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NCT03330795: BOLT-BMT

Bilateral Orthotopic Lung Transplant - Bone Marrow Transplant

Completed Phase 1, PHASE2 Results posted Last updated 22 July 2025
What this trial tests

Phase 1, PHASE2 trial testing CD3/CD19 neg allogeneic BMT in Primary Immunodeficiency in 5 participants. Completed in 1 March 2024.

Timeline
1 December 2017
Primary endpoint
1 March 2024
1 March 2024

Quick facts

Lead sponsorNational Institute of Allergy and Infectious Diseases (NIAID)
PhasePhase 1, PHASE2
StatusCompleted
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment5
Start date1 December 2017
Primary completion1 March 2024
Estimated completion1 March 2024
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Who can join

Adults 10 to 45, any sex, with Primary Immunodeficiency or PID. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Safety: Death Primary · Average of approximately 31 months for those who received an initial transplant

How many, if any, participants die during study participation.

GroupValue95% CI
BOLT-BMT Protocol4
Safety: Engraftment Syndrome Primary · Average of ~7.5 months of time post BMT for those receiving both lung and BMT transplants.

How many, if any, participants develop engraftment syndrome.

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT0
Engraftment Failure Primary · Average of ~7.5 months of time post BMT for those receiving both lung and BMT transplants.
GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT1
Grade 4 or 5 Events Potentially Attributable to Rituximab Primary · Average of ~25 months.
GroupValue95% CI
BOLT-BMT Protocol4
BOS at 1 Year Post BOLT Primary · throughout the first year post BOLT

Diagnosis of BOS (Bronchiolitis Obliterans Syndrome) at any time up to 1 year post BOLT. BOS is one of the undesirable complications of lung transplantation.

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT0
Efficacy: Count of Participants With Requirement for Supplemental Oxygen and/or Ventilatory Support Primary · at 1 Year Post Lung Transplant (BOLT)

The number of participant(s) who need either supplemental oxygen and/or ventilator support (noninvasive/invasive) will be assessed using the Bronchiolitis Obliterans Syndrome (BOS) Classification Score for pulmonary function (e.g., the Forced Expiratory Volume in 1 Second (FEV1). FEV1 is air volume exhaled in 1 second during spirometry, a lung function test. (Continuing dependence on supplemental oxygen or ventilatory support is an undesirable outcome of lung transplantation).

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT0
Efficacy: Count of Participants With T-cell Chimerism Primary · 1 Year Post Bone Marrow Transplant (BMT)

The number of participants who have ≥ 25% donor T-cell chimerism.

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT1
Efficacy: Count of Participants With Myeloid Chimerism Primary · 1 Year Post Bone Marrow Transplant (BMT)

The number of participants with myeloid disorders (e.g. Chronic Granulomatous Disease \[CGD\]) who attain ≥ 10% myeloid chimerism.

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT1
Efficacy: Count of Participants B-cell Chimerism Primary · 1 Year Post Bone Marrow Transplant (BMT)

The number of participants with B-cell disorders who attain ≥ 10% B-cell chimerism.

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT0
Count of Participants Able to Proceed to BMT Secondary · 6 Months Post Lung Transplant (BOLT)

The number of participants for which it is feasible to proceed to BMT within 6 months following lung transplant.

GroupValue95% CI
Lung Transplant1
Count of Participants Who Achieve Tolerance Secondary · Average of ~7.5 months of time post BMT for those receiving both lung and BMT transplants.

The number of participants who develop tolerance to both the host and pulmonary graft. Definition of tolerance: A participant's successful withdrawal from systemic immunosuppression for 6 weeks with no increase cGVHD score and stable or improving PFTs.

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT0
Long Term Complications of Combined Solid Organ and Bone Marrow Transplant Secondary · Average of ~7.5 months of time post BMT for those receiving both lung and BMT transplants.

Summary of long-term complications of combined solid organ and bone marrow transplant (BMT).

