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Evaluation of An Online Intervention In Improving General Practitioners' Practice In Prostate Cancer Screening (ProCaSS)

17. April 2019 aktualisiert von: Dr Tun Firzara Abdul Malik, University of Malaya

The incidence of prostate cancer has been rising steadily both globally and in Malaysia. Besides an ageing population, another reason cited to explain the increase, is the corresponding increase in the prostate cancer screening rates, especially using non-invasive tests like the prostate specific antigen (PSA).

General practitioners, being front liners in medicine, play an important role in helping men make an informed decision on prostate cancer screening. In Malaysia, about 50% of GPs would routinely screen asymptomatic men and 95% of them would use PSA as a screening tool. Despite this, the evidence for screening is inconclusive, as evidenced from two major trials on screening [The European Randomised Study of Screening for Prostate Cancer (ERSPC) and Prostate, Lung, Colorectal and Ovarian Cancer Screening trial (PLCO)]. Furthermore, clinical practice guidelines globally provide conflicting recommendations on this subject, and none has been published in Malaysia to date.

Therefore, our study aims to determine the effectiveness of an online training module in helping GPs' better understand the controversies surrounding prostate cancer screening, and in so doing, improve their practice of screening. The investigators hypothesise that GPs who are randomised to receive their online module will be less inclined to screen unnecessarily for prostate cancer.

Studienübersicht

Status

Unbekannt

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Study design: Randomised controlled trial

Setting: This trial will involve GPs in the Klang Valley, encompassing the Petaling district and Kuala Lumpur.

The healthcare system in Malaysia is divided into public and private sectors. Patients pay a standard minimal fee for public healthcare system whereas the private sector charges patients based on the services provided. The study will be conducted in private GP clinics as PSA testing is readily available compared to the public primary care setting. In public primary care clinics, PSA screening is not offered as part of a routine screening programme.

Sample size:

With 80% power and 5% (two-sided) significance, with an estimated 40% reduction in PSA screening from baseline in the intervention group and 10% in the control group, the number of participants needed for each group is 38 (total 76). Therefore, a total of 96 GPs in the Klang Valley will be recruited for this study, assuming a non-response rate of 20 GPs.

Intervention:

The intervention consists of two phases.

Phase 1 The research team will develop 3 self-administered, online surveys, with the input of family physicians and urologists. The surveys will capture basic demographic information about the participating GPs (but not any identifiable information), and also their overall knowledge and perception towards prostate cancer screening. In addition, all 3 surveys will also contain 5 clinical vignettes that will relate to prostate cancer screening. After reading the vignettes, the GPs will be asked whether or not they would recommend screening for the particular patient in the given scenario; and should they choose to screen, which screening method they would use (PSA, DRE, or both).

GPs will then be randomised to either receive an online training module (intervention) or none (control).

Phase 2:

Upon successful receipt of the GPs' response to the first survey, a second survey will be sent to all the GPs via email. The participants will once again be invited to read and respond to another set of vignettes of similar nature to those in phase 1.

GPs who have been randomised to the intervention arm will also receive a link in the second email that will enable them to download an online training module. The participants will be asked to view the training module prior to answering the second survey.

GPs in the control group will only receive the second survey and not the training module.

A third and final email will be sent to all the GPs who have successfully answered the second survey, 3 months after the date of receipt of their second survey response. This final survey will likewise, contain five clinical vignettes of similar nature to those of the two previous surveys. The responses of GPs in the intervention group will then be compared before and immediately after the online training video and also 3-months later; as well as to the control group.

Recruitment:

The research team will recruit the GPs from an existing GP database which has been created from previous studies conducted in the Petaling District and Kuala Lumpur. A researcher and a research assistant will be responsible for identifying and recruiting eligible participants. An invitation letter, a study summary, a participant information sheet and consent form will be sent via email to each GP. Consenting participants will be remunerated for their time and effort spent in participating in the study. In the event response is poor, a research assistant may need to arrange an appointment to visit the GPs at their clinics'.

Analysis:

The McNemar test will be used to determine the phase differences in the proportion of GPs who perform screening unnecessarily and the differences between the intervention and control group. Chi square test will be used to compare the difference in proportions between the intervention and control groups. GPs' characteristics associated with unnecessary screening practice will be explored using logistic regression models using phase 1 data. Logistic regression will be used for binary outcomes and the analyses will be adjusted for baseline data. SPSS will be used to manage the data sets

Studientyp

Interventionell

Einschreibung (Voraussichtlich)

96

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • Lembah Pantai
      • Kuala Lumpur, Lembah Pantai, Malaysia, 59100
        • Department of Primary Care Medicine, University of Malaya Medical Centre

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Kind
  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Ja

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • Full time general practitioners in the Klang valley (Petaling district and Kuala Lumpur)

Exclusion Criteria:

  • GPs who do not see male patients

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Sonstiges
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Single

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Aktiver Komparator: Training module (Intervention)
Responses of GPs in the intervention group will then be compared before and immediately after the online training video and also 3-months later
Responses of GPs in the intervention group will then be compared before and immediately after the online training video and also 3-months later; as well as to the control group.
Kein Eingriff: No training module (Control)

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Evaluation of effectiveness of online training module among general practitioners in prostate cancer screening
Zeitfenster: Through study completion, an average of 6 months
Difference in the change in proportions of appropriate prostate cancer screening from baseline by GPs between intervention (online training module) and control (no online training module) groups.
Through study completion, an average of 6 months

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Post-online training module knowledge in prostate cancer screening
Zeitfenster: An average of 6 months
  1. Difference in the post-online training module knowledge and attitudes towards prostate cancer screening between the intervention and control groups.
  2. GPs' characteristics that are associated with prostate cancer screening
An average of 6 months

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Hauptermittler: Tun Firzara Abdul Malik, University of Malaya

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

25. Juli 2018

Primärer Abschluss (Tatsächlich)

15. April 2019

Studienabschluss (Voraussichtlich)

25. Juni 2019

Studienanmeldedaten

Zuerst eingereicht

1. August 2018

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

13. August 2018

Zuerst gepostet (Tatsächlich)

16. August 2018

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

18. April 2019

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

17. April 2019

Zuletzt verifiziert

1. April 2019

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • BK070-2016

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

UNENTSCHIEDEN

Beschreibung des IPD-Plans

It is not yet known if there will be a plan to make IPD available.

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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