Evidence has demonstrated that
infections from high-risk strains of HPV can lead to cervical cancer later in
life.1,2 In 2016, 1500 new cases of cervical cancer were predicted
in Canada, with 400 women expected to die from this disease.3 Early
diagnosis and treatment is key in reducing the incidence and prevalence of
cervical cancer.4 Widespread cervical cancer screening programs
have dramatically reduced cervical cancer incidence rates and deaths.
Unfortunately, about 30% of Canadian women are still not receiving regular
screening.3,5,6 Low income women, immigrant women, indigenous women
and women living in remote communities are less likely to receive screening,
putting them at a higher risk of advanced cervical cancer and poor health
Since the late 1990s, sexually transmitted infection (STIs) rates have been steadily increasing in Canada, despite the implementation of widespread and targeted public health programs.1,10 This is of great concern, especially in women, as chlamydia is the most commonly reported bacterial STI in Canada and majority of the cases are asymptomatic. Additionally, there is some evidence that recent changes to cervical screening guidelines may reduce rates of chlamydia screening, especially in younger women at high risk.2 Bacterial STIs, such as chlamydia or gonorrhea, can lead to pelvic inflammatory disease, infertility, or other complications during pregnancy if they’re left untreated.11
Lower levels of screening have been attributed to a number of barriers, such as lack of knowledge and awareness about STIs, embarrassment and inconvenience, not having a family doctor, and religious, cultural and language barriers.8,9,12-15 Innovative interventions such as self-sampling either at home or in a clinic, have demonstrated improved uptakes rates for testing and screening of HPV and STIs. 10,13,16,17 Women view self-sampling as an acceptable and practical alternative to physician collected samples,15 and studies have shown it to be comparable in sample quality to physician collected samples. 18
1. Self-collected versus clinician collected samples for sexually transmitted infection testing in women: a review of comparative clinical effectiveness cost-effectiveness, and guidelines [Internet]. Ottawa (ON): CADTH; 2016 Jun 22. (CADTH rapid response reports). Available from: https://www.cadth.ca/
2. Ursu A, Sen A, Ruffin M. Impact of cervical cancer screening guidelines on screening for chlamydia. Ann Fam Med [Internet]. 2015 Jul [cited 2017 Jan 11];13(4):361-3. Available from:http://www.ncbi.nlm.nih.
3. Canadian cancer statistics. Special topic: HPV-associated cancers [Internet].Statistics Canada; 2016 Oct. Available from:http://www.cancer.ca/~/
4. Fajardo-Bernal L, Aponte-Gonzalez J, Vigil P, Angel-Müller E, Rincon C, Gaitán HG, et al. Home-based versus clinic-based specimen collection in the management of Chlamydia trachomatis and Neisseria gonorrhoeae infections. Cochrane Database Syst Rev. 2015;9:CD011317.
5. Canadian Task Force on Preventive Health Care, Dickinson J, Tsakonas E, Conner GS, Lewin G, Shaw E, et al. Recommendations on screening for cervical cancer. CMAJ [Internet]. 2013 Jan 8 ;185(1):35-45. Available from: http://www.ncbi.nlm.nih.
6. Lofters A, Vahabi M. Self-sampling for HPV to enhance uptake of cervical cancer screening: Has the time come in Canada? CMAJ. 2016 Apr 25.
7. Tota JE, Bentley J, Blake J, Coutl‚e F, Duggan MA, Ferenczy A, et al. Introduction of molecular HPV testing as the primary technology in cervical cancer screening: acting on evidence to change the current paradigm [Internet]. Ottawa: Canadian Cancer Survivor Network; 2015 Dec 9. (Evidence review and report). Available from:http://survivornet.ca/
8. New and emerging technologies for self-sampling for cervical cancer screening (HPV) [Internet]. Birmingham (UK): University of Birmingham; 2014 Mar. Available from:http://www.hsric.nihr.ac.
