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Correlation Between iXip and Final Pathology Specimen From Radical Prostatectomy: a Multicenter Prospective Trial

17 juli 2018 uppdaterad av: Alessandro Antonelli, Azienda Socio Sanitaria Territoriale degli Spedali Civili di Brescia

Correlation Between Immune compleX Predictive Index and Prostate Cancer Aggressiveness at Radical Prostetecomy Specimens: a Multicenter Prospective Trial

The Immune compleX Predictive Index (iXip) is a predictive tool for prostate cancer (PCa) diagnosis that integrates PSA, PSA-IgM, prostate volume and age of the patient. An algorithm processes these parameters providing the probability of prostate cancer. Several prospective studies confirmed its ability to predict prostate cancer presence at biopsy and therefore to reduce the rate of useless prostate biopsies. Moreover, preliminary results from a prospective study showed that iXip could predict cancer aggressiveness, too.

Studieöversikt

Status

Okänd

Betingelser

Detaljerad beskrivning

Since the 90s, serum PSA has become the cornerstone of diagnosis of PCa, However, due to its proven poor specificity, the actual role of PSA testing has been largely debated, especially if used during opportunistic screening programs. leading to a significant risk of over-diagnosis and over treatment.

In order to overcome drawbacks of PSA-based diagnostic pathway several PSA-derivates has been proposed. However, they were marginally used in clinical practice because not supplied by public health care systems.

The Immune compleX Predictive Index (iXip) is a predictive tool for prostate cancer (PCa) diagnosis that integrates PSA, PSA-IgM, prostate volume and age of the patient. An algorithm processes these parameters providing the probability of prostate cancer. Several prospective studies confirmed its ability to predict prostate cancer presence at biopsy and therefore to reduce the rate of useless prostate biopsies. Moreover, preliminary results from a prospective study showed that iXip could predict cancer aggressiveness, too.

All pathological specimens are analyzed by an expert uropathologist, following ISUP reccomandations.

Before radical prostectomy a blood sample from each patients is collected. Serum PSA-IgM concentration is measured using Prostate-IC kit in duplicate. The analysis with Prostate-IC kit was performed on automated ELISA analyzer.Then the iXip index is calculated by using the online calculator (http://ixip.xeptagen.com/).

Studietyp

Observationell

Inskrivning (Förväntat)

300

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 80 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Manlig

Testmetod

Icke-sannolikhetsprov

Studera befolkning

Male patients with prostate cancer scheduled for radical prostatectomy

Beskrivning

Inclusion Criteria are:

  • histologically proven prostate cancer,
  • patients scheduled for radical prostatectomy
  • paziente able to provide consent
  • age > 18 years or < 80 years

Exclusion criteria are:

  • neiadjuvant hormone therapy
  • salvage radical prostatectomy
  • concomitant solid or hematological tumors,
  • autoimmune disorders
  • or immunosuppressive therapies,
  • acute bacterial or viral infections.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
correlation between iXip and significant prostate carcer
Tidsram: 6 months after surgery
correlation between iXip and significant prostate carcer at final pathology specimens, defined as tumor volume > 0.5 cm3 and Gleason scor equal or superior to 7. iXip values are expressed as a percentage and vary from 0% to 100%. Higher iXip values (>30%) should be associated with aggressive pathological features.
6 months after surgery

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
correlation between iXip and tumor volume > 0.5 cm3
Tidsram: 6 months after surgery
clinical and pathological correlation between iXip values and tumour volume at final pathology specimens. iXip values are expressed as a percentage and vary from 0% to 100%. Higher iXip values (>30%) should be associated with aggressive pathological features ( >0.5cm3 tumor volume )
6 months after surgery
correlation between iXip and tumor volume > 2.5 cm3
Tidsram: 6 months after surgery
clinical and pathological correlation between iXip values and tumour volume at final pathology specimens. iXip values are expressed as a percentage and vary from 0% to 100%. Higher iXip values (>30%) should be associated with aggressive pathological features ( >2.5cm3 tumor volume ).
6 months after surgery
correlation between iXip and Gleason Score >6
Tidsram: 6 months after surgery
clinical and pathological correlation between iXip values and tumour volume at final pathology specimens. iXip values are expressed as a percentage and vary from 0% to 100%. Higher iXip values (>30%) should be associated with aggressive pathological features ( Gleason Score> 6)
6 months after surgery
correlation between iXip and pathological stage > pT2
Tidsram: 6 months after surgery
clinical and pathological correlation between iXip values and tumour volume at final pathology specimens. iXip values are expressed as a percentage and vary from 0% to 100%. Higher iXip values (>30%) should be associated with aggressive pathological features ( pathological staging >pT2)
6 months after surgery
correlation between iXip and positive lymph node at final pathology specimens
Tidsram: 6 months after surgery
clinical and pathological correlation between iXip values and tumour volume at final pathology specimens. iXip values are expressed as a percentage and vary from 0% to 100%. Higher iXip values (>30%) should be associated with aggressive pathological features ( positive lymph nodes >0)
6 months after surgery

Samarbetspartners och utredare

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Utredare

  • Huvudutredare: Alessandro Antonelli, Spedali Civili Hospital, Brescia (Italy)

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

9 februari 2018

Primärt slutförande (Förväntat)

1 oktober 2018

Avslutad studie (Förväntat)

1 december 2018

Studieregistreringsdatum

Först inskickad

16 januari 2018

Först inskickad som uppfyllde QC-kriterierna

22 januari 2018

Första postat (Faktisk)

29 januari 2018

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

19 juli 2018

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

17 juli 2018

Senast verifierad

1 juli 2018

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

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Nej

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