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pCCLCHIM-p47 (Lentiviral Vector Transduced CD34 Plus Cells) in Patients With p47 Autosomal Recessive Chronic Granulomatous Disease (AR-CGD)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT06253507
Recruitment Status : Not yet recruiting
First Posted : February 12, 2024
Last Update Posted : February 23, 2024
Information provided by (Responsible Party):
National Institutes of Health Clinical Center (CC) ( National Institute of Allergy and Infectious Diseases (NIAID) )

Brief Summary:


Chronic granulomatous disease (CGD) is a genetic disorder. People with CGD are missing a gene that affects their white blood cells. White cells are part of the immune system, and people with GCD are vulnerable to many infections. Researchers want to test a new treatment to replace the missing gene that may be safer than the current treatment for CGD.


To test a new type of gene therapy in people with CGD.


People aged 3 years or older with CGD.


Participants will undergo apheresis: Blood will be collected through a tube attached to a needle inserted in a vein; the blood will run through a machine that separates certain cells (stem cells); the remaining blood will be returned to the body through a second needle. The participant s stem cells will be modified in a laboratory to add the gene they are missing.

Participants will stay in the hospital for about 40 days.

For the first 10 days, they will undergo many exams, including imaging scans and tests of their heart and lung function. They will receive drugs to prepare their bodies for the gene therapy. They will receive a "central line": A hollow tube will be inserted into a vein in the chest, with a port opening above the skin. This port will be used to draw blood and administer drugs without the need for new needle sticks.

For the gene therapy, each participant s own modified stem cells will be put into their body through the port.

Participants will have 8 follow-up visits over 3 years.

Condition or disease Intervention/treatment Phase
p47 Autosomal Recessive Chronic Granulomatous Disease Biological: Cryopreserved Autologous CD34+ cells transduced with pCCLCHIM-p47 Phase 1 Phase 2

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 10 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase I/II, Non-Randomized, Open-Label Study of pCCLCHIM-p47 (Lentiviral Vector Transduced CD34+ Cells) in Patients With p47 Autosomal Recessive Chronic Granulomatous Disease (AR-CGD)
Estimated Study Start Date : February 28, 2024
Estimated Primary Completion Date : March 31, 2027
Estimated Study Completion Date : March 31, 2027

Arm Intervention/treatment
Experimental: Single arm Biological: Cryopreserved Autologous CD34+ cells transduced with pCCLCHIM-p47

Cryopreserved autologous CD34+ cells transduced ex vivo with the pCCLCHIM-p47 vector containing the human p47phox (NCF1) gene in final formulation and container closure system, ready for intended medical use.

The minimum cell dose for infusion is 3 x 10^6 CD34+/kg, maximum cell dose 30 x 10^6 CD34+/kg.

Primary Outcome Measures :
  1. To evaluate the efficacy of pCCLCHIM-p47 transduced autologous CD34+ cells treatment in p47 AR-CGD patients as measured by engraftment of genetically modified cells. [ Time Frame: 6 months to 1 year. ]

Secondary Outcome Measures :
  1. Safety [ Time Frame: Length of study ]
    assessed by recording of the incidence of adverse events for the study as a whole

  2. Long term Engraftment [ Time Frame: 6, 12, 18, 24, and 36 months ]
  3. Event Free Survival [ Time Frame: 3 years ]
  4. Clinical Efficacy and Health Assessment [ Time Frame: 24 and 36 months ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   3 Years to 65 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

In order to be eligible to participate in this study, an individual must meet all of the following criteria:

-Must have confirmed genetic diagnosis of p47 AR-CGD by identification of a mutation in the responsible genes or protein analysis demonstrating lack of P47 expression and supported by laboratory evidence for absent or reduction > 95% of the biochemical

activity of the NADPH-oxidase.

  • Must weigh at least 15 kg.
  • Adult Patient must be willing to sign and date informed consent form.
  • Parent/guardian must be willing to sign and date informed consent form for child and where appropriate, child may sign assent.
  • State willingness to comply with all study procedures and availability for the duration of the study.
  • Male or female must be at least 3 years of age.
  • Do not have an appropriately HLA matched donor (related or unrelated)
  • Must have had at least a history of a prior CGD related infection and/or an ongoing/refractory severe infection requiring hospitalization and/or inflammatory complications requiring hospitalization despite conventional therapy.
  • Patients will be collected as per standard of care mobilization and apheresis procedures as performed at the Clinical Center. Patients will have consented onto the gene therapy study prior to collection; however products collected prior to the study for other protocols may be used as part of the back up.

    • Patient must weigh at least 15 kilograms body weight.
    • Normal female donors of childbearing potential may be entered if using effective contraception and having a negative serum pregnancy test within one week of beginning G-CSF administration.
  • Ability to take oral medication and be willing to adhere to the prophylactic regimen.
  • For females of reproductive potential, must agree to use 2 forms of highly effective contraception throughout study participation (for a minimum of 3 months after having received the genetically modified cells but preferably for the first 2 years.)

