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Immunoglobulin Replacement Therapy (IgRT) Versus Antibiotic Prophylaxis (PA) in Patients Treated by CD19-targeted Chimeric Antigen Receptor (CAR)T Cells for a B Cell Acute Lymphoblastic Leukemia or a B Cell Lymphoma (PREV-CART)

4 augusti 2026 uppdaterad av: Assistance Publique - Hôpitaux de Paris

A Multicentric Phase III Randomized Clinical Trial Open-label, Comparing Immunoglobulin Replacement Therapy (IgRT) and Antibiotic Prophylaxis (AP) in Patients Treated by CD19-targeted Chimeric Antigen Receptor (CAR)T Cells for a B Cell Acute Lymphoblastic Leukemia or a B Cell Lymphoma

B cell (CD19) targeted chimeric antigen receptor modified T Cells (CAR-T) has transformed treatment of relapsed/refractory B-cell acute lymphoblastic leukemia (B-ALL) or B-cell lymphoma (BCL).

Because patients receiving CAR-T often present uncontrolled disease and have undergone several lines of treatment, they may be deeply immuno-depressed and prone to infections. Hypogammaglobulinemia were reported in 74% of patients preCAR-T cells infusion (Hill JA, et al. Blood Rev. 2019 Nov). CART cells also results in depletion of normal CD19+ B cells and hypogammaglobulinemia as an on-target, off tumor toxicity.

Because CAR-T cells can persist for years, patients are exposed to infectious complications secondary to long-term Bcell aplasia and severe hypogammaglobulinemia (<4g/l). Data from patients who received rituximab (CD20-specific monoclonal antibody) show that patients with severe hypogammaglobulinemia experienced recurrent bronchitis, sinusitis, pneumonia, and rarely, enteroviral meningoencephalitis. In patients receiving CAR T-cells, infection density is 0.55-0.67 infections/100 days3,5 at risk after the first month with a majority of respiratory and ENT (earsnose-throat) infections. To prevent infections, anti-bacterial prophylaxis (AP) based on local guidelines is often used in patients treated by CAR-T cells, with the risk of subsequent resistance. Otherwise, intravenous immunoglobulin replacement therapy (IgRT) is authorized by the French authorities for patients with secondary antibody deficiencies who developed severe or recurrent infections after appropriate antimicrobial therapy, if IgG levels <4g/l. However, although IgRT as primary prophylaxis (PP) have no approval, they are used as PP after CAR T-cells by many centers, with no data supporting such a strategy. The benefit of IgRT over AP as a primary prophylaxis in the setting of CD19 CAR-T cells therapy should be demonstrated given its burden for patients and care, as well as its cost and the risk of Ig shortage. Therefore, this multi-centric prospective randomized openlabel study aims to assess the benefits of IgRT versus AP as PP in patients with secondary antibody deficiencies.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Beräknad)

228

Fas

  • Fas 3

Kontakter och platser

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Studiekontakt

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Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Barn
  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  1. Age 16-80 years at inclusion
  2. B-cell acute lymphoblastic leukemia or a B-cell lymphoma
  3. With gamma globulins <4g/L at the time of screening
  4. Receiving CD19-targeted autologous CAR-T cells (with AMM in their indication)
  5. Patients with childbearing potential* should have reliable contraception for the all duration of the study and another 12 months after CAR-T infusion.
  6. Contraceptive measures for concerned patients
  7. Informed consent signed by patient or legal representatives

Exclusion Criteria:

  1. Any medical history of intolerance to intravenous immunoglobulin
  2. With renal failure calculated glomerular filtrate rate <30 mL / min;
  3. With hepatic failure or hepatitis or bilirubin> 3 times the upper limit of normal, Serum ALT/AST >=5N
  4. With existing serious acute infection
  5. Contraindication to immunoglobulin or to prophylactic antibiotherapy administered in this clinical trial
  6. No health insurance coverage
  7. Females who are pregnant or breastfeeding
  8. Participation in another interventional study or being

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Immunoglobulin Replacement therapy
Läkemedel: Immunoglobulin
IgRT 0.4g/Kg IV every 4 weeks for 12 months
Aktiv komparator: Antibiotic prophylaxis
Läkemedel: antibiotic prophylaxis
PA following each center's guidelines, for 12 months

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Occurrence of recurrent infections
Tidsram: At 12 months
Defined by at least 2 episodes requiring a curative systemic antibiotic treatment
At 12 months
Occurrence of a severe infection
Tidsram: At 12 months
Defined by the need of hospitalization
At 12 months

