Safety and Efficacy of ALLO-501A Anti-CD19 Allogeneic CAR T Cells in Adults With Relapsed/Refractory Large B Cell Lymphoma (ALPHA2)

2022-501927-25-00 Protocol ALLO-501A-201 Therapeutic exploratory (Phase II) Ended

Start 29 Sep 2023 · End 12 Jan 2024 · Status Ended · 2 EU/EEA countries · 15 sites · Protocol ALLO-501A-201

Overview

Sponsor-declared trial summary

Phase Therapeutic exploratory (Phase II)
Status Ended
Participants planned 100
Countries 2
Sites 15

Large B-Cell Lymphoma (LBCL)

Phase 2 Primary Objectives: Efficacy To assess the clinical efficacy of ALLO-501A as measured by ORR and assessed by IRC in subjects with R/R LBCL.

Key facts

Sponsor
Allogene Therapeutics Inc.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04], Diseases [C] - Hemic and Lymphatic Diseases [C15], Diseases [C] - Immune System Diseases [C20]
Trial duration
29 Sep 2023 → 12 Jan 2024
Decision date (initial)
2023-07-11
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes
Funding sources
Allogene Therapeutics Inc.

External identifiers

EU CT number
2022-501927-25-00
ClinicalTrials.gov
NCT04416984

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Pharmacodynamic, Therapy, Safety, Pharmacokinetic, Efficacy

Phase 2 Primary Objectives:

Efficacy To assess the clinical efficacy of ALLO-501A as measured by ORR and assessed by IRC in subjects with R/R LBCL.

Secondary objectives 10

  1. Secondary Objectives (Phase 1 and 2): Efficacy ALLO-501A: To characterize the efficacy of ALLO-501A as measured by DOR and assessed by IRC
  2. Secondary Objectives (Phase 1 and 2): Efficacy ALLO-501A: To characterize the efficacy of ALLO-501A as measured by DOR and assessed by investigator
  3. Secondary Objectives (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic ALLO-501A: To characterize cellular kinetics of ALLO-501A
  4. Secondary Objectives (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic ALLO-501A: To evaluate immunogenicity of ALLO-501A
  5. Secondary Objectives (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic ALLO-647: To characterize depth and duration of lymphodepletion
  6. Secondary Objectives (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic ALLO-647: To characterize the PK of ALLO-647
  7. Secondary Objectives (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic ALLO-647: To characterize the pharmacodynamics of ALLO-647
  8. Secondary Objectives (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic ALLO-647: To evaluate immunogenicity of ALLO-647.
  9. Secondary Objectives (Phase 1 and 2): Safety ALLO-501A: To evaluate the overall safety profile of ALLO-501A following lymphodepletion
  10. Secondary Objectives (Phase 1 and 2): Safety ALLO-647: To evaluate the overall safety profile of ALLO-647

Conditions and MedDRA coding

Large B-Cell Lymphoma (LBCL)

VersionLevelCodeTermSystem organ class
21.0 PT 10012821 Diffuse large B-cell lymphoma recurrent 100000004864
21.1 LLT 10012857 Diffuse large cell lymphoma (Diffuse large B-cell lymphoma) (Working Formulation) refractory 10029104

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 Safety & Efficacy of ALLO-501A Anti-CD19 Allogeneic CAR T Cells in Adults With R/R LBCL
This is a single-arm, open-label, multicenter Phase 1/2 study evaluating the safety, efficacy, cellular kinetics, and immunogenicity of ALLO-501A in adult subjects with R/R LBCL. Once eligibility has been established the treatment phase will occur over the span of 6 days. During lymphodepletion, patients will receive fludarabine, cyclophosphamide, and ALLO-647. ALLO-647 is an experimental antibody. One dose of ALLO-501A will be administered after the lymphodepletion period. ALLO-501A is made in the laboratory by modifying white blood cells, from a healthy person (donor) to help it recognize and fight LBCL. Patients will be monitored for up to 5 years from the initial ALLO-501A infusion. After the 5 years patients will have the option to be followed for 10 additional years in a separate noninterventional, long-term, safety-monitoring study.
Not Applicable None

Regulatory references

Scientific advice from competent authorities
European Medicines Agency

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 8

  1. Histologically confirmed diagnosis of relapsed/refractory large B-cell lymphoma at last relapse per WHO 2017.
  2. At least 1 measurable lesion at time of enrollment
  3. Relapsed or refractory disease after at least 2 lines of chemotherapy.
  4. Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1.
  5. Absence of significant donor (product)-specific anti-HLA antibodies (DSA) at screening.
  6. Adequate hematological function.
  7. Adequate Renal Function.
  8. Adequate Liver Function.