    • For females (will be counseled on appropriate combinations for best efficacy):

      • Condoms, male or female, with or without a spermicide.
      • Diaphragm or cervical cap with spermicide.
      • Intrauterine device.
      • Contraceptive pills or patch, Norplant, Depo-Provera, or other FDAapproved contraceptive method.
      • Having a male partner who has previously undergone a vasectomy.
    • For males of reproductive potential: use of condoms or other methods to ensure effective contraception prevention with partner.
  • Agreement to adhere to Lifestyle Considerations throughout study duration.
  • Must provide a durable power of attorney (DPA) for health care decisions to an appropriate adult relative or guardian in accordance to NIH-200 "NIH Advance Directive for Health Care and Medical Research Participation".
  • All patients must be willing to allow storage of blood samples for future studies.


An individual who meets any of the following criteria will be excluded from participation in this study:

  • Patient/Parent/Guardian unable or unwilling to comply with the protocol requirements.
  • Contraindication for leukapheresis (anemia Hb <8g/dL, cardiovascular instability, severe coagulopathy, uncontrolled seizure disorder).
  • Pregnancy or lactation.
  • Tested positive (definitive) for the presence of multiple types (2 or more) of anti-platelet antibodies.
  • Patient will be excluded if they have any of the following within 8 weeks of entering the trial.

    • Hematologic

      • Anemia (hemoglobin < 8 g/dL).
      • Neutropenia (absolute granulocyte count <1,000/mm3)
      • Thrombocytopenia (platelet count < 100,000/mm3).
      • Prothrombin Time (PT) or Partial thromboplastin time (PTT) > 2 X the upper limits of normal (ULN) (Patients with a correctable deficiency controlled on medication will not be excluded).
      • Cytogenetic abnormalities known to be associated with hematopoietic defect on peripheral blood or bone marrow.
    • Infectious

      ---Evidence of infection with HIV-1 and -2, or active Hepatitis B, Hepatitis C, Adenovirus, Parvovirus, Toxoplasmosis, or any other uncontrolled viral infection.

    • Pulmonary

      ---Resting O2 saturation by pulse oximetry < 90% on room air.

    • Cardiac

      • Ejection fraction by Echocardiogram of less than 40%


---Uncorrected congenital cardiac malformation with clinical symptomatology


  • Abnormal EKG which with additional work up (including a Cardiology consult) indicates cardiac pathology incompatible with the use of high dose busulfan.


  • Transaminases >5X upper limit of normal.

    • General

      • Expected survival < 6 months.
      • Major congenital anomaly.
      • Contraindication for administration of conditioning medication.
      • Current or active malignancy or prior hematologic malignancy.
      • Uncontrolled hypertension (systolic greater than 1 SD of the mean expected for age despite adequate medication).
      • Uncontrolled tachycardia with resting heart rate greater than 1 standard deviation for age group despite medications.
      • Neurologic deficits determined to interfere with ability to comply with study interventions.
    • Known serious or anaphylactic allergic reactions to components of the Busulfan or to DMSO.
    • Treatment with another investigational drug or other intervention within 6 months.
    • Unable to undergo apheresis:

      • Patients who are hemodynamically unstable (systolic or diastolic blood pressure fall of 20 mm Hg from the stable patient s baseline measurement) or requiring mechanical respiratory assistance are excluded.
      • History of vasculitis or any illness that precludes apheresis as defined by the Cellular Engineering Department.
    • Administration of gamma-interferon within 30 days before the infusion of transduced, autologous CD34+ cells.
    • Acute infection diagnosed but not treated at time of enrollment. Patients will be delayed for enrollment until infection has resolved or if not resolving with adequate standard medical care, the patient will then be re-eligible for treatment as this would have them meeting the inclusion criteria of a refractory infection. (Patients that develop an infection during the conditioning [after enrollment and having started the busulfan] will proceed with the study.)
    • Any other condition that, in the opinion of the Investigator, may compromise the safety or compliance of the patient or would preclude the patient from successful study completion.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT06253507

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Contact: Elizabeth M Kang, M.D. (301) 402-7567

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United States, Maryland
National Institutes of Health Clinical Center
Bethesda, Maryland, United States, 20892
Contact: NIH Clinical Center Office of Patient Recruitment (OPR)    800-411-1222 ext TTY dial 711   
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
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Principal Investigator: Elizabeth M Kang, M.D. National Institute of Allergy and Infectious Diseases (NIAID)
Additional Information:
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Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID) Identifier: NCT06253507    
Other Study ID Numbers: 10001562
First Posted: February 12, 2024    Key Record Dates
Last Update Posted: February 23, 2024
Last Verified: February 20, 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by National Institutes of Health Clinical Center (CC) ( National Institute of Allergy and Infectious Diseases (NIAID) ):
p47 Phox
Autosomal Recessive
Chronic Granulomatous Disease
Gene Therapy
Lenti Vector
Additional relevant MeSH terms:
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Granulomatous Disease, Chronic
Lymphoproliferative Disorders
Lymphatic Diseases
Pathologic Processes
Phagocyte Bactericidal Dysfunction
Leukocyte Disorders
Hematologic Diseases
Genetic Diseases, X-Linked
Genetic Diseases, Inborn
Immunologic Deficiency Syndromes
Immune System Diseases
Chronic Disease
Disease Attributes