View clinical trials related to HPV.
Filter by:The purpose of the study is to understand if children with liver and kidney transplants develop the antibodies from the Gardasil vaccine. The Gardasil vaccine protects against Human Papilloma Virus (HPV) types 16 and 18, which cause most types of cancers of the cervix, vagina and vulva. It also protects against Human Papilloma Virus types 6 and 11, which cause genital warts in some people. Gardasil has been approved by the Food and Drug Administration and is recommended for girls and women from ages 9-26 for the prevention of some types of cancer of the cervix, vagina and vulva as well as preventing some types of genital warts. In males that are 9-26 years old, the FDA has approved its use for prevention of some types of genital warts. The Gardasil vaccine is made from a virus like particle and does not contain any live virus. Children with an allergy to yeast should not receive the vaccine since some components of the vaccine are made from yeast. People who have undergone organ transplant are at increased risk of of developing genital warts and cancers related to HPV when compared to the general population. The American Society of Transplantation and the American Society of Transplant Surgeons recommend the vaccine for people with transplants. Studies of other vaccines like Hepatitis B have shown children after transplant have less of a response to this vaccine and are not immune to the Hepatitis B virus. We are interested in seeing if your child will form antibodies (immune response) to the Gardasil vaccine. Your child is being asked to be in the study because he or she is between the ages of 9-17 and has undergone a liver or kidney transplant more than 6 months ago and does not have any signs of organ rejection.
Background: - Infections caused by viruses are common causes of illnesses: the common cold, many ear infections, sore throats, chicken pox, and the flu are caused by different viruses. Usually, these illnesses last only few days or, at most, a few weeks. Some virus infections like influenza are cleared from the body, and others such as the chicken pox virus remain in the body in an inactive state. However, some people may become quite ill when they are infected with a particular virus, possibly because part of their immune system does not respond properly to fight the virus. - Researchers have discovered some reasons why a person may not be able to clear an infection caused by a virus. Some persons have changes in the genes that involve the immune system that result in the inability to properly control infection with a particular virus. Identifying changes in genes that involve the immune system should help scientists better understand how the immune system works to protect people from infection and may help develop new therapies. Objectives: - To study possible immune defects that may be linked to a particular severe viral infection. - To determine if identified immune defects are genetic in origin. Eligibility: - Individuals of any age who have or have had a diagnosis of a virus infection that physicians consider to be unusually severe, prolonged, or difficult to treat. - Relatives of the participants with a severe viral infection may also participate in the study. We will use their blood and/or skin specimens to try to determine if identified immune defects are hereditary. Design: - Prior to the study, the participant's doctor will give researchers the details of the infection, along with medical records for review. Eligible participants will be invited to the NIH Clinical Center for a full evaluation as an outpatient or inpatient. - At the Clinical Center, participants will be treated with the best available therapy for the particular viral infection, and researchers will monitor how the infection responds to the treatment. - Researchers will take intermittent blood samples and conduct other tests (such as skin biopsies) to evaluate the immune system. - During and after the illness, researchers will conduct follow-up visits to determine the course of infection and response to therapy.
The occurance and clinical course of human papillomavirus (HPV)-induced lesions is largely determined by the nature of the cellular immune defense generated. Even tough both genital warts and vulvar intraepithelial neoplasia (VIN) are HPV-associated genital lesions they differ in their risk of malignant progression. Imiquimod (IMQ) is a topically applied Toll-like receptor (TLR) 7 agonist that has been approved for the treatment of superficial (pre-) carcinomas of the skin (basal cell carcinomas, actinic keratosis) and HPV-associated lesions (genital warts). It acts by activation of the immune system exerting anti-tumor and anti-viral properties. The aim of the study is to evaluate the mechanisms of IMQ treatment and to analyze the differences in HPV-affected and non affected tissue at cellular and molecular level as determined by immunofluorescence stainings and real time PCR, respectively.
