10 Clinical Trials for Various Conditions
The clinical study is a multi-center, retrospective, blinded, matched-pair, two-arm clinical study in which one test assessment and a control assessment of liquid-based cytology (LBC) pap tests are performed and compared to a reference. The control method is defined as the assessment of LBC pap tests performed by a cytotechnologist (CT) and/or cytopathologist (CP) using standard laboratory cervical cytology practices (i.e. a manual assessment) and following The Bethesda System for Reporting Cervical Cytology (TBS). The control method is referred to as the "standard method". The test method is referred to as the AI-assisted method. The AI-assisted method is defined as the assessment of the same LBC pap test as in the standard method, but with the Techcyte SureView Cervical Cytology System, which has pap tests being scanned on the Pramana SpectralHT Cubiq whole slide scanner, analyzed with the Techcyte Cervical Cytology Algorithm (TCCA) and presented on the Techcyte Viewer, using the Dell U3223QE Monitor for assessment by a CT/CP following the TBS. In addition, the time spent reviewing the samples with both methods will be measured such that the CT workload limit for AI-assisted assessment can be established. The LBC pap tests to be assessed in the clinical study must have been prepared with either ThinPrep® Pap Test (Hologic) or BD SurePath™ (Beckton, Dickinson and Company). The study aims to enroll for each preparation method an equal number of samples.
The aim of this study is to see whether a new self-sampling device, the Delphi Screener (Delphi Devices, Scherpenzeel, Netherlands), can be used for cervical cancer screening. The results using the new device will be compared to results using the current gold standard. The gold standard is clinician-collected endo-cervical and ecto-cervical specimens (often referred to as a 'Pap smear'). Additionally, women will be asked about the acceptability of using the device and how easy it is to understand the user instructions. The Delphi Screener is a sterile, plastic, syringe-like device containing buffered saline which allows a woman to collect her own vaginal lavage (to 'self-squirt'). The hypothesis is that the device may work well for cervical cytology and will be acceptable to the women in the study.
The purpose of this study is to assess whether a system that couples automated screening of Pap Tests with transmission of machine selected digital images, and review by cytologists at a remote location, performs to a clinically effective standard of accuracy.
Background: * Gardasil , a recently approved vaccine for the sexually transmitted human papillomavirus (HPV), provides immunity to four types of HPV that are associated with genital warts and cervical, vaginal, and vulvar precancer and cancer. The vaccine has been shown to be highly effective in preventing infection with these HPV types and was approved for use by the Food and Drug Administration. * More research is needed about the vaccine s ability to induce immunity in individuals with suppressed immune systems, such as those who have had other kinds of cancer treatment such as stem cell transplant. Genital warts, precancer, and cancer have been reported as a late complication after stem cell transplant. Researchers are interested in determining whether the HPV vaccine is safe to give and able to induce immunity in female stem cell transplant recipients, their female donors, and healthy female volunteers. Objectives: - To assess the safety and immune response of the HPV vaccine in female recipients of stem cell transplants who are either off or on stable doses of immunosuppression. Eligibility: * Females between 18 and 50 years of age who have had allogenic stem cell transplants. * Healthy female volunteers, including stem cell donors, are also eligible for this study. Design: * Participants will be screened with a physical examination, blood and urine tests, and saliva samples, and will be asked to complete a sexual quality of life questionnaire. * Sexually active participants will also have a routine gynecologic evaluation. * Participants will receive three HPV vaccinations according to the standard vaccination schedule (with the second and third following 2 and 6 months after the first). Participants will record their daily temperature and any reactions to the vaccine on a vaccine report card for 1 week after each vaccination. * Participants will have clinic visits for further testing 2, 6, 7, and 12 months after receiving the first HPV vaccine.
Purpose: To assess equivalence between low cost manual liquid based cytology (pap smear) and standard Thin prep cytology screening. Participants: 100-120 healthy women presenting for standard pap smear screening Procedures (methods): After routine care pap smear, another pap smear will be performed and placed in the study medium. Clinical care pap and study pap will be reviewed by a single pathologist to assess for equivalent findings. Hypothesis: Manual liquid based cytology is equivalent to conventional liquid based cytology.
