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Terminated Phase 2 Interventional Results available

Reduced Intensity AlloTransplant For Osteopetrosis

ClinicalTrials.gov ID: NCT00638820

Public ClinicalTrials.gov record NCT00638820. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 6, 2026, 3:09 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Reduced Intensity Allogeneic Transplantation For Severe Osteopetrosis Incorporating A Second Cd34 Selected Graft

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

We believe that hematopoietic stem cell transplantation (HSCT) will help subjects with Osteopetrosis generate functioning osteoclasts, and by so doing assist in the resolution of the abnormal bone architecture, and the anemia and bone marrow failure that is also characteristic of this disease. However, we have found in past studies that approximately 30% of Osteopetrosis patients do not engraft. Therefore, in this study, we plan to use a different combination of pre-transplant drugs to try to make transplants safer for this disease, as well as to provide a second infusion of stem cells in patients with matched related or unrelated donors. The purpose of this research is to find a safer and more effective means of performing stem cell transplantation in patients with Osteopetrosis, using chemotherapy and radiation designed to bring about engraftment and lessen transplant mortality.

Study identification

NCT ID
NCT00638820
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2
Enrollment
3 participants

Conditions and interventions

Eligibility (public fields only)

Age range
Up to 45 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Aug 31, 2007
Primary completion
Apr 30, 2008
Completion
Apr 30, 2008
Last update posted
Dec 27, 2017

2007 – 2008

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of MInnesota, Fairview Minneapolis Minnesota 55455

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00638820, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Dec 27, 2017 · Synced Sep 6, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00638820 live on ClinicalTrials.gov.

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