ClinicalTrials.gg
RecruitingNCT02956031DiaVACCSUpdated Jul 7, 2026

Screening Study for Cervical Pre-cancer and Cancer Prevention in South African Women.

An observational study in Cervical Cancer, High Grade Sil and CIN2, sponsored by University of Pretoria. Recruiting at 1 site in South Africa. Open to female participants aged 25 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-07.

Sponsored by University of Pretoria · Observational

From the registry’s dates

  • Started Dec 2016; still recruiting 9 years 11 months later.
Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
1,500
Ages
25 Years to 75 Years
Sex
Female
01

Study summary

Nearly 8 000 new cervical cancer cases are diagnosed in South Africa per year; many are still undiagnosed and about 50% of diagnosed cases succumb per year. Although the current prevalence of pre-cancer cervical disease is largely unknown, data from local studies suggest regional differences and an increase in the prevalence of cytological abnormalities when compared with historical data. Low frequency in cytology screening is the primary factor attributable to development of invasive cervical cancer and almost one-third of all cervical cancer patients had previous negative cytology. Due to the low sensitivity of cytology it can be assumed that the true prevalence of pre-cancer disease is underestimated by all available data. One round of optimal cervical cytology will detect around 50% of existing pre-cancer cervical disease as identified and proven using colposcopy and directed biopsy. It is now widely accepted that primary screening with a human papilloma virus (HPV) test can improve the sensitivity of screening and that even a single round of HPV screening can rapidly reduce the incidence of invasive cervical cancer and related mortality within a few years.

South Africa has a high prevalence of HIV infection and a delay in or failure to initiate antiretroviral therapy (ART). These facts, together with the largely unscreened status of the female population and the high incidence of cervical cancer all suggest that HPV infection and precursors to cervical cancer are both unusually common among South African women. Accurate current knowledge of the performance of newer generation HPV based screening tests in HIV-infected and general female population are essential for cost-analysis and planning for national prevention and screening programs. This study will aim to demonstrate the feasibility and efficacy of new generation HPV deoxyribonucleic acid (DNA) based screening assays in a South African setting.

The investigators hypothesize that HPV testing followed by normal and special cytology tests will be a successful screening model for a South African population.

02

Conditions studied

  • Cervical Cancer
  • High Grade Sil
  • CIN2

Keywords

  • cancer prevention
  • cervical screening
  • cervical cancer
  • cervical disease
  • cervical neoplasm
  • HPV testing
  • immunocytochemistry
  • triage techniques
03

In context

Uterine Cervical Neoplasms

2,366 studies on the registry are indexed under Uterine Cervical Neoplasms; 677 are open to participants now.

This study's planned enrollment of 1,500 is above the median of 225 across 529 observational studies indexed under Uterine Cervical Neoplasms.

Browse Uterine Cervical Neoplasms studies →

Lead sponsor

University of Pretoria is the lead sponsor of 17 studies on the registry; 5 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
25 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

This is a multicentric study carried out in South Africa. Women with unknown HIV status will be recruited from the general population, and HIV positive women from adult antiretroviral treatment (ART) clinics.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • accepted and signed
  • Health seeking behaviour or request for a cervical cancer screening test
  • Willing and able to receive test result by automated text message or clinic visit

Exclusion criteria

Exclusion Criteria:

  • Current pregnancy
  • Hysterectomy
  • Current or previous treatment for gynaecological cancer
  • Hesitant or unable to undergo screening and treatment if indicated
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

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.

05

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
1,500 participants (estimated)
Target follow-up
15 Years
Patient registry
Yes

Groups and cohorts

  • HIV pos

    those who serologically tested positive for HIV

    Other: Screening · Other: Colposcopy · Procedure: LLETZ

  • HIV neg

    those who serologically tested negative for HIV

    Other: Screening · Other: Colposcopy · Procedure: LLETZ

  • HIV unk

    those with no available serological test for HIV

    Other: Screening · Other: Colposcopy · Procedure: LLETZ

Interventions

  • OtherScreening

    Cervical specimen obtained using speculum examination and cervical collection bush.

  • OtherColposcopy

    Vaginal speculum examination followed by application of 2% acetic acid and lugol's iodine with inspection with colposcope and punch biopsies taken of abnormal areas.

  • ProcedureLLETZ

    The above (see colposcopy) is followed by local anaesthetic with two dentist's ampoules of lignocaine and large loop excision using coagulation of the abnormal area (usually 2 x 3 x 1 cm).

06

What researchers measure

Primary outcomes

  1. Number of women with histologically proven cervical intraepithelial neoplasia grade 2+ (CIN2+) detected using HPV DNA analysis with partial genotyping as primary screen test followed by cervical cytology and immunocytochemistry as triage tests

    Time frame: Detected on histology biopsy at colposcopy after initial HPV screening with simultaneous cytology and immunocytochemistry testing

Secondary outcomes

  1. Number of women with CIN2+ detected using HPV DNA analysis with partial genotyping that is associated with HPV types 16, 18, 16 and/or 18, only other high risk types

    Time frame: Detected on histology biopsy at colposcopy after initial HPV screening with simultaneous cytology and immunocytochemistry testing

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • van der Merwe FH, Dreyer G, Visser C, Dreyer GJ, Richter K, Snyman LC, Adams R, Botha MH. Extended Genotyping as Triage of HPV Positive Screened Women in Low-and-Middle Income Countries. J Med Virol. 2026 May;98(5):e70981. doi: 10.1002/jmv.70981. PubMed 42171389 ↗
  • Snyman LC, Richter KL, Lukhwareni A, Dreyer G, Botha MH, Van Der Merwe FH, Visser C, Dreyer G. Cytology compared with Hybrid Capture 2 human papilloma virus cervical cancer screening in HIV positive and HIV negative South African women. Int J Gynecol Cancer. 2023 May 1;33(5):669-675. doi: 10.1136/ijgc-2022-003897. PubMed 36650011 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Dec 2016 (actual). Primary completion is estimated for Dec 2038, 264 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 2, 2016
First posted
Nov 4, 2016
StartActual
Dec 2016
Primary completionEst.
Dec 2038
CompletionEst.
Dec 2038
Last update
Jul 7, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 7, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02956031
Lead sponsor
University of Pretoria
Collaborators
University of Stellenbosch
Responsible party
Professor Greta Dreyer (Professor, University of Pretoria) — Principal investigator
First posted
Nov 4, 2016
Start date
Dec 2016
Primary completion
Dec 2038 (estimated)
Completion
Dec 2038 (estimated)
Last update
Jul 7, 2026

Study contacts

Greta Dreyer, PhD
Contact
greta.dreyer@up.ac.za
+(27) 12 354 3900
Cathy Visser, MSc
Contact
cathy.visser@up.ac.za
+(27) 12 354 3900
Greta D Dreyer, PhD
principal investigator · University of Pretoria
View the source record on ClinicalTrials.gov ↗

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