9. Vahabi M, and Lofters A. Mulism immigrant women’s view on cervical cancer screening and HPV self-sampling in Ontario, Canada. Bmc Public Health. 2016;16:868
10. Lunny C, Taylor D, Hoang L, Wong T, Gilbert M, Lester R, et al. Self-collected versus clinician-collected sampling for chlamydia and gonorrhea screening: a systemic review and meta-analysis. PLoS One [Internet].2015 ;10(7):e0132776. Available from:http://www.ncbi.nlm.nih.
11. Aldeen T, Jacob, J and Powell R. Screening university students for genital chlamydial infection:another lesson to learn. Sexual Health. 2010; 7: 491-494
12. Sultana F, Mullins R, English DR, Simpson JA, Drennan KT, Heley S, et al. Women's experience with home-based self-sampling for human papillomavirus testing. BMC Cancer [Internet]. 2015 ;15:849. Available from: http://www.ncbi.nlm.nih.
13. Racey CS, Withrow DR, Gesink D. Self-collected HPV testing improves participation in cervical cancer screening: a systematic review and meta-analysis. Can J Public Health. 2013 Mar;104(2):e159-e166.
14. Szarewski A, Cadman L, Mesher D, Austin J, Ashdown-Barr L, Edwards R, et al. HPV self-sampling as an alternative strategy in non-attenders for cervical screening - a randomised controlled trial. Br J Cancer [Internet]. 2011 Mar 15 ;104(6):915-20. Available from: http://www.ncbi.nlm.nih.
15. Paudyal P, Llewellyn C, Lau J, Mahmud M, Smith H. Obtaining self-samples to diagnose curable sexually transmitted infections: a systematic review of patients' experiences. PLoS One [Internet]. 2015 ;10(4):e0124310. Available from: http://www.ncbi.nlm.nih.
16. Sarai Racey C, Withrow DR, Gesink D. Self-collected HPV testing improves participation in cervical cancer screening: A systematic review and meta-analysis. Can J Public Health [Internet]. 2013 ;104(2):e159-e166. Available from: http://journal.cpha.ca/
17. Verdoodt F, Jentschke M, Hillemanns P, Racey CS, Snijders PJ, Arbyn M. Reaching women who do not participate in the regular cervical cancer screening programme by offering self-sampling kits: a systematic review and meta-analysis of randomised trials. Eur J Cancer. 2015 Nov;51(16):2375-85.
18. Arbyn M, Verdoodt F, Snijders PJ, Verhoef VM, Suonio E, Dillner L, Minozzi S, Bellisario C, Banzi R, Zhao FH, Hillemanns P, Anttila A. Accuracy of human papillomavirus testing on self-collected versus clinician-collected samples: a meta-analysis. Lancet Oncol. 2014 Feb;15(2):172-83.
The Eve Kit Service was developed to help address the screening gap in Canada by offering an alternative, low-barrier screening method. The Eve Kit Service works in collaboration with licensed physicians and an accredited hospital lab in Toronto. Below is an overview of how the Eve Kit Service works.
• If ordering online, selects a screening kit online
• If purchased retail kit, registers kit online
• Completes risk assessment*
• Completes informed consent*
• Can review assessments
• Requisition digitally generated
• Receives digital requisition
*Orders will not be processed if the patient does not consent or meet requirements
• If ordered online, receives kit
• Collects samples according to instruction
• Returns sample to lab by mail in a pre-paid box
• Updated on status
• Receives the sample
• Process sample and upload results to portal
• Informs public health on reportable positives
• Notification of result in portal
• Informed of result and required counselling if positive
• Educational materials
• Notification of new result
• Dashboard in the portal of patient results
• Positives patients highlighted
• Provider follows up with patient by phone to discuss results
• Provider follows up with patient by phone to discuss results
The Eve Kit collection device is also marketed as the HerSwab™ collection device. The HerSwab™ device was designed specifically with usability, confidence and repeatability in mind. Key design features include an ergonomic handle, colour indicated parts, a familiar aesthetic, and “automatic” collection from close to the cervix.
HerSwab™ has been tested in over 5000 women, in a number of clinical studies around the world. For highlights, see the Clinical Evidence section.
