Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 23, 2026, 8:21 AM EDT

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Showing 1–6 of 6 matching trials from the live ClinicalTrials.gov search.
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Conditions
Wiskott-Aldrich Syndrome
Interventions
Retrovirus-mediated gene transfer
Biological
Lead sponsor
David Williams
Other
Eligibility
3 Months to 35 Years · Male only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Active, not recruiting Phase 1 Interventional

Gene Transfer for Sickle Cell Disease

NCT03282656
Conditions
Sickle Cell Disease
Interventions
single infusion of autologous bone marrow derived CD34+ HSC cells transduced with the lentiviral vector containing a short-hairpin RNA targeting BCL11a
Biological
Lead sponsor
David Williams
Other
Eligibility
3 Years to 40 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
2
States / cities
Los Angeles, California • Boston, Massachusetts
Conditions
Sickle Cell Disease
Interventions
Autologous CD34+ HSC cells transduced with the lentiviral vector containing a shRNA targeting BCL11a
Biological
Lead sponsor
David Williams
Other
Eligibility
13 Years to 55 Years
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Sickle Cell Disease
Interventions
Autologous CD34+ HSC cells transduced with the lentiviral vector containing a shRNA targeting BCL11a
Biological
Lead sponsor
David Williams
Other
Eligibility
13 Years to 40 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
9
States / cities
Los Angeles, California • Oakland, California • Sacramento, California + 4 more
Conditions
Severe Combined Immunodeficiency, X Linked, Gene Therapy
Interventions
autologous CD34+ cell transduced with G2SCID vector
Biological
Lead sponsor
David Williams
Other
Eligibility
0 Years to 5 Years · Male only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
4
States / cities
Los Angeles, California • Atlanta, Georgia • Boston, Massachusetts + 1 more
Conditions
Severe Combined Immunodeficiency
Interventions
Gene transfer
Biological
Lead sponsor
David Williams
Other
Eligibility
Male only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2023
U.S. locations
3
States / cities
Los Angeles, California • Boston, Massachusetts • Cincinnati, Ohio