Rituximab+mVPDL for CD20(+) Adult Acute Lymphoblastic Leukemia

Precursor Cell Lymphoblastic Leukemia-Lymphoma Clinical Trial

— RADICAL  

Official title:

Phase 2 Study Evaluating the Efficacy of Rituximab Plus Modified VPDL for Newly Diagnosed CD20-Positive Adult Acute Lymphoblastic Leukemia

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT01429610
• Other study ID #: KALLA0804
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: November 2011
• Est. completion date: January 1, 2019

Study information

• Verified date: July 2018
• Source: Asan Medical Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The investigators would like to propose a phase-2 prospective multicenter trial evaluating the efficacy of rituximab combination with our current chemotherapy strategy for adult Acute Lymphoblastic Leukemia (ALL), in order to prove out whether the addition of rituximab during induction, consolidation, and post-alloHCT status can improve the outcome in terms of relapse-free survival (RFS) when compared with our prior data as a historical control.

Description:

According to the recent results on the outcome of escalated daunorubicin-based protocol for adult ALL which has been performed by 'Adult ALL Working Party of the Korean Society of Hematology' (data were announced at 2010 Annual Meeting of ASCO, Chicago, IL), CR rate of 90.6% was satisfactory, but the 2-year / 3-year disease-free survival (DFS) were disappointing (43.6% and 39.9%, respectively), which means that the adequate post-remission therapy to control minimal residual disease after the achievement of CR is very important to improve the outcome of adult ALL.

Allogeneic hematopoietic cell transplantation (AlloHCT) is recommended as a post-remission therapy for patients with adult ALL, and reduced intensity conditioning has been tried to decrease TRM rate. However, many patients received consolidation chemotherapy rather than alloHCT owing to the absence of HLA-matched donor, limitation of age, and combined comorbidities (among 190 patients who have been included in our previously-mentioned study, only 52.3% received alloHCT).

Recently, stagnation in the treatment of adult ALL appears to be reached, maybe due to a borderline for further intensification of chemotherapeutic dose. Dose-escalation strategy has many difficulties in adoption for the treatment of adult ALL in terms of increased morbidity and mortality, not to mention the efficacy of such strategies. New, preferably non-chemotherapy approaches (maybe targeted therapy) are therefore urgently required.

For Ph(+) ALL, the introduction of BCR/ABL tyrosine kinase inhibitor has improved the treatment outcome with tolerable toxicities. Applying a similar strategy to Ph(-) ALL, targeting leukemia surface antigens with monoclonal antibodies is another promising strategy.

CD 20 expression of at least 20% has been known to be found in 22-48% of pre-B ALL, and appears to be associated with a poor prognosis, although there are controversies in pediatric patients. Based on the significant improvement of the outcome in B-cell NHL, preliminary data regarding the use of rituximab in frontline therapy for CD20-positive precursor B-cell ALL suggest its use may be beneficial. Especially, monoclonal antibodies are thought to be more effective when combined with chemotherapy and treated in the state of minimal residual disease, which suggests the interest of evaluating rituximab combined to current chemotherapy of adult ALL. Recent data on the efficacy of rituximab-combined chemotherapy showed that rates of CR and OS were superior with the modified hyperCVAD and rituximab regimens compared with standard hyper-CVAD (70% versus 38%, p<0.001) in younger (age < 60 years) CD20-positive subset, although it was an analysis of different patient groups who were treated with various regimen5.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 78
• Est. completion date: January 1, 2019
• Est. primary completion date: January 1, 2018
• Accepts healthy volunteers: No
• Gender: All
• Age group: 15 Years and older

Eligibility

Inclusion Criteria:

• Patients who were previously untreated and had either ALL or high-risk lymphoblastic lymphoma.

• Patients whose leukemic blast cells express =20% of CD20 antigens at time of diagnosis

• No prior chemotherapy for leukemia (use of hydroxyurea or leukapheresis are permitted.)

• Estimated life expectancy of more than 3 months

• ECOG performance status of 2 or lower, Karnofsky scale > 60

• Adequate cardiac function (EF>45%) on echocardiogram or Heart scan (MUGA scan)

• 15 years of age and over.

• Adequate renal function (creatinine<1.5 mg/dL)

• Adequate hepatic function. (Bilirubin<1.5 mg/dL, transaminases levels<3 times the upper normal limit [5 times for patients with liver metastasis or hepatomegaly]). Even the initial level exceed the upper limits, patient will be acceptable when the levels on day 8 satisfies the inclusion criteria.

• All patients gave written informed consent according to guidelines at each institution's committee on human research.