Background: * The Mississippi Delta (which includes the counties along the Mississippi River) is one of the poorest areas in the United States. Women living in the Mississippi Delta have disproportionately high rates of cervical cancer, but they are unlikely to come to clinics except perhaps for giving birth, years before they are diagnosed with cancer. * To improve rates of screening, researchers are attempting an outreach study to see whether under-screened women, if approached by door-to-door recruitment, would get screened by one of two methods (home-based self-collection and testing, or a clinic exam) and which method they would prefer. Objectives: - To assess/measure increased participation of under-screened women living in the Mississippi Delta in cervical cancer screening by offering women the opportunity to get screened by one of two possible community outreach-based cervical cancer screening modalities, self-collection and HPV testing or clinic-based cytology screening, the current standard of care. Eligibility: - Women between 26 and 65 years of age, who are not pregnant currently or in the past 8 weeks, have an intact cervix, have no history of cancer, and have not been screened for cervical cancer in the past 3 years. Design: * Researchers will recruit participants on a door-to-door basis. Researchers will recruit all eligible women within a household. Recruitment will be done only during daylight hours but at the end of the working day to maximize the chances of finding women at home. * Eligible women willing to participate will complete a questionnaire with demographic and medical information. * Participants will be asked to choose the screening method of their preference. If they choose self-collection with HPV testing, they will be given a self-collection kit and asked to perform the self-collection and return the kit within 1 month. Participants who choose to have cytology screening will be provided with the phone number and location of the local health department clinic and will be encouraged to schedule their screening within the following month. * Women who do not complete their participation within 1 month will be considered noncompliant with their chosen intervention. Researchers will re-contact noncompliant women to offer them participation in the study, including permitting them to refuse to participate or to choose the alternative intervention....
The population of HIV infected women seen at Boston Medical Center may have a higher frequency of anal cytologic and histologic abnormalities than what is reported for the non-HIV infected population.
Background: * In most women, HPV infection does not cause symptoms and the infection goes away on its own. In a small percentage of women, the HPV infection does not go away and sometimes can result in cervical precancer or cancer. * There are several different types of HPV. A better understanding of which types are related to cervical precancer and cancer may help guide doctors in clinical management of women who test positive for HPV and better understand why some women develop disease while others do not. Objectives: * To determine whether certain types of HPV are more risky than others and if so, whether they warrant separate detection in screening for cervical precancer and cancer. * To determine if lasting infection by different HPV types carry different risk of cervical precancer and cancer. * To determine what viral and genetic factors influence the development of cervical precancer and cancer. * To evaluate new HPV tests and new biomarkers of cervical cancer risk. Eligibility: -Women 30 years of age and older who are in the cervical cancer screening program at the Kaiser Permanente health plan in Northern California. Women who tested positive for HPV and a random sample of women who tested negative for the virus are included. Design: -Data about participants genetic background and the type of carcinogenic HPV with which they are infected are analyzed.
This study will provide data on the performance of the BD SurePath Plus™ Pap test for identifying high grade cervical disease. This study will be conducted with approximately 12,500 women undergoing routine cervical cancer screening, of whom women with abnormal cytology and/or positive HPV test will be selected to undergo colposcopy and biopsy/ECC. Subjects with abnormal cytology results with biopsy results of less than or equal to CIN1 or CIN2 untreated will be asked to return in 6-8 months for follow-up testing. Subjects may be asked to proceed to a longer-term follow-up study and undergo cytological evaluation annually for 3 years (separate study).
Therapeutic irradiation to the head and neck for cancer damages salivary glands present in the radiation field. Despite long recognition of radiation-induced salivary hypofunction, and the associated oral morbidities, the specific damage mechanism(s) is not known and the structure and functional integrity of the surviving parenchymal tissue has not been well-documented. Detailed knowledge of the latter is particularly necessary in order to design appropriate corrective therapies. It is the purpose of this study to provide such a detailed structural and functional assessment of human parotid glands following irradiation. The study will examine 20 patients beginning just prior to therapeutic irradiation and continuing at intervals for 3 years for a total of 5 study visits. Study visits (prior to irradiation and at 4 weeks, 12 weeks, 12 months and 36 months post-irradiation) will include the following procedures: i) detailed oral exam and structured interview; ii) salivary gland functional assessment; iii) sialography of each parotid gland; iv) 99mTcO4 scan of the salivary glands; and v) a magnetic resonance imaging (MRI) scan of the parotid glands. Based on previous single observation studies in humans, and more detailed animal studies, we hypothesize that ionizing radiation will lead to reduced parotid gland function and diminished salivary parenchymal tissue (with a preferential loss in acinar versus ductal cells). Further, we hypothesize that the parenchymal loss will increase with time (replaced by fat and connective tissue) and lead to progressive irreversible salivary dysfunction.