- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00418795
Porphozym in the Treatment of Acute Attacks in AIP
A Multi-centre, Double-blind, Randomized, Placebo-controlled, Parallel Group Trial, Investigating the Efficacy and Safety of Porphozym (Recombinant Human Porphobilinogen Deaminase) in the Treatment of Acute Attacks in AIP
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The primary objective is: To investigate the biochemical efficacy on plasma porphobilinogen (PBG) of Porphozy(recombinant human porphobilinogen deaminase) in subjects with Acute Intermittent Porphyria (AIP) during an attack and the clinical efficacy clinical efficacy of Porphozym™, being the change in pain from baseline to 24 hours after start of treatment. The correlation between the biochemical and clinical efficacy is investigated as well. Further the safety of Porphozym™ is evaluated.
After a screening period lasting as short as possible subjects enrolled in the trial will be randomized to treatment with either Porphozym™ or placebo. Treatment is given over 48 hours. After end of treatment, the subject enters the observation period, which lasts until the discharge from the hospital. Subjects are followed up with visits 14 and 28 days after end of treatment. Additional safety follow-up will be performed 2, 4 and 6 months after end of treatment. At least 36 Subjects will be enrolled in the trial.
The trial drug,is supplied by Zymenex A/S, Denmark in vials for reconstitution in water for injections (WFI).
At start of treatment a bolus injection iv is given to decrease PBG levels ot zero. This is followed by continuous iv infusion of the enzyme over the following 48 hours.
Study Type
Enrollment
Phase
- Phase 2
- Phase 3
Contacts and Locations
Study Locations
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Texas
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Galveston, Texas, United States, 77555-1109
- Univercity Texas Medical Branch
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Informed consent
- Confirmed diagnosis of AIP
- Previous attacks with PBG above the reference level of the laboratory AND exclusion of variegate porphyria (florescence emission of plasma samples is maximal at 626 nm in VP) AND exclusion of hereditary coproporphyria (HCP) (increased ratio of fecal coproporphyrin III to coproporphyrin I found in HCP)
- Acute attack of AIP verified by presence of abdominal and/or back and/or limb pain, diagnosed by the investigator as being caused by AIP
- Urine PBG above 6 mmol/mol creatinine (5 times upper reference level of the central laboratory)
- Male or female aged above 18 year
Exclusion criteria are:
- First acute attack in AIP
- Other reasons for abdominal and/or back and/or limb pain as judged by the investigator
- Therapy with human hemin within 7 days prior to administration of trial drug
- Treatment with any investigational drug within 4 weeks prior to this trial
- Known or suspected allergy to the trial product or related products
- Pregnant or breast-feeding women and women who intend to become pregnant prior to or during the trial
- Women of child-bearing potential who are not using acceptable methods of contraception (systemic contraception, IUD, barrier method or GnRH analogues)
- Previous documented renal impairment defined as above 150 mmol/L or 1.7 mg/dL serum creatinine, indicating a reduction in kidney function of 50% or more
- Any disease or condition that the investigator judges would interfere with the trial
- Previous randomization in this trial
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: DOUBLE
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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Change in Plasma PBG
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Christer Andersson, MD, Umea University
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- rhPBGD-02
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 Acute Intermittent Porphyria
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University of California, San FranciscoNational Institute of Diabetes and Digestive and Kidney Diseases (NIDDK); University... and other collaboratorsCompletedAcute Intermittent Porphyria (AIP) | Hereditary Coproporphyria (HCP) | Variegate Porphyria (VP)United States
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Alnylam PharmaceuticalsTerminatedAcute Hepatic Porphyria | Acute Intermittent Porphyria (AIP) | Hereditary Coproporphyria (HCP) | Variegate Porphyria (VP) | ALA Dehydratase Deficient Porphyria (ADP) | Hepatic Porphyrias | Porphyria AcuteUnited States
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Alnylam PharmaceuticalsCompletedPorphyria, Acute Intermittent | Acute Intermittent Porphyria (AIP) | Acute Hepatic Porphyria (AHP) | Acute PorphyriaSweden
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The University of Texas Medical Branch, GalvestonTerminatedHereditary Coproporphyria | Acute Intermittent Porphyria | Variegate PorphyriaUnited States
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Alnylam PharmaceuticalsCompletedAcute Hepatic Porphyria | Acute Intermittent Porphyria | Porphyria, Acute Intermittent | Acute Porphyria | Hereditary Coproporphyria (HCP) | Variegate Porphyria (VP) | ALA Dehydratase Deficient Porphyria (ADP)United States, Spain, United Kingdom, Korea, Republic of, Australia, Bulgaria, Canada, Denmark, Finland, France, Germany, Italy, Japan, Mexico, Netherlands, Poland, Sweden, Taiwan
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Alnylam PharmaceuticalsCompletedAcute Intermittent PorphyriaUnited States, United Kingdom, Sweden
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The University of Texas Medical Branch, GalvestonActive, not recruitingHereditary Coproporphyria | Acute Intermittent Porphyria | Variegate PorphyriaUnited States
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Nordlandssykehuset HFUniversity of Oslo; Norwegian University of Science and Technology; The University... and other collaboratorsRecruitingPorphyria, Acute IntermittentNorway
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Alnylam PharmaceuticalsCompletedAcute Intermittent PorphyriaUnited States, United Kingdom, Sweden
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