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Cumulative hazard of severe infections
Tidsram: Up to 12 months
requiring hospitalization
Up to 12 months
Infection-free survival rate
Tidsram: Up to 12 months
Up to 12 months
Occurrence of COVID19 infection
Tidsram: Up to 12 months
Up to 12 months
Cumulative incidence of readmissions due to infectious episode after hospital discharge following the infusion of CART cells
Tidsram: Up to 12 months
Up to 12 months
Incidence of adverse events due to IgRT and/or PA
Tidsram: Up to 12 months
Up to 12 months
Dosage of immune markers
Tidsram: Up to 12 months
IgA, IgG, IgM, CD19/CD4/CD8 lymphocytes counts, at lymphodepletion
Up to 12 months
Dosage of immune markers
Tidsram: At 1 month
IgA, IgG, IgM, CD19/CD4/CD8 lymphocytes counts
At 1 month
Dosage of immune markers
Tidsram: At 3 months
IgA, IgG, IgM, CD19/CD4/CD8 lymphocytes counts
At 3 months
Dosage of immune markers
Tidsram: At 6 months
IgA, IgG, IgM, CD19/CD4/CD8 lymphocytes counts
At 6 months
Dosage of immune markers
Tidsram: At 9 months
IgA, IgG, IgM, CD19/CD4/CD8 lymphocytes counts
At 9 months
Dosage of immune markers
Tidsram: At 12 months
IgA, IgG, IgM, CD19/CD4/CD8 lymphocytes counts
At 12 months
Quality of life assessment
Tidsram: At 3 months
EQ5D5L : standardized measure of health-related quality of life assessing five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The EQ-5D-5L index score typically ranges from values below 0 (health states considered worse than death) to 1.0 (full health), depending on the country-specific value set. Higher scores indicate better health-related quality of life.
At 3 months
Quality of life assessment
Tidsram: At 6 months
EQ5D5L : standardized measure of health-related quality of life assessing five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The EQ-5D-5L index score typically ranges from values below 0 (health states considered worse than death) to 1.0 (full health), depending on the country-specific value set. Higher scores indicate better health-related quality of life.
At 6 months
Quality of life assessment
Tidsram: At 9 months
EQ5D5L : standardized measure of health-related quality of life assessing five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The EQ-5D-5L index score typically ranges from values below 0 (health states considered worse than death) to 1.0 (full health), depending on the country-specific value set. Higher scores indicate better health-related quality of life.
At 9 months
Quality of life assessment
Tidsram: At 12 months
EQ5D5L : standardized measure of health-related quality of life assessing five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The EQ-5D-5L index score typically ranges from values below 0 (health states considered worse than death) to 1.0 (full health), depending on the country-specific value set. Higher scores indicate better health-related quality of life.
At 12 months
Quality of life assessment
Tidsram: At 3 months
EORTC QLQ-C30 : cancer-specific questionnaire designed to assess health-related quality of life in patients with cancer. Scores are linearly transformed to a 0-100 scale. For the Global Health Status/Quality of Life scale and the functional scales, higher scores indicate better quality of life and functioning. For symptom scales, higher scores indicate greater symptom burden and poorer health status.
At 3 months
Quality of life assessment
Tidsram: At 6 months
EORTC QLQ-C30 : cancer-specific questionnaire designed to assess health-related quality of life in patients with cancer. Scores are linearly transformed to a 0-100 scale. For the Global Health Status/Quality of Life scale and the functional scales, higher scores indicate better quality of life and functioning. For symptom scales, higher scores indicate greater symptom burden and poorer health status.
At 6 months
Quality of life assessment
Tidsram: At 9 months
EORTC QLQ-C30 : cancer-specific questionnaire designed to assess health-related quality of life in patients with cancer. Scores are linearly transformed to a 0-100 scale. For the Global Health Status/Quality of Life scale and the functional scales, higher scores indicate better quality of life and functioning. For symptom scales, higher scores indicate greater symptom burden and poorer health status.
At 9 months
Quality of life assessment
Tidsram: At 12 months
EORTC QLQ-C30 : cancer-specific questionnaire designed to assess health-related quality of life in patients with cancer. Scores are linearly transformed to a 0-100 scale. For the Global Health Status/Quality of Life scale and the functional scales, higher scores indicate better quality of life and functioning. For symptom scales, higher scores indicate greater symptom burden and poorer health status.
At 12 months
Incremental Cost-Effectiveness Ratio (ICER)
Tidsram: Up to 12 months
Up to 12 months

Samarbetspartners och utredare

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Sponsor

Assistance Publique - Hôpitaux de Paris

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 september 2026

Primärt slutförande (Beräknad)

1 september 2029

Avslutad studie (Beräknad)

1 september 2029

Studieregistreringsdatum

Först inskickad

3 juli 2026

Först inskickad som uppfyllde QC-kriterierna

4 augusti 2026

Första postat (Faktisk)

10 augusti 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

10 augusti 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

4 augusti 2026

Senast verifierad

1 augusti 2026

Mer information

Termer relaterade till denna studie

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • APHP241013

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