Exclusion criteria 8

  1. Active central nervous system (CNS) involvement by malignancy.
  2. Current thyroid disorder (including hyperthyroidism), except for subjects with hypothyroidism controlled on a stable dose of hormone replacement therapy.
  3. Any other active malignancies that required systemic treatment within 3 years prior to enrollment.
  4. Radiation therapy within 2 weeks prior to ALLO-647.
  5. Prior irradiation to >25% of the bone marrow.
  6. Hypocellular bone marrow for age by institutional standard as determined from a bone marrow biopsy performed at time of screening.
  7. Autologous HSCT within last 6 months (24 weeks) or allogeneic HSCT within last 6 months (24 weeks) prior to ALLO-647.
  8. Subjects with active systemic bacterial, fungal, or viral infection requiring systemic treatment (including positive blood cultures within 7 days before starting lymphodepletion).

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Phase 2 Primary Endpoints: Efficacy, ORR, defined as assessment of CR or PR, assessed using the Lugano classification criteria 2014; Cheson et al, 2014) by IRC.

Secondary endpoints 16

  1. Secondary Endpoints (Phase 1 and 2): Efficacy ALLO-501A: DOR is defined only for subjects who experience an objective response and is the time from the first objective response to disease progression per (Cheson et al, 2014) and per IRC (Phase 2 only) and per investigator assessment) or death, whichever comes first.
  2. Secondary Endpoints (Phase 1 and 2): Efficacy ALLO-501A: ORR per investigator assessment
  3. Secondary Endpoints (Phase 1 and 2): Efficacy ALLO-501A: Best overall response (CR, PR, SD, PD) (per IRC (Phase 2 only) and per investigator assessment)
  4. Secondary Endpoints (Phase 1 and 2): Efficacy ALLO-501A: PFS, defined as time from the enrollment date to progression, relapse, or death (per IRC (Phase 2 only) and per investigator assessment)
  5. Secondary Endpoints (Phase 1 and 2): Efficacy ALLO-501A: TTR, defined as the time from the enrollment date to the first observed response (per IRC (Phase 2 only) and per investigator assessment)
  6. Secondary Endpoints (Phase 1 and 2): Efficacy ALLO-501A: OS, defined as the time from the enrollment date to death
  7. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: Depth of lymphodepletion, as assessed by lymphocyte count
  8. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: Duration of lymphodepletion, as assessed by lymphocyte recovery
  9. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: PK concentrations will be used in a population PK model
  10. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: ALLO-501A expansion and persistence, eg, Cmax and AUC
  11. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: Pharmacodynamics will be evaluated on host T cell counts.
  12. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: The incidence of ADA against ALLO-501A scFv and/or TALEN®
  13. Secondary Endpoints (Phase 1 and 2): Pharmacokinetic and Pharmacodynamic for ALLO-501A and ALLO-647: Incidence of ADA against ALLO-647
  14. Secondary Endpoints (Phase 1 and 2): Safety ALLO-501A: AEs as characterized by preferred term, frequency, severity timing, seriousness, and relationship to ALLO-501A, The incidence and severity of CRS, GVHD, infections, cytopenias, and neurotoxicity
  15. Secondary Endpoints (Phase 1 and 2): Safety ALLO-647 AEs as characterized by preferred term, frequency, severity, timing, seriousness, and relationship to ALLO-647, The incidence of infusion-related reactions, cytopenias, and infections
  16. Secondary Endpoints (Phase 1 and 2): Safety ALLO-647: The incidence and severity of clinically significant laboratory toxicities

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

ALLO-647

PRD10196741 · Product

Active substance
ALLO-647
Pharmaceutical form
INJECTION
Route of administration
INTRAVENOUS USE
Max daily dose
30 mg milligram(s)
Max total dose
90 mg milligram(s)
Max treatment duration
3 Day(s)
Authorisation status
Not Authorised
ATC code
NOTASSIGN — -
MA holder
ALLOGENE THERAPEUTICS, INC.
Paediatric formulation
No
Orphan designation
No

ALLO-501A

PRD10196712 · Product

Active substance
ALLO-501A
Pharmaceutical form
SUSPENSION FOR INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
120 million organisms million organisms
Max total dose
120 million organisms million organisms
Max treatment duration
1 Day(s)
Authorisation status
Not Authorised
ATC code
NOTASSIGN — -
MA holder
ALLOGENE THERAPEUTICS, INC.
Paediatric formulation
No
Orphan designation
No

Auxiliary 10

Cyclophosphamide 500 mg Powder for Solution for Injection or Infusion

PRD1649348 · Product

Active substance
Cyclophosphamide
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
300 mg/m2 milligram(s)/square meter
Max total dose
900 mg/m2 milligram(s)/square meter
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
L01AA01 — CYCLOPHOSPHAMIDE
Marketing authorisation
PL 04416/1393
MA holder
SANDOZ LTD
MA country
XI
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Phenergan 25mg/ml Solution for Injection

