Copper Histidinate Treatment for Menkes Disease

February 26, 2026 updated by: Sentynl Therapeutics, Inc.
This expanded access protocol provides subcutaneous copper histidinate for Menkes disease patients under 6 years of age.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Approved for marketing

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Expanded Access

Expanded Access Type

Expanded Access Type

Describes the category of expanded access under U.S. Food and Drug Administration (FDA) regulations. There are three types of expanded access:
  • Individual Patients: Allows a single patient, with a serious disease or condition who cannot participate in a clinical trial, access to a drug or biological product that has not been approved by the FDA. This category also includes access in an emergency situation.
  • Intermediate-size Population: Allows more than one patient (but generally fewer patients than through a Treatment IND/Protocol) access to a drug or biological product that has not been approved by the FDA. This type of expanded access is used when multiple patients with the same disease or condition seek access to a specific drug or biological product that has not been approved by the FDA.
  • Treatment IND/Protocol: Allows a large, widespread population access to a drug or biological product that has not been approved by the FDA. This type of expanded access can only be provided if the product is already being developed for marketing for the same use as the expanded access use.
  • Intermediate-size Population

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85016
        • Phoenix Children's Hospital
    • California
      • Sacramento, California, United States, 95817
        • University of California Davis Medical Center
      • San Diego, California, United States, 92123
        • Rady Children's Hospital
    • Colorado
      • Aurora, Colorado, United States, 80045
        • Children's Hospital Colorado
    • Connecticut
      • Hartford, Connecticut, United States, 06106
        • Connecticut Children's Medical Center
    • Florida
      • Hollywood, Florida, United States, 33021
        • Memorial Healthcare Systems
      • St. Petersburg, Florida, United States, 33701
        • Johns Hopkins All Children's Hospital
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Emory University
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Lurie Children's Hospital of Chicago
    • Iowa
      • Iowa City, Iowa, United States, 52242
        • University of Iowa Stead Family Children's Hospital
    • Maine
      • Portland, Maine, United States, 04102
        • Maine Medical Center
    • Michigan
      • Grand Rapids, Michigan, United States, 49503
        • Helen DeVos Children's Hospital
    • Montana
      • Helena, Montana, United States, 59601
        • Shodair Children's Hospital
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke University Hospital
    • Oregon
      • Portland, Oregon, United States, 97239
        • Oregon Health & Science University
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Children's Hospital of Philadelphia
      • Pittsburgh, Pennsylvania, United States, 15224
        • Children's Hospital of Pittsburgh
    • Tennessee
      • Nashville, Tennessee, United States, 37232
        • Monroe Carrell Jr. Children's Hospital at Vanderbilt University Medical Center
    • Texas
      • Fort Worth, Texas, United States, 76104
        • Cook Children's Health Care System
    • Washington
      • Seattle, Washington, United States, 98105
        • Seattle Children's Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

1 second to 6 years (Child)

Accepts Healthy Volunteers

N/A

Description

Inclusion Criteria:

  1. The subject must have been treated in protocol 09-CH-0059 or must be a newly diagnosed Menkes disease patient in the US.
  2. Parent or legal guardian is willing and able to sign and date an informed consent form.
  3. Male or female, aged 0 to <6 years of age.
  4. Diagnosis of Menkes disease: A confirmed gene mutation in ATP7A is not required; however, the test must be at least pending prior to initiating therapy. For those patients whose molecular ATP7A gene mutation confirmation is pending, they should have serum copper <75 mcg/dL. If the mutation is subsequently not confirmed, the patient should discontinue treatment.
  5. Ability to adhere to the prescribed subcutaneous copper histidinate injection regimen.
  6. Willingness to adhere to all recommended visits and procedures.
  7. Resident of the US.

Exclusion Criteria

  1. Diagnosis of Wilson disease.
  2. Any disease or condition that, in the opinion of the Investigator, has a high probability of precluding the subject from completing the study or where the subject cannot or will not appropriately comply with study requirements.
  3. Receipt of concomitant medication or device not approved for any use (i.e. experimental) by FDA within 30 days prior to screening for this study, except for participation in protocol 09-CH-0059.
  4. Patient/caregiver cannot or will not appropriately comply with protocol recommendations (e.g., site visits, renal monitoring).
  5. Currently receiving any concomitant copper-containing medications.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sentynl Therapeutics, Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 27, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 29, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 30, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 26, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CYP-001

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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