OnCo
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Cadonilimab

A Chinese two-armed antibody that blocks PD-1 and CTLA-4 together, approved in China for cervical cancer and extending survival even in PD-L1-negative tumours.

Cadonilimab is Akeso's tetravalent PD-1/CTLA-4 bispecific. NMPA approval June 2022 (second-line cervical cancer, ORR ~33%) and 2024 for first-line combination with chemotherapy ± bevacizumab (COMPASSION-16, OS HR 0.64). Also approved in China for first-line gastric cancer (COMPASSION-15, 2024). Designed for tumour-enriched dual blockade with lower immune toxicity than ipilimumab + nivolumab. It had not been approved in the US or EU by 2026.

Schematic of the modality · Bispecific antibody (PD-1×CTLA-4) · not a molecule; see the Bispecific antibodies page
How it works, step by step · animated schematic, not to scale
Immune checkpoint inhibitors
Mechanism, step by step
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1.Two arms bind PD-1 and CTLA-4 on the same exhausted T cell

Modality
Bispecific antibody (PD-1×CTLA-4)
Mechanism
Binds PD-1 and CTLA-4 simultaneously; higher avidity for cells co-expressing both (tumour-infiltrating T cells) concentrates activity in the tumour.
Brand / code
Kaitanni · AK104
Dosing & schedule
Route
Intravenous
Schedule
10 mg/kg every 3 weeks with platinum-paclitaxel ± bevacizumab
Monitoring
Thyroid, liver, glucose, skin; immune-related adverse events
Medicare
Not covered (not FDA-approved)

Not FDA-approved, so there is no US coverage; access is only through a clinical trial or an FDA expanded-access request.

Commercial insurance
unknown

Not FDA-approved, so there is no US coverage; access is only through a clinical trial or an FDA expanded-access request.

Sources: CMS Medicare Coverage Database (NCDs and LCDs). Not medical or financial advice; verify with your plan.

Not appraisedSearch NICE
Notes
No UK marketing authorisation as of September 2026, so no NICE appraisal. Access only through a clinical trial or a company early access scheme.
NHS England
Not routinely funded

Sources: NICE search: cadonilimab. Funding decisions are indication-specific and change monthly; verify with NICE and your treating team.

Regulatory

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  1. 29 Jun 2022ApprovalChina

    First PD-1×CTLA-4 bispecific approved anywhere

  2. Sept 2024ApprovalChina

    First-line cervical cancer (COMPASSION-16) source

Approvals

RegionYearIndication
China2022Recurrent/metastatic cervical cancer after platinum
China2024First-line persistent/recurrent/metastatic cervical cancer with chemotherapy ± bevacizumab; first-line gastric cancer with chemotherapy

Safety

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Toxicity profile
Adverse eventAny gradeGrade 3+
Grade ≥3 treatment-related adverse events
82%
Immune-related adverse events, any grade
52%

COMPASSION-16 cadonilimab arm (mostly chemotherapy-related haematologic). Events listed without rates were not read from a primary source; see the label. Blank cells mean the figure was not sourced, not that it is zero.

Trials

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ClinicalTrials.gov · phase 2/3
refreshed 2026-09-09
154 studies41 recruiting93 Phase 27 Phase 3
Search “Cadonilimab” on ClinicalTrials.gov →
Counts are from a name search and may include unrelated studies; up to 100 studies are summarised.

Recruiting now (live from ClinicalTrials.gov)

Recruiting trials near you · live from ClinicalTrials.gov
Cadonilimab
intervention: Cadonilimab
Open on ClinicalTrials.gov →

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Landmark trials in OnCo

Latest papers

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Literature trend84 papers in the last 12 months+24% vs prior 12How this is computed
Latest papers · live from Europe PMC
Open in Europe PMC

Query for this drug: (TITLE:"Cadonilimab" OR ABSTRACT:"Cadonilimab" OR TITLE:"Kaitanni" OR ABSTRACT:"Kaitanni" OR TITLE:"AK104" OR ABSTRACT:"AK104") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about Cadonilimab, not a curated reading list.

Connected

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