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Completed

NCT Number: NCT00672399

Electrophysiological Effects of a Single 10 μg Dose of Exenatide on the 12-Lead Electrocardiogram QT Interval in Healthy Subjects

This Phase 1, randomized, three period, placebo- and positive-controlled,double-blind, double-dummy, crossover study will be performed with approximately 80 healthy male and female subjects. The effects of single doses of exenatide (10 μg, subcutaneous), moxifloxacin (400 mg, oral) or placebo(subcutaneous or oral) on QT interval will be assessed.

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Key information

Conditions

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Reseach Site, Derriford, Plymouth, United Kingdom

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Are between the ages of 18 and 65 years, inclusive.
  • Have body mass index (BMI) between 19 and 35 kg/m2, inclusive.
  • If females, are not of child-bearing potential due to surgical sterilisation (hysterectomy or bilateral oophorectomy or tubal ligation) or menopause. Women with an intact uterus are deemed postmenopausal if they have had cessation of menses for at least 1 year or 6 to 12 months of spontaneous amenorrhea with follicle stimulating hormone >40 IU/mL; age ≥45 years; not taking oral contraceptives for at least 1 year; and otherwise healthy.
  • Subjects receiving hormone replacement therapy (HRT) or thyroxine as replacement therapy may participate providing they have been on stable therapy for at least 3 months and have a normal thyroid stimulating hormone (TSH) value.

Exclusion criteria

  • Have received treatment within the last 30 days with a drug that has not received regulatory approval for any indication at the time of study entry.
  • Known allergies to exenatide or excipients, moxifloxacin or related compounds, or a history of multiple adverse drug allergies of any origin.
  • Family history of sudden death.
  • Personal history of unexplained syncope within last year.
  • History or presence of cardiovascular (myocardial infarction, cerebrovascular accident, venous thromboembolism), respiratory, hepatic, renal, GI, endocrine, haematological, or neurological disorders.
  • Evidence or history of Long QT Syndrome or significant active cardiac disease (e.g., arrhythmia, hypertension, congestive heart failure, hypokalaemia, mitral valve regurgitation, endocarditis, coronary artery heart disease), or symptoms of angina pectoris or transient ischaemic attacks within the previous 6 months.
  • Females who are lactating.
  • Have previously completed or withdrawn from this study or any other study investigating exenatide.
  • Evidence of human immunodeficiency virus (HIV) and/or positive human HIV antibodies.
  • Evidence of hepatitis C and/or positive hepatitis C antibody.
  • Evidence of hepatitis B and/or positive hepatitis B surface antigen.
  • Use of over-the-counter or prescription medication (other than, for example, thyroid replacement, occasional intake of paracetamol, or vitamin or mineral supplements) 7 and 14 days, respectively, before dosing and throughout the study.
  • Cumulative blood donation of more than 500 mL within the last 3 months.
  • Subjects who have an average weekly alcohol intake that exceeds 28 units per week (males) and 21 units per week (females), or subjects unwilling to stop alcohol consumption for the duration of the study(1 unit = 12 oz or 360 mL of beer; 5 oz or 150 mL of wine; 1.5 oz or 45 mL of distilled spirits).
  • Subjects who smoke or have smoked within 28 days of their screening visit and who are unable to abide by the study restrictions.

Treatment and study plan

exenatide

Drug

Subcutaneously injected, 10 mcg, single doses

Other names: Byetta

moxifloxacin

Drug

oral, 400 mg tablet, single doses

Placebo

Drug

Subcutaneously injucted in an amount equivalent to exenatide; or orally as a tablet identical in appearance to Moxifloxacin. Both are single doses

Primary outcomes

  1. Comparison of exenatide's effect on QT interval when compared to placebo

    Time frame: single doses - measurements at 1, 2, 3, 4, 5.5 and 10 hours after dosing

    To determine, in healthy subjects, that a single 10 μg dose of exenatide does not differ from placebo in the mean change from predose in 12-lead ECG correct QT (QTc) interval measurements

Secondary outcomes

  1. Measurement of any QTcF changes following exenatide versus glucose, potassium, and insulin

    Time frame: single doses - samples drawn at and EKGs at -15 min, hours 1, 2, 3, 4, 5.5, 10

    To explore the influence of potential physiological covariates such as plasma insulin, plasma glucose, and potassium on QTc interval in healthy subjects

  2. Assessment of plasma exenatide concentrations and QTc interval

    Time frame: During Periods I, II, and III, ECGs should be recorded at the following

    Evaluation of the relationship between plasma exenatide concentrations and QTc interval in healthy subjects

Sponsors and collaborators

Lead sponsor

AstraZeneca

Industry

Collaborators

  • Eli Lilly and Company

Registry information

Official study title

A Placebo- and Positive-Controlled Study of the Electrophysiological Effects of a Single 10 μg Dose of Exenatide on the 12-Lead Electrocardiogram QT Interval in Healthy Subjects

Important dates

Study start
2008
Primary completion
2008
Study completion
2008
First posted
May 6, 2008
Registry last updated
Feb 24, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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