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Panel issues first guidelines to prevent anal cancer in people with HIV

2024-07-19
(Press-News.org) New recommendations for screening and treatment are based on the results of a major national study led at UCSF. 

Results from a national study led by UC San Francisco informed the first guidelines at the federal level in the United States to detect and treat anal cancer precursor lesions in people with HIV to reduce the risk of developing anal cancer.  
 
The guidelines were published on July 9 by a panel of experts in HIV care, utilizing findings from the Anal Cancer/HSIL Outcomes Research (ANCHOR) trial led by Joel M. Palefsky, MD, a professor of medicine in the UCSF Infectious Disease Division. The ANCHOR study was funded by the National Cancer Institute (NCI) of the National Institutes of Health NIH and conducted by the AIDS Malignancy Consortium.  
 
The ANCHOR trial, conducted at 25 clinical sites around the country and published in the New England Journal of Medicine in 2022, found that routine screening for and removal of precancerous anal lesions could significantly reduce the risk of anal cancer, in much the way that cervical cancer is prevented in women.  
 
“Anal cancer is a very bad disease, and we now have the tools to significantly reduce the risk,” said Palefsky, a globally recognized expert on anal cancer. “With this new recommendation, we hope that screening for anal cancer becomes a routine procedure in the care of people with HIV.”  
 
Risk of anal cancer is high in people with HIV 
 
While anal cancer is rare within the general population, cases have been rising, and among people living with HIV, it is the fourth most common cancer.  
 
For people with human papillomavirus (HPV), a common sexually transmitted virus, coinfection with HIV can increase the risk of developing anal cancer. “Men with HIV who have sex with men and transgender women with HIV, are the groups at the highest risk of anal cancer,” note the new guidelines.   
 
Anal cancer may have no symptoms in its early stages, and patients may mistake it for hemorrhoids. By the time it’s diagnosed, it may have spread.  
 
Under the new guidelines published, if high resolution anoscopy is available, certain adults with HIV – starting at age 35 for men, and transgender women, who have sex with men; and starting at 45 for women and men who do not have sex with men – should undergo screening for anal cancer precursor lesions with laboratory testing of an anal swab sample, and a digital anorectal examination to feel for changes that might indicate the presence of a cancer. 
 
“The screening procedure is quite simple,” Palefsky said. “If the screening test is positive, the next step of the evaluation is HRA. If an anal cancer precursor lesion is found at HRA, it is then treated to reduce the risk of progressing to cancer.” 
 
If HRA is not available, people with HIV who are of screening age should still have an annual rectal exam and be referred for standard anoscopy if the screen is positive. Those who have pain, bleeding or masses, or who show signs of anal cancer should undergo standard anoscopy. Palefsky added that symptomatic people under 35 with HIV should also undergo standard anoscopy. 
 
“I strongly encourage people with HIV to discuss anal cancer screening with their primary care providers,” he said.   
 
In 1991, Palefsky established the world’s first clinic focused on prevention of anal cancer, the UCSF Anal Neoplasia Clinic Research and Education Center.  
 
The recommendations were developed by the U.S. Department of Health and Human Services’ Panel on the Prevention and Treatment of Opportunistic Infections in Adults and Adolescents with HIV, which is composed of experts in HIV care. The panel is a working group of the NIH Office of AIDS Research Advisory Council, in collaboration with the Centers for Disease Control and Prevention, the HIV Medicine Association, and the Infectious Diseases Society of America. 

 

About UCSF Health: UCSF Health is recognized worldwide for its innovative patient care, reflecting the latest medical knowledge, advanced technologies and pioneering research. It includes the flagship UCSF Medical Center, which is a top-ranked hospital, as well as UCSF Benioff Children’s Hospitals, with campuses in San Francisco and Oakland; Langley Porter Psychiatric Hospital; UCSF Benioff Children’s Physicians; and the UCSF Faculty Practice. These hospitals serve as the academic medical center of the University of California, San Francisco, which is world-renowned for its graduate-level health sciences education and biomedical research. UCSF Health has affiliations with hospitals and health organizations throughout the Bay Area. Visit https://www.ucsfhealth.org/. Follow UCSF Health on Facebook or on Twitter

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[Press-News.org] Panel issues first guidelines to prevent anal cancer in people with HIV