its effect on electrocardiogram (ECG), with focus on the QT/QTc interval

Detailed description

This study will be conducted as a single-centre, randomised, placebo-controlled, double-blind, 3-period, crossover study to assess the effect on the QTcF interval of a single oral dose of verinurad 24 mg extended release (ER8) formulation (therapeutic exposure) or verinurad 40 mg immediate release (IR) formulation (supra-therapeutic exposure), each in combination with allopurinol 300 mg, compared to placebo in healthy subjects. There are 3 study treatments: * Treatment A: Verinurad 24 mg ER8 formulation co-administered with 300 mg allopurinol * Treatment B: Verinurad 40 mg IR formulation co-administered with 300 mg allopurinol * Treatment C: Matched placebos for both verinurad and allopurinol All subjects will receive a single dose of all 3 treatments (A, B, and C) in a cross-over design with wash-out periods of at least 7 days between each study dose administration. Subjects will be randomised to the treatment sequence (ABC, BCA, CAB, etc.) using William's Latin square. The treatments will be administered in a double-blind manner after an overnight fast of at least 10 hours. The study will comprise the following periods (visits): * Screening Period of maximum 28 days (Visit 1); * Three treatment periods of 3 days each, during which subjects will be resident at the study centre from the morning of the day before administration of the study dose until discharge 2 days after study dose administration (Visits 2 to 4); * Wash-out periods of at least 7 days between each study dose administration; * Final visit within 7 to 10 days after the last study dose administration (Visit 5). Each subject will be involved in the study for approximately 53 days and have 5 study visits.

Interventions

Randomized subjects will receive oral dose of verinurad

DRUGPlacebo

Randomized subjects will receive oral dose of placebo

DRUGAllopurinol

Randomized subjects will receive oral dose of allpurinol (Treatment A and B)

Sponsors

Parexel
CollaboratorINDUSTRY
AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Masking description

This study is double-blind with regards to treatment (verinurad and allopurinol or the matching placebos) at each dose level. Placebo will be matched with verinurad and allopurinol for appearance and amount. Subjects randomized to placebo will receive the same volume of oral suspension as subjects on active drug.

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

1. Provision of signed and dated, written informed consent prior to any study-specific procedures. 2. Healthy male and female subjects aged 18 to 50 years (inclusive) with suitable veins for cannulation or repeated venipuncture. 3. Females must have a negative pregnancy test at Screening and on admission to the study centre must be: (1) Not pregnant or currently lactating or breast-feeding. (2) Of non-childbearing potential confirmed at the Screening Visit by fulfilling one of the following criteria: (i) Post-menopausal defined as amenorrhea for at least 12 months or more following cessation of all exogenous hormonal treatments and follicle-stimulating hormone (FSH) levels in the post-menopausal range (FSH \>40 IU/mL). (ii) Documentation of irreversible surgical sterilization by hysterectomy, bilateral oophorectomy or bilateral salpingectomy but not tubal ligation. (3) OR, if of childbearing potential, must be willing to use an acceptable method of contraception to avoid pregnancy for the entire study period and 3 months after the Follow-up Visit. 4\. Have a body mass index (BMI) between 18 and 30 kg/m2 inclusive and weigh at least 50 kg and no more than 100 kg inclusive. 5\. Serum uric acid (sUA) \<300 μmol/L at Screening (Visit 1) and sUA \<330 μmol/L on Day -1 in every treatment period (Visit 2 to 4). Note: Since sUA levels might vary on a daily basis, subjects with sUA ≥330 μmol/L on Day -1 will be retested. Treatment on Day 1 will only be administered when the sUA level on Day -1 is \<330 μmol/L upon retesting. Subjects with sUA ≥330 μmol/L despite retesting, may conduct the treatment period at a later date when they have sUA \<330 μmol/L. 6\. Must be able to swallow multiple capsules/tablets.

