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DRL_RI

Phase 3

Follicular Lymphoma | Monoclonal antibody | Oncology |Dr. Reddy's Laboratories Ltd|Trials Updated: Jan 22, 2024

DRL_RI development status

Highest phase Phase 3
Registered trials 1 across 1 sponsor since Nov 2014

DRL_RI target and mechanism

ModalityMonoclonal antibody

Also known as Experimental: Arm A: DRL_RI, DRL_RI (Proposed rituximab biosimilar)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMCBiomarker
Total Trials3
Total Enrollment733

FDA Designations

No designations recorded

DRL_RI clinical trials

DRL_RI · 3 trials · 2 indications

Phase 3 2Phase 1 1
NCT04268771A Phase III Transition Study of DRL Rituximab to Reference Medicinal ProductsRheumatoid Arthritis
COMPLETED140 Analytics
NCT03976102Compare Efficacy, Safety, and Immunogenicity of Proposed Rituximab Biosimilar (DRL_RI) With MabThera® in LTB Follicular LymphomaFollicular Lymphoma
COMPLETED317 Analytics
PHASE3COMPLETED
A Phase III Transition Study of DRL Rituximab to Reference Medicinal Products
Rheumatoid ArthritisUnlock trial analytics
PHASE3COMPLETED
Compare Efficacy, Safety, and Immunogenicity of Proposed Rituximab Biosimilar (DRL_RI) With MabThera® in LTB Follicular Lymphoma
Follicular LymphomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Subjects With Positive Anti-Drug Antibodies (ADA) on Day 1
ADA will be obtained before the administration of study treatment on Day 1

For Immunogenicity: Number of subjects with positive Anti-Drug Antibodies (ADA) on Day 1 was reported

Number of Subjects With Positive Anti-Drug Antibodies (ADA) on Day 15
ADA will be obtained before the administration of study treatment on Day 15

For Immunogenicity: Number of subjects with positive Anti-Drug Antibodies (ADA) on Day 15 was reported

Number of Subjects With Positive Anti-Drug Antibodies (ADA) at Week 4
ADA will be obtained before the administration of study treatment at Week 4

For Immunogenicity: Number of subjects with positive Anti-Drug Antibodies (ADA) at Week 4 was reported

Number of Subjects With Positive Anti-Drug Antibodies (ADA) at Week 8
ADA will be obtained before the administration of study treatment at Week 8

For Immunogenicity: Number of subjects with positive Anti-Drug Antibodies (ADA) at Week 8 was reported

Number of Subjects With Positive Anti-Drug Antibodies (ADA) at Week 12 Visits
ADA will be obtained at Week 12

For Immunogenicity: Number of subjects with positive Anti-Drug Antibodies (ADA) at Week 12 visits was reported

Best Overall Response Rate (BORR) for Low Tumor Burden Follicular Lymphoma
Month 7 (Week 28)

Best Overall Response Rate (BORR) is defined as the proportion of participants in each treatment group that achieved a best overall response of either Complete response (CR), unconfirmed Complete response (CRu) or Partial response (PR), up to Month 7 (Week 28) based on central radiology review in accordance with the Cheson, 1999 response criteria for Non-Hodgkin's Lymphomas. As per Cheson 1999, response criteria for target lesions and assessed by radiology: Complete response (CR): All lesions with a longest diameter should be regressed to normal size (≤ 15 mm) or short axis regressed to ≤ 10 mm with confirmed Bone marrow normalization; unconfirmed Complete response (CRu): All lesions with a longest diameter should be regressed to normal size (≤ 15 mm) or short axis regressed to ≤ 10 mm with non-confirmed Bone marrow normalization; Partial Response (PR): ≥ 50 % decrease of sum of products of diameter(SPD) of all the target lesions; Overall Response (OR)=CR+CRu+PR.

Area Under the Concentration-Time Curve From Time 0 to 336 Hours (AUC0-336) Post First Dose
2 weeks

PK samples were collected pre-infusion; 3 hours post infusion; EOI; and at 1, 6, 24, 48, 168 hours post End of Infusion. A PK sample at 336 hours post EOI were also to be collected after the second dose.

AUC0-∞ Over the Entire Course of Therapy (2 Doses) From Day 1 Through Week 16.
16 weeks

PK samples were collected pre-infusion; 3 hours post infusion; EOI; and at 1, 6, 24, 48, 168 hours post End of Infusion. A PK sample at 336 hours post EOI were also to be collected after the second dose.

