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Protokol for udvikling og test af effektiviteten af et pædagogisk program til selvopdagelse af hudkræft: Et randomiseret kontrolleret forsøg

23. september 2026 opdateret af: National University Hospital, Singapore

Protokol for udvikling og test af effektiviteten af et pædagogisk program til selvdetektion af hudkræft: En randomiseret kontrolleret undersøgelse

Skin cancer is a significant public health concern, even in an Asian society like Singapore where it ranks among the top 10 cancers. This RCT tests the effectiveness of a skin cancer educational intervention to improve skin cancer outcomes among skin-of-color individuals, including the effects of gain versus loss framing.

Studieoversigt

Detaljeret beskrivelse

Reducing skin cancer related morbidity and mortality involves two broad domains; (1) Identification and early detection of skin cancers and (2) Awareness and behavioral change to reduce modifiable risk factors like UV exposure. Regular self-examination and public education have been shown in RCTs to improve knowledge and identification of skin cancers. However most of these existing studies and the tools they utilise rely on Western-centric photographs and messaging, such as the 'ABCDE rule' for superficial spreading and nodular melanoma. These neglect skin cancers far more common in skin of colour population such as acral lentiginous melanomas, pigmented basal cell and squamous cell carcinomas.

In addition to improving detection, effective behavioural change strategies are needed to encourage protective practices such as regular sunscreen use. Message framing has gained interest as a behavioral change technique: gain-framed messages emphasize the benefits of adopting a behavior, while loss-framed messages highlight the negative consequences of not doing so. Although message framing is widely used in health communication, evidence of its effectiveness in promoting skin cancer-related behaviors is unclear.

Effectiveness of our proposed intervention can help to increase adoption of sun protective behaviours, improve detection rates of skin cancer and allow earlier medical intervention, hence reducing morbidity and mortality of skin cancer.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

280

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

16 år og ældre (Barn, Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Individuals aged 16 and above
  • Able to read and converse in English
  • Able to provide informed consent
  • Having the ability to use and interact with a web server or application.

Exclusion Criteria:

- Individuals who have cognitive impairment or decline to participate. There will be no exclusion criteria based on a previous history of skin cancer.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Placebo komparator: Control

Participants will fill up a baseline competency examination and questionnaire, and another at the 4 month mark. Access to the intervention for control group participants will only be provided after the 4-month questionnaire is completed.

Participants in the control group will gain access to the intervention websites after the 4-month questionnaire is completed.

Eksperimentel: Intervention with gain framing

Participants will fill up a baseline competency examination and questionnaire. Afterwards, they will have access to a website with gain-framed messages emphasising benefits of adopting a behaviour. Thereafter, another competency questionnaire will be administered following completion of material.

This educational website will feature gain-framing messages, emphasizing the benefits of adopting a behavior, utilising positive language and analogies. The interventional domains are (1) Education on skin cancer risk factors and epidemiology, (2) UV Protection Advice, (3) Skin Self-Examination Techniques and (4) Differentiating benign vs malignant skin conditions.

Eksperimentel: Intervention with loss framing

Participants will fill up a baseline competency examination and questionnaire. Afterwards, they will have access to a website with loss-framed messages highlighting consequences of failing to adopt a behaviour. Thereafter, another competency questionnaire will be administered following completion of material.

This educational website will feature loss-framing messages, highlight the consequences of failing to adopt a behavior, utilising negative language and analogies. The interventional domains are (1) Education on skin cancer risk factors and epidemiology, (2) UV Protection Advice, (3) Skin Self-Examination Techniques and (4) Differentiating benign vs malignant skin conditions.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in competency scores
Tidsramme: Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

Scores measured as percentage of correct questions answered. Range from 0% to 100% with higher score indicating higher ability to differentiate benign from malignant skin lesions.

Change in scores will be calculated and compared between

  1. Both intervention arms with the control group at 4 months, and
  2. Between gain framed and loss framed intervention arms at 4 months
Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Knowledge of skin cancer, sun protection and skin self-examination
Tidsramme: Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

20 Multiple Choice Questions created based on intervention website. Score range from 0 to 20, with a higher score indicate higher knowledge in risks of skin cancer, appropriate sunscreen use and features of cancerous lesions.

Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention
Attitudes toward carrying out sun protection behaviours
Tidsramme: Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

6 questions graded on a 7-point Likert scale, with higher scores indicating better attitudes toward sun protection behaviours

Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention
Subjective norms, which refer to participants' perception of whether significant individuals in their lives would support sun protection behaviours
Tidsramme: Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

7 questions graded on a 7-point Likert scale, with higher scores indicating a greater influence of others' perception on their sun protection behaviours

Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention
Behavioural outcomes (sun protection behaviour and skin self-examination)
Tidsramme: Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

Sun Exposure and Protection Index. 9 questions graded on a 5-point Likert scale assessing sun habits and sun protection behaviour. Lower scores indicate more optimal sun protection behaviours, with an additional adapted question.

11 additional questions regarding participants' sunscreen usage (e.g. type of sunscreen, frequency of reapplication), and skin-self examination, with a lower score indicating more optimal sun protection behaviours.

Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention
Intentions of participants toward carrying out skin cancer risk prevention strategies
Tidsramme: Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

Sun Exposure and Protection Index (6 questions with an additional adapted question). Each given response score (0-4) are summed, with scores ranging from 0-24, with higher score indicating a low propensity to increase sun protection.

2 additional questions regarding participants' intentions of conducting a skin-self examination. 7 point Likert Scale (1-7), with higher score indicating higher intentions of conducting a skin-self examination.

Baseline, immediately post-intervention (for intervention arms), 4 months post-intervention

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Ledende efterforsker: Ellie Choi, MBBS, National University Hospital, Singapore

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

15. juni 2026

Primær færdiggørelse (Anslået)

1. juni 2027

Studieafslutning (Anslået)

1. december 2027

Datoer for studieregistrering

Først indsendt

19. november 2025

Først indsendt, der opfyldte QC-kriterier

19. november 2025

Først opslået (Faktiske)

25. november 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

24. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. september 2026

Sidst verificeret

1. oktober 2025

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

IPD shared includes de-identified demographics and measures.

IPD-delingstidsramme

IPD and supporting information will be available from the time of publication and for four years thereafter.

IPD-delingsadgangskriterier

Deidentified individual participant data supporting the findings of this study will be available from the corresponding author upon reasonable request. Access will be granted on a case-by-case basis following review and approval of a data access proposal and completion of a data sharing agreement.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • ICF
  • ANALYTIC_CODE

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