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Gaucher's DiseasePhase 1NCT00001410

PEG-Glucocerebrosidase for the Treatment of Gaucher Disease

A Phase 1 study testing Lysodase in people with Gaucher's Disease, run by National Institute of Mental Health (NIMH) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Gaucher disease is a lysosomal storage disease resulting from glucocerebroside accumulation in macrophages due to a genetic deficiency of the enzyme glucocerebrosidase. It may occur in patients of all ages. Read more about this study

Who is it for?
Any age
Conditions the study is for
Gaucher's Disease
What is being tested?
Lysodase
How many people
18 participants
Where
1 siteUnited States
Study dates
Oct 1993to Dec 2001
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Patients must be at least 3 years of age.

Must have a biochemically confirmed (enzyme) and/or genetically confirmed diagnosis of type 1 or type 3 Gaucher disease.

Clinical or laboratory signs suggesting need for therapy which will include at least 2 of the following: hemoglobin less than 11 gm/dl; platelets less than 90,000/mm(3); hepatomegaly and/or splenomegaly.

Patient/Guardian must provide written informed consent.

No pregnant or breast feeding women.

No women/men of reproductive potential unless they agree to use an effective contraceptive method.

No patients treated with alglucerase or imiglucerase during the 6 months prior to study entry.

No patients with the diagnosis of type 2 Gaucher disease.

No patients who have a life-threatening disease or are gravely ill.

No patients who have rapidly progressing fatal illness or concomitant malignancy.

No patients who have a chronic infectious disease including HIV or hepatitis B.

No patients chronically on other medications which may interfere with the drug's metabolism or activity.

No patients who received blood transfusion within a month prior to study entry.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institute of Mental Health (NIMH)

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: A Phase I and II Study of PEG-Glucocerebrosidase in Patients With Type 1 or Type 3 Gaucher Disease

Gaucher disease is a lysosomal storage disease resulting from glucocerebroside accumulation in macrophages due to a genetic deficiency of the enzyme glucocerebrosidase. It may occur in patients of all ages. The condition is marked by enlargement of the liver and spleen (hepatosplenomegaly), low blood and platelet counts, and bone abnormalities. The condition is passed from generation to generation on via autosomal recessive inheritance. There are actually three types of Gaucher disease.

Type I is the most common form. It is a chronic non-neuronopathic form, meaning the disease does not affect the nervous system. The symptoms of type I can appear at any age.

Read more

Type 2 Gaucher disease presents prenatally or in infancy and usually results in death for the patient. Type 2 is an acute neuronopathic form and can affect the brain stem. It is the most severe form of the disease.

Type 3 Gaucher disease is also neuronopathic, however it is subacute in nature. This means the course of the illness lies somewhere between long-term (chronic) and short-term (acute).

Currently there is not a cure for Gaucher disease. Treatment for the disease has traditionally been supportive. In some severely affected patients, bone-marrow transplants have corrected the enzyme deficiency, but it is considered a high-risk procedure and recovery can be very slow. Enzyme replacement therapy is another therapy option and has been approved by the Food and Drug Administration (FDA) for use in type 1 patients.

PEG-glucocerbrosidase is a drug designed to clear out the accumulation of lipid (glucocerebroside) from the blood stream. The drug is actually an enzyme attached to large molecules called polyethylene glycol (PEG). The large molecules of PEG allow the enzyme to remain in the blood stream for long periods of time. By modifying glucocerebrosidase with PEG, it is believed that smaller doses will be required, meaning a reduction in cost for the patient and more convenient administration of the drug. The purpose of this study is to evaluate the effects and safety of enzyme replacement therapy using PEG- glucocerebrosidase for the treatment of Gaucher disease.

Read the detailed description

The purpose of this clinical study is to evaluate the biochemical and therapeutic effects and safety of enzyme replacement therapy using polyethyleneglycol (PEG) modified glucocerebrosidase for the treatment of Gaucher disease and to evaluate the benefit to risk ratio. The study is designed to determine the safety and efficacy in Gaucher patients of recombinantly produced human glucocerebrosidase, which is PEG modified. Parameters to be monitored include hemoglobin, platelet counts, organ size, and extent of bony involvement. Pharmacokinetic, pharmacodynamic, and antibody studies will also be evaluated.

Being tested
Lysodase
Keywords
Recombinant Production, Inherited Disease, Lysosomal Disorder, Inborn Error of Metabolism, Enzyme Replacement Therapy, Glucocerebrosidase, Polyethylene Glycol, Gaucher Disease, Recombinant Enzyme
Medical subject headings
Gaucher Disease, Genetic Diseases, Inborn, Metabolism, Inborn Errors

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LysodaseDrug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Nov 1999 (estimated)
  2. Study startOct 1993
  3. Study completionDec 2001

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Enrolment
18 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00001410
Sponsor's protocol ID
940014
Other IDs
94-M-0014
Status last verified
Dec 2001
First submitted
3 Nov 1999
Last updated
4 Mar 2008
Results posted
No

Publications

  • Martin BM, Sidransky E, Ginns EI. Gaucher's disease: advances and challenges. Adv Pediatr. 1989;36:277-306. No abstract available.

    PubMed 2675571
  • Martin BM, Tsuji S, LaMarca ME, Maysak K, Eliason W, Ginns EI. Glycosylation and processing of high levels of active human glucocerebrosidase in invertebrate cells using a baculovirus expression vector. DNA. 1988 Mar;7(2):99-106. doi: 10.1089/dna.1988.7.99.

    PubMed 3282855
  • Rappeport JM, Ginns EI. Bone-marrow transplantation in severe Gaucher's disease. N Engl J Med. 1984 Jul 12;311(2):84-8. doi: 10.1056/NEJM198407123110203.

    PubMed 6377066

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Lysodase in people with Gaucher's Disease, run by National Institute of Mental Health (NIMH) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Mar 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00001410, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Mar 2008.

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