An interventional study of D-VIA in Cervical Precancer, sponsored by Prof. Patrick Petignat. Completed at 1 site in Madagascar. Open to female participants aged 30 Years to 49 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-02-26.
Sponsored by Prof. Patrick Petignat · Not applicable, Interventional, and Prevention
The purpose of this study is to determine whether smartphone photos may assist health-care worker (on-site) and to evaluate the diagnostic reliability and accuracy of cervical examination with smartphone photos of VIA (D-VIA), on-site and off-site, compared with conventional VIA, for human papillomavirus (HPV) positive women.
Background: Cervical cancer is the leading cause of cancer death in females in Madagascar. In this country, a large-scale screening of precancerous lesions with cytology is hardly possible, because of the lack of specialists and infrastructures. Visual inspection of the cervix with application of 5% acetic acid (VIA) is an inexpensive alternative but very subjective since it depends on the examiner's experience. Mobile telemedicine is a very promising tool in order to assist non-expert health-care workers in rural area for cervical cancer screening.
Objective: To assess if Smartphone may assist health-care worker (on-site) and to evaluate the diagnostic reliability and accuracy of cervical examination with smartphone photos of VIA (D-VIA) compared with conventional VIA, for women testing positive for human papillomavirus (HPV).
Material and method: On-site health care workers will be trained in VIA. Prescreened HPV-positive women will be referred to VIA evaluation, during which digital images with a smartphone (D-VIA) will be taken for later evaluation by a VIA specialist in Geneva linked by telemedicine. Women with positive VIA results will be treated with cold coagulation if eligible. Histological results will be considered as gold standard. The results will be analyzed with Cohen's kappa coefficient, Mcnemar's test and Bonferroni's adjustment for multiple comparisons to assess the performance of D-VIA.
Expected results: Based on the results of this project, the investigators will develop an educational training and quality assurance program for health providers for VIA and so contribute to a scaling-up of cervical cancer control. An appropriate triage by VIA will reduce not only an excessive referral rate but also an excessive treatment delay, giving the possibility of a "screen (HPV), see (VIA/D-VIA), and treat" program in a single or two visits.
409 studies on the registry are indexed under Uterine Cervical Dysplasia; 76 are open to participants now.
This study's enrollment of 1,041 is above the median of 167 across 285 interventional studies indexed under Uterine Cervical Dysplasia.
Browse Uterine Cervical Dysplasia studies →Prof. Patrick Petignat is the lead sponsor of 7 studies on the registry; 2 are open to participants now.
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Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HPV high risk-positive (16, 18, 45, 31, 33, 35, 39, 51, 52, 56, 58, 59, 66, 68) women had a cervical examination using acetic acid (VIA) application and visual inspection.
Device: D-VIA
D-VIA images were captured during the cervical examination with a smartphone. Biopsies and cytological samples were taken on all patients and analyzed for gold standard results. Images were shown to off site experts. D-VIA and VIA diagnoses were then compared. Women who were diagnosed on-site as pathological underwent appropriate treatment at the same consultation. Women who were diagnosed as pathological later by histopathological analyses were asked to return to the clinic for treatment.
Differences in sensitivity and specificity of VIA examination (control) and digital VIA to detect cervical cancer and pre-cancer
Sensitivity and specificity will be calculated using histological results as gold-standard. All lesion Cin2 and worse will be considered as pathological.
Time frame: up to 12 months
Overall agreement between diagnoses based on VIA examination (control) and diagnoses for the same patient based on digital VIA.
Time frame: up to 12 months
Plan to share: Yes — Data will be used for scientific publications and congress presentations.
This study is completed, as verified in Feb 2016. You cannot join it, but the record below documents what was studied.
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Prof. Patrick Petignat