HerSwab™ is a class 2 medical device approved by Health Canada, as is Eve Kit (MDL license 94847). Eve Medical is an accredited ISO13485 medical device manufacturer.
To see the instructions for use included with Eve Kit, click here.
The recent Cervical And Self-Sample in Screening Study (CASSIS) study, at
McGill University, compared the performance of HPV testing using cells
collected by three methods: HerSwab™, cobas PCR Female Swab (another
self-sampling device), and physician-collected samples in 1,155 women with
abnormal Pap test results. Preliminary results, presented at the EUROGIN
conference in June 2016, found very good agreement between the HerSwab™ and
physician-collected samples: the relative sensitivity for CIN 2 or greater was
0.93; and a Cohen’s kappa of 0.84 to 0.90. There was also very good agreement
between HerSwab™ and the cobas PCR Female Swab (Cohen’s kappa: 0.87 to 0.92)
for detection of high-risk HPV strains.
A second study involving the HerSwab™ — a randomized controlled trial of HPV self-sampling for cervical cancer screening — has been conducted in Slovenia. The study compared uptake rates of various self-sampling devices with invitation letters. Data presented in June 2016 at the Eurogin conference found that the overall response was 37.5% in the self-sampling arm (self-sampling or physician visit), compared to 19.9% in the recall letter arm (physician visit only). Of the devices tested, HerSwab™ had a 33.6% response rate compared to 32.4% for the Aprovix Qvintip device and 27.1% for the Delphi Screener.
A study of 189 patients was conducted with St. Joseph’s Hospital and McMaster
University, which compared samples collected with HerSwab™ and physician
collected samples, using Chlamydia as an initial validation target. Overall
percent agreement between physician-collected and self-collected samples for
detection of C. trachomatis was 94.7% (90.2-97.3), 0.64 K (0.47-0.81).
Completed surveys from participants in the McMaster study found that 93% of women found the HerSwabTM device very easy or easy to use, 98% found the instructions easy to follow, and 81% of women preferred collecting their own sample compared to the physician.
In the CASSIS study, 91% of participants reported that HerSwab™ was easy or very easy to use, 73% said HerSwab™ was more comfortable than a pelvic exam, 56% felt that HerSwab™ would collect a better sample than to Roche Swab.
Another study conducted by the University of Michigan surveyed 202 indigenous women in Santiago Atitlan, Guatemala who used HerSwab™ to test for HPV. 79% of these women found the test comfortable, 91% found the test easy to use, and 100% reported they were willing to perform the test periodically as a screening method.
To see additional relevant research related to self-sampling, click here.
We are always interested in collaborating with researchers on ways to improve screening access. If you are interested in working on a project together, contact us here.
El-Zein M, Bouten S, Louvanto K, Gilbert L, Gotlieb W, Hemmings R, et al. Validation of a new HPV self-sampling device for cervical cancer screening: The Cervical and Self-Sample in Screening (CASSIS) study. Gynecologic oncology. 2018 April 17. Available online: click here
Ivanus U, Primic Zakelj M, Jerman T, Florjancic M, Kuster M, Takac I, et al. HPV self-sampling response rate in randomised study among Slovenian non-responders to the organised cervical cancer screening program [Internet]. Abstract presented at: EUROGIN 2016. 2016 Jun 15-18; Salzburg, Austria. [cited 2016 Nov 9]. Available from: http://eurogin.com/
Arias M, Jang D, Gilchrist J, Luinstra K, Li J, Smieja M, et al. Ease, Comfort, and Performance of the HerSwab Vaginal Self-Sampling Device for the Detection of Chlamydia trachomatis and Neisseria gonorrhoeae. Sex Transm Dis. 2016 Feb;43(2):125-9.
Gottschlich A, Rivera-Andrade A, Grajeda E, Alvarez C, Mendoza Montano C, Meza R. Acceptability of Human Papillomavirus Self-Sampling for Cervical Cancer Screening in an Indigenous Community in Guatemala. J Glob Oncol, Published online onascopubs.org on January 18, 2017. Available from: http://ascopubs.org
Have a question that isn’t answered below? Comments or feedback? Email us at firstname.lastname@example.org.
