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Research Studies

Division of Human Genetics Research Studies

Find research studies available to children cared for by the Division of Human Genetics team.

Appointments and referrals

CTX and Idiopathic Bilateral Cataracts in Pediatric Patients

CTX is typically a highly progressive disease, with case reports of symptoms that first appear at any time from birth through adulthood and then worsen over time. Because idiopathic bilateral cataracts occur at an early age in many children with CTX, biomarker testing of these children presents an opportunity for diagnosing children with CTX. Eligible participants will be asked to give a small blood sample and urine sample, and may have genetic testing done to see if they have the gene for CTX. This study will take place on 1 visit for approximately 30 minutes.

Phase: N/A

Actively recruiting: No

Category: Adults, Children, One-Time Visit Studies

Hunter Syndrome JR-141 Study

The purpose of this study is to find out if JR-141, an experimental drug, works better than the standard treatment, idursulfase, for MPS II (Hunter Syndrome) and how safe and effective it is in the management of central nervous system symptoms (such as brain or body function loss) and other body symptoms (including lungs, ears, heart, kidneys, and eyes, as well as any type of liver, bone or joint abnormalities) related to MPS II. Since JR-141 is an investigational drug, it has not been approved by the Food and Drug Administration (FDA).

Phase: Phase II

Actively recruiting: Yes

Category: Adults, Children

mRNA-3927 for Propionic Acidemia Study

The purpose of this study is to find out more about an investigational drug called mRNA-3927 (the study drug). An "investigational drug" is a drug that is being tested and is not approved by the U.S. Food and Drug Administration (FDA). We want to see how safe the study drug is and if it works for participants with propionic acidemia (PA).

Phase: Phase I, Phase II

Actively recruiting: Yes

Category: Adults, Children

Natural History of Homocystinuria

The goal of this study is to observe patients with Homocystinuria (CBSDH) over 3 years to learn how their disease is managed under regular circumstances. This study does not involve any investigational medications, but will provide information to researchers who are currently developing a medication to treat the disease. The study has 5 main parts, all of which are provided free of charge to participants: DXA exam, blood draws, ophthalmology exam, cognitive testing, and physical exams. To learn more about the study, please contact our team via the information listed below.

Phase: N/A

Actively recruiting: Yes

Category: Adults, Children

OTOF Hearing Loss Gene Therapy

In this gene therapy study, we will treat children with deafness caused by an abnormal gene called otoferlin (OTOF).  We will try to transfer the normal human OTOF gene into cells of the inner ear, using a modified form of a non-disease-causing virus.  This study will see if this gene therapy is safe and improves hearing. The study drug, and the device to deliver it to the ear, are investigational, meaning that they are not approved by the United States Food and Drug Administration (FDA).  This study is the first time that this study drug, and the device to deliver it, will be used in humans.
The study drug is placed into the inner ear during a surgical procedure.  Children are then monitored for about 2 years for any side effects, for any effects on the body, and for hearing improvement.  Different doses will be tested for their safety and effectiveness.  There are about 14 visits to CHOP, including one surgery visit including an overnight hospital stay.   Participants undergo follow up audiology tests monthly for 3 months, then at 6 months, then at 1 and 2 years.  This includes auditory brainstem response (ABR) testing, which may require sedation.  There are also repeated research blood tests, urine samples, physical examinations, and interviews.To be eligible, children must be age 2-17 and have profound deafness in both ears.  Children are not eligible if they have already received cochlear implants in both ears.  Once in this study, children should not undergo cochlear implantation in the treated ear, unless the treatment fails to improve hearing after a 6 month period.The main risks of this study are from the study drug and the surgery to deliver it.  These include injury to the inner ear from the drug or surgery, injury to the eardrum, risks of anesthesia for the surgery and sedation for the ABR tests, local site inflammation or infection, injury to the liver, and delay of cochlear implantation in the treated ear if the treatment does not improve hearing.  Since the study drug has never been given to humans before, it is possible there are other risks we do not know about yet.
Participants might benefit if the study drug improves their hearing.  However, it is possible they will not benefit directly from participating in this study. 

Phase: Phase I, Phase II

Actively recruiting: Yes

Category: Children

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