OnCo
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Serplulimab

Serplulimab is a Chinese PD-1 antibody with the largest survival gain of any first-line small-cell lung cancer immunotherapy trial, approved in China, Europe, and the UK but not yet the US.

ASTRUM-005: OS 15.4 vs 10.9 months with carboplatin-etoposide. Approved in China (2022, first PD-1 for ES-SCLC), EU (2025), UK, India, Korea. US bridging trial versus atezolizumab (ASTRIDE) fully enrolled; FDA decision pending. Henlius, with Accord in Europe.

Schematic of the modality · Monoclonal antibody (anti-PD-1) · not a molecule; see the Immune checkpoint inhibitors page
How it works, step by step · animated schematic, not to scale
Immune checkpoint inhibitors
Mechanism, step by step
auto-advancing · hover to pause

1.Binds PD-1 on exhausted T cells

Modality
Monoclonal antibody (anti-PD-1)
Mechanism
Humanised IgG4 anti-PD-1.
Brand / code
Hansizhuang / Hetronifly · HLX10
Dosing & schedule
Route
Intravenous
Schedule
4.5 mg/kg every 3 weeks with carboplatin-etoposide, then maintenance until progression or 2 years
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 yet researchedSearch NICE
Notes
MHRA-licensed 2025 for extensive-stage SCLC; NICE position not yet researched.

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

Regulatory

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  1. Feb 2025ApprovalEU

    European Commission approval for ES-SCLC source

  2. 2025ApprovalUK

    MHRA approval source

Approvals

RegionYearIndication
China2022First-line ES-SCLC with chemotherapy
EU2025First-line ES-SCLC with carboplatin-etoposide

Safety

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Toxicity profile
Adverse eventAny gradeGrade 3+
Immune-related adverse events (any)
37%
Hypothyroidism
12%
Pneumonitis
4%

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
125 studies38 recruiting91 Phase 214 Phase 3
Search “Serplulimab” 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
Serplulimab
intervention: Serplulimab
Open on ClinicalTrials.gov →

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Landmark trials in OnCo

Latest papers

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Literature trend53 papers in the last 12 months+83% vs prior 12How this is computed
Latest papers · live from Europe PMC
Open in Europe PMC

Query for this drug: (TITLE:"Serplulimab" OR ABSTRACT:"Serplulimab" OR TITLE:"Hansizhuang" OR ABSTRACT:"Hansizhuang" OR TITLE:"Hetronifly" OR ABSTRACT:"Hetronifly" OR TITLE:"HLX10" OR ABSTRACT:"HLX10") 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 Serplulimab, not a curated reading list.

Connected

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