Exclusion criteria

1. 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 study, or influence the results or the subject's ability to participate in the study. 2. History or presence of gastrointestinal (GI), hepatic or renal disease, or any other condition known to interfere with absorption, distribution, metabolism, or excretion of drugs. 3. Any clinically significant illness, medical/surgical procedure, or trauma within 4 weeks of the first administration of investigational medicinal product (IMP). 4. Subject has a positive test result for SARS-CoV-2 RT-PCR before randomisation. 5. Subject has clinical signs and symptoms consistent with COVID-19, eg, fever, dry cough, dyspnoea, sore throat, fatigue or confirmed infection by appropriate laboratory test within the last 4 weeks prior to screening or on admission. 6. History of severe COVID-19 (hospitalization, extracorporeal membrane oxygenation, mechanically ventilated). 7. Any clinically significant abnormalities in clinical chemistry, haematology, or urinalysis results, at Screening (Visit 1) as judged by the Investigator, including: (1) Alanine aminotransferase (ALT) \>1.5 × upper limit of normal (ULN) (2) Aspartate aminotransferase (AST) \>1.5 × ULN (3) Bilirubin (total) \>1.5 × ULN (4) Gamma glutamyl transpeptidase (GGT) \>1.5 × ULN 8. Any clinically significant abnormal findings in vital signs at Screening as judged by the Investigator, including: (1) Systolic blood pressure \<90 mmHg or \>140 mmHg (2) Diastolic blood pressure \<50 mmHg or \>90 mmHg (3) Heart rate \<50 or \>90 bpm 9. Carrier of the HLA-B\*58:01 allele. 10. Any clinically important abnormalities in rhythm, conduction or morphology of the 12 lead safety ECG and any clinically important abnormalities in the 12-lead safety ECG as considered by the Investigator that may interfere with the interpretation of QT interval corrected for heart rate using Fridericia's formula (QTcF), including abnormal ST T wave morphology, particularly in the Clinical Study Protocol (CSP)-defined primary lead for dECG analysis or left ventricular hypertrophy: 1. Prolonged QTcF \>450 ms or shortened QTcF \<340 ms or family history of long QT syndrome. 2. PR (PQ) interval shortening \<120 ms (PR \>110 ms but \<120 ms is acceptable if there is no evidence of ventricular pre-excitation). 3. PR (PQ) interval prolongation (\>220 ms) intermittent second (Wenckebach block while asleep is not exclusive) or third degree atrioventricular (AV) block, or AV dissociation. 4. Persistent or intermittent complete bundle branch block, incomplete bundle branch block, or intraventricular conduction delay with QRS \>110 ms. Subjects with QRS \>110 ms but \<115 ms are acceptable if there is no evidence of ventricular hypertrophy or pre-excitation. 11\. Any positive result on Screening for serum hepatitis B surface antigen OR anti-HBc antibody, hepatitis C antibody, and human immunodeficiency virus (HIV) antibody. 12\. Suspected or known Gilbert's syndrome. 13. Current smokers or those who have smoked or used nicotine products (including e cigarettes) within the 3 months prior to Screening. 14\. Known or suspected history of alcohol abuse or excessive intake of alcohol as judged by the Investigator. Excessive intake of alcohol defined as the regular consumption of more than 24 g of alcohol per day for men or 12 g per day for women. 15\. Positive screen for drugs of abuse, cotinine (nicotine) or alcohol at the Screening Visit or on each admission to the study centre. 16\. Excessive intake of caffeine-containing drinks or food (eg, coffee, tea, chocolate) as judged by the Investigator. Excessive intake of caffeine defined as the regular consumption of more than 600 mg of caffeine per day (eg, \>5 cups of coffee) or would likely be unable to refrain from the use of caffeine-containing beverages during confinement at the study site. 17\. Previous hypersensitivity reaction to allopurinol or any URAT1 inhibitor. 18. Subjects who are pregnant, breast-feeding or planning to become pregnant (pregnancy is to be avoided for the entire study period and 3 months after the Follow up Visit). 19\. Use of drugs with enzyme-inducing properties such as St John's Wort within 3 weeks prior to the first administration of IMP. 20\. Use of any prescribed or non-prescribed medication including antacids, analgesics (other than paracetamol/acetaminophen), herbal remedies, megadose vitamins (intake of 20 to 600 × the recommended daily dose) and minerals during the 2 weeks prior to the first administration of IMP or within 5 half-lives (whichever is longer). Hormone replacement therapy is allowed for females. 21\. Plasma donation within 1 month of Screening or any blood donation/blood loss \>500 mL during the 3 months prior to Screening. 22\. Has received another new chemical or biological entity (defined as a compound which has not been approved for marketing in the US) within 30 days or within 5 half lives (whichever is longer) of the first administration of IMP in this study. Note: Subjects consented and screened, but not randomised in this study or a previous Phase I study, are not excluded. 23\. Involvement of any AstraZeneca, Parexel or study site employee or their close relatives. 24\. Subjects who have previously received verinurad. 25. Subjects who cannot communicate reliably with the Investigator and/or are not able to read, speak and understand the German language. 26\. Judgment by the Investigator that the subject should not participate in the study if there are any ongoing or recent (ie, during the Screening Period) minor medical complaints that may interfere with the interpretation of the study data or are considered unlikely to comply with study procedures, restrictions and requirements. 27\. Subjects who are vegans or have medical dietary restrictions. 28. Vulnerable subjects, eg, kept in detention, protected adults under guardianship, trusteeship, or committed to an institution by governmental or juridical order. 29\. Subjects who are regularly exposed to COVID-19 (eg, health care professionals working in COVID-19 wards or at emergency departments) as part of their daily life.

Design outcomes

Primary

MeasureTime frameDescription
Model Predicted Baseline-corrected and Placebo-corrected QT Interval Corrected for Heart Rate (HR) Using Fridericia's Formula (QTcF)(ΔΔQTcF) (Derived From Concentration-QTcF Analysis) at Geometric Mean of Cmax of VerinuradBaseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseAssessment of the effect of a single dose of verinurad given as either a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of International Council for Harmonisation Guideline E14 and associated Questions and Answers \[ICH E14 Q&A\]), both in combination with allopurinol 300 mg, on the QTcF interval compared to placebo using a concentration-QTcF analysis. A linear mixed-effect concentration-QTcF model was used as the primary analysis. This is a result of the statistical model so it does not have values for every timepoint, it is just one set of numbers - summarizes data across all timepoints. No non-placebo-corrected QTcF data values were collected or could be obtained for each Arm/Group at Cmax of Verinurad.

Secondary

MeasureTime frameDescription
Baseline-corrected Heart Rate (ΔHR)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 hour (h) post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on heart rate (HR).
Baseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on HR.
Baseline-corrected RR Interval (ΔRR Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (RR).
Baseline-corrected PR Interval (ΔPR Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (PR).
Baseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (PR).
Baseline-corrected QRS Interval (ΔQRS Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QRS).
Baseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QRS).
Baseline-corrected QT Interval (ΔQT Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QT).
Baseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QT).
Baseline-corrected QTcF Interval (ΔQTcF Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QTcF).
Baseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QTcF).
Baseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-doseInvestigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (RR).
Area Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.
Maximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.
Time to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.
Time Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.
Terminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.
Time of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.
Apparent Total Body Clearance of Drug From Plasma After Extravascular Administration (Parent Drug Only) (CL/F) for Verinurad and AllopurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and allopurinol in healthy participants.
Apparent Volume of Distribution During the Terminal Phase After Extravascular Administration (Parent Drug Only) (Vz/F) for Verinurad and AllopurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and allopurinol in healthy participants.
Apparent Volume of Distribution at Steady State Following Extravascular Administration (Parent Drug Only) (Vss/F) for Verinurad and AllopurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and allopurinol in healthy participants.
Mean Residence Time of the Unchanged Drug in the Systemic Circulation From Zero to Infinity (MRT) for Verinurad and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the PK of verinurad and allopurinol in healthy participants.
Number of Participants With Adverse Events (AEs)From Screening (Day -28 to Day -2) until the Follow-up visit (7 to 10 Days After the Last Dose)Examination of the safety and tolerability of verinurad and allopurinol.
Area Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolDay 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-doseAssessment of the pharmacokinetic (PK) of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Countries

