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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05249959
Other study ID # FIL_COLUMN
Secondary ID
Status Recruiting
Phase Phase 2
First received
Last updated
Start date April 21, 2022
Est. completion date February 2027

Study information

Verified date December 2023
Source Fondazione Italiana Linfomi - ETS
Contact Stefania Badiali
Phone +39.059.9769912
Email sbadiali@filinf.it
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a prospective, phase 2, multicenter, open-label, single-arm study. Primary objective is to assess the efficacy of loncastuximab tesirine given as consolidation therapy after salvage immunochemotherapy in BTKi (Bruton Tyrosine Kinase inhibitors) -treated (or BTKi intolerant) R/R (Relapse or Refractory) MCL (Mantle Cell Lymphoma) patients. The sponsor of this clinical trial is Fondazione Italiana Linfomi (FIL).


Description:

This is a Phase 2, multicenter, open-label, single-arm study of the efficacy and safety of loncastuximab tesirine given as consolidation therapy after salvage immunochemotherapy in BTKi-treated (or BTKi intolerant) R/R MCL patients. Primary Objective: - To assess the efficacy of a consolidation with loncastuximab tesirine following salvage immunochemotherapy (2 courses of Rituximab-Bendamustine-Cytarabine, R-BAC) in Bruton Tyrosine Kinase inhibitors (BTKi) treated (or BTKi intolerant) relapsed/refractory (R/R) Mantle Cell Lymphomas (MCL). Secondary Objectives: - To evaluate the safety profile of loncastuximab tesirine consolidation. - To assess the rate of Minimal Residual Disease (MRD) negativity after loncastuximab tesirine consolidation. R/R MCL patients after one, two, three or four lines of treatment including BTKi treatment (or BTKi intolerant), with complete response (CR) or partial response (PR) or with stable disease (SD) after salvage immunochemotherapy (R-BAC x 2, Rituximab - Bendamustine, Cytarabine) will undergo consolidation with loncastuximab tesirine. A patient with CR, PR or SD after one R-BAC course, which is unable to undergo a second course due to toxicity to chemotherapy, can be considered to proceed for consolidation. After checking inclusion and exclusion criteria and signing written informed consent, patients will be enrolled in the study, and the system will assign them an alphanumeric code that will identify the patient in every study procedure. Efficacy parameters will be evaluated according to the Lugano 2014 Classification. Toxicity parameters will be evaluated according to the definitions of the current version of the NCI (National Cancer Institute) CTCAE (Common Terminology Criteria for Adverse Events) criteria. After treatment discontinuation, both in the case the protocol treatment was fully administered and in the case of an early discontinuation, patients will be followed-up according to clinical practice timeline and procedures, and information on patient status (progression/relapse, alive/dead, lost to follow-up) will be collected till the end of the study (LPLV), planned 36 months after the start of treatment of the last patient enrolled in the study. In case of progression/relapse during follow-up, the patients will be then followed-up for survival till the study end. 49 patients will be enrolled in the study. The anticipated study dates are: - Total accrual period: 24 months - Last patient last visit (LPLV): 36 months after the start of treatment of the last patient enrolled. The study will include a period of screening up to 21 days, a period of treatment of up to 22 weeks and a follow-up period with visits every 4-8 weeks for the first year after study entry and then every 8-12 weeks for at least 2 years. Treatment includes a period of induction with 2 cycles of 28 days with R-BAC (=8 weeks) + two/four