GroupValue95% CI
CD3/CD19 Neg Allogeneic BMT0

Adverse events — posted to ClinicalTrials.gov

Time frame: Average of approximately 25 months. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

BOLT-BMT Protocol
Serious: 5/5 (100%)
Deaths: 4/5

Serious adverse events (32 terms)

ReactionSystemBOLT-BMT Protocol
Acute kidney injuryRenal and urinary disorders
Gastrointestinal haemorrhageGastrointestinal disorders
PneumoniaRespiratory, thoracic and mediastinal disorders
Acute graft versus host disease in intestineImmune system disorders
Bone marrow disorderBlood and lymphatic system disorders
Bronchial haemorrhageRespiratory, thoracic and mediastinal disorders
BronchitisRespiratory, thoracic and mediastinal disorders
ColitisGastrointestinal disorders
DehydrationMetabolism and nutrition disorders
DiarrhoeaGastrointestinal disorders
Feeling abnormalGeneral disorders
Fluid balance positiveInvestigations
Fungal sepsisInfections and infestations
HyperkalaemiaMetabolism and nutrition disorders
InfectionInfections and infestations
Jugular vein thrombosisVascular disorders
Lower urinary tract symptomsRenal and urinary disorders
MeningitisNervous system disorders
Myocardial infarctionCardiac disorders
Neutrophil count decreasedInvestigations
Otitis externaEar and labyrinth disorders
Platelet count decreasedInvestigations
Pulmonary massRespiratory, thoracic and mediastinal disorders
Pulmonary oedemaRespiratory, thoracic and mediastinal disorders
Respiratory distressRespiratory, thoracic and mediastinal disorders
Other adverse events (279 terms — click to expand)

ReactionSystemBOLT-BMT Protocol
DiarrhoeaGastrointestinal disorders
HyperglycaemiaMetabolism and nutrition disorders
PneumothoraxRespiratory, thoracic and mediastinal disorders
AnaemiaBlood and lymphatic system disorders
HyperkalaemiaMetabolism and nutrition disorders
HypertensionVascular disorders
HypocalcaemiaMetabolism and nutrition disorders
HypotensionVascular disorders
LeukocytosisBlood and lymphatic system disorders
Lymphocyte count decreasedInvestigations
NauseaGastrointestinal disorders
Neutrophil count increasedInvestigations
Non-cardiac chest painGeneral disorders
Oedema peripheralGeneral disorders
VomitingGastrointestinal disorders
White blood cell count decreasedInvestigations
Abdominal painGastrointestinal disorders
AnxietyPsychiatric disorders
AtelectasisRespiratory, thoracic and mediastinal disorders
Back painMusculoskeletal and connective tissue disorders
Blood potassium increasedInvestigations
Confusional statePsychiatric disorders
ConstipationGastrointestinal disorders
CoughRespiratory, thoracic and mediastinal disorders
DyspnoeaRespiratory, thoracic and mediastinal disorders
Fungal infectionInfections and infestations
HaematuriaRenal and urinary disorders
HeadacheNervous system disorders
HyperchloraemiaMetabolism and nutrition disorders
HypoalbuminaemiaMetabolism and nutrition disorders
HypomagnesaemiaMetabolism and nutrition disorders
Neutrophil count decreasedInvestigations
Platelet count decreasedInvestigations
Pulmonary oedemaRespiratory, thoracic and mediastinal disorders
Respiratory disorderRespiratory, thoracic and mediastinal disorders
TremorNervous system disorders
Abdominal distensionGastrointestinal disorders
AcidosisMetabolism and nutrition disorders
Acute kidney injuryRenal and urinary disorders
Alanine aminotransferase increasedInvestigations

Most-reported serious reactions: Acute kidney injury, Gastrointestinal haemorrhage, Pneumonia, Acute graft versus host disease in intestine, Bone marrow disorder, Bronchial haemorrhage, Bronchitis, Colitis.

Data from ClinicalTrials.gov NCT03330795 adverse events section.

Sponsor's own description

The purpose of this study is to determine whether bilateral orthotopic lung transplantation (BOLT) followed by cadaveric partially-matched CD3+/CD19+ depleted bone marrow transplant (BMT) is safe and effective for individuals aged 10 through 45 years with the diagnosis of primary immunodeficiency (PID) and end-stage lung disease. The enrollment goal: 8 participants who receive both BOLT and BMT.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

Other recruiting trials for Primary Immunodeficiency

Currently open trials in the same condition.

Other National Institute of Allergy and Infectious Diseases (NIAID) trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03330795.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing