Cardiac Electrophysiological Study
A Multi-centre, Double-blind, Randomised, Placebo-controlled, Singledose, Phase II Study to Assess the Effects on Atrial and Ventricular Refractoriness and Haemodynamics of an Intravenous Infusion of AZD1305 in Patients Undergoing an Invasive Electrophysiological Procedure
2 other identifiers
interventional
55
4 countries
13
Brief Summary
The purpose of the study is to measure the effects of AZD1305 on cardiac electrophysiological properties and intracardiac pressures
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Jan 2008
Shorter than P25 for phase_2
13 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2008
CompletedFirst Submitted
Initial submission to the registry
February 5, 2008
CompletedFirst Posted
Study publicly available on registry
February 15, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2008
CompletedResults Posted
Study results publicly available
September 22, 2011
CompletedSeptember 22, 2011
August 1, 2011
5 months
February 5, 2008
January 24, 2011
August 17, 2011
Conditions
Outcome Measures
Primary Outcomes (1)
LAERP (Left Atrial Effective Refractory Period (ie, the Longest S1-S2 Interval That Fails to Result in Atrial Depolarisation))
Absolute change, after - before infusion
Measurements were obtained twice, from the invasive electrophysiological measurements made before and 20 min (or more) after the start of administration of the investigational product
Secondary Outcomes (6)
RAERP (Right Atrial Effective Refractory Period)
Measurements were obtained twice, from the invasive electrophysiological measurements made before and 20 min (or more) after the start of administration of the investigational product
VERP (Ventricular Effective Refractory Period)) and Other Electrophysiological and Electrocardiographic Variables; RR, P Wave Duration, PR, QRS, QTend, QTcF, QTtop, QTend - QTtop)
Measurements were obtained twice, from the invasive electrophysiological measurements made before and 20 min (or more) after the start of administration of the investigational product
QTcF (Interval From the Beginning of the Q or R Wave to the End of the T Wave in the Surface ECG, Corrected for Changes in RR Interval Using Fridericia' Formula =QT/RR1/3 Interval in Seconds)
Measurements were obtained twice, from the invasive electrophysiological measurements made before and 20 min (or more) after the start of administration of the investigational product. ECG measurements, including QTcF, are available from several additiona
Cmax Observed for AZD1305
During and after infusion
AUC Total of AZD1305 (Umol*h/L)
Based on PK samples during and after infusion
- +1 more secondary outcomes
Interventions
Intravenous infusion
Eligibility Criteria
You may qualify if:
- Patients with atrial flutter (with a ventricular rate of \<100 beats/minute at enrolment), scheduled for curative catheter ablation
- Sinus rhythm at randomisation
You may not qualify if:
- QTc (Fridericia, QTcF ) \>450 ms measured in sinus rhythm at randomisation,
- Serum potassium below 3.8 or above 5.0 mmol/L or plasma potassium below 3.6 or above 5.0 mmol/L
- QRS duration \>120 ms at randomisation
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- AstraZenecalead
Study Sites (13)
Research Site
Aalborg, Denmark
Research Site
Aarhus, Denmark
Research Site
Copenhagen, Denmark
Research Site
Hellerup, Denmark
Research Site
Helsinki, Finland
Research Site
Kuopio, Finland
Research Site
Oulu, Finland
Research Site
Bergen, Norway
Research Site
Oslo, Norway
Research Site
Gŏteborg, Sweden
Research Site
Linkŏping, Sweden
Research Site
Ŏrebro, Sweden
Research Site
Umeå, Sweden
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Gerard Lynch
- Organization
- AstraZeneca
Study Officials
- PRINCIPAL INVESTIGATOR
Lauri Toivonen, MD
Helsinki University Central Hospital
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- LTE60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
February 5, 2008
First Posted
February 15, 2008
Study Start
January 1, 2008
Primary Completion
June 1, 2008
Study Completion
June 1, 2008
Last Updated
September 22, 2011
Results First Posted
September 22, 2011
Record last verified: 2011-08