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HPV-related cancers after solid organ transplantation in the United States.

ABSTRACT: Transplant recipients have elevated cancer risk including risk of human papillomavirus (HPV)-associated cancers of the cervix, anus, penis, vagina, vulva and oropharynx. We examined the incidence of HPV-related cancers in 187 649 US recipients in the Transplant Cancer Match Study. Standardized incidence ratios (SIRs) compared incidence rates to the general population, and incidence rate ratios (IRRs) compared rates across transplant subgroups. We observed elevated incidence of HPV-related cancers (SIRs: in situ 3.3-20.3, invasive 2.2-7.3), except for invasive cervical cancer (SIR 1.0). Incidence increased with time since transplant for vulvar, anal and penile cancers (IRRs 2.1-4.6 for 5+ vs. <2 years). Immunophenotype, characterized by decreased incidence with HLA DRB1:13 and increased incidence with B:44, contributed to susceptibility at several sites. Use of specific immunosuppressive medications was variably associated with incidence; for example, tacrolimus, was associated with reduced incidence for some anogenital cancers (IRRs 0.4-0.7) but increased incidence of oropharyngeal cancer (IRR 2.1). Thus, specific features associated with recipient characteristics, transplanted organs and medications are associated with incidence of HPV-related cancers after transplant. The absence of increased incidence of invasive cervical cancer highlights the success of cervical screening in this population and suggests a need for screening for other HPV-related cancers.

SUBMITTER: Madeleine MM

PROVIDER: S-EPMC4049182 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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HPV-related cancers after solid organ transplantation in the United States.

Madeleine M M MM Finch J L JL Lynch C F CF Goodman M T MT Engels E A EA

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons 20131001 12

Transplant recipients have elevated cancer risk including risk of human papillomavirus (HPV)-associated cancers of the cervix, anus, penis, vagina, vulva and oropharynx. We examined the incidence of HPV-related cancers in 187 649 US recipients in the Transplant Cancer Match Study. Standardized incidence ratios (SIRs) compared incidence rates to the general population, and incidence rate ratios (IRRs) compared rates across transplant subgroups. We observed elevated incidence of HPV-related cancer ...[more]

PMID: 24119294

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Project description:BACKGROUND:Transplant recipients have an elevated risk of cancer because of immunosuppressive medications used to prevent organ rejection, but to the authors' knowledge no study to date has comprehensively examined associations between transplantation status and mortality after a cancer diagnosis. METHODS:The authors assessed cases in the US general population (N=7,147,476) for 16 different cancer types as ascertained from 11 cancer registries. The presence of a solid organ transplant prior to diagnosis (N=11,416 cancer cases) was identified through linkage with the national transplantation registry (1987-2014). Cox models were used to examine the association between transplantation status and cancer-specific mortality, adjusting for demographic characteristics and cancer stage. RESULTS:For the majority of cancers, cancer-specific mortality was higher in transplant recipients compared with other patients with cancer. The increase was particularly pronounced for melanoma (adjusted hazard ratio [aHR], 2.59; 95% confidence interval [95% CI], 2.18-3.00) and cancers of the breast (aHR, 1.88; 95% CI, 1.61-2.19), bladder (aHR, 1.85; 95% CI, 1.58-2.17), and colorectum (aHR, 1.77; 95% CI, 1.60-1.96), but it also was increased for cancers of the oral cavity/pharynx, stomach, pancreas, kidney, and lung as well as diffuse large B-cell lymphoma (aHR range, 1.21-1.47). Associations remained significant after adjustment for first-course cancer treatment and generally were stronger among patients with local-stage cancers for whom potentially curative treatment was provided, including patients with melanoma (aHR, 3.82; 95% CI, 2.94-4.97) and cancers of the colorectum (aHR, 2.77; 95% CI, 2.07-3.70), breast (aHR, 2.08; 95% CI, 1.50-2.88), and prostate (aHR, 1.60; 95% CI, 1.12-2.29), despite the lack of an association for prostate cancer overall. CONCLUSIONS:For multiple cancer types, transplant recipients with cancer appear to have an elevated risk of dying of their cancer, even after adjustment for stage and treatment, which may be due to impaired immunity.

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HPV-related cancers after solid organ transplantation in the United States.

Publications

HPV-related cancers after solid organ transplantation in the United States.

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