Phenylketonuria

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15 Phenylketonuria Trials Near You

Power is an online platform that helps thousands of Phenylketonuria patients discover FDA-reviewed trials every day. Every trial we feature meets safety and ethical standards, giving patients an easy way to discover promising new treatments in the research stage.

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No Placebo
Highly Paid
Stay on Current Meds
Pivotal Trials (Near Approval)
Breakthrough Medication

Gene Therapy for Phenylketonuria

Cleveland, Ohio
This is a single group Phase 1/Phase 2, 1-arm, open-label study with SAR444836, an adeno-associated virus (AAV) vector-mediated gene transfer of human phenylalanine hydroxylase (PAH), for the treatment of adult participants with phenylketonuria (PKU) on a chronic, stable diet. The purpose of the study is to evaluate the safety and efficacy of SAR444836 in reducing phenylalanine (Phe) levels and in the elimination of a Phe restricted diet. Participants will receive a one-time intravenous (IV) administration of SAR444836. The study is constituted of 2 separate parts: a dose escalation part, and a dose expansion part where subsequent participants will be administered a safe and effective dose level identified during the dose escalation part. In both study parts, clinical and laboratory assessments will be collected to: a) assess the incidence of adverse events, and b) evaluate the effect of SAR444836 on reductions in blood Phe levels and maintenance of these Phe levels after elimination of a Phe restricted diet. The study duration will be for a minimum duration of 5 years following SAR444836 administration, for each participant and includes a 6-week screening phase, a 96-week treatment follow-up period after SAR444836 administration, followed by an additional 3 years of long-term safety (and efficacy) monitoring. There will be a total of 47 study visits. Many study visits may occur as remote visits and be performed by a qualified in-home service provider. Actual study duration for an individual participant may be longer than 5 years due to the administration of SAR444836 to participants in Stage 1A in a serial fashion, the duration of the screening period, and/or other factors such as delays in scheduling study visits.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 1, 2
Age:18 - 65

32 Participants Needed

Pegvaliase for Phenylketonuria

Lexington, Kentucky
This trial is testing pegvaliase injections in adolescents with PKU. The goal is to see if these injections are safe and effective. Pegvaliase helps the body break down a harmful substance that people with PKU cannot process on their own. Pegvaliase is a newer treatment for PKU, following earlier treatments like dietary restriction and sapropterin.
No Placebo Group
Pivotal Trial (Near Approval)

Trial Details

Trial Status:Active Not Recruiting
Trial Phase:Phase 3
Age:12 - 17

55 Participants Needed

PTC923 for Phenylketonuria

Indianapolis, Indiana
This trial is testing the safety of a medication called PTC923 in people with phenylketonuria (PKU). PKU patients need to manage their blood phenylalanine levels carefully. PTC923 aims to help control these levels, making it easier for patients to manage their condition. PTC923 is a newer treatment for PKU, following earlier treatments like sapropterin and pegvaliase.
No Placebo Group
Pivotal Trial (Near Approval)

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 3

200 Participants Needed

JNT-517 for Phenylketonuria

Pittsburgh, Pennsylvania
This trial tests a new oral medication, JNT-517, for safety and tolerance. It involves healthy participants and people with phenylketonuria (PKU). Researchers aim to see if JNT-517 can safely reduce certain amino acids in people with PKU.

Trial Details

Trial Status:Active Not Recruiting
Trial Phase:Phase 1, 2
Age:18 - 65

135 Participants Needed

Sepiapterin for Phenylketonuria

Indianapolis, Indiana
The main purpose of this trial is to evaluate the long-term efficacy of sepiapterin on preserving neurocognitive functioning in children with PKU when treatment is initiated in early childhood.
No Placebo Group
Pivotal Trial (Near Approval)

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 3
Age:< 12

56 Participants Needed

L-Phenylalanine for Phenylketonuria Carriers

Guelph, Ontario
This is a clinical intervention study of PKU carriers (cases) and non-carriers (controls). Upon completing the informed consent process, participants will complete baseline measures of chronic mental health prior to the intervention (PHQ-9, GAD-7, BIS-11). Participants will attend the Human Nutraceutical Research Unit (HNRU) at the University of Guelph, fasted, and first undergo baseline measures of cognition and acute mental health (mood) and provide samples or saliva, urine and dried blood spots to evaluate phenylalanine (Phe), tyrosine (Tyr) and their metabolites (PAH pathway functioning) as well as for genetic testing of the PAH gene. Participants will also complete a brief questionnaire which will include age, sex, ethnicity, income, weight and height (measured using a stadiometer and calibrated weigh scale), and confirmation that participants arrived to the lab fasted (i.e. have only had water to drink and no other foods/ beverages prior to analyses). Blood pressure and heart rate will also be measured at baseline. Following baseline tests, participants will consume a pure L-Phe supplement dosed at 100 mg/kg mixed with 125 mL of water and 125mL of orange juice. Blood pressure and heart rate will be repeated at 1-hour post-L-Phe consumption. Two-hours postprandial, participants will repeat the cognitive tests and acute mental health (mood) assessment, blood pressure and heart rate measurement and provide follow-up saliva, urine and dried blood spot samples. Participants will also be asked to report any side effects they experienced with the L-Phe consumption.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased

50 Participants Needed

SAB-176 for Flu

Bethesda, Maryland
This study will evaluate the safety and tolerability of an intramuscular injection of SAB-176 intended for use as a pre/post prophylactic for influenza. This is a Phase 1, randomized, double-blind, placebo-controlled clinical trial in which a total of 28 subjects will receive an injection of either SAB-176 or placebo (normal saline). The investigational product will be administered intramuscularly (IM) on Day 1. Four dose escalation cohorts of 7 subjects (5 active and 2 placebo) each are planned. Subjects will be randomized to receive either SAB-176 or placebo in a double-blinded manner. Progression to subsequent dose-escalating cohorts will be dependent on safety measured through Day 5 after dosing of the previous cohort. Blood specimens will be collected at prescribed intervals to examine pharmacokinetics and immunogenicity. Safety will be actively monitored during investigational product administration and for 60 days following dosing. The decision to advance to the next cohort will be based solely on the safety assessment through Day 5. All safety data will be summarized and reviewed by the PI, the Sponsor's Clinical Monitor, and the Research Monitor prior to next cohort dose-escalation.

Trial Details

Trial Status:Active Not Recruiting
Age:18 - 60

28 Participants Needed

Rapid Drug Desensitization for Allergic Reactions

Chevy Chase, Maryland
The purpose of this study is to determine if rapid drug desensitization (RDD) to Palynziq will improve drug tolerability and treatment persistence in adult patients on commercial Palynziq experiencing hypersensitivity reactions (HSRs) leading to treatment interruption or reduction of dose or dosing frequency. See Section 10.8 for full list of HSR preferred terms. Study details include: * Study duration: Up to 30 weeks (up to 6 weeks for Screening, then RDD, and 24 weeks of follow-up) * RDD duration: 1 day * Palynziq dosing/follow-up duration: 24 weeks * Palynziq dosing frequency: Individualized
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 4

10 Participants Needed

Metabolic Camp for Pregnant Women with Phenylketonuria

Atlanta, Georgia
The purpose of this project is to study the effectiveness of teaching teens and young women with Phenylketonuria (PKU) or Maple Syrup Urine Disease (MSUD) about their disease and nutrition related issues in a camp environment. It will also look at pregnancy outcome results in women with PKU who attended Metabolic Camp and compare their results to other women with PKU who have not attended the Metabolic Camp.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:11+
Sex:Female

200 Participants Needed

Gene Therapy for Phenylketonuria

Atlanta, Georgia
This is a Phase 1/2, open-label, multiple-center, dose escalation and cohort expansion study to evaluate the safety and efficacy of NGGT002 in adult subjects with classic Phenylketonuria (PKU). NGGT002 is an rAAV8 based vector carrying a functional copy of the human PAH gene. Participants will receive a single administration of NGGT002 and will be followed for safety and efficacy for 5 years.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 1, 2
Age:18 - 55

12 Participants Needed

Gene Therapy for Phenylketonuria

Morristown, New Jersey
This is a Phase 1/2, open-label, dose escalation study to evaluate the safety, efficacy and tolerability of BMN 307 in adult PKU subjects with PAH deficiency. Participants will receive a single administration of BMN 307 and will be followed for safety and efficacy.
No Placebo Group

Trial Details

Trial Status:Active Not Recruiting
Trial Phase:Phase 1, 2
Age:15+

100 Participants Needed

L-Phenylalanine for Gut Health

New York, New York
The purpose of this study is to explore how the dietary supplement L-Phenylalanine affects the production of the metabolite phenylpropionic acid (PPA) and changes fungal populations of the gut microbiome.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Early Phase 1

20 Participants Needed

Coping Skills Intervention for Phenylketonuria

Columbia, Missouri
While previous PKU intervention research has largely focused on pharmacological treatment of elevated Phe levels, the adaptation of evidence-based psychosocial therapy holds promise for addressing cognitive and psychological symptoms and significantly improving quality of life. Study goals include: (1) to demonstrate the efficacy and feasibility of a short-term skills-based intervention (Show Me FIRST) for anxiety and depression in adolescents with PKU, and (2) to further establish the psychometric validity of novel assessment measures recently developed by the Investigators that utilize ecological momentary assessment (EMA) to capture "in the moment" neurocognitive and psychological function. The Investigators propose to conduct a randomized controlled trial wherein 30 adolescents with PKU will be randomized to either an immediate intervention group or wait-list/delayed intervention group.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Unphased
Age:10 - 17

