By emphasizing HPV vaccinations while having clinical laboratories continue to perform Pap smears, Australia’s rate of cervical cancer has dropped notably
There is currently a global push to completely eradicate cervical cancer and Australia is leading the way with increased funding. It is also focusing on hard-to-reach and underserved populations. Australia is hoping to be first in the world to accomplish this feat by 2035.
For a number of decades, the Pap smear has been the primary screening tool for cervical cancer, as most pathologists and clinical laboratory managers know. However, today it plays a lesser role due to the effectiveness of HPV (human papillomavirus) diagnostic testing, which was put into cervical cancer screening guidelines in 2004.
Then came the first HPV vaccine in 2006. Australia was one of the first nations to implement HPV vaccination programs. By 2010, Australia was working to vaccinate every child. Now, 14 years later, the pool of adults vaccinated against HPV in that nation is causing the rates of cervical cancer to fall.
That means much less cervical cancer test volume for cytotechnologists and cytopathologists, freeing them up to devote their skills to other diagnostic tests.
As the country continues to funnel resources into hitting a zero cancer status, the additional drive will “connect Australia’s world-leading cervical cancer expertise with governments across the region to get HPV vaccine programs up and running, expand screening and treatment, and build health workforce capacity,” said Australia’s Minister for Foreign Affairs office in a press release.
“Australia has always punched above its weight when it comes to cervical cancer, and now Australia is on track to be the first country in the world to eliminate this deadly disease,” said Hon Ged Kearney, MP, RN (above), Assistant Minister for Health and Aged Care and a member of the government’s House of Representatives, in a press release. “By supporting the Pacific and Southeast Asia region [to] eliminate cervical cancer, we are another step closer to ridding the world of this disease.” Clinical laboratories and cytopathologists may soon see less reliance on Pap smears for screening and a shift toward HPV vaccinations to lower the rate of cervical cancer in the US as well. (Photo copyright: Australian Labor Party.)
90% of eligible people will be vaccinated against HPV (including girls and boys).
70% of eligible people will be screened every five years.
95% of eligible people will receive the best possible treatment for precancer and cancer.
In addition to $48.2 million in funding over four years, the program provides:
On the spot testing of samples in First Nations [aka, First Peoples] communities, allowing immediate follow up.
Support for nurses, First Nations health practitioners, and midwives to request pathology for cervical screening.
Increasing support for GPs to undertake colposcopies.
Helping the Underserved
Reaching a wider audience is a large part of Australia’s focus.
“One of my priorities is to address inequities in our health system. I want to make sure that everyone can get access to screening—and all healthcare—no matter where [they] live,” Kearney added. Among the populations sought are First Nations, LGBTIQA+, disabled individuals, and those living away from large cities.
“$8.3 million has been allocated to implement innovate screening models to support such communities,” the Minister for Foreign Affairs office noted in the press release.
Meeting people where they are, and reaching underserved populations, can make a huge difference, especially considering how cervical cancer affects these people. “First Nations women are almost twice as likely to be diagnosed with cervical cancer and face significant barriers to participating in cervical screening compared to non-indigenous women,” the press release notes.
“These tests allow privacy and help to break down barriers for thousands of people who have never screened—including women who have experienced sexual violence, LGBTIQA+ people, and culturally and linguistically diverse and First Nations communities,” the Minister for Foreign Affairs office stated.
There is hope that the push will cause a great shift to other underserved communities as well.
“A quarter of global cervical cancer cases occur in our region, the Indo-Pacific. Tragically, in the Pacific, women are dying at up to 13 times the rate of women in Australia,” said Penny Wong, Australian Minister for Foreign Affairs, in the press release.
How the US Fares in Cervical Cancer Vaccinations
Australia’s vaccination rates far exceed those in the United States. The US government currently recommends HPV vaccination between the ages of 11-12 years old, though it could be administered starting at age nine.
“HPV vaccination is recommended for all persons through age 26 years who were not adequately vaccinated earlier,” the NIH’s National Cancer Institute (NCI) reports.
For years the standard focus for cervical cancer screening has been on the Pap smear. Data show the US lags behind many countries on the rate of HPV vaccination. NCI data show that, as of 2021, in the US just 58.5% of 13-15 year-olds “had received two or three doses of HPV vaccine as recommended,” NCI reported.
With the US’s standard of care still focused on the Pap smear, patients are beginning their cervical cancer prevention journey at a later age. This is because the preliminary age to get a Pap smear in the US is 21 years old, with follow-up exams every three years, the NCI reported.