Exclusion Criteria:

• Acute biphenotypic leukemia, acute biclonal leukemia, or acute mixed leukemia

• Presence of significant uncontrolled active infection

• Presence of uncontrolled bleeding

• Any coexisting major illness or organ failure

• Patients with psychiatric disorder or mental deficiency severe as to make compliance with the treatment unlike, and making informed consent impossible

• Nursing women, pregnant women, women of childbearing potential who do not want adequate contraception

• Patients with a diagnosis of prior malignancy unless disease-free for at least 5 years following therapy with curative intent (except curatively treated nonmelanoma skin cancer, in situ carcinoma, or cervical intraepithelial neoplasia)

Related Conditions & MeSH terms

• Leukemia
• Leukemia, Lymphoid
• Precursor Cell Lymphoblastic Leukemia-Lymphoma

Intervention

Drug:
• Rituximab+mVPDL
Induction: Dauno 90 mg/m2/d by civ (d1-3) Vinc 2 mg iv (d1, 8) Pred 60 mg/m2/d po (d1-14) for Ph(-): L-asp 4,000 units/m2/day im/sc (d17-28) for Ph(+): Imatinib 600mg/d po qd (d8-continue till the end of maintenance or just before alloHCT) Rituximab 375mg/m2/d (d8) Consolidation A (cycle1) D 45 mg/m2/day by continuous iv (d1, 2) V 2 mg iv (d1, 8) P 60 mg/m2/day po (d1-14) for Ph(-): L-asp (d1-14) for Ph(+): Imatinib Rituximab 375mg/m2/d (d8) Consolidation B (cycles2&4) Cyt 2,000 mg/m2/d iv over 2 hr (d1-4) Eto 150 mg/m2/d iv over 3 hr (d1-4) Rituximab 375mg/m2/d d8 Consolidation C (cycles 3&5) Methotrexate 220 mg/m2 iv bolus, then 60mg/m2/h for 36 hr (d1-2, 15-16) Leucovorin 50 mg/m2 iv every 6hr for 3 doses, Rituximab 375mg/m2/d (d8&22) Maintenance (for 2 years) - for Ph(-): 6- Mercaptopurine 60 mg/m2 po qd Methotrexate 20 mg/m2 po qw for Ph(+): imatinib 600mg/d po qd Consider alloHCT

Locations

Country	Name	City	State
Korea, Republic of	Division of Hematology-Oncology, Dong-A University College of Medicine	Busan
Korea, Republic of	Dong-A University College of Medicine	Busan
Korea, Republic of	Inje University Busan Paik Hospital	Busan
Korea, Republic of	Inje University Haeundae-Paik Hospital	Busan
Korea, Republic of	Kosin University College of Medicine, Kosin University Gospel Hospital	Busan
Korea, Republic of	Catholic University of Daegu School of Medicine	Daegu
Korea, Republic of	Keimyung University Dongsan Medical Center	Daegu
Korea, Republic of	Kyungpook National Unviersity Hospital	Daegu
Korea, Republic of	Yeungnam University College of Medicine	Daegu
Korea, Republic of	Chungnam National University Hospital	Daejeon
Korea, Republic of	Chonnam National University Hwasun Hospital	Hwasun	Chollanamdo
Korea, Republic of	Hematologic Oncology Clinic, National Cancer Center	Ilsan	Kongki
Korea, Republic of	Asan Medical Center, University of Ulsan College of Medicine	Seoul
Korea, Republic of	Chung-Ang University Hospital	Seoul
Korea, Republic of	Ewha Womans University Mokdong Hospital	Seoul
Korea, Republic of	Korea University Anam Hospital	Seoul
Korea, Republic of	Seoul National University Hospital	Seoul
Korea, Republic of	Soonchunhyang University Hospital	Seoul
Korea, Republic of	Ulsan University Hospital, University of Ulsan College of Medicine	Ulsan

Sponsors (1)

Lead Sponsor	Collaborator
Asan Medical Center

Country where clinical trial is conducted

Korea, Republic of, 

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* Note: There are 32 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	relapse-free survival (RFS) rate		2 years
Secondary	complete remission (CR) rates	among total patients / each subset of subsets A.; [Subset A]; Precursor B-cell vs. T-cell; Younger (age<60 years) vs. older (age=60 years); Risk group: standard vs. high	4 weeks (from the initiation of induction treatment)
Secondary	relapse-free survival rates	among patients in each subset of A & B.; [Subset A]; Precursor B-cell vs. T-cell; Younger (age<60 years) vs. older (age=60 years); Risk group: standard vs. high.; [Subset B]; AlloHCT recipients vs. non-recipients.	2 years
Secondary	overall survival rates	among total patients / each subset of A & B; [Subset A]; Precursor B-cell vs. T-cell; Younger (age<60 years) vs. older (age=60 years); Risk group: standard vs. high [Subset B]; AlloHCT recipients vs. non-recipients.	2 years
Secondary	Cumulative incidence and maximal severity of acute / chronic graft-versus-host disease	among alloHCT recipients	2 years