Area Under Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC0-t) (Second Dose).
16 weeks

PK samples were collected pre-infusion; 3 hours post infusion; EOI; and at 1, 6, 24, 48, 168 hours post End of Infusion. A PK sample at 336 hours post EOI were also to be collected after the second dose

Secondary Endpoints

Number of Subjects Reporting Anaphylactic Reactions at Dosing Time Points (Either at Week 1 or Week 3)
Assessments of Anaphylactic reactions will be carried out at either Week 1 or Week 3
Number of Subjects Reporting TEAEs (Treatment Emergent Adverse Events) That Led to Study Drug Discontinuation at Either Week 1 or Week 3 Dosing Timepoint
Assessment of AE's (Adverse Events) that led to study drug discontinuation were carried out at either week 1 or week 3 dosing timepoint
Number of Subjects Reporting SAEs (Serious Adverse Events) From Baseline (Week 1) to End of Study (Week 26)
Assessment of SAE's was carried out from baseline (week 1) to end of study (week 26)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm A: DRL_RIEXPERIMENTALSubjects who have already received at least 1 full course comprising two 1000 mg infusions of either US-rituximab or EU-rituximab and are candidates for re-treatment with Rituximab, will be enrolled. DRL\_RI will be administrated in combination with MTX as two 1000 mg infusions on Day 1 and Day 15
Arm B: US-Rituximab or EU-RituximabACTIVE_COMPARATORSubjects who have already received at least 1 full course comprising two 1000 mg infusions of either US-rituximab or EU-rituximab and are candidates for re-treatment with rituximab, will be enrolled. Patients enrolled in Arm -B will continue to receive US-rituximab or EU-rituximab. The rituximab reference product used (US-licensed rituximab \[Rituxan\] or EU-approved rituximab \[MabThera\]) should be the same in the prior and the randomized treatment course, respectively.
Arm B: MabThera®ACTIVE_COMPARATORMabThera® for infusion 375 mg/m2 administered via IV infusion on Days 1, 8, 15, 22 and Week 12, 20, 28 and 36.
DRL_RIEXPERIMENTAL -
RituxanACTIVE_COMPARATOR -
MabTheraACTIVE_COMPARATOR -

Interventions

NameTypeDescription
Experimental: Arm A: DRL_RIBIOLOGICALProposed rituximab biosimilar, 100mg or 500mg, concentrate for solution for infusion
Arm B: Rituxan®/Mabthera®BIOLOGICALReference product US- rituximab (Rituxan®) or EU-rituximab (MabThera®), 100mg or 500mg, concentrate for solution for infusion
DRL_RI (Proposed rituximab biosimilar)BIOLOGICALProposed rituximab biosimilar, 100mg and 500mg, concentrate for solution for infusion
MabThera®OTHERReference product rituximab, 100mg and 500mg, concentrate for solution for infusion
DRL_RIBIOLOGICALTwo 1000 mg intravenous infusions, one each on Day 1 and Day 15
RituxanBIOLOGICALTwo 1000 mg intravenous infusions, one each on Day 1 and Day 15
MabTheraBIOLOGICALTwo 1000 mg intravenous infusions, one each on Day 1 and Day 15
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites26

Inclusion Criteria: 1. Male or female subjects aged 18 years or older who have provided valid written informed consent. 2. Subjects with a diagnosis of active RA who are eligible for the subsequent treatment course with US-rituximab or EU-rituximab according to the clinical judgment of the investig...

Countries:United StatesIndiaUkraine
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Frequently asked questions about DRL_RI

What is DRL_RI?

DRL_RI is an investigational monoclonal antibody developed by Dr. Reddy's Laboratories Ltd as a proposed rituximab biosimilar. It is being studied in Phase 3 clinical trials for follicular lymphoma and rheumatoid arthritis. DRL_RI is designed to be a biosimilar to the reference rituximab product, MabThera.

What is DRL_RI used for in follicular lymphoma?

DRL_RI is being developed for the treatment of follicular lymphoma, a type of non-Hodgkin lymphoma. A Phase 3 trial (NCT03976102) compared the efficacy, safety, and immunogenicity of DRL_RI with MabThera in patients with low tumor burden follicular lymphoma. The trial has been completed.

What does DRL_RI target?

DRL_RI targets CD20, a protein found on the surface of B cells. As a monoclonal antibody, it binds to CD20 and is designed to induce B-cell depletion. This mechanism is similar to that of rituximab, the reference product.

Who is developing DRL_RI?

DRL_RI is being developed by Dr. Reddy's Laboratories Ltd, a pharmaceutical company based in India. The company's stock ticker is RDY. Dr. Reddy's is developing DRL_RI as a proposed biosimilar to rituximab.

What phase is DRL_RI in?

DRL_RI is in Phase 3 clinical development. Two Phase 3 trials have been completed: one in rheumatoid arthritis (NCT04268771) and one in follicular lymphoma (NCT03976102). A Phase 1 trial (NCT02296775) in rheumatoid arthritis has also been completed. DRL_RI is investigational and not approved by the FDA.

What clinical trials is DRL_RI in?

DRL_RI has been studied in three completed clinical trials. The Phase 3 trials are NCT04268771 in rheumatoid arthritis and NCT03976102 in follicular lymphoma. A Phase 1 trial, NCT02296775, compared three anti-CD20 monoclonal antibodies in rheumatoid arthritis. All trials are completed.

Is DRL_RI the same as rituximab?

DRL_RI is a proposed rituximab biosimilar, meaning it is designed to be highly similar to the reference rituximab product, MabThera. It is not identical to rituximab but is intended to have comparable safety and efficacy. DRL_RI is also known as DRL_RI (Proposed rituximab biosimilar).