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PXE clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT00341419 Completed - Clinical trials for Pseudoxanthoma Elasticum

Genetic Analysis of Patients With Pseudoxanthoma Elasticum

Start date: February 16, 2005
Phase:
Study type: Observational

This study will characterize the gene mutations responsible for pseudoxanthoma elasticum (PXE) and correlate them with disease manifestations in males and females. PXE is an inherited disorder that affects the connective tissue in some parts of the body. Calcium and other minerals are deposited in the connective tissue, causing changes in the skin, eyes, cardiovascular system and gastrointestinal system. Some effects of PXE can cause serious medical problems, while others have less impact. Symptoms often appear earlier and are more severe in females than in males, but there is no way to predict how the disorder will progress in any given individual. Candidates for this study are recruited through PXE International, an organization that provides patient support and supports research on the disease. The organization collects biological samples and medical information on patients and family members to help further research on the disease. Families that have samples from the patient, both parents, and at least one sibling may be eligible for this study. Grandparents and extended family members may be included in certain instances. Participants provide a blood sample, a sample of cells scraped from the inside of the cheek (buccal cells) and a medical history. The samples are analyzed for gene variants and the findings are correlated with disease signs and symptoms. ...