NCT06953466 · Quoin Pharmaceuticals
Clinical Study of QRX003 Lotion in Subjects With Netherton Syndrome
What this study is about
The goal of this clinical trial (via an expanded access Treatment Protocol) is to learn if QRX003 (an experimental drug) applied topically to the skin (including up to the entire body \[except the scalp\]) works to treat the genetic disease Netherton syndrome. It will also learn about the safety of QRX003. The main questions the trial aims to answer are: 1.
View original scientific description
The goal of this clinical trial (via an expanded access Treatment Protocol) is to learn if QRX003 (an investigational drug) applied topically to the skin (including up to the entire body \[except the scalp\]) works to treat the genetic disease Netherton syndrome. It will also learn about the safety of QRX003. The main questions the trial aims to answer are: 1. Does QRX003 impact the clinical presentation of NS in adults and minors by improving the clinical symptoms (diseased skin area, itch, and discomfort; based on clinical scoring, subject self-assessment, and other criteria)? 2. What medical problems do participants have when taking QRX003? 3. What percent of subjects will require rescue therapy? Participants will: Take drug QRX003 twice daily (applied topically to all affected areas of the body excluding the scalp) for 3 months, visit the clinic once every 4-6 weeks for checkups and tests, and to keep a dosing diary that records the times they applied the drug.
Interventions
DRUG
QRX003, 4% Lotion
QRX003 Topical Lotion containing 4% active drug (serine protease inhibitor)
Primary outcome measures
Proportion of subjects with 1-point reduction on IGA
Time frame: Up to week 16
Description: Proportion of subjects with 1-point reduction on the Investigator's Global Assessment (IGA) from Baseline. The IGA assesses overall severity of a subject's NS based on a 5-point scale where 0 = clear, 1 = almost clear, 2 = mild, 3 = moderate, and 4 = severe.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Subject is a male or non-pregnant female at least 14 years of age.
- Females must be post-menopausal , surgically sterile , or use an effective method of birth control , for the duration of the study and for 3 months following completion of treatment. Women of childbearing potential (WOCBP) must have a negative urine pregnancy test (UPT) at Visit 1/Screening and Visit 2/Baseline.
- Subject has a clinical diagnosis of NS and agrees to genetic testing at Visit 1/Screening for confirmation of NS diagnosis if the subject does not have test results confirming a SPINK5 mutation.
- Subject is in good general health and free of any disease state or physical condition that might impair evaluation of NS or exposes the subject to an unacceptable risk by study participation.
- Subject is on a stable treatment regimen including topical therapy for NS prior to baseline that is expected to remain stable for the duration of the study
Exclusion criteria
- Subject is pregnant, lactating, or is planning to become pregnant during the study.
- Subject has any skin pathology in the Treatment Area or condition that, could interfere with the evaluation of the test article or requires use of interfering topical, systemic, or surgical therapy.
- Subject has active cancer of any type excluding non-melanoma skin cancer outside of the Treatment Area.
- Subject has diabetes of any type, except non-insulin dependent diabetes mellitus that is reasonably controlled.
- Subject has evidence of active infection during screening, or serious infection within 30 days prior to Visit 2/Baseline.
- Subject has known human immunodeficiency virus, hepatitis B or C virus, or active or latent tuberculosis.
- Subject has used ultraviolet phototherapy within the Treatment Area within 10 weeks prior to Visit 2/Baseline.
- Subject has used topical prescription treatment in the Treatment Area within 10 weeks prior to Visit 2/Baseline.
- Subject has used any topical steroid prescription treatments in the Treatment Area within 10 weeks prior to Visit 2/Baseline.
- Subject is currently enrolled in an investigational drug, biologic, or device study.
- Subject has used an investigational drug, biologic, or device treatment within 30 days prior to Visit 2/Baseline.
Where
- Chicago, Illinois
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 20, 2025 · Source of record for eligibility and locations