Gaucher's DiseasePhase 1NCT00004294
Phase I Study of Retrovirally Mediated Transfer of the Human Glucocerebrosidase Gene Into Peripheral Blood Stem Cells for Autologous Transplantation in Patients With Type I Gaucher Disease
A Phase 1 study testing human glucocerebrosidase gene into autologous peripheral blood stem cells in people with Gaucher's Disease, run by National Center for Research Resources (NCRR) at 1 site in United States.
Trial summary
OBJECTIVES: I. Transfer the human glucocerebrosidase (GC) gene into peripheral blood stem cells (PBSC) obtained from patients with type I Gaucher disease using a retroviral vector. II. Transplant the autologous transduced PBSC in these patients. III. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Gaucher's Disease
- What is being tested?
- human glucocerebrosidase gene into autologous peripheral blood stem cells
- How many people
- 15 participants
- Where
- 1 siteUnited States
- Study dates
- Nov 1999to not given
- 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 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
PROTOCOL ENTRY CRITERIA:
--Disease Characteristics-- Enzyme proven type I Gaucher disease Glucocerebrosidase (GC) activity less than 30% of normal GC mutation identified Significant signs and symptoms of disease prior to therapy initiation At least 1 of the following after 12 months of therapy: Liver at least 2 times normal size Spleen at least 5 times normal size Platelet count greater than 150,000/mm3 Clinical bone disease with pain, fractures, or infarctions Multiple sites of marrow involvement Angiotensin-converting enzyme at least 1.5 times normal No GC antibody At least 3 of the following responses to therapy: Hemoglobin increase of 2 g/dL Platelet count increase of 50% Spleen or liver size decrease at least 25% Improvement in MRI or x-ray of the bones Nontartrate inhibitable acid phosphatase decrease of 50% Angiotensin-converting enzyme decrease of 50% OR Previously untreated and immediate enzyme therapy would not be life saving Meets at least 2 of the following criteria: Spleen at least 5 times normal size or liver at least 2 times normal size by physical exam and MRI Hemoglobin less than 11 g/dL Platelet count less than 90,000/mm3 Disabling bone pain with degenerative changes on x-ray Multiple sites of bone marrow infiltration and evidence of bony changes Pulmonary compromise with clubbing and PaO2 less than 70 mm Hg Biopsy proven cirrhosis and elevated hepatic parenchymal enzymes Bleeding esophageal varices --Prior/Concurrent Therapy-- At least 3 months since any prior investigational therapy Concurrent enzyme replacement therapy may be tapered on study --Patient Characteristics-- HIV negative No malignant disease No known sensitivity to egg or murine products Not pregnant or nursing Fertile patients must use effective contraception
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Pittsburgh
Pittsburgh, Pennsylvania, 15260
About this study
OBJECTIVES: I. Transfer the human glucocerebrosidase (GC) gene into peripheral blood stem cells (PBSC) obtained from patients with type I Gaucher disease using a retroviral vector.
II. Transplant the autologous transduced PBSC in these patients. III. Measure the carriage and expression of the transferred gene and its duration in peripheral blood leukocytes.
IV. Assess the clinical effects of transplanting genetically corrected PBSC.
Read the detailed description
PROTOCOL OUTLINE: Patients undergo autologous transplantation using peripheral blood stems cells (PBSC) stimulated with filgrastim (G-CSF) and transduced with a retroviral vector containing the human glucocerebrosidase gene (R-GC). Patients may receive up to 4 transplants if a deficient glucocerebrosidase level is found in peripheral leukocytes 1 month following transplantation.
The G-CSF-stimulated PBSC are enriched for CD34-positive stem cells and transduced with the R-GC vector. Stem cells with normal gene activity are selected for transplantation.
Patients are followed every month for 6 months, every 6 months for 18 months, and then annually thereafter.
- Conditions
- Gaucher's Disease
- Being tested
- human glucocerebrosidase gene into autologous peripheral blood stem cells
- Keywords
- Gaucher's disease, inborn errors of metabolism, rare disease, sphingolipidoses
- Medical subject headings
- Gaucher Disease, Metabolism, Inborn Errors, Rare Diseases, Sphingolipidoses
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
human glucocerebrosidase gene into autologous peripheral blood stem cellsGenetic
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Oct 1999 (estimated)
- Study startNov 1999
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Gaucher's DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- 15 participants
Sponsor and investigators
- Lead sponsor
- National Center for Research Resources (NCRR)
- Sponsor type
- US National Institutes of Health
- Collaborators
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), University of Pittsburgh
- Investigators
- John Barranger, Study chair, University of Pittsburgh
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00004294
- Sponsor's protocol ID
- 199/11727
- Other IDs
- UPITTS-GAUCHER
- Status last verified
- Dec 2003
- First submitted
- 18 Oct 1999
- Last updated
- 24 Jun 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase I Study of Retrovirally Mediated Transfer of the Human Glucocerebrosidase Gene Into Peripheral Blood Stem Cells for Autologous Transplantation in Patients With Type I Gaucher Disease
- ClinicalTrials.gov ID
- NCT00004294
- Acronym / sponsor ID
- 199/11727
- Conditions
- Gaucher's Disease
- Keywords
- Gaucher's disease, inborn errors of metabolism, rare disease, sphingolipidoses
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 15 participants
- Lead sponsor
- National Center for Research Resources (NCRR)US National Institutes of Health
- Collaborators
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), University of Pittsburgh
- Study start
- Nov 1999
- First posted
- 19 Oct 1999 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
OBJECTIVES: I. Transfer the human glucocerebrosidase (GC) gene into peripheral blood stem cells (PBSC) obtained from patients with type I Gaucher disease using a retroviral vector.
II. Transplant the autologous transduced PBSC in these patients. III. Measure the carriage and expression of the transferred gene and its duration in peripheral blood leukocytes.
IV. Assess the clinical effects of transplanting genetically corrected PBSC.
Detailed description
PROTOCOL OUTLINE: Patients undergo autologous transplantation using peripheral blood stems cells (PBSC) stimulated with filgrastim (G-CSF) and transduced with a retroviral vector containing the human glucocerebrosidase gene (R-GC). Patients may receive up to 4 transplants if a deficient glucocerebrosidase level is found in peripheral leukocytes 1 month following transplantation.
The G-CSF-stimulated PBSC are enriched for CD34-positive stem cells and transduced with the R-GC vector. Stem cells with normal gene activity are selected for transplantation.
Patients are followed every month for 6 months, every 6 months for 18 months, and then annually thereafter.
Study design
- Primary purpose
- Treatment
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| human glucocerebrosidase gene into autologous peripheral blood stem cells | Genetic | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2005.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
John Barranger study chair
University of Pittsburgh
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing human glucocerebrosidase gene into autologous peripheral blood stem cells in people with Gaucher's Disease, run by National Center for Research Resources (NCRR) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 Jun 2005. 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?
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 24 Jun 2005.