Skip to content

A Study to Assess Changes in Clinical Management After DaTSCAN Imaging of Subjects With Clinically Uncertain Parkinsonism or an Illness With Similar Symptoms

A Multicentre, Randomised, Open Label, Comparative Phase 4 Trial to Assess Changes in Clinical Management After DaTSCAN Imaging of Subjects With Clinically Uncertain Parkinsonism in a General Neurologist Setting.

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00382967
Enrollment
273
Registered
2006-10-02
Start date
2006-10-31
Completion date
2011-01-31
Last updated
2012-09-03

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

Conditions

Parkinsonian Syndromes

Keywords

Parkinsonian Syndromes, Parkinsonism, DaTSCAN, SPECT, clinical management, quality of life, movement disorder, Clinically uncertain Parkinsonian Syndromes

Brief summary

Patients come to their doctor showing possible symptoms of a movement disorder. It is possible that these symptoms may get worse over time. There is more than one disease that can cause such symptoms. The most common movement disorder illnesses are Parkinson´s Disease and Essential Tremor. Sometimes it is difficult for doctors to make the right diagnosis because the symptoms caused by these illnesses are almost the same. On the other hand the correct treatment for Parkinson´s Disease is different from the correct treatment for Essential Tremor. This study aims to see whether having pictures of the brain taken with DaTSCAN can affect the way the doctor treats these patients and whether it can affect their quality of life directly.

Interventions

PROCEDUREDaTSCAN SPECT imaging

A single intravenous injection of DaTSCAN with a total activity of 111-185 MBq (volume of 2.5 or 5.0 mL). SPECT scanning to be performed 3 to 6 hours after DaTSCAN injection.

Sponsors

i3 Statprobe
CollaboratorINDUSTRY
GE Healthcare
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Subjects with clinically uncertain Parkinsonian Syndromes or monosymptomatic, atypical or incomplete presentation of tremor, rigidity, bradykinesia or postural instability. * Onset of clinical manifestations within the last 5 years

Exclusion criteria

* Differential diagnosis between Parkinsons´s Disease and Progressive Supranuclear Palsy or between Parkinson´s Disease and Multiple System Atrophy * Subjects with an established/certain movement disorder clinical diagnosis * Presence of known causes of tremor

Design outcomes

Primary

MeasureTime frameDescription
Changes That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Changes in clinical management made from Visit 1 (baseline) to Visit 3 (a 3 month period)The impact the Datscan image had on the Doctor's decisions on the clinical management of subjects. A record of the number of changes in the Doctor's clinical management. It is possible for a subject to have multiple changes in Clinical management and other subjects to have no change in their management.

Secondary

MeasureTime frameDescription
Changes That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.From the first patient Visit 1 (1 month) to Visit 4 (12 months). This goes from the baseline (visit 1) up to 1 year post contrast administration.The impact the Datscan image had on the Doctor's decisions on the clinical management of subjects. A record of the number of changes in the Doctor's clinical management. From the first patient visit (baseline) to the fourth patient visit, which was 12 months. This was a 1 year time period being assessed.It is possible for a subject to have multiple changes in Clinical management and other subjects to have no change in their management.

Countries

France, United States

Participant flow

Participants by arm

ArmCount
Datscan Product
\[Iodine-123\]Ioflupane isotonic solution. Single i.v. injection within the dose range of 111 to 185 Megabecquerel (MBq) \[3-5 millicurie (mCi)\].
121
Control Arm
No (Injection) Intervention
137
Total258

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyProtocol Violation11

Baseline characteristics

CharacteristicTotalDatscan ProductControl Arm
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
157 Participants75 Participants82 Participants
Age, Categorical
Between 18 and 65 years
101 Participants46 Participants55 Participants
Age Continuous66.2 years
STANDARD_DEVIATION 11.9
66.9 years
STANDARD_DEVIATION 12.1
65.5 years
STANDARD_DEVIATION 11.8
Region of Enrollment
Denmark
4 participants2 participants2 participants
Region of Enrollment
France
4 participants2 participants2 participants
Region of Enrollment
Germany
40 participants20 participants20 participants
Region of Enrollment
Italy
26 participants12 participants14 participants
Region of Enrollment
Norway
16 participants8 participants8 participants
Region of Enrollment
Spain
17 participants6 participants11 participants
Region of Enrollment
Switzerland
3 participants1 participants2 participants
Region of Enrollment
United Kingdom
79 participants38 participants41 participants
Region of Enrollment
United States
69 participants32 participants37 participants
Sex: Female, Male
Female
119 Participants56 Participants63 Participants
Sex: Female, Male
Male
139 Participants65 Participants74 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1220 / 137
serious
Total, serious adverse events
0 / 1220 / 137

Outcome results

Primary

Changes That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.

The impact the Datscan image had on the Doctor's decisions on the clinical management of subjects. A record of the number of changes in the Doctor's clinical management. It is possible for a subject to have multiple changes in Clinical management and other subjects to have no change in their management.

Time frame: Changes in clinical management made from Visit 1 (baseline) to Visit 3 (a 3 month period)

ArmMeasureGroupValue (NUMBER)
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Initiation of medication not planned33 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance/withdrawal of medication planned19 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Performance of diagnostic test not planned6 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance of diagnostic test planned1 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Arrangement of a referral not planned4 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Cancellation of a referral planned0 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Other Actions16 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Significant changes made58 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Significant changes made40 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Initiation of medication not planned28 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Arrangement of a referral not planned2 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance/withdrawal of medication planned11 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Other Actions6 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Performance of diagnostic test not planned6 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Cancellation of a referral planned0 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance of diagnostic test planned0 Number of changes in clinical management
Secondary

Changes That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.

The impact the Datscan image had on the Doctor's decisions on the clinical management of subjects. A record of the number of changes in the Doctor's clinical management. From the first patient visit (baseline) to the fourth patient visit, which was 12 months. This was a 1 year time period being assessed.It is possible for a subject to have multiple changes in Clinical management and other subjects to have no change in their management.

Time frame: From the first patient Visit 1 (1 month) to Visit 4 (12 months). This goes from the baseline (visit 1) up to 1 year post contrast administration.

Population: The numbers represent the number of changes in decisions that the Doctor made in the clinical management of the patient with Clinically Uncertain Parkinsonism

ArmMeasureGroupValue (NUMBER)
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Initiation of Medication not planned35 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance or withdrawal of medication planned16 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Performance of diagnostic test not planned7 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance of diagnostic test planned0 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Arrangement of referral not planned3 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Cancellation of referral planned0 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Other Actions15 Number of changes in clinical management
Datscan ProductChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Significant changes made48 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Significant changes made28 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Initiation of Medication not planned22 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Arrangement of referral not planned1 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance or withdrawal of medication planned6 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Other Actions9 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Performance of diagnostic test not planned5 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Cancellation of referral planned1 Number of changes in clinical management
Control ArmChanges That the Doctor Made in the Clinical Management of Subjects Based Upon the Impact of the Imaging Product.Avoidance of diagnostic test planned0 Number of changes in clinical management

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026