World Health Organization site
Skip Navigation Links

Main
Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ClinicalTrials.gov
Last refreshed on: 12 December 2020
Main ID:  NCT01525875
Date of registration: 01/02/2012
Prospective Registration: Yes
Primary sponsor: Mark Lebwohl
Public title: Magnesium Supplements In The Treatment Of Pseudoxanthoma Elasticum (PXE)
Scientific title: Magnesium Supplements In The Treatment Of Pseudoxanthoma Elasticum (PXE)
Date of first enrolment: August 2012
Target sample size: 44
Recruitment status: Completed
URL:  https://clinicaltrials.gov/show/NCT01525875
Study type:  Interventional
Study design:  Allocation: Randomized. Intervention model: Parallel Assignment. Primary purpose: Treatment. Masking: Triple (Participant, Investigator, Outcomes Assessor).  
Phase:  Phase 2
Countries of recruitment
United States
Contacts
Name:     Mark Lebwohl, MD
Address: 
Telephone:
Email:
Affiliation:  Icahn School of Medicine at Mount Sinai
Key inclusion & exclusion criteria

Inclusion Criteria:

- Male or female subject at least 18 years of age

- If female, the subject is not pregnant or nursing

- If female of child bearing potential, the subject has a negative urine pregnancy test
at the first visit, and agrees to use an approved method of contraception (hormonal
contraceptives [birth control pills, implants [Norplant] or injections [DepoProvera]);
intrauterine device (IUD); two forms of barrier methods [condoms and diaphragm]; or
abstinence (no sexual activity) throughout the entire study

- Biopsy confirmed diagnosis of pseudoxanthoma elasticum (documenting some calcification
of elastic fibers)

- Subject has a clinical disease severity grade of at least "1" (Poorly defined, barely
visible macules) at screening.

- Normal kidney function tests

Exclusion Criteria:

- Any subject who is pregnant or becomes pregnant during the study

- Subjects with a serum creatinine greater than 1.6 mg/dL

- Subjects with hypermagnesemia, hypokalemia, or idiopathic hypercalciuria

- Subjects with kidney disease or renal tubular defects (eg. Fanconi's syndrome), or on
dialysis

- Subjects with hypothyroidism or hypoparathyroidism or primary hyperparathyroidism

- Subjects with acute gout

- Subjects with malabsorption, or osteomalacia

- Subjects on diuretics, magnesium containing antacids, or anabolic steroids

- Subjects with Cushing's syndrome

- Subjects receiving lithium and those with significant psychiatric disorders that would
likely interfere with participation in this study

- Subjects taking anti-seizures medications and anti-arrhythmics medications

- Subjects on tetracycline or metronidazole and ace inhibitors

- Subjects taking cyclosporine or calcineurin inhibitors



Age minimum: 18 Years
Age maximum: N/A
Gender: All
Health Condition(s) or Problem(s) studied
Pseudoxanthoma Elasticum
Intervention(s)
Drug: Magnesium Oxide
Drug: Placebo
Primary Outcome(s)
Von Kossa Staining Per Unit Area of Dermis [Time Frame: up to 2 years]
Secondary Outcome(s)
Central Retinal Thickness [Time Frame: 2 years]
Number of Participants With a 1-point Decrease of Target Lesions [Time Frame: up to 2 years]
VAS - Visual Acuity Score [Time Frame: 2 years]
LogMar [Time Frame: 2 years]
Secondary ID(s)
FD-R-0003903
GCO 09-1157
Source(s) of Monetary Support
Please refer to primary and secondary sponsors
Secondary Sponsor(s)
Ethics review
Results
Results available: Yes
Date Posted: 25/04/2019
Date Completed:
URL: https://clinicaltrials.gov/ct2/show/results/NCT01525875
Disclaimer: Trials posted on this search portal are not endorsed by WHO, but are provided as a service to our users. In no event shall the World Health Organization be liable for any damages arising from the use of the information linked to in this section. None of the information obtained through use of the search portal should in any way be used in clinical care without consulting a physician or licensed health professional. WHO is not responsible for the accuracy, completeness and/or use made of the content displayed for any trial record.
Copyright - World Health Organization - Version 3.6 - Version history