Germany

Participant flow

Recruitment details

This study was conducted in 24 healthy male and female participants at a single study center - Parexel Early Phase Clinical Unit (Berlin).

Pre-assignment details

The study consisted of a Screening Period of maximum 28 days. There were wash-out periods of at least 7 days between each study dose administration. The assessments were done as per the schedule of assessment.

Participants by arm

ArmCount
Treatment Sequence ABC
Randomised participants received single doses of all 3 study treatments (Treatment A: Verinurad 24 mg extended release \[ER8\] formulation co-administered with 300 mg allopurinol, Treatment B: Verinurad 40 mg immediate release \[IR\] formulation co-administered with 300 mg allopurinol, and Treatment C: Matching placebos for both verinurad and allopurinol) in a cross-over design with wash-out periods of at least 7 days between each study dose administration under fasted conditions.
4
Treatment Sequence BCA
Randomised participants received single doses of all 3 study treatments (Treatment B: Verinurad 40 mg IR formulation co-administered with 300 mg allopurinol, Treatment C: Matching placebos for both verinurad and allopurinol, and Treatment A: Verinurad 24 mg ER8 formulation co-administered with 300 mg allopurinol) in a cross-over design with wash-out periods of at least 7 days between each study dose administration under fasted conditions.
4
Treatment Sequence CAB
Randomised participants received single doses of all 3 study treatments (Treatment C: Matching placebos for both verinurad and allopurinol, Treatment A: Verinurad 24 mg ER8 formulation co-administered with 300 mg allopurinol, and Treatment B: Verinurad 40 mg IR formulation co-administered with 300 mg allopurinol) in a cross-over design with wash-out periods of at least 7 days between each study dose administration under fasted conditions.
4
Treatment Sequence ACB
Randomised participants received single doses of all 3 study treatments ( Treatment A: Verinurad 24 mg ER8 formulation co-administered with 300 mg allopurinol, Treatment C: Matching placebos for both verinurad and allopurinol, and Treatment B: Verinurad 40 mg IR formulation co-administered with 300 mg allopurinol) in a cross-over design with wash-out periods of at least 7 days between each study dose administration under fasted conditions.
4
Treatment Sequence BAC
Randomised participants received single doses of all 3 study treatments (Treatment B: Verinurad 40 mg IR formulation co-administered with 300 mg allopurinol, Treatment A: Verinurad 24 mg ER8 formulation co-administered with 300 mg allopurinol, and Treatment C: Matching placebos for both verinurad and allopurinol) in a cross-over design with wash-out periods of at least 7 days between each study dose administration under fasted conditions.
4
Treatment Sequence CBA
Randomised participants received single doses of all 3 study treatments (Treatment C: Matching placebos for both verinurad and allopurinol, Treatment B: Verinurad 40 mg IR formulation co-administered with 300 mg allopurinol, and Treatment A: Verinurad 24 mg ER8 formulation co-administered with 300 mg allopurinol) in a cross-over design with wash-out periods of at least 7 days between each study dose administration under fasted conditions.
4
Total24

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyAdverse Event000001
Overall StudyProtocol Violation010000

Baseline characteristics

CharacteristicTreatment Sequence ABCTotalTreatment Sequence CBATreatment Sequence BACTreatment Sequence ACBTreatment Sequence CABTreatment Sequence BCA
Age, Continuous38.8 Years
STANDARD_DEVIATION 13.35
33.7 Years
STANDARD_DEVIATION 10.44
34.0 Years
STANDARD_DEVIATION 12.36
31.0 Years
STANDARD_DEVIATION 12.25
35.5 Years
STANDARD_DEVIATION 7.14
32.8 Years
STANDARD_DEVIATION 14.08
30.0 Years
STANDARD_DEVIATION 6.16
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants22 Participants3 Participants4 Participants3 Participants4 Participants4 Participants
Sex: Female, Male
Female
1 Participants5 Participants0 Participants1 Participants1 Participants1 Participants1 Participants
Sex: Female, Male
Male
3 Participants19 Participants4 Participants3 Participants3 Participants3 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 220 / 240 / 23
other
Total, other adverse events
8 / 224 / 245 / 23
serious
Total, serious adverse events
0 / 220 / 240 / 23

Outcome results

Primary

Model Predicted Baseline-corrected and Placebo-corrected QT Interval Corrected for Heart Rate (HR) Using Fridericia's Formula (QTcF)(ΔΔQTcF) (Derived From Concentration-QTcF Analysis) at Geometric Mean of Cmax of Verinurad

Assessment of the effect of a single dose of verinurad given as either a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of International Council for Harmonisation Guideline E14 and associated Questions and Answers \[ICH E14 Q&A\]), both in combination with allopurinol 300 mg, on the QTcF interval compared to placebo using a concentration-QTcF analysis. A linear mixed-effect concentration-QTcF model was used as the primary analysis. This is a result of the statistical model so it does not have values for every timepoint, it is just one set of numbers - summarizes data across all timepoints. No non-placebo-corrected QTcF data values were collected or could be obtained for each Arm/Group at Cmax of Verinurad.