30 Participants Needed

Theophylline for Pseudohypoparathyroidism

Boston, Massachusetts
This trial tests a medication in patients with a condition where the body doesn't respond well to hormones to help their bodies respond better.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 4
Age:5 - 21

100 Participants Needed

Zidebactam-Cefepime +1 More for Phenylketonuria

Miami, Florida
This is a Phase I, Single-Center, Open-Label study evaluating the safety and pharmacokinetics of single doses of ZID-FEP and metronidazole alone or in combination utilizing a 3-period, crossover study design. Thirty eligible male and female healthy adult subjects will participate in the study and receive single doses of (1) ZID-FEP 3g IV (ZID 1 g plus FEP 2 g) administered over 1 hour (h); (2) metronidazole 0.5 g IV alone administered over 1 h; and (3) metronidazole 0.5 g IV over 1 h, followed by ZID-FEP 3g IV over 1 h over 3 treatment periods separated by a 48 h washout period.
No Placebo Group

Trial Details

Trial Status:Recruiting
Trial Phase:Phase 1
Age:18 - 45

30 Participants Needed

Why Other Patients Applied

"I have dealt with voice and vocal fold issues related to paralysis for over 12 years. This problem has negatively impacted virtually every facet of my life. I am an otherwise healthy 48 year old married father of 3 living. My youngest daughter is 12 and has never heard my real voice. I am now having breathing issues related to the paralysis as well as trouble swallowing some liquids. In my research I have seen some recent trials focused on helping people like me."

AG
Paralysis PatientAge: 50

"I changed my diet in 2020 and I’ve lost 95 pounds from my highest weight (283). I am 5’3”, female, and now 188. I still have a 33 BMI. I've been doing research on alternative approaches to continue my progress, which brought me here to consider clinical trials."

WR
Obesity PatientAge: 58

"I've been struggling with ADHD and anxiety since I was 9 years old. I'm currently 30. I really don't like how numb the medications make me feel. And especially now, that I've lost my grandma and my aunt 8 days apart, my anxiety has been even worse. So I'm trying to find something new."

FF
ADHD PatientAge: 31

"As a healthy volunteer, I like to participate in as many trials as I'm able to. It's a good way to help research and earn money."

IZ
Healthy Volunteer PatientAge: 38

"I've tried several different SSRIs over the past 23 years with no luck. Some of these new treatments seem interesting... haven't tried anything like them before. I really hope that one could work."

ZS
Depression PatientAge: 51

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How Do Clinical Trials Work?Are Clinical Trials Safe?What Can I Expect During a Clinical Trial?

Frequently Asked Questions

How much do Phenylketonuria clinical trials pay?

Each trial will compensate patients a different amount, but $50-100 for each visit is a fairly common range for Phase 2–4 trials (Phase 1 trials often pay substantially more). Further, most trials will cover the costs of a travel to-and-from the clinic.

How do Phenylketonuria clinical trials work?

After a researcher reviews your profile, they may choose to invite you in to a screening appointment, where they'll determine if you meet 100% of the eligibility requirements. If you do, you'll be sorted into one of the treatment groups, and receive your study drug. For some trials, there is a chance you'll receive a placebo. Across Phenylketonuria trials 30% of clinical trials have a placebo. Typically, you'll be required to check-in with the clinic every month or so. The average trial length for Phenylketonuria is 12 months.

How do I participate in a study as a "healthy volunteer"?

Not all studies recruit healthy volunteers: usually, Phase 1 studies do. Participating as a healthy volunteer means you will go to a research facility several times over a few days or weeks to receive a dose of either the test treatment or a "placebo," which is a harmless substance that helps researchers compare results. You will have routine tests during these visits, and you'll be compensated for your time and travel, with the number of appointments and details varying by study.

What does the "phase" of a clinical trial mean?

The phase of a trial reveals what stage the drug is in to get approval for a specific condition. Phase 1 trials are the trials to collect safety data in humans. Phase 2 trials are those where the drug has some data showing safety in humans, but where further human data is needed on drug effectiveness. Phase 3 trials are in the final step before approval. The drug already has data showing both safety and effectiveness. As a general rule, Phase 3 trials are more promising than Phase 2, and Phase 2 trials are more promising than phase 1.

Do I need to be insured to participate in a Phenylketonuria medical study?

Clinical trials are almost always free to participants, and so do not require insurance. The only exception here are trials focused on cancer, because only a small part of the typical treatment plan is actually experimental. For these cancer trials, participants typically need insurance to cover all the non-experimental components.

What are the newest Phenylketonuria clinical trials?

Most recently, we added A Single-center, Open-label, Study Evaluating Safety and Pharmacokinetics of Single Doses of Zidebactam-Cefepime and Metronidazole Alone or in Combination., Gene Therapy for Phenylketonuria and Rapid Drug Desensitization for Allergic Reactions to the Power online platform.

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