The purpose of this study is to evaluate the ECG effects of 10, 40, and 80 mcg/hr buprenorphine delivered by BTDS alone, or by BTDS dosed with naltrexone, relative to placebo in healthy male and female subjects.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
328
Buprenorphine patch applied transdermally
Naltrexone tablet; 1 tablet taken orally every 12 hours
Matching placebos
PPD Phase I Clinic
Austin, Texas, United States
The Maximum Time-matched Change From Baseline in QT Data Corrected for Heart Rate (QTc), Placebo-corrected, Based on an Individual Correction (QTcI) Method (ΔΔQTcI)
The effects of 10 mcg/hr buprenorphine (Day 6) delivered by BTDS alone, or by BTDS dosed with naltrexone, and naltrexone alone on cardiac repolarization, were assessed based on the corrected QT interval since HR inversely affects QT duration. The time-matched analysis was conducted as the primary endpoint as recommended by ICH E14, with the 2-sided 90% confidence interval for each treatment at each time point showing the placebo- and baseline-corrected (ΔΔ) analysis for QTcI. The effect of BTDS 10 on QT intervals was compared with the moxifloxacin-positive control after placebo and baseline correction.
Time frame: Baseline to Day 6
The Maximum Time-matched Change From Baseline in QT Data Corrected for Heart Rate (QTc), Placebo-corrected, Based on an Individual Correction (QTcI) Method (ΔΔQTcI)
The effects of 40 mcg/hr buprenorphine (Day 13) delivered by BTDS alone, or by BTDS dosed with naltrexone, and naltrexone alone on cardiac repolarization, were assessed based on the corrected QT interval since HR inversely affects QT duration. The time-matched analysis was conducted as the primary endpoint as recommended by ICH E14, with the 2-sided 90% confidence interval for each treatment at each time point showing the placebo- and baseline-corrected (ΔΔ) analysis for QTcI. The effect of BTDS 40 on QT intervals was compared with the moxifloxacin-positive control after placebo and baseline correction.
Time frame: Baseline to Day 13
The Maximum Time-matched Change From Baseline in QT Data Corrected for Heart Rate (QTc), Placebo-corrected, Based on an Individual Correction (QTcI) Method (ΔΔQTcI)
The effects of 80 mcg/hr buprenorphine (Day 17) delivered by BTDS alone, or by BTDS dosed with naltrexone, and naltrexone alone on cardiac repolarization, were assessed based on the corrected QT interval since HR inversely affects QT duration. The time-matched analysis was conducted as the primary endpoint as recommended by ICH E14, with the 2-sided 90% confidence interval for each treatment at each time point showing the placebo- and baseline-corrected (ΔΔ) analysis for QTcI. The effect of BTDS 80 on QT intervals was compared with the moxifloxacin-positive control after placebo and baseline correction.
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Moxifloxacin tablet; 1 tablet taken orally on Days 6, 13 and 17
Time frame: Baseline to Day 17
QTcF and QTcB for Historical Purposes, PR Interval, QRS Interval, and Uncorrected QT Interval
Mean change from baseline for the BTDS 10 mcg/hr dose on Day 6, presented as time-averaged mean change from baseline for BTDS only, BTDS with naltrexone, naltrexone alone, moxifloxacin, and placebo.
Time frame: Baseline to Day 6
Heart Rate (HR)
Mean change from baseline for the BTDS 10 mcg/hr dose on Day 6, presented as time-averaged mean change from baseline for BTDS only, BTDS with naltrexone, naltrexone alone, moxifloxacin, and placebo.
Time frame: Baseline to Day 6
QTcF and QTcB for Historical Purposes, PR Interval, QRS Interval, and Uncorrected QT Interval
Mean change from baseline for the BTDS 40 mcg/hr dose on Day 13, presented as time-averaged mean change from baseline for BTDS only, BTDS with naltrexone, naltrexone alone, moxifloxacin, and placebo.
Time frame: Baseline to Day 13
Heart Rate (HR)
Mean change from baseline for the BTDS 40 mcg/hr dose on Day 13, presented as time-averaged mean change from baseline for BTDS only, BTDS with naltrexone, naltrexone alone, moxifloxacin, and placebo.
Time frame: Baseline to Day 13
QTcF and QTcB for Historical Purposes, PR Interval, QRS Interval, and Uncorrected QT Interval
Mean change from baseline for the BTDS 80 mcg/hr dose on Day 17, presented as time-averaged mean change from baseline for BTDS only, BTDS with naltrexone, naltrexone alone, moxifloxacin, and placebo.
Time frame: Baseline to Day 17
Heart Rate (HR)
Mean change from baseline for the BTDS 80 mcg/hr dose on Day 17, presented as time-averaged mean change from baseline for BTDS only, BTDS with naltrexone, naltrexone alone, moxifloxacin, and placebo.
Time frame: Baseline to Day 17
ECG Morphology
Morphological analyses were performed with regard to the digital ECG waveform interpretation as defined by a central ECG laboratory's cardiologist blinded to the study treatment. Changes from baseline to each day of treatment were evaluated separately. Any T-U wave complex that suggested an abnormal form compatible with an effect on cardiac repolarization was noted. New ECG morphological onset changes were presented as the percentage of subjects meeting the "new" criterion ("new" meant not present on any baseline ECG and became present on at least 1 on-treatment ECG) for the following variables: * Second degree heart block * Third degree heart block * Complete right bundle branch block (RBBB) * Complete left bundle branch block (LBBB) * ST segment changes (elevation and depression separately) * T-wave abnormalities (negative T waves only) * Myocardial infarction (MI) pattern * Any new abnormal U waves
Time frame: Baseline to Day 6
ECG Morphology
Morphological analyses were performed with regard to the digital ECG waveform interpretation as defined by a central ECG laboratory's cardiologist blinded to the study treatment. Changes from baseline to each day of treatment were evaluated separately. Any T-U wave complex that suggested an abnormal form compatible with an effect on cardiac repolarization was noted. New ECG morphological onset changes were presented as the percentage of subjects meeting the "new" criterion ("new" meant not present on any baseline ECG and became present on at least 1 on-treatment ECG) for the following variables: * Second degree heart block * Third degree heart block * Complete right bundle branch block (RBBB) * Complete left bundle branch block (LBBB) * ST segment changes (elevation and depression separately) * T-wave abnormalities (negative T waves only) * Myocardial infarction (MI) pattern * Any new abnormal U waves
Time frame: Baseline to Day 13
ECG Morphology
Morphological analyses were performed with regard to the digital ECG waveform interpretation as defined by a central ECG laboratory's cardiologist blinded to the study treatment. Changes from baseline to each day of treatment were evaluated separately. Any T-U wave complex that suggested an abnormal form compatible with an effect on cardiac repolarization was noted. New ECG morphological onset changes were presented as the percentage of subjects meeting the "new" criterion ("new" meant not present on any baseline ECG and became present on at least 1 on-treatment ECG) for the following variables: * Second degree heart block * Third degree heart block * Complete right bundle branch block (RBBB) * Complete left bundle branch block (LBBB) * ST segment changes (elevation and depression separately) * T-wave abnormalities (negative T waves only) * Myocardial infarction (MI) pattern * Any new abnormal U waves
Time frame: Baseline to Day 17