A Study to Evaluate the Effect of Intravenous Zanamivir on Cardiac Conduction in Healthy Volunteers

NCT01353729 | Completed Phase 1

• 1 other identifier: 114346
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

Approximately 40 healthy subjects will be enrolled. Each subject will participate in the study for approximately 9 weeks. There will be four treatment sequences with a 5-7 day washout between treatments. Subjects will be admitted to the clinical unit on Day-1 of each dosing period and will remain in the unit until Day 2. Each subject will receive a single dose of each of the four treatments on Day 1 of each treatment period in a randomized fashion. Subjects will be discharged from the clinical research unit after the completion of all assessments on Day 2 of each period and return approximately 5-7 days later for the next dose period. Serial pharmacokinetic samples will be collected for up to 24 hours following each treatment.

Conditions

Influenza, Human

Keywords

12-lead ECG; cardiac repolarization; QTc; influenza; GR121167; zanamivir

Outcome Measures

Primary Outcomes (1)

• Change from baseline in QTcF for zanamivir

  9 weeks

Secondary Outcomes (22)

• Change from baseline in QTcB

  9 weeks

• Change from baseline in QTci

  9 weeks

• Change from baseline in QT

  9 weeks

• Change from baseline in Heart Rate

  9 weeks

• Pharmacokinetic parameters of Area under the concentration-time curve from time zero (pre-dose) to time of last quantifiable concentration from serum zanamivir concentration-time data

  9 weeks

Study Arms (4)

Treatment A

EXPERIMENTAL

Treatment A will include combination of zanamivir 600 mg IV plus placebo for moxifloxacin

Drug: 600 mg zanamivir + moxifloxacin placebo

Treatment B

EXPERIMENTAL

Treatment A will include combination of zanamivir 1200 mg IV plus placebo for moxifloxacin

Drug: 1200 mg zanamivir + moxifloxacin placebo

Treatment C

EXPERIMENTAL

Treatment C will include zanamivir placebo plus placebo for moxifloxacin

Drug: zanamivir placebo + moxifloxacin placebo

Treatment D

EXPERIMENTAL

Treatment D will include moxifloxacin plus zanamivir placebo

Drug: zanamivir placebo + 400 mg moxifloxacin

Interventions

600 mg zanamivir + moxifloxacin placebo DRUG

zanamivir 600 mg IV over 30 min x 1 dose + moxifloxacin placebo administered orally x 1 dose

Treatment A

1200 mg zanamivir + moxifloxacin placebo DRUG

zanamivir 1200 mg IV over 30 min x 1 dose + moxifloxacin placebo administered orally x 1 dose

Treatment B

zanamivir placebo + moxifloxacin placebo DRUG

zanamivir placebo IV over 30 min x 1 dose + moxifloxacin placebo administered orally x 1 dose

Treatment C

zanamivir placebo + 400 mg moxifloxacin DRUG

moxifloxacin 400 mg administered orally x 1 dose + zanamivir placebo IV over 30 min x 1 dose

Treatment D

Eligibility Criteria

• Age: 18 Years - 55 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Healthy as determined by a responsible and experienced physician, based on a medical evaluation including medical history, physical examination, laboratory tests and cardiac monitoring.
• Male or female between 18 and 55 years of age inclusive, at the time of signing the informed consent.
• A female subject is eligible to participate if she is of non-childbearing potential defined as pre-menopausal females with a documented tubal ligation or hysterectomy; or postmenopausal defined as 12 months of spontaneous amenorrhea or of child-bearing potential and agrees to use one of the contraception methods listed in the protocol.
• Body weight greater than or equal to 50 kg for men and greater than or equal to 45 kg for women and BMI within the range 18.5-31.0 kg/m2 (inclusive).
• AST, ALT, alkaline phosphatase and bilirubin less than or equal to 1.5xULN (isolated bilirubin \>1.5x upper limit of normal (ULN) is acceptable if bilirubin is fractionated and direct bilirubin \<35%).
• Capable of giving written informed consent, which includes agreement to comply with the requirements and restrictions listed in the consent form

