CClinicalTrials.gg
CompletedNCT00837967Updated Aug 29, 2012Results posted

Study to Investigate the Safety and Efficacy of High Dose of Symbicort® SMART in Japanese Patients

A Phase 3 interventional study of Symbicort Turbuhaler and Terbutaline Turbuhaler in Asthma, sponsored by AstraZeneca. Completed at 2 sites in Japan. Open to participants aged 16 Years to 65 Years. Per ClinicalTrials.gov, last updated 2012-08-29.

Sponsored by AstraZeneca · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
25
Allocation
Randomized
Ages
16 Years to 65 Years
Sex
All
01

Study summary

The primary objective of the study is to compare the tolerability of Symbicort® Turbuhaler® 160/4.5 μg 10 inhalations with terbutaline Turbuhaler® 0.4 mg 10 inhalations for 3 days on top of Symbicort® Turbuhaler® 160/4.5 μg 1 inhalation twice a day (bid) in adult asthma patients.

02

Conditions studied

  • Asthma

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Keywords

  • Asthma
  • Symbicort Turbuhaler
03

In context

Asthma

3,920 studies on the registry are indexed under Asthma; 506 are open to participants now.

This study's enrollment of 25 is below the median of 83 across 2,751 interventional studies indexed under Asthma.

Browse Asthma studies →

Lead sponsor

AstraZeneca is the lead sponsor of 3,429 studies on the registry; 270 are open to participants now.

Of its 357 completed or terminated interventional studies of FDA-regulated products, 173 (48%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
16 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Provision of informed consent prior to any study specific procedures
  • A minimum of 6 months documented history of asthma according to the JGL2006/GINA2006 definition
  • FEV1> 70% of predicted normal value pre-bronchodilator

Exclusion criteria

Exclusion Criteria:

  • Having a known or suspected allergy to study therapy (active drugs or additive)
  • Having a known clinical history of hypertension, relevant arrhythmias or other heart disease, eg, ischemic heart disease, cardiomyopathy, valvular heart disease, or heart failure
  • Having been treated with oral, parenteral or rectal glucocorticoids within 4 weeks, or with depot parenteral glucocorticoids within 3 months
  • Respiratory infection significantly affecting the asthma, as judged by the investigator within 4 weeks
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
25 participants (actual)

Study arms

  • Experimental
    First Symbicort, then Terbutaline

    Symbicort Turbuhaler 160/4.5μg for 3 days First , then Terbutaline Turbuhaler 0.4 mg for 3 days

    Drug: Symbicort Turbuhaler · Drug: Terbutaline Turbuhaler

  • Experimental
    First Turbuhaler, then Symbicort

    Terbutaline Turbuhaler 0.4 mg for 3 days First, then Symbicort Turbuhaler 160/4.5μg for 3 days,

    Drug: Symbicort Turbuhaler · Drug: Terbutaline Turbuhaler

Interventions

  • DrugSymbicort Turbuhaler

    160/4.5μg for 3 days

  • DrugTerbutaline Turbuhaler

    0.4 mg for 3 days

06

What researchers measure

Primary outcomes

  1. Adverse Events

    Total number of adverse events

    Time frame: 3 days

  2. Serum Potassium - Average Concentration From Trapezoidal Area Under the Curve (AUC)

    The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

    Time frame: up to 740 min after start dosing for each treatment day

  3. Blood Glucose - Average Concentration From Trapezoidal Area Under the Curve (AUC)

    The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

    Time frame: up to 140 min after start dosing for each treatment day

  4. Electrocardiogram (ECG)- Average Trapezoidal Area Under the Curve (AUC)

    The mean AUC of QTcF (ECG interval measured from the beginning of the Q wave to the end of the T wave, corrected for heart rate using Fridericia's formula)was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

    Time frame: up to 740 min after start dosing for each treatment day

  5. Vital Sign (Blood Pressure)- Average Trapezoidal Area Under the Curve (AUC)

    The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

    Time frame: up to 740 min after start dosing for each treatment day

  6. Vital Sign (Pulse Rate)- Average Trapezoidal Area Under the Curve (AUC)

    The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

    Time frame: up to 740 min after start dosing for each treatment day

07

Results

Posted Aug 29, 2012

Participant flow

Patients recruited from 2 hospitals in Japan between January 2009 and July 2009. 28 patients enrolled; 25 patients randomized, 3 patients were not randomized (1 due to incorrect enrollment and 2 due to adverse event)

First Intervention
Participant flow — First Intervention
MilestoneSymbicort First, Then TerbutalineTerbutaline First, Then Symbicort
Started1312
Completed1312
Not completed00
Washout Period of 7 - 14 Days
Participant flow — Washout Period of 7 - 14 Days
MilestoneSymbicort First, Then TerbutalineTerbutaline First, Then Symbicort
Started1312
Completed1112
Not completed20
Withdrew: Adverse event20
Second Intervention
Participant flow — Second Intervention
MilestoneSymbicort First, Then TerbutalineTerbutaline First, Then Symbicort
Started1112
Completed1112
Not completed00

