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Protokoll för utveckling och testning av effektiviteten hos ett utbildningsprogram för självdetektering av hudcancer: En randomiserad kontrollerad studie

23 september 2026 uppdaterad av: National University Hospital, Singapore

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.

Studieöversikt

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Beräknad)

280

Fas

  • Inte tillämpbar

Kontakter och platser

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

Studiekontakt

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

16 år och äldre (Barn, Vuxen, Äldre vuxen)

Tar emot friska volontärer

Ja

Kön som är behöriga för studier

Allt

Beskrivning

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

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

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Övrig
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Placebo-jämförare: 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.

Experimentell: 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.

Experimentell: 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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in competency scores
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Knowledge of skin cancer, sun protection and skin self-examination
Tidsram: 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
Tidsram: 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
Tidsram: 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)
Tidsram: 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
Tidsram: 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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Huvudutredare: Ellie Choi, MBBS, National University Hospital, Singapore

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)

15 juni 2026

Primärt slutförande (Beräknad)

1 juni 2027

Avslutad studie (Beräknad)

1 december 2027

Studieregistreringsdatum

Först inskickad

19 november 2025

Först inskickad som uppfyllde QC-kriterierna

19 november 2025

Första postat (Faktisk)

25 november 2025

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

24 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

23 september 2026

Senast verifierad

1 oktober 2025

Mer information

Termer relaterade till denna studie

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

IPD shared includes de-identified demographics and measures.

Tidsram för IPD-delning

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

Kriterier för IPD Sharing Access

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-delning som stöder informationstyp

  • STUDY_PROTOCOL
  • ICF
  • ANALYTIC_CODE

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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