Sequential Cadaveric Lung and Bone Marrow Transplant for Immune Deficiency Diseases (BOLT+BMT)

December 8, 2025 updated by: Paul Szabolcs

Bilateral Orthotopic Lung Transplant in Tandem With CD3+ and CD19+ Cell Depleted Bone Marrow Transplant From Partially HLA-Matched Cadaveric Donors

The purpose of this study is to determine whether bilateral orthotopic lung transplantation (BOLT) followed by cadaveric partially-matched hematopoietic stem cell transplantation (HSCT) is safe and effective for patients aged 5-45 years with primary immunodeficiency (PID) and end-stage lung disease.

Study Overview

Detailed Description

This is an original IND for an investigator initiated phase I/II study. The primary purpose of the study is to evaluate the safety and efficacy of performing bilateral orthotopic lung transplantation (BOLT) followed by cadaveric, partially HLA-matched CD3+/CD19+-depleted hematopoietic stem cell transplantation (HSCT) from the same donor for patients with primary immunodeficiency diseases (PID) and end-stage lung disease. For many patients with primary immunodeficiencies, HSCT is a curative, life-saving therapy, resulting in restoration of function in the immune system. Patients with primary immunodeficiencies often develop pulmonary complications as a result of chronic or recurrent infections, making them ineligible for HSCT due to the high risk of mortality and pulmonary complications. Lung transplant prior to HSCT would allow for restoration of pulmonary function prior to HSCT, allowing PID patients to proceed to HSCT, which would be curative for the patient's underlying immunodeficiency. As a secondary aim after successful engraftment with donor bone marrow, there is realistic hope for tolerating planned withdrawal of immunosuppression achieving eventual freedom from all immunosuppressive drugs and attaining a tolerant state.

Study Type

Interventional

Enrollment (Estimated)

16

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15224
        • Children's Hospital of Pittsburgh of UPMC

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

5 years to 45 years (Child, Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria

  1. Subject and/or parent guardian must be able to understand and provide informed consent.
  2. Male or female, 5 through 45 years old, inclusive, at the time of informed consent.
  3. Patients must have evidence of an underlying primary immunodeficiency for which BMT is clinically indicated.

    Examples of such diseases include, but are not limited to:

    • Severe Combined Immunodeficiency
    • Combined immunodeficiency with defects in T-cell-mediated immunity, including Omenn syndrome and DiGeorge Syndrome
    • Severe Chronic Neutropenia
    • Chronic Granulomatous Disease
    • Hyper IgE Syndrome or Job Syndrome
    • CD40 or CD40L deficiency
    • Wiskott-Aldrich Syndrome
    • Mendelian Susceptibility to Mycobacterial Disease [6]
    • GATA2 Associated Immunodeficiency NOTE: A genetic diagnosis is recommended, but not required.
  4. Patients must have evidence of end-stage lung disease and be candidates for bilateral orthotopic lung transplant as determined by the lung transplant team.
  5. GFR ≥ 50 mL/min/1.73 m2.
  6. AST, ALT ≤ 4x upper limit of normal, total bilirubin ≤ 2.5 mg/dL, normal INR.
  7. Cardiac ejection fraction ≥ 40% or shortening fraction ≥26%.
  8. Negative pregnancy test for females >10 years old or who have reached menarche, unless surgically sterilized.
  9. All females of childbearing potential and sexually active males must agree to use a FDA approved method of birth control for up to 24 months after BMT or for as long as they are taking any medication that may harm a pregnancy, an unborn child or may cause birth defect.
  10. Subject and/or parent guardian will also be counseled regarding the potential risks of infertility following BMT and advised to discuss sperm banking or oocyte harvesting.

Exclusion Criteria

Individuals who meet any of these criteria are not eligible for this study:

  1. Inability or unwillingness of a participant to give written informed consent or comply with study protocol.
  2. Patients who have underlying malignant conditions.
  3. Patients who have non-malignant conditions not requiring hematopoietic stem cell transplantation.
  4. HIV positive by serology or PCR, HTLV positive by serology.
  5. Females who are pregnant or who are lactating.
  6. Allergy to DMSO or any other ingredient used in the manufacturing of the stem cell product.
  7. Uncontrolled pulmonary infection, as determined by radiographic findings and/or significant clinical deterioration. NOTE: Pulmonary colonization with multiple organisms is common, and will not be considered an exclusion criterion.
  8. Uncontrolled systemic infection, as determined by the appropriate confirmatory testing e.g. blood cultures, PCR testing, etc.
  9. Recent recipient of any licensed or investigational live attenuated vaccine(s) within 4 weeks of transplant.
  10. Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, which, in the opinion of the investigator, may pose additional risks from participation in the study, may interfere with the participant's ability to comply with study requirements or that may impact the quality or interpretation of the data obtained from the study.

