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Phenylketonuria clinical trials in Dallas, TX

7 studies for Phenylketonuria are looking for participants at sites in and around Dallas (within about 30 miles). Open a study to see who can join and how to contact the study team.

Recruiting for a study here? Feature it at the top of this page — $99 for 30 days →

Immune Modulation During Palynziq® Treatment in Adults (IMPALA)

RecruitingPhase 4
  • UT Southwestern Medical Center, Dallas
Ages 18 to 65 · All sexes · Updated Nov 10, 2026 · NCT07477691

A Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of AG-181 in Subjects With Phenylketonuria

RecruitingPhase 1
  • University of Texas Southwestern Medical Center (UTSW), Dallas
Ages 18 to 69 · All sexes · Updated Oct 28, 2026 · NCT07241234

A Study of JNT-517 in Participants With Phenylketonuria (PKU)

RecruitingPhase 3
  • University of Texas Southwestern, Dallas
Ages 4 and older · All sexes · Updated Oct 21, 2026 · NCT06971731

AAV Gene Therapy Clinical Study in Adult Classic PKU (PHEdom)

RecruitingPhase 1/2
  • University or Texas, Southwestern medical Center, Dallas
Ages 18 to 55 · All sexes · Updated Aug 18, 2026 · NCT06332807

A Long-Term Study of JNT-517 in Participants With Phenylketonuria

RecruitingPhase 3
  • Children's Medical Center Dallas, Dallas
  • University of Texas Southwestern Medical Center, Dallas
Ages 4 and older · All sexes · Updated May 1, 2026 · NCT06628128

A Long-term, Post-marketing Safety Study of Palynziq in Patients With PKU (PALace)

RecruitingObservational study
  • University of Texas Southwestern Medical Center, Dallas
All ages · All sexes · Updated Mar 25, 2026 · NCT05813678

A Long Term, Post-marketing Study of Immune Response in Patients Receiving Palynziq Treatment for PKU (PALisade)

RecruitingObservational study
  • UT Southwestern Medical Center, Dallas
All ages · All sexes · Updated Mar 24, 2026 · NCT06305234

About Phenylketonuria

In phenylketonuria (PKU), your body can't process phenylalanine, an amino acid in most foods. Read about genetics, screening, and special diets.

More about Phenylketonuria on MedlinePlus

Phenylketonuria trials in other cities

Other studies in Dallas

From ClinicalTrials.gov, data retrieved Nov 15, 2026. Each study sets its own eligibility; the study team decides who can join.