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GR1803 — Competitive Intelligence Brief

GR1803 (GR1803) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Bispecific antibody. Area: Oncology.

phase 3 Bispecific antibody Oncology Small molecule Live · refreshed every 30 min

Target snapshot

GR1803 (GR1803) — Genrix (Shanghai) Biopharmaceutical Co., Ltd.. GR1803 is a bispecific antibody that simultaneously engages two distinct immune checkpoints to enhance anti-tumor T cell responses.

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

DrugGenericSponsorPhaseClassTargetApproval / PDUFA
GR1803 TARGET GR1803 Genrix (Shanghai) Biopharmaceutical Co., Ltd. phase 3 Bispecific antibody
Elrexfio Elranatamab Pfizer marketed Bispecific antibody BCMA (B-cell maturation antigen) on plasma cells, plasmablasts, and multiple myeloma cells; CD3 on T-cells 2023-01-01
Elrexfio elranatamab Pfizer marketed Bispecific antibody BCMA (B-cell maturation antigen) on plasma cells, plasmablasts, and multiple myeloma cells; CD3 on T-cells 2023-01-01
Elrantamab elrantamab Pfizer marketed Bispecific Antibody BCMA (B-cell maturation antigen)
TAR-210 TAR-210 Janssen Research & Development, LLC phase 3 Bispecific antibody PD-1 and LAG-3
AK104(SC) AK104(SC) Akeso phase 3 Bispecific antibody; PD-1/TIM-3 checkpoint inhibitor PD-1; TIM-3
CHS-1420 CHS-1420 Coherus Oncology, Inc. phase 3 Bispecific antibody CD47 and CD40

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Bispecific antibody class)

  1. Shanghai Miracogen Inc. · 3 drugs in this class
  2. Atom Therapeutics Co., Ltd · 2 drugs in this class
  3. Pfizer · 2 drugs in this class
  4. Allergan · 1 drug in this class
  5. AstraZeneca · 1 drug in this class
  6. BioNTech SE · 1 drug in this class
  7. DualityBio Inc. · 1 drug in this class
  8. Coherus Oncology, Inc. · 1 drug in this class
  9. Genmab · 1 drug in this class
  10. Amgen · 1 drug in this class

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Cite this brief

Drug Landscape (2026). GR1803 — Competitive Intelligence Brief. https://druglandscape.com/ci/gr1803. Accessed 2026-05-13.

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