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: In the Primary Outcome we present the predicted value of ΔΔQTcF based on a statistical model created for the study. The results may be presented for the active arms only, since the placebo arm did not receive Verinurad and thus have no Cmax. Placebo-corrected and baseline adjusted QTcF, ∆∆QTcF with 90% confidence interval at the verinurad maximum concentration of interest is presented as the primary result from the analysis.

ArmMeasureValue (GEOMETRIC_MEAN)
Treatment AModel Predicted Baseline-corrected and Placebo-corrected QT Interval Corrected for Heart Rate (HR) Using Fridericia's Formula (QTcF)(ΔΔQTcF) (Derived From Concentration-QTcF Analysis) at Geometric Mean of Cmax of Verinurad-2.8 msec
Treatment BModel Predicted Baseline-corrected and Placebo-corrected QT Interval Corrected for Heart Rate (HR) Using Fridericia's Formula (QTcF)(ΔΔQTcF) (Derived From Concentration-QTcF Analysis) at Geometric Mean of Cmax of Verinurad-0.3 msec
Secondary

Apparent Total Body Clearance of Drug From Plasma After Extravascular Administration (Parent Drug Only) (CL/F) for Verinurad and Allopurinol

Assessment of the PK of verinurad and allopurinol in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/allopurinol.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment AApparent Total Body Clearance of Drug From Plasma After Extravascular Administration (Parent Drug Only) (CL/F) for Verinurad and AllopurinolVerinurad64.07 Liter/HourStandard Deviation 19.43
Treatment AApparent Total Body Clearance of Drug From Plasma After Extravascular Administration (Parent Drug Only) (CL/F) for Verinurad and AllopurinolAllopurinol71.03 Liter/HourStandard Deviation 26.45
Treatment BApparent Total Body Clearance of Drug From Plasma After Extravascular Administration (Parent Drug Only) (CL/F) for Verinurad and AllopurinolVerinurad45.09 Liter/HourStandard Deviation 13.13
Treatment BApparent Total Body Clearance of Drug From Plasma After Extravascular Administration (Parent Drug Only) (CL/F) for Verinurad and AllopurinolAllopurinol68.08 Liter/HourStandard Deviation 21.28
Secondary

Apparent Volume of Distribution at Steady State Following Extravascular Administration (Parent Drug Only) (Vss/F) for Verinurad and Allopurinol

Assessment of the PK of verinurad and allopurinol in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/allopurinol.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment AApparent Volume of Distribution at Steady State Following Extravascular Administration (Parent Drug Only) (Vss/F) for Verinurad and AllopurinolVerinurad1060 LiterStandard Deviation 336.6
Treatment AApparent Volume of Distribution at Steady State Following Extravascular Administration (Parent Drug Only) (Vss/F) for Verinurad and AllopurinolAllopurinol182.9 LiterStandard Deviation 79.88
Treatment BApparent Volume of Distribution at Steady State Following Extravascular Administration (Parent Drug Only) (Vss/F) for Verinurad and AllopurinolVerinurad448.6 LiterStandard Deviation 227.5
Treatment BApparent Volume of Distribution at Steady State Following Extravascular Administration (Parent Drug Only) (Vss/F) for Verinurad and AllopurinolAllopurinol165.3 LiterStandard Deviation 61.06
Secondary

Apparent Volume of Distribution During the Terminal Phase After Extravascular Administration (Parent Drug Only) (Vz/F) for Verinurad and Allopurinol

Assessment of the PK of verinurad and allopurinol in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/allopurinol.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment AApparent Volume of Distribution During the Terminal Phase After Extravascular Administration (Parent Drug Only) (Vz/F) for Verinurad and AllopurinolVerinurad1342 LiterStandard Deviation 500.1
Treatment AApparent Volume of Distribution During the Terminal Phase After Extravascular Administration (Parent Drug Only) (Vz/F) for Verinurad and AllopurinolAllopurinol103.6 LiterStandard Deviation 45.48
Treatment BApparent Volume of Distribution During the Terminal Phase After Extravascular Administration (Parent Drug Only) (Vz/F) for Verinurad and AllopurinolVerinurad856.1 LiterStandard Deviation 413.5
Treatment BApparent Volume of Distribution During the Terminal Phase After Extravascular Administration (Parent Drug Only) (Vz/F) for Verinurad and AllopurinolAllopurinol97.96 LiterStandard Deviation 28.94
Secondary

Area Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the pharmacokinetic (PK) of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Treatment AArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolM1413.7 h*ng/mLGeometric Coefficient of Variation 41.2
Treatment AArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol4501 h*ng/mLGeometric Coefficient of Variation 37.83
Treatment AArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolM8447.2 h*ng/mLGeometric Coefficient of Variation 32.3
Treatment AArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol151100 h*ng/mLGeometric Coefficient of Variation 16.74
Treatment AArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad393.8 h*ng/mLGeometric Coefficient of Variation 34.99
Treatment BArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol145000 h*ng/mLGeometric Coefficient of Variation 17.02
Treatment BArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad918.7 h*ng/mLGeometric Coefficient of Variation 26.53
Treatment BArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolM1904.8 h*ng/mLGeometric Coefficient of Variation 34.49
Treatment BArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolM8895.0 h*ng/mLGeometric Coefficient of Variation 23.75
Treatment BArea Under Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol4617 h*ng/mLGeometric Coefficient of Variation 32.39
Secondary