PRD431977 · Product

Active substance
Promethazine Hydrochloride
Substance synonyms
PROMETHAZINE HCL
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRAVENOUS USE
Max daily dose
50 mg milligram(s)
Max total dose
150 mg milligram(s)
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
R06AD02 — PROMETHAZINE
Marketing authorisation
PL 53886/0056
MA holder
OPELLA HEALTHCARE UK LIMITED, TRADING AS SANOFI
MA country
XI
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Loratadine 10 mg Tablets

PRD8915524 · Product

Active substance
Loratadine
Pharmaceutical form
TABLET
Route of administration
ORAL
Max daily dose
10 mg milligram(s)
Max total dose
60 mg milligram(s)
Max treatment duration
6 Day(s)
Authorisation status
Authorised
ATC code
R06AX13 — LORATADINE
Marketing authorisation
PA22871/008/001
MA holder
AZURE PHARMACEUTICALS LTD
MA country
Ireland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

PREVYMIS 240 mg film-coated tablets

PRD5769611 · Product

Active substance
Letermovir
Substance synonyms
MK-8228, (S)-{8-fluoro-2-2[4-(3-methoxyphenyl)-1-piperazinyl]-3-[2-methoxy-5-(trifluoromethyl)-phenyl]-3,4-dihydro-4-quinazolinyl} acetic acid, 2-[(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-4H-quinazolin-4-yl]acetic acid
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL USE
Max daily dose
480 mg milligram(s)
Max total dose
48000 mg milligram(s)
Max treatment duration
100 Day(s)
Authorisation status
Authorised
ATC code
J05AX18 — -
Marketing authorisation
EU/1/17/1245/001
MA holder
MERCK SHARP & DOHME BV
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Solu-Cortef Powder for Solution for Injection or Infusion 100 mg

PRD1179840 · Product

Active substance
Hydrocortisone
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
10 mg/kg milligram(s)/kilogram
Max total dose
30 mg/kg milligram(s)/kilogram
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
H02AB09 — HYDROCORTISONE
Marketing authorisation
PA 0822/137/001
MA holder
PFIZER HEALTHCARE IRELAND
MA country
Ireland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Paracetamol 10 mg/ml solution for infusion

PRD9643730 · Product

Active substance
Paracetamol
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
650 mg milligram(s)
Max total dose
1950 mg milligram(s)
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
N02BE01 — PARACETAMOL
Marketing authorisation
PA2299/056/001
MA holder
BAXTER HOLDING B.V.
MA country
Ireland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Fludarabine phosphate 25 mg/ml Concentrate for Solution for Injection or Infusion

PRD1794909 · Product

Active substance
Fludarabine Phosphate
Pharmaceutical form
SOLUTION FOR INJECTION/INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
30 mg/m2 milligram(s)/square meter
Max total dose
90 mg/m2 milligram(s)/square meter
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
L01BB05 — FLUDARABINE
Marketing authorisation
PL 20075/0379
MA holder
ACCORD HEALTHCARE LIMITED
MA country
United Kingdom
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Quamatel 20 mg por és oldószer oldatos injekcióhoz

PRD870146 · Product

Active substance
Famotidine
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
INTRAVENOUS USE
Max daily dose
20 mg milligram(s)
Max total dose
60 mg milligram(s)
Max treatment duration
3 Day(s)
Authorisation status
Authorised
ATC code
A02BA03 — FAMOTIDINE
Marketing authorisation
OGYI-T-3848/06
MA holder
GEDEON RICHTER PLC.
MA country
Hungary
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

PREVYMIS 480 mg film-coated tablets

PRD5769615 · Product

Active substance
Letermovir
Substance synonyms
MK-8228, (S)-{8-fluoro-2-2[4-(3-methoxyphenyl)-1-piperazinyl]-3-[2-methoxy-5-(trifluoromethyl)-phenyl]-3,4-dihydro-4-quinazolinyl} acetic acid, 2-[(4S)-8-fluoro-2-[4-(3-methoxyphenyl)piperazin-1-yl]-3-[2-methoxy-5-(trifluoromethyl)phenyl]-4H-quinazolin-4-yl]acetic acid
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL USE
Max daily dose
480 mg milligram(s)
Max total dose
48000 mg milligram(s)
Max treatment duration
100 Day(s)
Authorisation status
Authorised
ATC code
J05AX18 — -
Marketing authorisation
EU/1/17/1245/002
MA holder
MERCK SHARP & DOHME BV
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

RoActemra 20 mg/mL concentrate for solution for infusion

PRD2154620 · Product

Active substance
Tocilizumab
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS USE
Max daily dose
24 mg/kg milligram(s)/kilogram
Max total dose
32 mg/kg milligram(s)/kilogram
Max treatment duration
2 Day(s)
Authorisation status
Authorised
ATC code
L04AC07 — -
Marketing authorisation
EU/1/08/492/001
MA holder
ROCHE REGISTRATION GMBH
MA country
Iceland
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Allogene Therapeutics Inc.

