- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01281878
Trial on Treatment of Patients With Primary Hyperoxaluria Type I With Pyridoxal-phosphate (PHOX-B6-Pilot)
October 26, 2012 updated by: Prof. Dr. B. Hoppe, University of Cologne
PILOTSTUDIE ZUR PYRIDOXALPHOSPHATTHERAPIE BEI PATIENTEN MIT PRIMÄRER HYPEROXALURIE TYP I (PHOX-B6-PILOT) Pilot Trial on Treatment of Patients With Primary Hyperoxaluria Type I With Pyridoxal-phosphate
In this study the investigators will prospectively analyze the reduction of urinary oxalate excretion under the treatment with PLP in dosages of 5mg/kg/day up to 20 mg/kg/day and serum level response relationship with PLP as an i.v.
solution used orally in 12 patients with primary hyperoxaluria type I as an inherited autosomal-recessive-disorder leading to increased endogenous oxalate production, urolithiasis and end stage renal disease.
Study Overview
Study Type
Interventional
Enrollment (Actual)
12
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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NRW
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Cologne, NRW, Germany, 50931
- Children´s Hospital University of Cologne
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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
Ages Eligible for Study
5 years to 60 years (Child, Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
Documentation of diagnosis of PH I by any one of the following:
- Liver biopsy confirmation of deficient liver specific peroxisomal alanine-glyoxylate aminotransferase, (AGT or mislocalization of AGT from peroxisomes to mitochondria)
- Homozygosity or compound heterozygosity for a known mutation in the causative gene (AGXT) for PH I
- Male or female subjects between 5 years and 60 years of age
- Renal function defined as an estimated GFR > 60 ml/min normalized to 1.73 m2 body surface area
- Subjects receiving pyridoxal-phosphate before the study must be willing to discontinue therapy with pyridoxal-phosphate for a wash out phase of at least 4 weeks but always until normalization of serum pyridoxal-phosphate levels
- Written informed consent from patients and/or legally acceptable representatives
Exclusion Criteria:
- Pregnant or lactating women
- Women of child-bearing potential who are not using a highly effective contraception method with a pearl-index < 1. Highly effective contraception methods are oral, transdermal, injectable, or implanted contraceptives, IUD, abstinence, or sterile sexual partner and must agree to continue using such precautions during the pyridoxal-phosphate study
- Subjects post liver or kidney transplantation or combined transplantation
- Chronic diarrhoea with the risk of malabsorption
- Any other abnormal finding such as physical examination or laboratory evaluation, in the opinion of the investigator, is indicative of a disease that would compromise the safety taking pyridoxal-phosphate per os and the absorption
- Subjects participating in other clinical trials with investigational products 4 weeks prior to trial entry, during the trial and 4 weeks after the trial
- Subjects who are unable to take the trial medication
- Subjects who are unable to collect 24-hour urine samples or follow other study procedures
- Subjects who are under treatment with L-Dopa, Isoniazid, D-Penicillamine (interactions between these drugs and pyridoxal-phosphate are known and might influence serum pyridoxal-phosphate levels)
- Subjects with known allergies to substances of contents (e.g. Potassium sorbet, raspberry syrup)
- Subjects confined to an institution on judicial or official behalf
- Subjects who are in dependency to the sponsor or the PI of the trial
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?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Pyridoxal-phosphate
Treatment with pyridoxal-phosphate in increasing dosages every six weeks starting with 5mg/kg body weight up to 20 mg/kg body weight.
treatment duration 24 weeks
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Oral solution of pyridoxal phosphate start with 5mg per kg body weight per day in two dosages over 6 weeks, increase stepwise by 5mg/kg body weight every 6 weeks up to 20 mg/kg body weight/d.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The primary endpoint of the study is the reduction of the urinary oxalate excretion (percentage change in urinary oxalate, expressed as mmol/1.73 m2 /day) at week 24 compared to baseline.
Time Frame: 6 month
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6 month
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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.
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 Major Dates
Study Start
December 1, 2010
Primary Completion (Actual)
September 1, 2012
Study Completion (Actual)
September 1, 2012
Study Registration Dates
First Submitted
January 20, 2011
First Submitted That Met QC Criteria
January 21, 2011
First Posted (Estimate)
January 24, 2011
Study Record Updates
Last Update Posted (Estimate)
October 29, 2012
Last Update Submitted That Met QC Criteria
October 26, 2012
Last Verified
October 1, 2012
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Uni-Koeln-1251
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.
Clinical Trials on Primary Hyperoxaluria Type I
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Dicerna Pharmaceuticals, Inc.CompletedKidney Diseases | Urologic Diseases | Genetic Disease | Primary Hyperoxaluria Type 1 (PH1) | Primary Hyperoxaluria Type 2 (PH2)Poland, United Kingdom, New Zealand, United States, Australia, Canada, France, Germany, Israel, Italy, Japan, Lebanon, Netherlands, Romania, Spain
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Dicerna Pharmaceuticals, Inc., a Novo Nordisk companyEnrolling by invitationKidney Diseases | Urologic Diseases | Genetic Disease | Primary Hyperoxaluria Type 1 (PH1) | Primary Hyperoxaluria Type 2 (PH2) | Primary Hyperoxaluria Type 3 (PH3)United States, France, Germany, Japan, Lebanon, Spain, United Kingdom, Australia, Canada, Italy, Netherlands, Norway, Turkey
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Dicerna Pharmaceuticals, Inc., a Novo Nordisk companyRecruitingPrimary Hyperoxaluria Type 3 | Primary Hyperoxaluria Type 2 | Primary Hyperoxaluria Type 1 | Primary HyperoxaluriaUnited States, Canada, Lebanon, Turkey, United Kingdom, Germany, Italy, Japan, Poland, Spain, United Arab Emirates
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Alnylam PharmaceuticalsCompletedPrimary Hyperoxaluria Type 1 (PH1)France, United Kingdom, Netherlands, Israel, Germany
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Alnylam PharmaceuticalsActive, not recruitingPrimary Hyperoxaluria Type 1 (PH1) | Primary HyperoxaluriaUnited States, France, United Kingdom, Israel, Germany
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Alnylam PharmaceuticalsCompletedPrimary Hyperoxaluria Type 1 (PH1)United States, France, United Kingdom, Switzerland, Netherlands, Israel, Germany, United Arab Emirates
-
Dicerna Pharmaceuticals, Inc., a Novo Nordisk companyAvailablePrimary Hyperoxaluria Type 1 (PH1)
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Dicerna Pharmaceuticals, Inc.CompletedPrimary Hyperoxaluria Type 3United States, Germany, Netherlands, United Kingdom
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Ann & Robert H Lurie Children's Hospital of ChicagoMayo Clinic; National Institute of Diabetes and Digestive and Kidney Diseases...CompletedPrimary Hyperoxaluria Type 1
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