Table of Contents
- Trial overview
- Who can participate
- What the study measures
- Study design and phase
- What this means for patients
Trial overview
The available trial for AMMONIUM (15N) CHLORIDE is NCT06247670, a Phase 1 study that is authorised and planned to enroll 144 people.[1] It is described as a double-blind, placebo-controlled, single and multiple ascending dose study of CMP-CPS-001 in healthy volunteers and participants with abnormal heterozygous ornithine transcarbamylase (OTC) genotype.[1]
The trial is linked to urea cycle disorders (UCD), which are the conditions being studied in this research.[1] The brief summary says the main purpose is to evaluate the safety and tolerability of CMP-CPS-001 when given subcutaneously, while AMMONIUM (15N) CHLORIDE is one of the listed interventions in the study.[1]
Who can participate
This study includes healthy volunteers and people with an abnormal heterozygous OTC genotype.[1] In simple terms, that means the researchers are studying both people without the disease and people with a specific genetic change related to OTC.[1]
The trial does not list detailed public eligibility rules in the provided data, so the main known target groups are the two groups named in the title.[1]
What the study measures
The primary outcome measures are incidence of adverse events, vital signs, ECG, clinical laboratory assessment, and physical examination.[1] These are standard ways to check whether participants stay safe during a trial and whether any changes happen in the body.[1]
Adverse events are any unwanted medical problems that happen during the study, whether or not they are caused by the treatment.[1] Vital signs, ECG, lab tests, and physical exams help the research team watch for changes in heart function, body systems, and overall health.[1]
Study design and phase
The study is interventional, which means participants receive study treatments as part of the research plan.[1] It is also double-blind and placebo-controlled, meaning neither the participants nor the study team may know who gets the active study treatment or placebo during the trial.[1]
The title also says the study uses single and multiple ascending dose parts.[1] This means the researchers are testing different dose levels over time to learn more about safety in a careful step-by-step way.[1]
AMMONIUM (15N) CHLORIDE is listed among the interventions as an oral drug, while the study also includes sodium chloride for injection, [13C]sodium acetate given orally, and CMP-CPS-001 given subcutaneously.[1]
What this means for patients
For patients and families, this trial is mainly about early research rather than proving that a treatment works in everyday care.[1] The focus is on whether the study approach is safe and tolerable in people with urea cycle disorders and in healthy volunteers.[1]
Because this is a Phase 1 study, the results are usually used to guide later research, not to make final treatment decisions.[1] The data provided do not include final results, so the main information available is the study purpose, the groups being studied, and the safety measures being tracked.[1]



