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Iodixanol Versus Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic Imaging of Abdomen/Pelvis

A Phase 4 Randomized, Double-blind Study Comparing Patient Comfort and Safety Between Iodixanol 320 mg I/mL and Iopamidol 370 mg I/mL in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01376089
Enrollment
304
Registered
2011-06-20
Start date
2011-05-31
Completion date
2012-02-29
Last updated
2013-12-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patient Comfort and Safety

Keywords

Safety

Brief summary

The purpose of this study is to evaluate and compare overall patient comfort profile between the Iso-osmolar contrast media (IOCM), iodixanol 320 mg I/mL, and a Low-osmolar contrast media (LOCM), iopamidol 370 mg I/mL in patients undergoing Contrast-Enhanced Computed Tomographic (CECT) imaging of the abdomen/pelvis.

Interventions

Iodixanol 320 mg I/mL as a single iv. administration.

Comparator agent iopamidol (Isovue) 370 mg I/mL as a single iv. administration.

Sponsors

i3 Statprobe
CollaboratorINDUSTRY
GE Healthcare
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* The subject is over 18 years old. * Subjects are referred to undergo a CECT imaging of the abdomen/pelvis as part of their routine clinical care.

Exclusion criteria

* The subject has known allergies to iodine or any prior history of adverse reaction to iodinated CM. * The subject received another administration of CM within 24 hours prior to baseline or is scheduled to receive one within the 24 hour follow-up period. * The subject is pregnant. * The subject is taking metformin (e.g., Glucophage®) but is not willing or unable to discontinue at the time of the study procedure. * The subject manifests thyrotoxicosis or is on dialysis.

Design outcomes

Primary

MeasureTime frameDescription
Frequency of Subjects With Moderate/Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Within 10 minutes post contrast administrationNumber of subjects experiencing any moderate (score of 4 - 7) to severe (score 8 - 10) discomfort for cold or heat or pain between Iodixanol and Iopamidol.
Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Within 10 minutes post contrast administration.Number of subjects experiencing moderate (score of 4 -7) to severe (score of 8 - 10) discomfort for cold, heat or pain between Iodixanol and Iopamidol.

Secondary

MeasureTime frameDescription
Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Ten minutes post contrast administration.Overall Image Quality rated as 'Excellent, Adequate or Poor' by radiologists blinded to the contrast administration.

Countries

United States

Participant flow

Recruitment details

A total of 304 subjects were enrolled in this study, however, 5 subjects did not receive contrast media due to administrative and /or technical reason leaving 299 subjects included in the analysis.

Pre-assignment details

A total of 304 subjects were enrolled in this study, however, 5 subjects did not receive contrast media due to administrative and /or technical reason leaving 299 subjects included in the analysis.

Participants by arm

ArmCount
Arm 1-Iodixanol151
Arm 2-Iopamidol148
Total299

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyPatient received no contrast media34

Baseline characteristics

CharacteristicArm 1-IodixanolArm 2-IopamidolTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
60 Participants57 Participants117 Participants
Age, Categorical
Between 18 and 65 years
91 Participants91 Participants182 Participants
Age Continuous57.8 years
STANDARD_DEVIATION 15.23
58.5 years
STANDARD_DEVIATION 15.02
58.1 years
STANDARD_DEVIATION 15.1
Region of Enrollment
Germany
45 participants43 participants88 participants
Region of Enrollment
Spain
35 participants35 participants70 participants
Region of Enrollment
United Kingdom
6 participants8 participants14 participants
Region of Enrollment
United States
65 participants62 participants127 participants
Sex: Female, Male
Female
68 Participants80 Participants148 Participants
Sex: Female, Male
Male
83 Participants68 Participants151 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
121 / 151134 / 148
serious
Total, serious adverse events
0 / 1511 / 148

Outcome results

Primary

Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.

Number of subjects experiencing moderate (score of 4 -7) to severe (score of 8 - 10) discomfort for cold, heat or pain between Iodixanol and Iopamidol.

Time frame: Within 10 minutes post contrast administration.

ArmMeasureGroupValue (NUMBER)
Arm 1-Iodixanol (Visipaque)Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Discomfort of Heat45 Number of Subjects with discomfort
Arm 1-Iodixanol (Visipaque)Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Discomfort of Pain5 Number of Subjects with discomfort
Arm 1-Iodixanol (Visipaque)Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Discomfort of Cold5 Number of Subjects with discomfort
Arm 2-Iopamidol (Isovue)Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Discomfort of Cold11 Number of Subjects with discomfort
Arm 2-Iopamidol (Isovue)Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Discomfort of Heat94 Number of Subjects with discomfort
Arm 2-Iopamidol (Isovue)Frequency of Subjects With Moderate / Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Discomfort of Pain3 Number of Subjects with discomfort
Primary

Frequency of Subjects With Moderate/Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.

Number of subjects experiencing any moderate (score of 4 - 7) to severe (score 8 - 10) discomfort for cold or heat or pain between Iodixanol and Iopamidol.

Time frame: Within 10 minutes post contrast administration

ArmMeasureValue (NUMBER)
Arm 1-Iodixanol (Visipaque)Frequency of Subjects With Moderate/Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.53 Number of Subjects with discomfort
Arm 2-Iopamidol (Isovue)Frequency of Subjects With Moderate/Severe Discomfort When Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.99 Number of Subjects with discomfort
Secondary

Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.

Overall Image Quality rated as 'Excellent, Adequate or Poor' by radiologists blinded to the contrast administration.

Time frame: Ten minutes post contrast administration.

ArmMeasureGroupValue (NUMBER)
Arm 1-Iodixanol (Visipaque)Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Image Quality was Excellent144 Number of subject images
Arm 1-Iodixanol (Visipaque)Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Image Quality was Adequate7 Number of subject images
Arm 1-Iodixanol (Visipaque)Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Image Quality was Poor0 Number of subject images
Arm 2-Iopamidol (Isovue)Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Image Quality was Excellent133 Number of subject images
Arm 2-Iopamidol (Isovue)Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Image Quality was Adequate14 Number of subject images
Arm 2-Iopamidol (Isovue)Comparison of Overall Image Quality Between Iodixanol and Iopamidol in Patients Undergoing Contrast-Enhanced Computed Tomographic (CECT) Imaging of the Abdomen/Pelvis.Image Quality was Poor1 Number of subject images

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026