Phase 3 Study of Zandelisib (ME-401) in Combination With Rituximab in Patients With iNHL - (COASTAL)
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ClinicalTrials.gov Identifier: NCT04745832 |
Recruitment Status :
Active, not recruiting
First Posted : February 9, 2021
Last Update Posted : January 13, 2023
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Condition or disease | Intervention/treatment | Phase |
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Follicular Lymphoma (FL) Non Hodgkin Lymphoma Marginal Zone Lymphoma | Drug: Zandelisib Drug: Rituximab Drug: Bendamustine Drug: CHOP | Phase 3 |
This is an open label, randomized, two-arm Phase 3 study in subjects with relapsed or refractory FL and MZL to evaluate efficacy and safety of zandelisib in combination with rituximab in comparison to standard immunochemotherapy (Rituximab-Bendamustine or Rituximab-CHOP).
Subjects must have relapsed after at least one previous line of systemic immunochemotherapy. Previous treatments must have included an anti-CD20 monoclonal antibody (mAb) with chemotherapy such as Bendamustine (B), CHOP, CVP, FND, or similar regimens, or an anti-CD20 mAb with Lenalidomide (L).
Approximately 534 randomized subjects will be enrolled in this study.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 534 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Arm 1: Rituximab plus Zandelisib Arm 2: Rituximab plus chemotherapy (CHOP or Bendamustine) |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 3, Randomized, Open-Label, Controlled, Multicenter Study of Zandelisib (ME- 401) in Combination With Rituximab Versus Standard Immunochemotherapy in Patients With Relapsed Indolent Non Hodgkin's Lymphoma (iNHL) - The COASTAL Study |
Actual Study Start Date : | August 13, 2021 |
Estimated Primary Completion Date : | April 2026 |
Estimated Study Completion Date : | September 2031 |

Arm | Intervention/treatment |
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Experimental: Rituximab plus Zandelisib
Rituximab plus Zandelisib for 6 cycles followed by Zandelisib for 20 cycles
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Drug: Zandelisib
Zandelisib 60 mg capsules taken daily for two cycles followed by intermittent schedule starting at Cycle 3
Other Name: ME-401 Drug: Rituximab Rituximab IV 375 mg/m2 for 6 cycles
Other Names:
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Experimental: Rituximab plus chemotherapy
Rituximab and Bendamustine or Rituximab with (CHOP) for 6 cycles
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Drug: Rituximab
Rituximab IV 375 mg/m2 for 6 cycles
Other Names:
Drug: Bendamustine Bendamustine IV 90 mg/m2 on Days 1 and 2 for 6 cycles
Other Name: Bendeka, Treanda, Belrapzo Drug: CHOP Cyclophosphamide, Vindcristine IV, and Prednisone daily orally
Other Name: cyclophosphamide 750 mg/m2, hydroxydoxorubicin IV 50 mg/m2, vincristine IV 1.4 mg/m2 and prednisone 100 mg daily |
- Progression Free Survival [ Time Frame: 5 years ]PFS is defined as the time from randomization date until the date of disease progression, or death from any cause
- Overall Response Rate (ORR) [ Time Frame: 5 years ]ORR is defined as the proportion of subjects who have a best overall response of CR or PR according to the Lugano Classification over the entire duration of the study, including the efficacy follow-up period.
- Complete Response Rate (CRR) [ Time Frame: 5 years ]CRR is defined as the proportion of subjects who have a best overall response of CR during the study (i.e., up to time of analysis of PFS).
- Overall Survival [ Time Frame: 10 years ]OS is defined as the time (in days) from randomization until death from any cause. For subjects alive at the time of analysis, they will be censored at the last documented alive date.
- Number of Treatment Emergent AEs (Zandelisib when combined with Rituximab) [ Time Frame: 5 years ]Measured by the number of Treatment Emergent AEs
- Number of SAEs (Zandelisib when combined with Rituximab) [ Time Frame: 5 years ]Measured by the number of SAEs
- Number of Lab Abnormalities (Zandelisib when combined with Rituximab) [ Time Frame: 5 years ]Measured by the number of laboratory abnormalities

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Male or female subjects ≥18 years of age, ≥19 years in Korea, or ≥20 years for subjects in Japan and Taiwan
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Histologically confirmed diagnosis of CD20 positive iNHL with histological subtype limited to:
- FL Gr 1, Gr 2, or Gr 3a
- MZL (splenic, nodal, or extra-nodal)
- Subjects with relapsed or refractory disease who received ≥1 prior lines of therapy
- Subjects must have at least one bi-dimensionally measurable lesion >1.5 cm
- Adequate hematologic parameters at screening unless abnormal values are due to disease
- Adequate renal and hepatic function
- Adequate cardiac function based on ECG and LVEF assessments
Exclusion Criteria:
- Histologically confirmed diagnosis of FL Gr 3b or transformed disease
- Prior therapy with PI3K inhibitors
- Ongoing or history of drug-induced pneumonitis
- Known lymphomatous involvement of the central nervous system
- Tested positive for or active viral infection with hepatitis B or C virus
- Tested positive or active infection with human immunodeficiency virus
- Tested positive, or active infection with human T-cell leukemia virus type 1
- Any uncontrolled clinically significant illness
- History of clinically significant cardiovascular abnormalities such as congestive heart failure
- History of clinically significant gastrointestinal (GI) conditions
- Females who are pregnant

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04745832

Responsible Party: | MEI Pharma, Inc. |
ClinicalTrials.gov Identifier: | NCT04745832 |
Other Study ID Numbers: |
ME-401-004 2020-004199-16 ( EudraCT Number ) |
First Posted: | February 9, 2021 Key Record Dates |
Last Update Posted: | January 13, 2023 |
Last Verified: | December 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Lymphoma Lymphoma, Non-Hodgkin Lymphoma, B-Cell, Marginal Zone Neoplasms by Histologic Type Neoplasms Lymphoproliferative Disorders Lymphatic Diseases Immunoproliferative Disorders Immune System Diseases Lymphoma, B-Cell Prednisone Cyclophosphamide Bendamustine Hydrochloride Rituximab Vincristine |
Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs Antirheumatic Agents Antineoplastic Agents, Alkylating Alkylating Agents Molecular Mechanisms of Pharmacological Action Antineoplastic Agents Myeloablative Agonists Antineoplastic Agents, Immunological Anti-Inflammatory Agents Glucocorticoids Hormones Hormones, Hormone Substitutes, and Hormone Antagonists Antineoplastic Agents, Hormonal |