Sponsor organisation
Allogene Therapeutics Inc.
Address
210 Grand Avenue
City
South San Francisco
Postcode
94080-3707
Country
United States

Scientific contact point

Organisation
Allogene Therapeutics Inc.
Contact name
Clinical operations

Public contact point

Organisation
Allogene Therapeutics Inc.
Contact name
Clinical operations

Third parties 13

OrganisationCity, countryDuties
Laboratory Corporation Of America Holdings
ORG-100041800
Burlington, United States Other, Laboratory analysis
Navigate Biopharma Services Inc.
ORG-100032721
Carlsbad, United States Other
Cellcarta
ORG-100039881
Antwerp, Belgium Other
Icon Clinical Research Limited
ORG-100008322
Dublin 18, Ireland On site monitoring, Code 12, Code 13, Other, Code 2, Code 5, Data management, Code 8
Imperial Clinical Research Services International Limited
ORG-100037442
Shepperton, United Kingdom Other
Eurofins Viracor Biopharma Services Inc.
ORG-100041736
Lenexa, United States Other
Adaptive Biotechnologies Corp.
ORG-100044428
Seattle, United States Other
Labcorp Central Laboratory Services S.a.r.l. Meyrin
ORG-100011524
Meyrin, Switzerland Other
Neogenomics Laboratories Inc.
ORG-100041804
Aliso Viejo, United States Other
Pharmaceutical Product Development LLC
ORG-100016999
Richmond, United States Other
Labcorp Central Laboratory Services LP
ORG-100044131
Indianapolis, United States Other
Fisher Bioservices Inc.
ORG-100011655
Rockville, United States Other
Medidata Solutions Inc.
ORG-100016256
New York, United States E-data capture

Locations

2 EU/EEA countries · 15 investigational sites

By country

CountryMS statusPlanned subjectsSites
Italy Ended 15 7
Spain Ended 20 8
Rest of world
Australia, United States, Canada, United Kingdom
65

Investigational sites

Italy

7 sites · Ended
Azienda Ospedaliero Universitaria Citta Della Salute E Della Scienza Di Torino
Department of Molecular Biology and Health Science University of Torino, Corso Bramante 88, 10126, Turin
Azienda Socio Sanitaria Territoriale Degli Spedali Civili Di Brescia
Scienze Cliniche e Sperimentali Oncologia, Piazzale Spedali Civili 1, 25123, Brescia
Ospedale San Raffaele S.r.l.
Dipartimento di Oncologia e Onco-ematologia, Via Olgettina 60, 20132, Milan
Humanitas Research Hospital
Humanitas Cancer Center e Dipartimento di Oncologia ed Ematologia, Via Alessandro Manzoni 56, 20089, Rozzano
IRCCS Azienda Ospedaliero-Universitaria Di Bologna
UOC Ematologia, Via Pietro Albertoni 15, 40138, Bologna
Azienda Ospedaliera Papa Giovanni XXIII
Department of Oncology and Hematology, Piazza Oms 1, 24127, Bergamo
Fondazione Policlinico Universitario Agostino Gemelli IRCCS
UOSD Malattie linfoproliferativ e extramidollari Dipartimento di Diagnostica per Immagini, Radiotera, Largo Francesco Vito 1, 00168, Rome

Spain

8 sites · Ended
Hospital Universitario 12 De Octubre
Hematology, Bloque D, Avenida De Cordoba S/n, Madrid
Hospital Universitario De Salamanca
Hematology Service, Paseo De San Vicente 58-182, 37007, Salamanca
Hospital Universitario Donostia
Hematology Service and Hematopoietic Transplant Unit, Pasealeku Doct. Begiristain 109, 20014, Donostia
Hospital Universitario La Paz
Hematology Service, Paseo Castellana 261, 28046, Madrid
Hospital Universitari Vall D Hebron
Hematology Service, Edificio Materno-Infantil, Passeig De La Vall D'hebron 119-129, Barcelona
Catalan Institute Of Oncology
Hematology Department, Avinguda Gran Via De L'hospitalet 199-203, 08908, L'hospitalet De Llobregat
Hospital General Universitario Gregorio Maranon
Hematology and hemotherapy service, Calle Del Doctor Esquerdo 46, 28009, Madrid
Hospital Clinico Universitario De Valencia
Hematology Department, Avenida Blasco Ibanez 17, 46010, Valencia

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Italy 2023-10-20 2023-11-13
Spain 2023-09-29

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2023-02-07 Italy Acceptable
2023-07-11
2023-07-11
2 SUBSTANTIAL MODIFICATION SM-1 2023-10-23 Italy Acceptable
2024-01-11
2024-01-12