Even those in this country who are sexually active are not recommended to get screening earlier than 21.
The NCI recommends HPV testing every five years starting at age 30 until 65, with Pap tests every three years.
Clinical laboratories may soon find that, while the US has been slower to get on board with HPV vaccinations, trends in other nations indicate that this may soon change. The reliance that was once placed on the Pap smears prior to 2000 will likely give way to HPV vaccinations at ages and vaccination rates that mirror programs in countries like Australia—where marked reductions in the rate of cervical cancer demonstrate the effectiveness of a successful HPV vaccination program.
Two US clinical laboratories providing testing for the problem-laden program have been targets of lawsuits from women who allege their smear test results were misread
In Ireland, the nation’s health service continues to deal with the consequences from problems with its “CervicalCheck” service that is designed to provide timely screening for the early detection of cervical cancer. It became a national scandal when the news media learned that a number of women had received diagnoses of terminal cervical cancer due to failings in the screening program.
Throughout 2021, news reports have called attention to the efforts of the publicly-funded Health Service Executive (HSE) to regain the trust of women in that country. Earlier this year, TheJournal.ie wrote “the CervicalCheck controversy has been a complex and emotional series of tragedies and mistakes that damaged what is an important, free public health measure for women that could, along with the HPV vaccine, eradicate cervical cancer.”
This ongoing controversy provides cytopathologists and medical laboratory leaders in the US with yet another example of how easily trust in clinical laboratories can be lost when patients lose confidence in the accuracy of test results.
Missed Cancer Results in Nearly $3 Million Settlement
First launched in 2008, Ireland’s CervicalCheck program aimed to screen all Irish women between the ages 25 to 60 for cervical cancer. However, due to a claimed lack of in-house gynecological cytology testing capacity, Ireland’s HSE outsourced the nation’s entire caseload to two lab companies: New Jersey-based Quest Diagnostics and Sonic Healthcare’s Texas-based Clinical Pathology Laboratories (CPL), which received the majority of Irish Pap smear screenings for review.
A decade later, the public became aware of serious misdiagnoses involving the CervicalCheck program. In “Pap Test Errors in Ireland Attributed to Quest, CPL,” Dark Daily’s sister publication, The Dark Report (TDR), noted that 209 women in Ireland had been misdiagnosed in the nation’s cervical cancer screening program.
Concerns about the CervicalCheck program came to light in April 2018 when Vicky Phelan settled a €2.5 (US$2.9) million lawsuit with Ireland’s HSE and with US-based CPL. Phelan had been told that her 2011 Pap smear test result indicated no abnormalities. But a second test three years later revealed she had cervical cancer.
And though CervicalCheck discovered the 2011 false negative result during an internal review, neither the service nor her physician informed Phelan about the error until 2017.
During the Irish High Court proceedings, RTE, Ireland’s national public service media, reported that Phelan’s lawyers argued their client would have had a 90% chance of survival if she had received treatment in 2011.
HSE and CPL settled the lawsuit without admission of liability.
Additional Screenings Identify Hundreds of ‘Suboptimal Colposcopy’ Test Results
Following the Phelan settlement, Ireland’s CervicalCheck released a statement announcing its review of screening tests for 1,482 women diagnosed with cervical cancer between 2008 and 2018. That review identified 208 women whose “screening test could have provided a different result or a warning of increased risk or evidence of developing cancer.”
Of those 208 women, 162 had not been alerted about earlier audits revealing errors affecting their results.
Since then, 308 of the 1,034 women who participated in the program have been identified by a 2019 government-mandated review conducted by the Royal College of Obstetricians and Gynaecologists (RCOG) as having “a different cytology result from the original CervicalCheck result,” an Irish government press release noted.
The RCOG made recommendations for improvements but concluded “the small minority of cases in which suboptimal colposcopy contributed to a missed opportunity to prevent or diagnose a cancer at an earlier stage is probably inevitable when cases that end in cancer are reviewed, but this should not be taken to conclude that colposcopic practice in the CervicalCheck program is substandard.”
Women’s Trust in Ireland’s Cancer-Screening Program Is Broken
The Irish government established the CervicalCheck Tribunal in 2019 to provide the women with an alternate system for adjudicating claims.
“Though a 2019 review of Ireland’s cervical screening program found that it was in line with international standards, questions remain about how the service communicates with women who use it, the State’s method of procuring laboratories, and how to regain trust after waves of scandals,” TheJournal.ie wrote.