weeks for restaging + 4 doses of loncastuximab tesirine every 21 days (=12 weeks), i.e., a total period of 22 weeks, for patients who achieved CR, PR or SD after salvage immunochemotherapy. A follow-up period with visits every 4-8 weeks for the first year after study entry and then every 8-12 weeks for at least to 2 years. For the study is also planned an extended follow-up after the end of the study requiring participating sites to provide only information on patient status (alive, dead, lost to follow-up) and to record possible events occurred after the end of the study, including diagnosis of second neoplasia and long-term toxicity for additional 2 years after the end of the study. Disease evaluation will be performed initially (Baseline Assessment), after the beginning of treatment with R-BAC (End of Induction), at the end of loncastuximab tesirine consolidation phase (End of Treatment) and then every 6 months during the follow-up period. Non-responder, relapsing or progressive patients will be treated according to best clinical practice. Treatment schedule: Standard Induction phase: 2 courses of R-BAC every 28 days according to the following schedule - Rituximab 375 mg/m2 i.v. Day 1 - Bendamustine 70 mg/m2, Days 2 and 3 - Cytarabine 500 mg/m2, Day 2-4 Reduced Induction phase: For patients deemed FRAIL or UNFIT for standard induction therapy (based on protocol dose and as per medical judgment), reduced R-BAC options may be considered. Two different schedules will be allowed Cycle 1-2 - Rituximab 375 mg/m2 i.v. Day 1 - Bendamustine 70 mg/m2, Days 2 and 3 - Cytarabine 500 mg/m2, Day 2 and 3 or Cycle 1-2 - Rituximab 375 mg/m2 i.v. Day 1 - Bendamustine 100 mg, Days 2 and 3 - Cytarabine 500 mg, Day 2 and 3 An optional pre-phase with steroid (prednisone 1 mg/kg/day, maximum of 7 days before starting induction phase) and/or single dose of Vincristine (up to 2 mg total) was allowed. After restaging at the End of Induction (EOI) patients with CR, PR or SD will receive: CONSOLIDATION PHASE: - 2 infusions of loncastuximab tesirine at a dose of 150 microgram/kg* every three weeks followed by - 2 infusions of loncastuximab tesirine at a dose of 75 microgram/kg* every three weeks - (For patients with BMI> 35 dose will be calculated based on adjusted weight). Patients will undergo initial staging with CT (Computed Tomography) scan, PET (18F-FDG Positron Emission Tomography)/PET-CT scan and bone marrow (BM) biopsy. Patients will be fully restaged after induction (EOI), after loncastuximab tesirine consolidation (EOT) and then every six months only with CT-scan. Tumour re-biopsy will be performed only if clinically indicated. Bone Marrow (BM) and Peripheral Blood (PB) samples for MRD evaluation purposes will be taken at the same time points when CT-scan is done (to be performed centrally at certified Euro-MRD academic laboratories, according to Euro-MRD guidelines). Response to treatment will be evaluated according to the Lugano 2014 criteria. Based on published results we considered the expected 12-month PFS with available treatments to be <20%; we hypothesized that, in this setting of patients, a consolidation with loncastuximab tesirine (ADCT-402) may increase the expected 12-month PFS to ≥40% According to one arm non-parametric survival provided by SWOG (Southwest Oncology Group-NCI), with an alpha error (one sided) equal to 0.05, a beta error equal to 0.10, 2-years of accrual and a minimum of 3 year of follow-up, the required sample size consist of 49 patients who start treatment after screening phase. The lower limit of the 90% confidence interval (according to 1-sided alpha error of 0.05) of the 12-month PFS must be higher than the null hypothesis of 0.20 to conclude that the new treatment is promising for a subsequent phase III study.