The Eve Kit Service was developed as an alternative screening method for women (or trans and non-binary individuals) who are unable to access regular screening, or for those who would be more likely to screen at home. It is not intended as a replacement for regular medical care.
Despite public health programs being in place, the incidence of sexually transmitted infections is rising (PHAC). Around 30% of women are not regularly getting a Pap test, and screening for other STIs is also less than optimal. Self-sampling has been shown to increase screening rates, and to be an acceptable screening method.
Studies conducted have demonstrated that HerSwab™ (the Eve Kit collection device) is non-inferior to a physician collected sample, and is acceptable to patients. To read more about the research behind Eve Kit, click here.
Yes, Eve Kit is licensed by Health Canada as a Class 2 medical device (MDL license 94847).
Samples collected are processed at an ISO 15189 accredited lab using molecular diagnostics technology.
Positive results for Chlamydia and Gonorrhea are reported by the lab to public health authorities for surveillance and follow up. Patients must consent to their result potentially being shared with public health prior to ordering a kit.
Each patient who passes the risk assessment and consent process is assigned to one of our partner physicians, who assumes the patient’s care. A requisition form for the test is then created digitally and sent to the lab. Interested in working with us? Click here.
Each patient who passes the risk assessment and consent process is assigned to one of Eve Kit’s partner physicians, who assumes the patient’s care. In the case of positive results, the physician would follow up to provide counselling for the patient. Interested in working with us? Send us an email at email@example.com
The Eve Kit Service is only intended for screening in asymptomatic women. Prior to ordering a kit, each user must complete a risk assessment. If a user indicates that they have symptoms, the order will not be completed and a message is displayed encouraging the user to seek immediate care from a physician.
No, Eve Kit is not recommended for use in pregnant women.
The Eve Kit Service is not currently reimbursed. Users paying for the Eve Kit Service choose to do so as an out of pocket, which pays for Eve Kit and the convenience of accessing the associated service at home. Users are notified that they are able to access screening free of charge from their usual healthcare provider. Physicians using the Eve Kit platform are independent contractors compensated for providing uninsured services.
Eve Medical is a Canadian social enterprise dedicated to improving women’s health. Learn more about us here.
Ease, Comfort, and Performance of the HerSwab Vaginal Self-Sampling Device for the Detection of Chlamydia trachomatis and Neisseria gonorrhoeae.
Acceptability of Human Papillomavirus Self-Sampling for Cervical Cancer Screening in an Indigenous Community in Guatemala
Self-Collected versus Clinician Collected Samples for Sexually Transmitted Infection Testing in Women: A Review of Comparative Clinical Effectiveness Cost-Effectiveness, and Guidelines
Validation of a new HPV self-sampling device for cervical cancer screening: The Cervical and Self-Sample In Screening (CASSIS) study
Tools for Practice: Vaginal Self Swabs – Simple and Sensitive for STIs
Eve Medical is a Toronto-based social enterprise, dedicated to designing and delivering better healthcare experiences for women. It was founded by Jessica Ching and Evan Moses in 2010 with a simple idea to extend women’s health screening beyond the clinic into the privacy and convenience of women’s homes.
Motivated by the 500,000 cases of cervical cancer and 23 million cases of infertility that occur worldwide each year, they developed Eve Kit, Canada’s first at-home HPV and STI screening service. Eve Medical is an ISO13485 certified medical device manufacturer and Eve Kit is Health Canada approved.
To learn more, visit eve-medical.com.
Our team is all about collaboration. We want to work with healthcare professionals that are interested in providing healthcare in new, innovative ways that can improve patient outcomes. Does that sound like you? firstname.lastname@example.org
We are always interested in working with researchers and healthcare organizations on ways to improve screening access. If you are interested in working on a project together, we would love to hear from you! Get in touch with us at email@example.com