According to TheJournal.ie, the “issue at the heart of the CervicalCheck controversy” is HSE’s advice to doctors to not routinely provide smear test audit results to affected patients, but instead to “use their judgement in selected cases where it is clear that discussion of the outcomes of the review could do more harm than good.”
In “Cervical Cancer Controversy: ‘Why Are They Fighting These Women So Badly?’,” The Irish Times pointed out that justice has been elusive for the women whose lives have been lost or damaged by the CervicalCheck debacle. Women who die before their cases are concluded, the paper reported, lose any entitlement to general damages (approximately $587,000), though their families can seek damages for loss of a parent or spouse.
“Why are they fighting these women so badly and making them spend the last few months of their lives fighting for justice for themselves and their children?” asked Lorraine Walsh (on left, with Vicky Phelan on right), a CervicalCheck survivor whose successful, but invasive, treatments for cervical cancer have left her unable to have children. “We have seen how [the late] Ruth [Morrissey] and Vicky [Phelan] and [the late Emma Mhic Mhathúna], and lots of others, have really been put through the mill in the High Court, and we are all wondering if we have to go through that torture just to get justice out of this,” Walsh told The Irish Times. (Photo copyright: The Irish Times.)
Are Women in the US in Danger?
Cian O’Carroll, a solicitor specializing in medical negligence and personal injury law who represents more than 60 CervicalCheck plaintiffs, maintains that women in the US should be concerned about the quality of their laboratory test results as well.
“In quite a number of cases we’re looking at, there are multiple errors,” he told CBS News, adding, “Not only did they get the tests wrong, but they got them very, very wrong.”
The CervicalCheck controversy highlights how quickly a health system and clinical laboratories can lose the trust of the patients they serve. Both Quest Diagnostics and Sonic’s Clinical Pathology Laboratories found themselves in an unwelcome news spotlight in Ireland, given their participation in a cervical cancer screening system that failed in multiple ways the women it was designed to serve.
These events are a reminder to other medical laboratories and pathology groups that accuracy of results is paramount to keeping the trust of patients and healthcare consumers. When a patient’s trust is lost, it is difficult if not nearly impossible to regain.
Some experts question the usefulness of Pap testing going forward. But how would cutting back on Pap testing affect clinical laboratory revenue and is it safe for cancer patients?
Recently, a major medical society issued its findings that cervical cancer in the United States has been on a sustained decline for more than a decade and a half. This confirms what cytopathologists and cytotechnologists have watched as the development of new clinical laboratory tests, and the introduction of a vaccine for HPV (human papillomavirus) about 15 years ago, contributed to a reduction in the number of cervical cancer deaths annually here in the United States and in several other nations.
As incidences of cervical cancer declined, so have orders for Pap tests. Thus, clinical laboratory revenues in this area also have declined. This is a change from the 1990s and early 2000s, when Pap tests were the primary screening tool for cervical cancer. About 55 million Pap tests were performed annually during those years and many labs maintained sizeable numbers of cytotechs to perform these tests.
HPV Testing Drove Decreases in Cervical Cancer, Decline in Pap Testing
For at least the past decade, there are pathologists, cytotechnologists, and medical laboratory scientists who graduated from their training programs and began working in labs unaware that, since the 1990s, conventional Pap testing as a major source of test referrals and revenue for clinical laboratories and pathology groups has been on the decline.
What is the reason for the decline? Advances in several areas of medicine, implemented over the past 25 years, have greatly altered how we screen for cervical cancer today. And, in a stepwise fashion, the HPV test and HPV vaccine steadily reduced the role of Pap tests as a primary screening tool.
HPV, a common sexually-transmitted virus, is linked to not only cervical cancer, but also cancers of the vulva, vagina, penis, and anus, according to the Centers for Disease Control and Prevention (CDC) data, which recorded 43 million HPV infections in the US in 2018.
“It is likely that the significant decrease in cervical cancer incidence (in the US) results from clear guidelines for cervical cancer screening and may also reflect promotion and acceptance of [HPV] vaccination, particularly in younger women,” said the ASCO study’s lead author Cheng-I Liao, MD (above), in a news release. Liao is affiliated with Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan. (Photo copyright: Healio.)
Cervical Cancer Down, But Other HPV Cancers Up
Though cervical cancer incidence is down, other HPV-related cancers may need additional screening standards to head off rising cancer cases, the ASCO study suggests.
To conduct their study, the ASCO researchers analyzed data for 657,317 people in the US Cancer Statistics (USCS) program from 2001 to 2017. The researchers reported their findings at the 2021 ASCO Annual Meeting held online in June. They include:
Cervical cancer incidence rate decreased each year by 1.03% annually over 16 years.