You may not qualify if:

• The subject has a positive pre-study drug/alcohol screen. A minimum list of drugs that will be screened for include amphetamines, barbiturates, cocaine, opiates, cannabinoids and benzodiazepines.
• The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the first dosing day in the current study: 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer).
• History of sensitivity to any of the study medications, or components thereof, or a history of drug or other allergy that, in the opinion of the investigator or GSK Medical Monitor, contraindicates their participation.
• Use of prescription or non-prescription drugs, including vitamins, herbal and dietary supplements (including St John's Wort) within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is longer) prior to the first dose of study medication, unless in the opinion of the Investigator and GSK Medical Monitor the medication will not interfere with the study procedures or compromise subject safety.
• A history of sensitivity to heparin or heparin-induced thrombocytopenia should not be enrolled.
• History of regular alcohol consumption within 6 months of the study defined as an average weekly intake of \>14 drinks/week for men or \>7 drinks/week for women.
• Has a history or regular use of tobacco- or nicotine-containing products within 3 months prior to screening.
• Pregnant females as determined by positive serum or urine human chorionic gonadotrophin (hCG) test at screening or prior to dosing.
• Lactating females.
• Unwillingness or inability to follow the procedures outlined in the protocol.
• Subjects with a pre-existing condition interfering with normal gastrointestinal anatomy or motility, hepatic and/or renal function, that could interfere with the absorption, metabolism, and/or excretion of the study drugs. Subjects with a history of cholecystectomy, inflammatory bowel disease or pancreatitis should be excluded. Subjects with active peptic ulcer disease or a history of upper gastrointestinal bleeding
• A creatinine clearance less than 80mL/min as determined by Cockcroft-Gault equation.
• History/evidence of clinically significant pulmonary disease, renal or hepatobiliary diseases. Subjects with a history of nephrolithiasis will be excluded.
• A positive pre-study Human immunodeficiency virus (HIV) antibody test, a positive Hepatitis B surface antigen or Hepatitis C antibody result within 3 months of screening.
• Where participation in the study would result in donation of blood or blood products in excess of 500 mL within a 56 day period.

Sponsors & Collaborators

• GlaxoSmithKline: lead

Study Sites (1)

GSK Investigational Site

Austin, Texas, 78744, United States

Location

Related Publications (1)

• Lou Y, Gan J, Peppercorn A, Gould E, Weller S, Piscitelli SC, Patel P. Effect of intravenous zanamivir on cardiac repolarization. Pharmacotherapy. 2013 Jul;33(7):701-9. doi: 10.1002/phar.1261. Epub 2013 Apr 3.

  PMID: 23553534 BACKGROUND

Related Links

• Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.
• Results for study 114346 can be found on the GSK Clinical Study Register.

MeSH Terms

Conditions

Influenza, Human

Interventions

Zanamivir; Moxifloxacin

Condition Hierarchy (Ancestors)

Respiratory Tract Infections; Infections; Orthomyxoviridae Infections; RNA Virus Infections; Virus Diseases; Respiratory Tract Diseases

Intervention Hierarchy (Ancestors)

Guanidines; Amidines; Organic Chemicals; Sialic Acids; Neuraminic Acids; Sugar Acids; Acids, Acyclic; Carboxylic Acids; Hydroxy Acids; Pyrans; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Amino Sugars; Carbohydrates; Fluoroquinolones; 4-Quinolones; Quinolones; Quinolines; Heterocyclic Compounds, 2-Ring; Heterocyclic Compounds, Fused-Ring

Study Officials

• GSK Clinical Trials

  GlaxoSmithKline

  STUDY DIRECTOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Purpose: OTHER
• Intervention Model: CROSSOVER
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: May 12, 2011
• First Posted: May 16, 2011
• Study Start: May 19, 2011
• Primary Completion: August 2, 2011
• Study Completion: August 2, 2011
• Last Updated: July 21, 2017

Record last verified: 2017-07

Data Sharing

• IPD Sharing: Will share

Locations

US (1)