Immunotherapy for High Risk/Relapsed CD19+ Acute Lymphoblastic Leukaemia, B-cell Non-Hodgkin's Lymphoma (B-NHL) and Chronic Lymphocytic Leukaemia (CLL)/ Small Lymphocytic Lymphoma (SLL) Using CAR T-cells to Target CD19

NCT ID: NCT02935257

Last Updated: 2025-09-23

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: PHASE1
• Total Enrollment: 72 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2017-09-29
• Study Completion Date: 2033-12-31

Brief Summary

This is a multi-centre, non-randomised, open label Phase I clinical trial of an Advanced Therapy Investigational Medicinal Product (ATIMP) in adults (age ≥16) with (1) high risk, relapsed/refractory (r/r) CD19+ B-ALL; (2) r/r DLBCL; (3) r/r CLL/SLL and (4) r/r FL and (5) r/r MCL. The ATIMP for this study is cryopreserved autologous patient-derived T-cells transduced with the lentiviral pCCL.PGK.alpha.CD19CAT-41BBzeta vector, CD19CAT-41BBζ CAR T-cells (referred to subsequently as CD19CAR T-cells) which is classified as a gene therapy medicinal product. Patients will undergo an unstimulated leucapheresis for the generation of the ATIMP. The ATIMP will take approximately 15 days to generate. During this period, patients may receive "holding" chemotherapy as per institutional practice to maintain disease control. The study will evaluate ATIMP safety and efficacy and the duration of disease response in adults with high risk / relapsed CD19+ B-ALL, DLBCL, B-CLL/SLL, FL and MCL.

Recruitment into the ALL cohort has been completed and no further patients with ALL are being treated on the study.

Patients receive pre-conditioning lymphodepleting chemotherapy with cyclophosphamide 60mg/kg on Day -6 and fludarabine 30mg/m2 administered over 3 days (Day -5 to Day -3). Patients with DLBCL only will also receive a single dose of pembrolizumab 200 mg at day -1.

Patients recruited to ALLCAR19 are treated with different dosing schedules, depending on their underlying disease. Patients with B-ALL and B-CLL/SLL are considered at high risk of CLL/CRES so receive split dosing, with the second dose only given in the absence of severe toxicity 9 days later. CAR T-cell dosing in ALLCAR19 is flat i.e. not dependent on patient body weight or surface area.

• Regimen A1: Patients with B-ALL with a baseline marrow blast% of ≤20% receive a split dose with a first dose of 100 x 10^6 CD19 CAR T-cells and a possible second dose of 310 x 106 CAR T-cells
• Regimen A2: Patients with B-ALL with a baseline marrow blast% of >20% receive a split dose with a first dose of 10 x 10^6 CD19CAR T-cells and a possible second dose of 400 x 10^6 CAR T-cells
• Regimen B: Patients with DLBCL receive a single dose of 200 x 10^6 CAR T-cells
• Regimen C: Patients with CLL/SLL will receive a split dose with a first dose of 30 x 106 CD19 CAR T-cells and a possible second dose of 200 x 10^6 CD19 CAR T-cells.
• Regimen D: Patients with FL and MCL receive a single dose of 200 x 10^6 CAR T-cells

The study evaluates ATIMP feasibility and safety of generating CD19CAR T-cells and for B-ALL patients only, efficacy and the duration of disease response to CD19CAR T-cells.

After completing the interventional phase of the study all patients, irrespective of whether they progressed or responded to treatment, enter long term follow up until 10 years post-CD19CAR T-cell infusion.

Detailed Description

This is a multi-centre, non-randomised, open label Phase I clinical trial of an Advanced Therapy Investigational Medicinal Product (ATIMP) in adults (age ≥16) with (1) high risk, relapsed/refractory (r/r) CD19+ B-ALL; (2) r/r DLBCL; (3) r/r CLL/SLL, (4) r/r FL and (5) r/r MCL. The ATIMP for this study is cryopreserved autologous patient-derived T-cells transduced with the lentiviral pCCL.PGK.alpha.CD19CAT-41BBζ vector, CD19CAT-41BBζ CAR T-cells (referred to sub-sequently as CD19CAR T-cells) which is classified as a gene therapy medicinal product. Patients will undergo an unstimulated leucapheresis for the generation of the ATIMP. The ATIMP take approximately 15 days to generate. During this period, patients may receive "holding" chemotherapy as per institutional practice to maintain disease control. The study evaluates ATIMP safety and efficacy and the duration of disease response in adults with high risk / relapsed CD19+ B-ALL, DLBCL, B-CLL/SLL, FL and MCL.