In the 20 to 24 age group, a “disproportionately higher decrease” of 4.6% per year in cervical cancer incidence rate suggested “potential effect of vaccinations.”
Without screenings, HPV-related cancers incidence increased in women over 16 years.
Oropharyngeal, anal, rectal, and vulvar cancer increased 1.3% in women per year.
In men, oropharyngeal cancer incidence represented 81% of all HPV-related cancers—five times more than cases for women over 16 years.
HPV-related cancers in men increased 2.36% per year over 16 years, and oropharyngeal cancer had the biggest increase.
“Without standardized screening, HPV-related cancers—such as oropharyngeal cancers and anal rectal cancers—are increasing. To reduce these trends and achieve success comparable to what we’re seeing with cervical cancer we must develop effective screening strategies and determine vaccine efficacy in these patient populations,” Liao said in the news release.
Should PAP Tests Be Dropped as a Primary Screen for Cervical Cancer?
Today’s American Cancer Society (ACS) guidelines for cervical cancer screening denote the primary (FDA-designated) HPV test as the “preferred test” for people 25 to 65 years of age. A Pap test (or Pap smear) can be done at the same time, or in instances when a primary HPV test is not available, the ACS said.
HPV screening aims to detect high risk strains of HPV by looking for DNA in cervical cells and the Pap test involves collecting cells from the cervix for review in the medical laboratory for cancer and pre-cancer, the ACS added.
However, pathologists and cytotechnologists who have examined Pap smear slides for many years know that indications of cervical cancer are not always detected by HPV screening. A Pap test often picks up indications of cervical cancer that might not have been detected by the HPV test.
One reason is HPV tests only monitor about 20 of the genetic mutations known to cause cervical cancer. There are about 80 mutations that can cause cervical cancer, but most are so rare, it does not pay to include them in the HPV test panel.
“The Pap is not something that we should look at as replaceable. In some circumstances, we can get a Pap smear that has some significant cellular changes on it,” Jessica Shepherd, MD, an obstetrician and gynecologist at Baylor University Medical Center in Dallas, told USA Today.
Medicine Advancing, Pap Referrals Not So Much
In the 1990s, Pap tests were the front line for cervical cancer screening and a source of about 55 million referrals to clinical laboratories each year, recalls Robert Michel, Editor-in-Chief of Dark Daily and its sister publication The Dark Report.
“Interestingly, in the past decade, many cytotechnologists and laboratory scientists who started work in labs at the time of the new HPV screening guidelines and vaccination were unaware of the Pap test’s impact on revenue for clinical labs and pathology groups,” he said.
Medical advancements over the past 25 years have altered how providers screen women for cervical cancer and help them prevent it. And as HPV screening and HPV vaccination gained prominence, the standard Pap test became a kind of “co-pilot” to HPV testing. Unfortunately, this meant less oncology referrals to medical labs.
In a trial, the lens-free microscope invention from the UCLA California Nano Systems Institute enabled a board-certified pathologist to detect cancers and other cellular abnormalities at 99% accuracy
One of our favorite innovators is at it again, this time with a device that could eventually allow pathologists to use a device coupled with a smartphone to view cancer and other abnormalities at the cellular level.
At UCLA, Professor Aydogan Ozcan, Ph.D. is already well known for having invented attachments that use a smartphone’s camera to create a tiny, lens-free microscope. Now Ozcan, who is the Chancellor’s Professor of Electrical Engineering and Bioengineering at the UCLA Henry Samueli School of Engineering and Applied Science, has created an inexpensive smartphone device that produces holographic images of tissue samples that allow pathologists to view cancer and other abnormalities at the cellular level, according to a December 17, 2014, Science Translational Medicine (STM) article. (more…)
Findings may help physicians tailor cervical cancer therapies to specific gene mutations and improve the accuracy of diagnostic screening tests for this disease
New scientific knowledge about the role of human papillomavirus (HPV) in the growth of cervical cancer is creating excitement within the medical community. Among other things, these findings could encourage more widespread vaccination against HPV. That in turn would lead to reduced Pap smear testing by pathology laboratories over time.
For these reasons, cytopathologists and cytotechnologists will be particularly interested in the research findings that were published as a first-ever, international genomic study of cervical cancer, which was published online December 25, 2013, at Nature.com. Researchers discovered that the location where HPV integrates itself into the human genome, is where it causes amplified gene expression that promotes and elevates mutated gene activity that may cause cervical cancer to develop. (more…)