Area Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Treatment AArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolM1383.2 h*ng/mLGeometric Coefficient of Variation 40
Treatment AArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol4408 h*ng/mLGeometric Coefficient of Variation 38
Treatment AArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolM8394.5 h*ng/mLGeometric Coefficient of Variation 30.32
Treatment AArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol136000 h*ng/mLGeometric Coefficient of Variation 15.67
Treatment AArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad360.2 h*ng/mLGeometric Coefficient of Variation 32.95
Treatment BArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol131400 h*ng/mLGeometric Coefficient of Variation 15.12
Treatment BArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad880.4 h*ng/mLGeometric Coefficient of Variation 26.67
Treatment BArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolM1865.4 h*ng/mLGeometric Coefficient of Variation 35.23
Treatment BArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolM8847.8 h*ng/mLGeometric Coefficient of Variation 25.35
Treatment BArea Under the Plasma Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC[0-t]) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol4524 h*ng/mLGeometric Coefficient of Variation 32.53
Secondary

Baseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on HR.

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 1.5 h-1.6 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 6 h-1.2 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 3 h-1.5 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 8 h1.0 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 1 h-0.9 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 12 h-2.1 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 4 h0.5 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 2/ 24 h-0.9 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 2 h-1.3 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 2/ 36 h-0.5 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 5 h0.1 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 3/ 48 h-0.4 bpm
Treatment ABaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 0.5 h-0.4 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 3/ 48 h-1.1 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 0.5 h-1.4 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 1 h-1.1 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 1.5 h-0.7 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 2 h-1.8 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 3 h-2.2 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 4 h-1.4 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 5 h-0.3 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 6 h-1.6 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 8 h-2.0 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 1/ 12 h-1.4 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 2/ 24 h0.7 bpm
Treatment BBaseline-corrected and Placebo-adjusted Heart Rate (ΔΔHR)Day 2/ 36 h0.5 bpm
Secondary

Baseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (PR).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 1.5 h-0.7 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 6 h-1.7 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 3 h1.7 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 8 h-0.1 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 1 h0.3 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 12 h-0.0 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 4 h-0.3 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 2/ 24 h-0.0 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 2 h-1.3 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 2/ 36 h3.1 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 5 h0.1 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 3/ 48 h0.2 msec
Treatment ABaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 0.5 h-0.5 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 3/ 48 h0.9 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 0.5 h0.0 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 1 h-0.3 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 1.5 h0.5 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 2 h-1.7 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 3 h0.4 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 4 h0.2 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 5 h-0.3 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 6 h0.4 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 8 h0.2 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 1/ 12 h0.3 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 2/ 24 h0.5 msec
Treatment BBaseline-corrected and Placebo-adjusted PR Interval (ΔΔPR Interval)Day 2/ 36 h2.8 msec
Secondary

Baseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (RR).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 1.5 h38.9 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 6 h21.0 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 3 h25.1 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 8 h-12.8 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 1 h22.2 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 12 h36.5 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 4 h-3.4 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 2/ 24 h15.1 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 2 h26.9 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 2/ 36 h5.7 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 5 h4.6 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 3/ 48 h6.5 msec
Treatment ABaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 0.5 h6.7 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 3/ 48 h14.8 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 0.5 h20.7 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 1 h23.3 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 1.5 h13.0 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 2 h26.9 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 3 h35.1 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 4 h18.8 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 5 h17.8 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 6 h19.7 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 8 h25.9 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 1/ 12 h22.1 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 2/ 24 h-6.8 msec
Treatment BBaseline-corrected and Placebo-adjusted RR Interval (ΔΔRR Interval)Day 2/ 36 h-7.1 msec
Secondary

Baseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QRS).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 1.5 h-0.8 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 6 h-0.5 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 3 h-0.2 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 8 h-1.0 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 1 h-0.9 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 12 h0.0 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 4 h-0.4 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 2/ 24 h-0.1 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 2 h-0.4 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 2/ 36 h0.1 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 5 h-0.4 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 3/ 48 h-0.2 msec
Treatment ABaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 0.5 h-0.4 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 3/ 48 h0.0 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 0.5 h-0.7 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 1 h-1.1 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 1.5 h-0.8 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 2 h-1.2 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 3 h-0.4 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 4 h-0.7 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 5 h-0.8 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 6 h-0.6 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 8 h-0.9 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 1/ 12 h-0.6 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 2/ 24 h-0.3 msec
Treatment BBaseline-corrected and Placebo-corrected QRS Interval (ΔΔQRS Interval)Day 2/ 36 h-0.0 msec
Secondary

Baseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QTcF).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 1.5 h-3.7 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 6 h-6.1 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 3 h-2.8 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 8 h-5.4 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 1 h-3.4 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 12 h-5.2 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 4 h-3.6 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 2/ 24 h-4.8 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 2 h-4.1 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 2/ 36 h-4.4 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 5 h-3.7 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 3/ 48 h-6.4 msec
Treatment ABaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 0.5 h-1.2 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 3/ 48 h-2.1 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 0.5 h-0.0 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 1 h-0.9 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 1.5 h-0.1 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 2 h-2.1 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 3 h-2.2 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 4 h-0.9 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 5 h-0.3 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 6 h-1.3 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 8 h-3.0 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 1/ 12 h-3.4 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 2/ 24 h0.3 msec
Treatment BBaseline-corrected and Placebo-corrected QTcF Interval (ΔΔQTcF Interval)Day 2/ 36 h-2.2 msec
Secondary

Baseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QT).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 1.5 h1.0 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 6 h-3.6 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 3 h0.3 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 8 h-7.2 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 1 h-0.7 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 12 h-0.8 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 4 h-4.3 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 2/ 24 h-2.5 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 2 h-0.7 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 2/ 36 h-3.3 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 5 h-3.4 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 3/ 48 h-5.7 msec
Treatment ABaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 0.5 h-0.3 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 3/ 48 h0.3 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 0.5 h3.0 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 1 h2.1 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 1.5 h1.7 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 2 h1.7 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 3 h2.3 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 4 h2.1 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 5 h1.4 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 6 h1.7 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 8 h0.8 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 1/ 12 h-0.4 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 2/ 24 h-0.5 msec
Treatment BBaseline-corrected and Placebo-corrected QT Interval (ΔΔQT Interval)Day 2/ 36 h-3.0 msec
Secondary

Baseline-corrected Heart Rate (ΔHR)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on heart rate (HR).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 hour (h) post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 2 h-1.9 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 1 h-0.9 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 4 h9.3 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 2/ 36 h9.1 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 2/ 24 h0.0 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 5 h6.4 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 0.5 h-0.8 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 1.5 h-2.3 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 6 h2.8 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 3/ 48 h4.9 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 12 h0.3 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 8 h9.6 Beats per minute (bpm)
Treatment ABaseline-corrected Heart Rate (ΔHR)Day 1/ 3 h-0.8 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 8 h6.5 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 12 h0.8 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 2/ 24 h1.4 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 2 h-2.5 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 2/ 36 h9.6 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 3/ 48 h3.9 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 3 h-1.7 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 4 h7.2 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 1 h-1.0 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 5 h5.8 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 6 h2.3 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 1.5 h-1.3 Beats per minute (bpm)
Treatment BBaseline-corrected Heart Rate (ΔHR)Day 1/ 0.5 h-2.0 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 3/ 48 h5.3 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 0.5 h-0.5 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 1.5 h-0.6 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 2 h-0.5 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 3 h0.6 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 4 h8.7 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 5 h6.2 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 6 h4.1 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 8 h8.5 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 12 h2.3 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 2/ 24 h0.9 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 2/ 36 h9.5 Beats per minute (bpm)
Treatment CBaseline-corrected Heart Rate (ΔHR)Day 1/ 1 h0.1 Beats per minute (bpm)
Secondary

Baseline-corrected PR Interval (ΔPR Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (PR).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 2/ 36 h0.5 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 8 h-6.1 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 4 h-3.5 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 1.5 h-1.8 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 6 h-4.6 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 5 h-4.0 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 0.5 h-1.3 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 1 h-0.4 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 2/ 24 h-1.0 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 2 h-1.2 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 3/ 48 h-0.7 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 12 h-1.0 msec
Treatment ABaseline-corrected PR Interval (ΔPR Interval)Day 1/ 3 h0.1 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 5 h-4.5 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 0.5 h-0.9 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 1 h-1.3 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 1.5 h-0.6 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 2 h-1.7 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 3 h-1.3 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 4 h-3.2 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 6 h-2.2 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 8 h-5.8 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 12 h-0.9 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 2/ 24 h-0.5 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 2/ 36 h0.8 msec
Treatment BBaseline-corrected PR Interval (ΔPR Interval)Day 3/ 48 h0.4 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 8 h-5.6 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 2 h0.2 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 2/ 36 h-2.4 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 12 h-1.0 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 1.5 h-0.8 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 0.5 h-0.8 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 2/ 24 h-1.0 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 5 h-3.6 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 4 h-2.7 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 1 h-0.7 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 6 h-2.6 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 1/ 3 h-1.6 msec
Treatment CBaseline-corrected PR Interval (ΔPR Interval)Day 3/ 48 h-0.7 msec
Secondary

Baseline-corrected QRS Interval (ΔQRS Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QRS).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 8 h-2.6 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 12 h-0.5 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 2 h0.0 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 2/ 36 h-0.6 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 3/ 48 h-1.0 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 2/ 24 h-1.1 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 5 h-0.3 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 3 h-0.6 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 1 h-0.7 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 4 h1.3 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 0.5 h-0.5 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 6 h-1.2 msec
Treatment ABaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 1.5 h-0.5 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 1 h-0.9 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 1.5 h-0.5 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 5 h-0.6 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 12 h-0.9 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 0.5 h-0.6 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 2/ 24 h-1.3 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 3 h-0.8 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 6 h-1.3 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 2/ 36 h-0.8 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 2 h-0.8 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 8 h-2.5 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 3/ 48 h-0.7 msec
Treatment BBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 4 h1.2 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 3/ 48 h-0.7 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 0.5 h0.0 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 1 h0.1 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 1.5 h0.3 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 2 h0.3 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 3 h-0.4 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 4 h1.7 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 5 h0.1 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 6 h-0.7 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 8 h-1.7 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 1/ 12 h-0.4 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 2/ 24 h-0.9 msec
Treatment CBaseline-corrected QRS Interval (ΔQRS Interval)Day 2/ 36 h-0.7 msec
Secondary

Baseline-corrected QTcF Interval (ΔQTcF Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QTcF).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 2/ 36 h-7.6 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 8 h-12.1 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 4 h-0.6 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 1.5 h-1.0 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 6 h-10.0 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 5 h-6.3 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 0.5 h-1.7 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 1 h-0.4 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 2/ 24 h-4.8 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 2 h0.5 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 3/ 48 h-5.8 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 12 h0.2 msec
Treatment ABaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 3 h0.7 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 5 h-2.5 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 0.5 h-0.3 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 1 h2.3 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 1.5 h2.7 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 2 h2.5 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 3 h1.2 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 4 h2.3 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 6 h-5.7 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 8 h-10.0 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 12 h2.2 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 2/ 24 h0.2 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 2/ 36 h-6.1 msec
Treatment BBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 3/ 48 h-2.0 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 8 h-7.0 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 2 h4.6 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 2/ 36 h-3.7 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 12 h5.3 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 1.5 h2.9 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 0.5 h-0.5 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 2/ 24 h0.0 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 5 h-2.5 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 4 h2.7 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 1 h3.1 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 6 h-4.0 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 1/ 3 h3.3 msec
Treatment CBaseline-corrected QTcF Interval (ΔQTcF Interval)Day 3/ 48 h0.3 msec
Secondary