The ALL and FL cohorts are now completed and no further patients with ALL or FL are treated on the study.

Patients receive lymphodepleting chemotherapy with cyclophosphamide 60mg/kg on Day -6 and fludarabine 30mg/m2 administered over 3 days (Day -5 to Day -3). Patients with DLBCL only also receive a single dose of pembrolizumab 200 mg at day -1.

Patients recruited to ALLCAR19 are treated with different dosing schedules, depending on their underlying disease. Patients with B-ALL and B-CLL/SLL are considered at high risk of CLL/CRES so receive split dosing, with the second dose only given in the absence of severe toxicity 9 days later. CAR T-cell dosing in ALLCAR19 is flat i.e. not dependent on patient body weight or surface area.

• Regimen A1: Patients with B-ALL with a baseline marrow blast% of ≤20% receive a split dose with a first dose of 100 x 10^6 CD19 CAR T-cells and a possible second dose of 310 x 10^6 CAR T-cells
• Regimen A2: Patients with B-ALL with a baseline marrow blast% of >20% receive a split dose with a first dose of 10 x 10^6 CD19CAR T-cells and a possible second dose of 400 x 106 CAR T-cells
• Regimen B: Patients with DLBCL receive a single dose of 200 x 10^6 CAR T-cells
• Regimen C: Patients with CLL/SLL will receive a split dose with a first dose of 30 x 10^6 CD19 CAR T-cells and a possible second dose of 200 x 106 CD19 CAR T-cells.
• Regimen D: Patients with indolent B-NHL receive a single dose of 200 x 10^6 CAR T-cells

The study evaluates ATIMP feasibility and safety of generating CD19CAR T-cells and for B-ALL patients only, efficacy and the duration of disease response to CD19CAR T-cells.

After completing the interventional phase of the study all patients, irrespective of whether they progressed or responded to treatment, will enter long term follow up until 10 years post-CD19CAR T-cell infusion.

Conditions

Leukemia, Lymphoblastic, Acute, Lymphoma

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

CD19CAT-41BBZ CAR T-cells

Treatment with the ATIMP: CD19CAT-41BBZ CAR T-cells

Group Type: EXPERIMENTAL

CD19CAT-41BBZ CAR T-cells

Intervention Type: BIOLOGICAL

Infusion with CD19CAT-41BBZ CAR T-cells

Interventions

CD19CAT-41BBZ CAR T-cells

Infusion with CD19CAT-41BBZ CAR T-cells

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

1. Age ≥162. B-ALL: high risk or relapsed histologically confirmed CD19+ B-ALL following standard therapy requiring salvage in whom alternative therapies are deemed inappropriate by their treating physician Or DLBCL: relapsed/refractory DLBCL (incl. transformed FL but not Richter's transformation) following ≥2 prior lines of therapy including Rituximab and anthracycline Or CLL/SLL: relapsed/refractory CLL/SLL following ≥2 prior lines of therapy including Ibrutinib or other Bruton's Tyrosine Kinase (BTK) inhibitors Or Follicular Lymphoma which is relapsed / refractory following ≥2 prior lines of therapy Or Mantle Cell Lymphoma which is relapsed / refractory following ≥2 prior lines of therapy 3. Agreement to have a pregnancy test, use adequate contraception (if applicable) 4.Written informed consent

Exclusion Criteria

1. CD19 negative disease

2. B-ALL and CLL: overt CNS involvement (i.e.: patients with CNS2 with neurological symp-toms or patients with CNS3; appendix 2)

3. DLBCL, FL, MCL and CLL/SLL: primary or secondary CNS lymphoma

4. Isolated extramedullary disease (B-ALL and CLL)

5. Active hepatitis B, C or HIV infection

6. Oxygen saturation ≤ 90% on air

7. Bilirubin >2 x upper limit of normal

8. GFR <50ml/min

9. Women who are pregnant or breast feeding

10. Stem Cell Transplant patients only: active significant acute GVHD (overall Grade ≥ II, Seattle criteria) or moderate/severe chronic GVHD (NIH consensus criteria) requiring im-munosuppressive therapy and/or systemic steroids