Recruitment information / eligibility

Status Recruiting
Enrollment 56
Est. completion date February 2027
Est. primary completion date February 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 79 Years
Eligibility Inclusion Criteria: - Histologically documented diagnosis of MCL as defined in the 2017 edition of the World Health Organization (WHO) classification - Age = 18 and < 80 years - Relapsed/Refractory disease after one, two, three or four lines of treatment - Bendamustine-naive or relapsed after at least two years after the last cycle of a bendamustine-containing regimen - Previous treatment with BTKi (Bruton Tyrosine Kinase inhibitors) monotherapy or BTKi containing regimens with R/R disease; and/or patients who discontinued BTKi monotherapy or BTKi containing regimens for adverse events and have active disease necessitating treatment. - Previous treatment with any anti-CD19 agents is allowed (included CAR-T treatment) If previous anti-CD19 treatment has occurred, tissue CD19 expression must be assessed by histology or flow cytometry - Venetoclax treated patients are allowed. - Stem cell transplant eligible patients are allowed. - Measurable nodal or extranodal disease = 1.5 cm in longest diameter, and measurable in 2 perpendicular dimensions. Note: Patients with bone marrow involvement only are eligible. In case of bone marrow infiltration only, bone marrow aspiration and biopsy are mandatory for all staging evaluations - ECOG (Eastern Cooperative Oncology Group)/WHO (World Health Organization) performance status = 2 (unless MCL-related) - The following laboratory values at screening (unless due to bone marrow involvement by lymphoma): - Absolute Neutrophil count (ANC) > 1.0×109/L - Platelet count = 75.000/mm3 - Creatinine clearance = 40 mL/min (Cockcroft-Gault formula) - Aspartate transaminase (AST) and alanine transaminase (ALT) = 3.0 x ULN (upper limit of normal) - Bilirubin = 1.5 x ULN (unless bilirubin rise is due to Gilbert's syndrome or of non- hepatic origin) - Subject understands and voluntarily signs an informed consent form approved by an Independent Ethics Committee (IEC), prior to the initiation of any screening or study-specific procedures. - Subject must be able to adhere to the study visit schedule and other protocol requirements. - Life expectancy = 3 months. - Women of childbearing potential (WOCBP) and men must agree to use effective contraception if sexually active.This applies for the time period between signing of the informed consent form and at least 10 months after last loncastuximab tesirine (ADCT-402) dose. Men with female partners who are of childbearing potential must agree to use effective contraception if sexually active. This applies for the time period between signing of the informed consent form and at least 7 months after last loncastuximab tesirine (ADCT-402) dose. Exclusion Criteria: - Subjects who have received a bendamustine containing regimen and relapsed less than two years after the end of treatment. - Known history of hypersensitivity to human antibodies. - Allogenic stem cell transplant within 6 months prior to start of first study drug. - Allogenic stem cell transplant with active / uncontrolled graft-versus-host disease. - Previous treatment with CD19 targeting agents. - More than four lines of previous treatment (autologous stem cell transplant performed as part of consolidation to a previous line of therapy should not be considered as a line of therapy). - Active second malignancy in the last three years other than non-melanoma skin cancers, non-metastatic prostate cancer, in situ cervical cancer, ductal or lobular carcinoma in situ of the breast, or any other tumor that the Sponsor and Coordinating Investigator agree and document should not be considered preclusive to participate in the study. - Major surgery or any anticancer therapy including chemotherapy, immunotherapy, radiotherapy, investigational therapy, including targeted small molecule agents within 14 days prior to start of study drug (R-BAC). A shorter interval in special settings must be approved by the Sponsor and/or Investigator. - Cardiovascular disease (NYHA, New York Heart Association, class =2). - Significant history of neurologic, psychiatric, endocrinological, metabolic, immunologic, or hepatic disease that would preclude participation in the study or compromise ability to give informed consent. - Evidence of other clinically significant uncontrolled condition(s) including, but not limited to: - Uncontrolled and/or active systemic infection (viral including COVID 19, bacterial or fungal); - Chronic or acute hepatitis B (HBV) or hepatitis C (HCV) requiring treatment. Note: subjects with serologic evidence of prior vaccination to HBV (i.e., HBsAg negative, HBsAb positive and HBcAb negative) or positive HBcAb from previous infection or intravenous immunoglobulins (IVIG) may participate; inactive carriers (HBsAg positive with undetectable HBV DNA) are eligible. Patients with presence of HCV antibody are eligible only if PCR results (polimerase chain reaction) negative for HCV RNA. - HIV seropositivity. - Lymphoma with active CNS (central nervous system) involvement at the time of screening, including leptomeningeal disease. - Congenital long QT syndrome or a corrected QTcF interval of >480 msec at screening (unless secondary to pacemaker or bundle branch block). - Any other significant medical illness, abnormality, or condition that would, in the Investigator's judgment, make the patient inappropriate for study participation or put the patient at risk. - If female, the patient is pregnant or breast-feeding.

