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Double-Blind Randomized Crossover Trial to Access Electrocardiogram Effects of HPN-100

Phase 1
Completed
Conditions
Drug Toxicity
Interventions
Drug: Placebo
Drug: HPN-100 or Placebo
Registration Number
NCT01135680
Lead Sponsor
Amgen
Brief Summary

Arm 1:

Primary Objective:

• To determine the safety and tolerability of multiple ascending, supratherapeutic doses of HPN-100.

Arm 2:

Primary Objective:

• To assess the effects of steady-state levels of HPN-100 metabolites (4 phenylbutyric acid \[PBA\], phenylacetic acid \[PAA\], and phenylacetylglutamine \[PAGN\]) on 12-lead electrocardiogram (ECG) parameters in healthy male and female subjects with the primary endpoint being the time-matched change from baseline in the QT interval corrected for heart rate (HR) based on an individual correction method (QTcI).

Detailed Description

Assess the effects of steady-state levels of HPN-100 metabolites (4-phenylbutryic acid (PBA), phenylacetic acid (PAA), and phenylacetylglutamine (PAGN) on 12-lead electrocardiogram (ECG) parameters in health male and female subjects with the primary endpoint being the time-matched change from baseline in the QT interval corrected for heart rate(HR) based on an individual correction method (QTcl).

Study acquired from Horizon in 2024.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
98
Inclusion Criteria
  • Must be in good health
  • Negative hepatitis panel and negative HIV antibody screens
  • Females must be non-pregnant, non-lactating, and either postmenopausal or agree to to use adequate contraceptive methods throughout the study
  • Males must either be sterile or willing to use adequate contraceptive methods throughout the study
  • Willing and able to comply with all trial requirements
  • Able to comprehend and willing to sign an Informed Consent Form (ICF)
Exclusion Criteria
  • History or clinical manifestations of significant allergic, metabolic, hepatic, renal, endocrine, hematological, pulmonary, cardiovascular, gastrointestinal, urological, neurological, or psychiatric disorders
  • History of hypersensitivity or allergies to any drug compound
  • History of stomach or intestinal surgery or resection
  • History or presence of an abnormal ECG
  • History of alcoholism or drug addiction within 1 year
  • Use of any tobacco-containing or nicotine-containing products within 3 months
  • Participated in any other clinical trial of an investigational drug (or a medical device) within 30 days
  • Use of any prescription medications/products other than contraceptives within 14 days
  • Use of any over-the-counter, non-prescription preparations (including vitamins, minerals, and phytotherapeutic/herbal/plant-derived preparations) within 7 days
  • Test positive for drug(s) of abuse, ethanol, or cotinine
  • Have donated blood or blood components within 30 days
  • Have received blood products within 2 months
  • Have a history of unexplained syncope
  • Have a family history of unexplained sudden death

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Arm 1HPN-100Cohort A: 9 mL HPN-100 or placebo Cohort B: 12 mL HPN-100 placebo
Arm 1HPN-100 or PlaceboCohort A: 9 mL HPN-100 or placebo Cohort B: 12 mL HPN-100 placebo
Arm 2PlaceboThis study requires 4 periods. In each of the periods you will receive one of the dose groups listed below. At the completion of the study you will have participated in all 4 dose groups. The order in which you participate in each dose group will be randomly assigned. Dose Group A: 9 mL placebo via oral syringe 3 times daily for 3 days Dose Group B: single oral dose of 400 mg moxifloxacin on study Day 3 Dose Group C: 6 mL HPN-100 and 3 mL placebo via oral syringe 3 times daily for 3 days Dose Group D: 9 mL HPN-100 via oral syringe 3 times daily for 3 days
Arm 2HPN-100This study requires 4 periods. In each of the periods you will receive one of the dose groups listed below. At the completion of the study you will have participated in all 4 dose groups. The order in which you participate in each dose group will be randomly assigned. Dose Group A: 9 mL placebo via oral syringe 3 times daily for 3 days Dose Group B: single oral dose of 400 mg moxifloxacin on study Day 3 Dose Group C: 6 mL HPN-100 and 3 mL placebo via oral syringe 3 times daily for 3 days Dose Group D: 9 mL HPN-100 via oral syringe 3 times daily for 3 days
Arm 2MoxifloxacinThis study requires 4 periods. In each of the periods you will receive one of the dose groups listed below. At the completion of the study you will have participated in all 4 dose groups. The order in which you participate in each dose group will be randomly assigned. Dose Group A: 9 mL placebo via oral syringe 3 times daily for 3 days Dose Group B: single oral dose of 400 mg moxifloxacin on study Day 3 Dose Group C: 6 mL HPN-100 and 3 mL placebo via oral syringe 3 times daily for 3 days Dose Group D: 9 mL HPN-100 via oral syringe 3 times daily for 3 days
Primary Outcome Measures
NameTimeMethod
Safety and tolerability as measured by the rate and severity of adverse events in each treatment group.3-day treatment period
Changes from baseline QTcI as a measure of effects of study-state HPN-100 metabolites: PBA, PAA, and PAGN4 treatment regimens for 3 days with a 4 day minimum washout period between treatments
Secondary Outcome Measures
NameTimeMethod
Correlate time-matched QTcI change from baseline and serum levels of PBA, PAA, and PAGN drawn on Day 1, Day 2, Day 3, and Day 44 treatment regimens for 3 days with a 4 day minimum washout period between treatments
Number and severity of adverse events in each treatment group.4 treatment regimens for 3 days with a 4 day minimum washout period between treatments
Correlate time-matched ECG waveform changes to steady-state levels of HPN-100 by using QTcB and QTcF formulas to assess ECG morphologic changes.4 treatment regimens for 3 days with a 4 day minimum washout period between treatments
Gender differences in metabolism of HPN-100 as measured by time-matched serum levels of HTN-100, PBA, PAA, and PAGN via samples drawn on Day 1, Day 2, Day 3, and Day 4.4 treatment regimens for 3 days with a 4 day minimum washout period between treatments

Trial Locations

Locations (1)

Covance Clinical Pharmacology, Inc.

🇺🇸

Madison, Wisconsin, United States

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