Baseline-corrected QT Interval (ΔQT Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (QT).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 2/ 36 h-24.8 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 8 h-31.1 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 4 h-19.9 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 1.5 h4.8 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 6 h-16.0 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 5 h-19.5 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 0.5 h0.2 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 1 h1.5 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 2/ 24 h-4.9 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 2 h5.0 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 3/ 48 h-16.0 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 12 h-0.7 msec
Treatment ABaseline-corrected QT Interval (ΔQT Interval)Day 1/ 3 h2.1 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 5 h-14.1 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 0.5 h3.8 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 1 h4.5 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 1.5 h5.4 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 2 h7.3 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 3 h4.5 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 4 h-12.7 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 6 h-11.0 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 8 h-22.9 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 12 h0.3 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 2/ 24 h-2.7 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 2/ 36 h-24.1 msec
Treatment BBaseline-corrected QT Interval (ΔQT Interval)Day 3/ 48 h-10.0 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 8 h-23.9 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 2 h5.3 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 2/ 36 h-21.6 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 12 h0.3 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 1.5 h3.7 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 0.5 h0.4 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 2/ 24 h-2.5 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 5 h-15.9 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 4 h-15.6 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 1 h2.1 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 6 h-12.7 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 1/ 3 h1.8 msec
Treatment CBaseline-corrected QT Interval (ΔQT Interval)Day 3/ 48 h-10.7 msec
Secondary

Baseline-corrected RR Interval (ΔRR Interval)

Investigation of the effect of verinurad given either as a 24 mg ER8 formulation (clinical exposure) or a 40 mg IR formulation (exposure needed to waive positive control as per question 5.1 of ICH E14 Q&A), both in combination with allopurinol 300 mg, on additional dECG variable (RR).

Time frame: Baseline; Day 1: 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8 and 12 h post-dose; Day 2: 24 and 36 h post-dose; Day 3: 48 h post-dose

Population: The PD Analysis Set consisted of all participants in the Safety Analysis Set for whom baseline and post-baseline QTcF results from smoothed dECG data were available for at least 1 treatment period and who had no major protocol deviations thought to impact the analysis of the dECG data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for that particular day and time.

ArmMeasureGroupValue (MEAN)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 2/ 36 h-129.2 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 8 h-143.9 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 4 h-139.7 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 1.5 h47.1 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 6 h-45.4 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 5 h-98.8 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 0.5 h13.6 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 1 h14.8 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 2/ 24 h-1.8 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 2 h35.6 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 3/ 48 h-76.0 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 12 h-5.0 Milli second (msec)
Treatment ABaseline-corrected RR Interval (ΔRR Interval)Day 1/ 3 h11.3 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 5 h-82.6 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 0.5 h28.2 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 1 h15.8 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 1.5 h20.3 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 2 h36.5 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 3 h24.4 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 4 h-111.7 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 6 h-44.6 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 8 h-100.6 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 12 h-16.3 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 2/ 24 h-20.9 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 2/ 36 h-134.1 Milli second (msec)
Treatment BBaseline-corrected RR Interval (ΔRR Interval)Day 3/ 48 h-63.2 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 8 h-128.7 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 2 h6.9 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 2/ 36 h-132.0 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 12 h-39.9 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 1.5 h6.4 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 0.5 h6.7 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 2/ 24 h-17.4 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 5 h-101.9 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 4 h-133.8 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 1 h-8.3 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 6 h-66.7 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 1/ 3 h-12.2 Milli second (msec)
Treatment CBaseline-corrected RR Interval (ΔRR Interval)Day 3/ 48 h-81.3 Milli second (msec)
Secondary

Maximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Treatment AMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad56.57 ng/mLGeometric Coefficient of Variation 36.34
Treatment AMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol1610 ng/mLGeometric Coefficient of Variation 41.61
Treatment AMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM854.80 ng/mLGeometric Coefficient of Variation 31.28
Treatment AMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol7591 ng/mLGeometric Coefficient of Variation 16.77
Treatment AMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM154.92 ng/mLGeometric Coefficient of Variation 39.54
Treatment BMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol7528 ng/mLGeometric Coefficient of Variation 20.28
Treatment BMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad459.7 ng/mLGeometric Coefficient of Variation 47.74
Treatment BMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM1364.4 ng/mLGeometric Coefficient of Variation 48.92
Treatment BMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM8297.8 ng/mLGeometric Coefficient of Variation 39.44
Treatment BMaximum Observed Plasma Concentration (Cmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol1780 ng/mLGeometric Coefficient of Variation 38.53
Secondary

Mean Residence Time of the Unchanged Drug in the Systemic Circulation From Zero to Infinity (MRT) for Verinurad and Oxypurinol

Assessment of the PK of verinurad and allopurinol in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/allopurinol.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Treatment AMean Residence Time of the Unchanged Drug in the Systemic Circulation From Zero to Infinity (MRT) for Verinurad and OxypurinolVerinurad16.47 HourGeometric Coefficient of Variation 26.78
Treatment AMean Residence Time of the Unchanged Drug in the Systemic Circulation From Zero to Infinity (MRT) for Verinurad and OxypurinolAllopurinol2.517 HourGeometric Coefficient of Variation 24.44
Treatment BMean Residence Time of the Unchanged Drug in the Systemic Circulation From Zero to Infinity (MRT) for Verinurad and OxypurinolVerinurad9.320 HourGeometric Coefficient of Variation 34.79
Treatment BMean Residence Time of the Unchanged Drug in the Systemic Circulation From Zero to Infinity (MRT) for Verinurad and OxypurinolAllopurinol2.383 HourGeometric Coefficient of Variation 18.95
Secondary

Number of Participants With Adverse Events (AEs)

Examination of the safety and tolerability of verinurad and allopurinol.