Study Design


Intervention

Drug:
Consolidation with ADCT-402 (loncastuximab tesirine) after salvage immunochemotherapy at standard dose (R-BAC, Rituximab - Bendamustine, Ara-C))
Standard Induction phase (cycle 1-2 of R-BAC every 28 days according to the following schedule): Rituximab 375 mg/m2 i.v. Day 1 Bendamustine 70 mg/m2, Days 2 and 3 Cytarabine 500 mg/m2, Day 2-4 After restaging at the End of Induction (EOI) patients with CR (complete response), PR (partial response) or SD (stable disease) will receive: CONSOLIDATION PHASE: 2 infusions of loncastuximab tesirine at a dose of 150 microgram/kg every three weeks followed by 2 infusions of loncastuximab tesirine at a dose of 75 microgram/kg every three weeks
Consolidation with ADCT-402 (loncastuximab tesirine) after salvage immunochemotherapy at reduced dose (R-BAC, Rituximab - Bendamustine, Ara-C)
Reduced Induction phase (cycle 1-2 with two different schedules for patients deemed FRAIL or UNFIT for standard induction therapy,based on protocol dose and as per medical judgment are allowed). Rituximab 375 mg/m2 i.v. Day 1 Bendamustine 70 mg/m2, Days 2 and 3 Cytarabine 500 mg/m2, Day 2 and 3 or Rituximab 375 mg/m2 i.v. Day 1 Bendamustine 100 mg, Days 2 and 3 Cytarabine 500 mg, Day 2 and 3 After restaging at the End of Induction (EOI) patients with CR (complete response), PR (partial response) or SD (stable disease) will receive: CONSOLIDATION PHASE: 2 infusions of loncastuximab tesirine at a dose of 150 microgram/kg every three weeks followed by 2 infusions of loncastuximab tesirine at a dose of 75 microgram/kg every three weeks

Locations

Country Name City State
Italy S.C. Ematologia - A.S.O. "SS Antonio e Biagio e Cesare Arrigo" Alessandria
Italy ASST Spedali Civili di Brescia Brescia
Italy S.C. di Ematologia - A.O. S. Croce e Carle Cuneo
Italy Unità funzionale di Ematologia - Azienda Ospedaliera Universitaria Careggi Firenze
Italy Ematologia - Ospedale Policlinico San Martino S.S.R.L. - IRCCS per l'Oncologia Genova
Italy Ematologia - Fondazione IRCCS Istituto Nazionale dei Tumori di Milano Milano
Italy S.C. Ematologia - ASST Grande Ospedale Metropolitano Niguarda Milano
Italy UOC Ematologia Oncologica - Istituto Nazionale Tumori - IRCCS Fondazione G. Pascale Napoli
Italy SCDU Ematologia - AOU Maggiore della Carità di Novara Novara
Italy Divisione di Ematologia - A.O. Ospedali Riuniti Villa Sofia-Cervello Palermo
Italy Divisione di Ematologia - IRCCS Policlinico S. Matteo di Pavia Pavia
Italy Ematologia - Ospedale delle Croci Ravenna
Italy Ematologia - Azienda Unit? Sanitaria Locale-IRCCS - Arcispedale Santa Maria Nuova Reggio Emilia
Italy U.O. di Ematologia - Ospedale degli Infermi di Rimini Rimini
Italy Dipartimento di Medicina Traslazionale e di Precisione - Policlinico Umberto I - Università "La Sapienza" Istituto Ematologia Roma
Italy U.O. Ematologia - Istituto Clinico Humanitas Rozzano
Italy S.C. Ematologia Universitaria - A.O.U. Città della Salute e della Scienza di Torino Torino
Italy S.C di Ematologia - Ospedale Ca Foncello Treviso
Italy U.O.C Ematologia e Trapianto - A.O. C. Panico Tricase
Italy SC Ematologia - Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) Trieste
Italy U.O. Ematologia - AOU Integrata di Verona Verona

