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GDP

Phase 2

Large Cell Lymphoma, Diffuse | Small molecule | Oncology |Genmab A/S|Last Updated: May 6, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment32

FDA Designations

No designations recorded

Clinical trial landscape

GDP · 1 trial · 3 indications

Phase 2 1
NCT05852717Safety and Efficacy of Epcoritamab With Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell LymphomaLarge Cell Lymphoma, Diffuse
RECRUITING32 Analytics
PHASE2RECRUITING
Safety and Efficacy of Epcoritamab With Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell Lymphoma
Large Cell Lymphoma, DiffuseUnlock trial analytics

Study Endpoints

Primary Endpoints

Complete Response (CR)
4 years

CR rate is defined as proportion of subjects with a CR based on the Lugano Criteria 2022 following 3 cycles of combination treatment.

Secondary Endpoints

Overall Response Rate (ORR)
4 years
Duration of Response (DOR)
4 years
Progression-free Survival (PFS)
4 years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
GDP + Epcoritamab + AutoSCT or CAR T-cell therapyEXPERIMENTALCycles 1-3 (Cycle = 21 days) Epcoritamab will be administered by subcutaneous injection Days 1, 8, and 15. Epcoritamab Day 1: 0.16mg, Day 8: 0.8mg, Day 15: 48mg except Cycle 2-Epcoritamab will administered at 48mg on Days 1, 8 and 15 Gemcitabine will be administered by IV infusion on Days 1 and 8. Gemcitabine Days 1,8: 1,000mg/m\^2 Cisplatin will be administered by IV infusion on Day 1. Cisplatin Day 1: 75mg/m\^2 Dexamethasone will be given by mouth on Days 1-4. Dexamethasone Days 1-4: 40mg After completion of Cycle 3 Autologous stem cell transplant (AutoSCT) OR CAR T-cell therapy
GDP + Epcoritamab + Epcoritamab MaintenanceEXPERIMENTALCycles 1-3 (Cycle = 21 days) Epcoritamab will be administered by subcutaneous injection Days 1, 8, and 15 of each Cycle. Epcoritamab Day 1: 0.16mg, Day 8: 0.8mg, Day 15: 48mg except Cycle 2-Epcoritabab will administered at 48mg on Days 1, 8 and 15 Gemcitabine will be administered by IV infusion on Days 1 and 8 of each Cycle. Gemcitabine Days 1,8: 1,000mg/m\^2 Cisplatin will be administered by IV infusion on Day 1 of each Cycle. Cisplatin Day 1: 75mg/m\^2 Dexamethasone will be given by mouth on Days 1-4 of Cycle 1 ONLY. Dexamethasone Days 1-4: 40mg Cycles 4-9 (Cycle =28 Days) Epcoritamab will be administered by subcutaneous injection on Days 1, 8, and 15 of Cycles 4-9.

Interventions

NameTypeDescription
AutoSCT OR CAR T-cell TherapyPROCEDUREAutologous stem cell transplant (AutoSCT) or CAR T-cell therapy will be performed after Cycle 3 of receiving epcoritamab and GDP
GDPDRUGGemcitabine Cisplatin Dexamethasone
EpcoritamabDRUGEpcoritamab
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: 1. Written informed consent and HIPAA authorization for release of personal health information prior to registration. NOTE: HIPAA authorization may be included in the informed consent or obtained separately. 2. Age ≥ 18 years at the time of consent. 3. ECOG Performance Status of...

Countries:United States
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Frequently asked questions about GDP

What is GDP used for in Large Cell Lymphoma, Diffuse?

GDP is a combination salvage chemotherapy regimen being studied for relapsed or refractory large B-cell lymphoma. It is being evaluated in a Phase 2 clinical trial in combination with epcoritamab, an investigational therapy, for patients with diffuse large B-cell lymphoma that has relapsed or is refractory to prior treatment.

Who makes GDP?

GDP is being studied by Genmab A/S, a biopharmaceutical company listed on the Nasdaq under the ticker GMAB. The company is sponsoring a Phase 2 clinical trial that evaluates the safety and efficacy of GDP when combined with epcoritamab in patients with relapsed or refractory large B-cell lymphoma.

What phase is GDP in?

GDP is in Phase 2 clinical development. It is being evaluated in an ongoing, recruiting Phase 2 trial (NCT05852717) that combines GDP with epcoritamab for the treatment of relapsed or refractory large B-cell lymphoma. The trial is enrolling adult patients in the United States.

What clinical trials is GDP in?

GDP is being studied in one active Phase 2 clinical trial, NCT05852717, titled 'Safety and Efficacy of Epcoritamab With Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell Lymphoma.' The trial is recruiting 32 participants in the United States and is not randomized or double-blinded.

Is GDP FDA approved?

GDP is investigational and not FDA approved for the treatment of large B-cell lymphoma. It is currently in Phase 2 clinical development, with an active trial evaluating its safety and efficacy in combination with epcoritamab for patients with relapsed or refractory disease.