An Efficacy and Safety Study of Autologous Cluster of Differentiation 34 (CD34+) Hematopoietic Progenitor Cells Transduced With Placebo or an Anti- Human Immunodeficiency Virus Type 1 (HIV-1) Ribozyme (OZ1) in Participants With HIV-1 Infection
A Randomized Phase II, Double-Blind, Controlled Trial to Evaluate the Safety and Efficacy of Autologous CD34+ Hematopoietic Progenitor Cells Transduced With Placebo or an Anti-HIV-1 Ribozyme (OZ1) in Patients With HIV-1 Infection
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
-
-
-
Darlinghurst, Australia
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- An Human Immunodeficiency Virus 1 (HIV-1) infection for at least 6 months documented by positive HIV serology including confirmation by Western Blot
- Receiving either the first or second regimen of antiretroviral therapy (ART) defined as 3 or more antiretroviral drugs in combination
- A Viral load less than 400 copies per milliliter (copies/ml), as measured by Roche Amplicor HIV-1 Monitor assay, on 2 consecutive occasions, at least 7 days apart and within 45 days prior to granulocyte colony-stimulating factor (G-CSF) administration and the second measurement has to be within 14 days prior to G-CSF
- Cluster of Differentiation 4 (CD4+) cell count must be greater that 300 cells per cubic millimeter (cells/mm^3)
- Women and men (or their partners) had to agree to use a medically accepted form of contraception and safe sexual practices
Exclusion Criteria:
- Any previous or current Acquired Immunodeficiency Syndrome (AIDS) defining illness by the Center for Disease Control (CDC) case definition, including AIDS-related dementia (mental decline), with the exception of Kaposi's sarcoma (purple or brown cancerous pimples on the skin, often associated with AIDS)
- Clinically significant clinical laboratory results
- Participants with veins unsuitable for study related procedures
- Current ART that included antiretroviral agents which exhibited antagonism when used together (example, zidovudine and stavudine ), or current or previous ART that included hydroxyurea
- Current pregnancy or breastfeeding
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: 001
OZ1 Single intravenous infusion of 2-20 x 10 to the power of 7 OZ1 transduced autologous CD34+ cells per kilogram of body weight
|
Single intravenous infusion of OZ1.
Autologous CD34+ cells.
|
|
Placebo Comparator: 002
Placebo Single intravenous infusion of placebo transduced autologous CD34+ cells per kilogram of body weight
|
Autologous CD34+ cells.
Single intravenous infusion of placebo.
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
Difference in viral load between the placebo and OZ1 groups.
Time Frame: Week 47
|
Week 47
|
|
Difference in viral load between the placebo and OZ1 groups.
Time Frame: Week 48
|
Week 48
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
CD4+ cell count
Time Frame: Weeks 41 - 48
|
Weeks 41 - 48
|
|
HIV proviral DNA
Time Frame: Weeks 41 - 48
|
Weeks 41 - 48
|
|
Thymic function
Time Frame: Weeks 41 - 48
|
Weeks 41 - 48
|
|
Time to resumption of antiretroviral therapy
Time Frame: Weeks 41 - 48
|
Weeks 41 - 48
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- CR010783
- OZ1-HV1-201
- OTH/OZ1-INT-1
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