Clinical Study Evaluating Targeted Biopsies and Cytological Imprints in Prostate Cancer
Targeted Biopsies and the Role of Cytological Imprints for Diagnosis of Prostate Cancer
The investigators will evaluate the accuracy of performing cytological imprints of targeted biopsies when diagnosing prostate cancer.
It is useful to know whether the biopsy is cancer or not, in order to know when to stop sampling and when to continue.
The strategy is used in other types of cancer, e.g lung, breast etc
Studieöversikt
Detaljerad beskrivning
Background:
When substituting a random biopsy procedure with a few targeted biopsies, it is of outmost importance to know immediately if the biopsy is positive or not. A recent study has demonstrated a high sensitivity and specificity of imprint cytology of random biopsies.
Aim:
The correlation between cytological imprints and histology of targeted prostate biopsies
Material&Method:
All patients in this study are already participating in an ongoing randomized biopsy study (NCT01455792) comparing:
- Preoperative MRI and targeted biopsies + random biopsies .
- Random biopsies (gold standard).
Only patients with a positive MRI were included in this collateral study.
The cytological imprints (negative/positive) of each targeted biopsy is compared to the histology (negative/positive) and Gleason score.
Studietyp
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
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Oslo, Norge, 0514
- Oslo University Hospital , Aker
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
- Barn
- Vuxen
- Äldre vuxen
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- Prostate specific antigene (PSA) 4-20ng/ml, and/or abnormal digital rectal examination
- No previous prostate biopsies
- Positive MRI
- Signed letter of informed concent
Exclusion Criteria:
- Contraindications to MRI
- Previous prostate biopsies
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Diagnostisk
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
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Övrig: MRI and targeted biopsies
All patients receive the same level/number of diagnostic procedures.
They all undergo targeted biopsies which are compared to the cytological imprints.
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Each targeted biopsy is subject to cytological imprints.
It causes no extra biopsies or extra discomfort for the patients
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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The rate of positive and negative cytological imprints, e.g presence of malignant cells or not.
Tidsram: 15 months
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The cytological imprints will be compared to the histology of targeted biopsies (defined as gold standard).
Measure of agreement, sensitivity and specificity will be calculated.
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15 months
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Interobserver variability
Tidsram: 15 months
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The cytological imprints will be evaluated by three different cytologists and classified as either negative or positive.
The results will be compared to the histology which defines the gold standard.
Any difference in evaluation will be assessed.
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15 months
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Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
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The detection rate of high grade cancer
Tidsram: 15 months
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The cytology will be compared to the specific Gleason score in patients with positive histology in order to evaluate any difference in the detection rate of intermediate/high grade cancer (Gleason score 7 or higher) and low grade cancer (<Gleason score 6).
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15 months
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Samarbetspartners och utredare
Sponsor
Utredare
- Huvudutredare: Eduard Baco, MD, Oslo University Hospital
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- OsloUH_2
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