Outcome measures

PrimaryAdverse Events

Total number of adverse events

Time frame:
3 days
Reported as:
Number · adverse events
Adverse Events
adverse eventsSymbicortTerbutaline
Adverse Events1424
PrimarySerum Potassium - Average Concentration From Trapezoidal Area Under the Curve (AUC)

The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

Time frame:
up to 740 min after start dosing for each treatment day
Reported as:
Mean · mEq/L
Serum Potassium - Average Concentration From Trapezoidal Area Under the Curve (AUC)
mEq/LSymbicortTerbutaline
Serum Potassium - Average Concentration From Trapezoidal Area Under the Curve (AUC)4.01 ± 0.253.88 ± 0.26
PrimaryBlood Glucose - Average Concentration From Trapezoidal Area Under the Curve (AUC)

The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

Time frame:
up to 140 min after start dosing for each treatment day
Reported as:
Mean · mg/dLiters
Blood Glucose - Average Concentration From Trapezoidal Area Under the Curve (AUC)
mg/dLitersSymbicortTerbutaline
Blood Glucose - Average Concentration From Trapezoidal Area Under the Curve (AUC)121.1 ± 20.3129.5 ± 22.0
PrimaryElectrocardiogram (ECG)- Average Trapezoidal Area Under the Curve (AUC)

The mean AUC of QTcF (ECG interval measured from the beginning of the Q wave to the end of the T wave, corrected for heart rate using Fridericia's formula)was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

Time frame:
up to 740 min after start dosing for each treatment day
Reported as:
Mean · ms
Electrocardiogram (ECG)- Average Trapezoidal Area Under the Curve (AUC)
msSymbicortTerbutaline
Electrocardiogram (ECG)- Average Trapezoidal Area Under the Curve (AUC)411.71 ± 15.07414.33 ± 14.04
PrimaryVital Sign (Blood Pressure)- Average Trapezoidal Area Under the Curve (AUC)

The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

Time frame:
up to 740 min after start dosing for each treatment day
Reported as:
Mean · mmHg
Vital Sign (Blood Pressure)- Average Trapezoidal Area Under the Curve (AUC)
mmHgSymbicortTerbutaline
Vital Sign (Blood Pressure)- Average Trapezoidal Area Under the Curve (AUC)115.3 ± 6.3114.9 ± 8.0
PrimaryVital Sign (Pulse Rate)- Average Trapezoidal Area Under the Curve (AUC)

The mean AUC value was calculated as AUC (calculated using the trapezoidal method) divided by the length of the sampling period.

Time frame:
up to 740 min after start dosing for each treatment day
Reported as:
Mean · beats/min
Vital Sign (Pulse Rate)- Average Trapezoidal Area Under the Curve (AUC)
beats/minSymbicortTerbutaline
Vital Sign (Pulse Rate)- Average Trapezoidal Area Under the Curve (AUC)70.0 ± 6.674.1 ± 7.5

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Symbicort—0/25 (0%)7/25 (28%)
Terbutaline—0/23 (0%)15/23 (65.2%)
Most frequent other events
Most frequent other events
EventSymbicortTerbutaline
TremorNervous system disorders3/254/23
PalpitationsCardiac disorders1/253/23
TachycardiaCardiac disorders1/253/23
Blood Pressure DecreasedInvestigations2/253/23
NasopharyngitisInfections and infestations2/252/23

Baseline characteristics

Age Continuous
Age Continuous(years)All Study Participants
Mean44.3 ± 14.8
Sex: Female, Male
Sex: Female, Male(Participants)All Study Participants
Female15
Male10
08

Study locations

2 sites
  • Research Site
    Ibaragi, Japan
  • Research Site
    Tokyo, Japan
09

References and documents

Publications

  • Saito T, Hasunuma T. Safety and tolerability of high-dose budesonide/formoterol via Turbuhaler(R) in Japanese patients with asthma: a randomized, double-blind, crossover, active comparator-controlled, phase III study. Clin Drug Investig. 2012 Jan 1;32(1):51-61. doi: 10.2165/11595440-000000000-00000. PubMed 22024920 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 29, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00837967
Lead sponsor
AstraZeneca
Responsible party
Sponsor
First posted
Feb 6, 2009
Start date
Jan 2009
Primary completion
Jul 2009
Completion
Jul 2009
Results posted
Aug 29, 2012
Last update
Aug 29, 2012

Study contacts

Tomas Andersson, MD
study director · AstraZeneca R&D Lund

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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