- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT02821728
Sulphate Accumulation in Prostate (SAP)
A Pre-Biopsy Window of Opportunity Trial to Measure Sulphate Levels in Human Prostate After Broccoli Consumption
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
Epidemiological studies provide evidence for a negative correlation between prostate cancer and intake of cruciferous vegetables such as broccoli. Preliminary data from ongoing intervention trials carried out at the IFR suggest that dietary changes can directly influence the metabolic profile of prostate tissue. The most significant result observed to date is that of sulphate accumulation within the prostate. The additional sulphate is likely to drive synthesis of 3'-phosphoadenosine-5'-phosphosulfate, a universal sulphate donor, a process which would consume energy from ATP. A significant rise in levels of both ADP and phosphate has also been observed in prostate tissue from these studies, supporting the potential depletion of cellular ATP. Interestingly, the data indicate that the extent of ADP accumulation is negatively correlated with prostate cancer progression.
The investigators now propose to undertake a two arm parallel un-blinded study to test the hypothesis that a short-term intervention with broccoli soups will lead to the accumulation of sulphate and ADP in prostate tissue. A potential increase in glutathione metabolites indicating a change in redox status, and therefore functional status, of specific genes involved in tumour suppression (PTEN) will also be investigated.
Furthermore, the investigators aim to determine whether the accumulation of sulphate and ADP is specific to the prostate gland through the metabolic analyses of both prostate and non-prostate tissues.
Studientyp
Einschreibung (Tatsächlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
-
-
Norfolk
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Norwich, Norfolk, Vereinigtes Königreich, NR4 7UA
- Institute of Food Research
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Males
- Scheduled for TPB as part of routine investigation or staging for prostate cancer
- Aged 18-80 years
- BMI between 19.5 and 35 kg/m2
- Smokers and non-smokers
Exclusion Criteria:
- Those regularly taking 5α-reductase inhibitors or testosterone replacement medicines
- Those on warfarin treatment
- Those diagnosed with diabetes
- Those diagnosed with or suspected to be high-risk for human immunodeficiency virus (HIV) and/or hepatitis
- Those allergic to any of the ingredients of the broccoli soups
- Those taking dietary supplements or herbal remedies which may affect the study outcome. Please note that some supplements may not affect the study and this will be assessed on an individual basis
- Those that are unable to understand English or give informed consent
- Parallel participation in another research project that involves dietary intervention
- Any person related to or living with any member of the study team
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Experimental: Normal diet
No dietary intervention
|
Participants in this group will continue with their normal diet up until the day of their scheduled template prostate biopsy.
|
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Experimental: Dietary intervention
3 portions of broccoli soup per week
|
Participants in this group will consume three portions of broccoli and stilton soup per week for a minimum of four weeks before their scheduled template prostate biopsy.
The soup will be made with a specially cultivated broccoli known as Beneforte, which contains an enhanced dose of a substance called glucoraphanin.
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Sulphate level
Zeitfenster: Biopsy on a single occasion at ≥ 4 weeks
|
Sulphate levels will be measured in biopsy tissue samples from both prostate and adipose (fat) tissues.
|
Biopsy on a single occasion at ≥ 4 weeks
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
ADP
Zeitfenster: Biopsy on a single occasion at ≥ 4 weeks
|
Adenosine diphosphate (ADP) levels will be measured in biopsy tissue samples from both prostate and adipose (fat) tissues.
|
Biopsy on a single occasion at ≥ 4 weeks
|
|
Redox status of phosphatase proteins
Zeitfenster: Biopsy on a single occasion at ≥ 4 weeks
|
The redox status of phosphatase proteins, including the tumour suppressor PTEN will be assessed in biopsy tissue samples from the prostate gland.
|
Biopsy on a single occasion at ≥ 4 weeks
|
Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Richard Mithen, PhD, Quadram Institute Bioscience
Publikationen und hilfreiche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- IFR01/2016
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .
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