Clinical trials · California
Phenylketonuria clinical trials in California
We’re tracking 3 recruiting phenylketonuria studies with a site in California — including Phase 1/Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06971731RecruitingPhase 3
JNT-517 pill for adults with PKU
This trial tests a new pill called JNT-517 to see if it can lower high blood phenylalanine (Phe) levels in people with PKU. You may be a good fit if you have PKU, are at least 18, and can stick to a steady diet.
Los Angeles, CaliforniaAges 18 years+ - NCT06332807RecruitingPhase 1/Phase 2
Gene therapy trial for classic PKU
This trial tests a one-time gene therapy called NGGT002 for adults with classic PKU who cannot take or do not respond well to current treatments. The goal is to see if it can safely lower blood phenylalanine levels.
Orange, CaliforniaAges 18–55 - NCT07477691RecruitingPhase 4
Immune therapy during Palynziq treatment for PKU
This study tests whether combining a drug called methotrexate with Palynziq (a treatment for PKU) can help control immune responses and improve treatment outcomes. It may be an option for adults with PKU who have never used Palynziq or who have not reached target blood levels after at least 24 weeks.
Los Angeles, CaliforniaAges 18–65
Phenylketonuria trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting phenylketonuria studies listed above.
- Children's Hospital of Orange County
- UCLA David Geffen School of Medicine
- University of California, Los Angeles (UCLA)
What taking part in a phenylketonuria study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Phenylketonuria trials in other states
Common questions
- Are there phenylketonuria clinical trials in California?
- Yes. We're currently tracking 3 recruiting phenylketonuria studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a phenylketonuria study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a phenylketonuria trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New phenylketonuria studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.