Worldwide cervical cancer remains a major cause mortality among women. It is estimated that each year over 490,000 women are diagnosed with cervical cancer and more than 270,000 die from the disease. While the implementation of widespread screening programs has reduced the burden of cervical cancer, a large percentage of the population still remains unscreened or is underscreened. It is now recognized that human papillomavirus (HPV) is a necessary precursor for the development of cervical cancer. The first vaccine to prevent HPV was recently approved by the Food and Drug Administration and is now available at doctors offices. Despite the availability of a safe and effective means for the prevention of cervical cancer, widespread implementation of vaccination has been extremely difficult. Several potential issues have limited the development of widespread HPV vaccination programs, including cultural and religious beliefs, and limitations in the practicality of administering the vaccine. The overall goals of our work are to improve access to preventive strategies for cervical cancer. In this proposal we will examine the strategy of HPV vaccination for women who have just given birth. We believe that HPV vaccination of these women will be associated with a high level of patient satisfaction and acceptance. If successful, this strategy could play a major role in advancing the acceptance and implementation of HPV vaccination in the United States.
This will enroll 300 mothers of teenage girls and boys to identify barriers to HPV vaccination among low-income, African-American teens.
The purpose of this study is to look at how people respond to the treatment of warts through use of the Candida antigen to get an immune response to rid the body of human papillomavirus (HPV). The immune system is the part of the body that fights infections like HPV which causes warts. This research study will examine the response of your wart when injected with a portion of a common yeast (candida) which is the study drug. Your immune system response will also be looked at by doing a test called an ELISPOT assay. This test is done on blood samples. The results of this test may help us to determine how the Candida antigen affects your wart.
Acrochordon, or soft fibroma, is a common benign skin tumor which is generally regarded as a sign of cutaneous aging or as a reaction to friction since it occurs in the intertriginous areas. Recent studies have shown the presence of human papillomaviruses, especially the mucosal types, on some of the intertriginous lesions. This study is to analyze the different clinical presentations of acrochordon and correlate them with pathologic and molecular human papillomavirus findings. Further goal is to improve the ability to differentiate acrochordon and its possible prevention and treatment. Also, it may have an implication on the transmission and prevention of cervical carcinoma.
This study will evaluate a method of testing for human papillomavirus (HPV) DNA. For women who have had Pap test results that are abnormal, a new test can be done for HPV, that is, viruses that sometimes cause bumpy or flat warts. Such infections all usually disappear by themselves in 1 or 2 years if someone's Pap test shows a mild abnormality. But if the HPV does not go away, the infection can slowly lead to cancer of the cervix. Through this study, researchers will examine patients in conjunction with a colposcopy, that is, a diagnostic tool to determine the cause of abnormal Pap test results. The researchers hope to improve on the efficiency of detecting HPV and reducing the risk of cervical cancer. Patients ages 21 and older who are not pregnant and who have not had a hysterectomy and who are attending a colposcopy clinic may be eligible for this study. This study will enroll 150 patients. Two pilot studies will be done: one at the Cleveland Clinic, with the use of the POI sampler (Preventive Oncology International ) and the other at the University of Arizona, with the use of the Fournier sampler. In the study part that uses the POI sampler, patients will be recruited from the existing colposcopy schedule. For the Fournier sampler, patients will be recruited as they attend their scheduled colposcopy visit. During the procedure, the doctor will collect two (Cleveland Clinic) or three (University of Arizona) specimen from the patients while the patients are sitting. A speculum is not placed in the vagina at that time. Then the doctor will conduct a routine pelvic exam, with the use of a speculum, while the patients are lying down, and perform the colposcopy. One final specimen will be collected before the the colposcopic evaluation. Those three or four specimens will be used just for research purposes, and they make up the only part different from the regular colposcopy exam. The pelvic exams may sometimes be slightly uncomfortable, and patients may have temporary vaginal spotting of blood afterward. The collection of additional specimens may also cause slight discomfort. The research specimens, which will not be labeled with information that directly identifies the patients, will be stored at a repository sponsored by NIH. Those specimens would be tested now or in the future. Participants will be told about the results of their tests as part of the routine management of their abnormal Pap results. Women participating at the University of Arizona will receive $25 for the time they spend in the study. Benefits that patients receive from being part of this study include helping researchers to discover new ways to prevent cervical cancer.
This dose-ranging study is to evaluate an investigational vaccine with the following objectives: (1) To demonstrate that the vaccine is well-tolerated in women (2) To evaluate immune responses in women who are between 16 and 23 years of age at enrollment.