Sponsors (1)

Lead Sponsor Collaborator
Fondazione Italiana Linfomi - ETS

Country where clinical trial is conducted

Italy, 

Outcome

Type Measure Description Time frame Safety issue
Primary Progression-Free Survival (PFS) The length of time during and after the treatment that patients live with the disease, but it does not get worse. Progression-Free Survival (PFS) will be defined from the date of enrollment and the first documentation of recurrence, progression or death from any cause. Responding patients and patients who are lost to follow up will be censored at their last assessment date. PFS will be assessed on an ITT (Intention to Treat) basis. The primary endpoint will be assessed from the beginning of the study up to 36 months.
Secondary Overall Survival (OS) The percentage of patients alive. The endpoint is defined as the time between the start of treatment until death from any cause; patients who are lost at follow up will be censored at their last assessment date. Analysis will be performed on an ITT (Intention to Treat) basis. The endpoint will be assessed from the beginning of the study up to 36 months
Secondary Overall Response Rate (ORR) Overall response rate (ORR) is defined as the proportion of patients who have a complete response (CR), or partial response (PR) or stable disease (SD) to therapy.
Overall Response Rate (ORR) will be defined according to the Lugano 2014 criteria. The best overall response will be defined as the best response between the date of beginning of therapy and the last restaging. Patients without response assessment (due to whatever reason) will be considered as non-responders.
The endpoint will be assessed from the beginning of the study therapy up to 6 months
Secondary Duration of Response (DOR) The length of time that the disease continues to respond to treatment without growing or spreading.
It is also defined as the time from the first documentation of tumor response (CR/PR) to disease progression or death according to Lugano 2014 Criteria. Analysis will be performed on an ITT (Intention to Treat) basis.
The endpoint will be assessed from the beginning of the study therapy up to 36 months
Secondary Event-Free Survival (EFS) The measure of time after treatment that patients have not have cancer come back or get worse.
It is also defined as the time from start of treatment to disease progression, death, or discontinuation of treatment for any reason (e.g. toxicity, patient preference), or initiation of a new treatment without documented progression. Analysis will be performed on an ITT (Intention to Treat) basis.
The endpoint will be assessed from the beginning of the study therapy up to 36 months
Secondary MRD (Minimal Residual Disease) negativity rate The percentage of patients with negative Minimal Residual Disease (MRD) after induction treatment, at the end of consolidation with loncastuximab tesirine and after 6 and 12 months after the end of consolidation. The endpoint will be assessed from the beginning of the study therapy up to 18 months
Secondary Rate of Adverse Events Percentage of toxicities. Any grade III or higher toxicities will be recorded and classified according to the definitions of the current version of the NCI Common Terminology Criteria for Adverse Events (CTCAE). The endpoint will be assessed from the beginning of the study therapy up to 36 months
Secondary Rate of conversion from partial response (PR) to complete response (CR) Percentage of patients that turn from a partial respons to a complete response. This endpoint will be assessed by comparing responses prior to and after loncastuximab tesirine The endpoint will be assessed from the beginning of the study therapy up to 6 months
Secondary Rate of conversion from stable disease (SD) to complete response (CR) and partial response (PR) Percentage of patients that turn from a stable disease to a complete response and partial response .This endpoint will be assessed by comparing responses prior to and after loncastuximab tesirine The endpoint will be assessed from the beginning of the study therapy up to 6 months
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