11. Inability to tolerate leucapheresis

12. Karnofsky score <60% (see appendix 3)

13. Patients who have experienced significant neurotoxicity following blinatumomab

14. Known allergy to albumin or DMSO

15. Life expectancy <3months

16. Significant cardiac disease, left ventricular ejection fraction <40% and uncontrolled cardiac arrhythmias (patients with rate-controlled atrial fibrillation are not excluded)

17. Pre-existing neurological disorders (other than CNS involvement of underlying haemato-logical malignancy)

18. DLBCL only:

• Any contraindications to PD-1 antibody Pembrolizumab
• History of autoimmune disease (e.g. Crohn's, rheumatoid arthritis, systemic lupus) re-sulting in end organ injury or requiring systemic immunosuppression/systemic disease modifying agents within the last 24 months
• Evidence of active pneumonitis on chest computed tomography (CT) scan at screening or history of drug-induced pneumonitis, idiopathic pulmonary fibrosis, organising pneu-monia (e.g. bronchiolitis obliterans), or idiopathic pneumonitis. Prior radiation pneu-monitis in the radiation field (fibrosis) is allowed (if >24 weeks since the event)
• Chest/mediastinal radiation within 24 weeks of CAR T-cellinfusion

1. Severe intercurrent infection at the time of scheduled CD19CAR T-cell infusion

2. Requirement for supplementary oxygen or active pulmonary infiltrates at the time of scheduled CD19CAR T-cell infusion

3. Allogeneic transplant recipients with active significant acute GVHD overall grade ≥II or moderate/severe chronic GVHD requiring systemic steroids or other immunosuppres-sion at the time of scheduled CD19CAR T-cell infusion. Note: Such patients will be ex-cluded until the patient is GVHD free and off steroids

1. Severe intercurrent infection at the time of scheduled CD19CAR T-cell infusion

2. Requirement for supplementary oxygen or active pulmonary infiltrates at the time of scheduled CD19CAR T-cell infusion

3. Grade 3-4 CRS and or grade 3-4 neurotoxicity following Day 0 CD19CAR T-cell dose

4. Grade 1-2 neurotoxicity (if occurred) following Day 0 CD19CAR T-cell dose that has not fully resolved prior to proposed administration of 2nd CD19CAR T-cell dose

5. Persisting Grade 2 CRS following Day 0 CD19CAR T-cell dose that has not resolved to ≤ Grade 1 CRS prior to proposed administration of 2nd CD19CAR T-cell dose

6. Allogeneic transplant recipients with active significant acute GVHD overall grade ≥II or moderate/severe chronic GVHD requiring systemic steroids or other immunosuppression at the time of scheduled CD19CAR T-cell infusion* *Note: Such patients will be excluded until the patient is GVHD free and off steroids

• Minimum Eligible Age: 16 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

University College, London

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Karl Peggs

Role: STUDY_CHAIR

University College London Hospitals

Locations

University College London Hospital

London, , United Kingdom

Countries

United Kingdom

References

Roddie C, Dias J, O'Reilly MA, Abbasian M, Cadinanos-Garai A, Vispute K, Bosshard-Carter L, Mitsikakou M, Mehra V, Roddy H, Hartley JA, Spanswick V, Lowe H, Popova B, Clifton-Hadley L, Wheeler G, Olejnik J, Bloor A, Irvine D, Wood L, Marzolini MAV, Domning S, Farzaneh F, Lowdell MW, Linch DC, Pule MA, Peggs KS. Durable Responses and Low Toxicity After Fast Off-Rate CD19 Chimeric Antigen Receptor-T Therapy in Adults With Relapsed or Refractory B-Cell Acute Lymphoblastic Leukemia. J Clin Oncol. 2021 Oct 20;39(30):3352-3363. doi: 10.1200/JCO.21.00917. Epub 2021 Aug 31.

Reference Type: DERIVED

PMID: 34464155 (View on PubMed)

Other Identifiers

UCL/16/0530

Identifier Type: -

Identifier Source: org_study_id