Eligibility Criteria to proceed to Bone Marrow Transplant

  1. GFR ≥ 50 mL/min/1.73 m2.
  2. AST, ALT ≤ 4x upper limit of normal, total bilirubin ≤ 2.5 mg/dL.
  3. Cardiac ejection fraction ≥ 40% or shortening fraction of at least 26%.
  4. HIV negative by serology and PCR.
  5. HTLV serology negative.
  6. FVC and FEV1 ≥40% predicted for age and SpO2 of >90% at rest on room air AND with clearance by the lung transplant team.
  7. Absence of uncontrolled infection as determined by positive blood cultures and radiographic progression of previous sites in particular pulmonary densities during the past 2 weeks prior to chemotherapy.
  8. Absence of clinically significant Acute Cellular Rejection (A2-A4 and/or B2R rejection).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: BOLT+BMT
All patients will receive a double lung transplant followed by a hematopoietic stem cell transplant. The lungs and stem cells are from the same partially HLA-matched cadaveric donor. Prior to transplantation, the marrow will be negatively selected for CD3/CD19 using a CliniMACS® depletion device.
Negative selection for CD3/CD19 will be performed on a CliniMACS® depletion device within 36 hours of collection and given at time no less than 8 weeks post lung transplant.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety: Death
Time Frame: Up to 2 years post stem cell transplant
How many, if any, patients die.
Up to 2 years post stem cell transplant
Safety: Engraftment syndrome
Time Frame: Up to 2 years post stem cell transplant
How many, if any, patients develop engraftment syndrome.
Up to 2 years post stem cell transplant
Safety: Engraftment failure
Time Frame: Up to 2 years post stem cell transplant
How many patients, if any, develop engraftment failure.
Up to 2 years post stem cell transplant
Safety: Rituximab
Time Frame: Up to 2 years post stem cell transplant
The number of grade 4 and 5 events potentially related to rituximab.
Up to 2 years post stem cell transplant
Efficacy: BOS score
Time Frame: 1 year post stem cell transplant
Bronchiolitis Obliterans Syndrome (BOS) score for all patients who receive both lungs and stem cell transplants.
1 year post stem cell transplant
Efficacy: T-cell chimerism
Time Frame: 1 year post stem cell transplant
The number of patients who have ≥ 25% donor T-cell chimerism.
1 year post stem cell transplant
Efficacy: Myeloid chimerism
Time Frame: 1 year post stem cell transplant
The number of patients with myeloid disorders (e.g. CGD) who attain ≥ 10% myeloid chimerism.
1 year post stem cell transplant
Efficacy: B-cell chimerism
Time Frame: 1 year post stem cell transplant
The number of patients with B-cell disorders who attain ≥ 10% B-cell chimerism.
1 year post stem cell transplant

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of meeting BMT eligibility critieria
Time Frame: Up to 2 years post stem cell transplant
The number of patients who are able to proceed to BMT within 6 months following lung transplant.
Up to 2 years post stem cell transplant
Tolerance
Time Frame: Up to 2 years post stem cell transplant
Development of tolerance to both the host and pulmonary graft.
Up to 2 years post stem cell transplant
Long-term complications
Time Frame: Up to 2 years post stem cell transplant
Long-term complications of combined solid organ and BMT.
Up to 2 years post stem cell transplant
Graft failure
Time Frame: Up to 2 years post stem cell transplant
The number of patients who develop graft failure.
Up to 2 years post stem cell transplant
Acute cellular rejection
Time Frame: Up to 2 years post stem cell transplant
The number of patients who develop acute cellular rejection.
Up to 2 years post stem cell transplant
Acute graft-versus-host disease (GVHD)
Time Frame: Up to 2 years post stem cell transplant
The number of patient who develop acute graft-versus-host disease (GVHD).
Up to 2 years post stem cell transplant
Chronic graft-versus-host disease (GVHD)
Time Frame: Up to 2 years post stem cell transplant
The number of patient who develop chronic graft-versus-host disease (GVHD).
Up to 2 years post stem cell transplant
Ability to withdraw immunosuppression
Time Frame: 1 year post stem cell transplant
The number of patients who are able to start immunosuppression withdrawal.
1 year post stem cell transplant
Time to withdraw immunosuppression
Time Frame: Up to 2 years post stem cell transplant
Time from BMT to withdrawal of immunosuppression.
Up to 2 years post stem cell transplant
Pathogen-specific immunity
Time Frame: Up to 2 years post stem cell transplant
Time from BMT to independence from treatment dose antimicrobial drugs.
Up to 2 years post stem cell transplant
Lymphocyte count - for T-cell lymphopenias
Time Frame: 1 year post stem cell transplant
The number of patients who are able to achieve an age adjusted, low limit normal range lymphocyte count.
1 year post stem cell transplant
Chronic lung allograft dysfunction
Time Frame: 1 year post lung transplant
The number of patients who develop chronic lung allograft dysfunction post-lung transplant for all subjects, lung only and lung+stem cell transplant.
1 year post lung transplant
Allograft failure
Time Frame: 1 year post lung transplant
The number of patients who develop allograft failure post-lung transplant for all subjects, lung only and lung+stem cell transplant.
1 year post lung transplant
Rituximab related adverse events
Time Frame: From the time of the first dose of rituximab up to the start of BMT conditioning.
The number of grade 4 or 5 adverse events possibly related to the use of rituximab.
From the time of the first dose of rituximab up to the start of BMT conditioning.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Paul Szabolcs, MD, Division of BMT and Cellular Therapy, Children's Hospital of Pittsburgh of UPMC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 20, 2013

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2027

Study Registration Dates

First Submitted

April 26, 2013

First Submitted That Met QC Criteria

May 8, 2013

First Posted (Estimated)

May 13, 2013

Study Record Updates

Last Update Posted (Estimated)

December 15, 2025

Last Update Submitted That Met QC Criteria

December 8, 2025

Last Verified

December 1, 2025

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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