Time frame: From Screening (Day -28 to Day -2) until the Follow-up visit (7 to 10 Days After the Last Dose)

Population: The Safety Analysis Set included all participants who received at least 1 dose of study drug (verinurad, allopurinol, and placebo) and for whom any safety post-dose data were available.

ArmMeasureGroupValue (NUMBER)
Treatment ANumber of Participants With Adverse Events (AEs)Any Serious adverse events (including events with outcome = death)0 Participants
Treatment ANumber of Participants With Adverse Events (AEs)Any AE leading to discontinuation of study drug0 Participants
Treatment ANumber of Participants With Adverse Events (AEs)Any AE8 Participants
Treatment ANumber of Participants With Adverse Events (AEs)Any AE leading to withdrawal from study0 Participants
Treatment ANumber of Participants With Adverse Events (AEs)Any AE with outcome = death0 Participants
Treatment BNumber of Participants With Adverse Events (AEs)Any AE leading to withdrawal from study1 Participants
Treatment BNumber of Participants With Adverse Events (AEs)Any Serious adverse events (including events with outcome = death)0 Participants
Treatment BNumber of Participants With Adverse Events (AEs)Any AE with outcome = death0 Participants
Treatment BNumber of Participants With Adverse Events (AEs)Any AE leading to discontinuation of study drug1 Participants
Treatment BNumber of Participants With Adverse Events (AEs)Any AE4 Participants
Treatment CNumber of Participants With Adverse Events (AEs)Any Serious adverse events (including events with outcome = death)0 Participants
Treatment CNumber of Participants With Adverse Events (AEs)Any AE leading to discontinuation of study drug0 Participants
Treatment CNumber of Participants With Adverse Events (AEs)Any AE leading to withdrawal from study0 Participants
Treatment CNumber of Participants With Adverse Events (AEs)Any AE with outcome = death0 Participants
Treatment CNumber of Participants With Adverse Events (AEs)Any AE5 Participants
Secondary

Terminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment ATerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolM114.30 HourStandard Deviation 4.991
Treatment ATerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol1.020 HourStandard Deviation 0.2327
Treatment ATerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad14.92 HourStandard Deviation 5.355
Treatment ATerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol14.27 HourStandard Deviation 4.119
Treatment ATerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolM816.89 HourStandard Deviation 8.832
Treatment BTerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol13.41 HourStandard Deviation 2.735
Treatment BTerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolM112.65 HourStandard Deviation 4.354
Treatment BTerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolM813.96 HourStandard Deviation 4.065
Treatment BTerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol1.012 HourStandard Deviation 0.109
Treatment BTerminal Half-life (t½λz) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad13.33 HourStandard Deviation 5.705
Secondary

Time Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (MEDIAN)
Treatment ATime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolM10.50 Hour
Treatment ATime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol0.00 Hour
Treatment ATime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolM80.50 Hour
Treatment ATime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol0.00 Hour
Treatment ATime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad0.50 Hour
Treatment BTime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol0.00 Hour
Treatment BTime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad0.00 Hour
Treatment BTime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolM10.00 Hour
Treatment BTime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolM80.00 Hour
Treatment BTime Delay Between Drug Administration and the First Observed Concentration in Plasma (Tlag) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol0.00 Hour
Secondary

Time of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (MEDIAN)
Treatment ATime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolM148.05 Hour
Treatment ATime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol8.00 Hour
Treatment ATime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolM848.05 Hour
Treatment ATime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol48.05 Hour
Treatment ATime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad48.05 Hour
Treatment BTime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol48.07 Hour
Treatment BTime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad48.07 Hour
Treatment BTime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolM148.07 Hour
Treatment BTime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolM848.07 Hour
Treatment BTime of Last Quantifiable Plasma Concentration (Tlast) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol7.03 Hour
Secondary

Time to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and Oxypurinol

Assessment of the PK of verinurad and its metabolites (M1 and M8) and allopurinol and its metabolite (oxypurinol) in healthy participants.

Time frame: Day 1: Pre-dose, 0.5, 1, 1.5, 2, 3, 4, 5, 6, 8, and 12 hours post-dose; Day 2: 24 and 36 hours post-dose; Day 3: 48 hours post-dose

Population: The PK Analysis Set consisted of all participants in the Safety Analysis Set for whom at least 1 reportable PK parameter could be calculated and who had no major protocol deviations thought to impact the analysis of the PK data. Here, number analyzed in each row signifies only the participants with available data that were analyzed for Verinurad/M1/M8/allopurinol/oxypurinol.

ArmMeasureGroupValue (MEDIAN)
Treatment ATime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM15.00 Hour
Treatment ATime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol1.50 Hour
Treatment ATime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM85.00 Hour
Treatment ATime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol5.00 Hour
Treatment ATime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad5.00 Hour
Treatment BTime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolOxypurinol3.00 Hour
Treatment BTime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolVerinurad1.02 Hour
Treatment BTime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM11.50 Hour
Treatment BTime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolM81.50 Hour
Treatment BTime to Reach Maximum Plasma Concentration (Tmax) for Verinurad, M1, M8, Allopurinol, and OxypurinolAllopurinol1.50 Hour

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026