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CHS-114

Phase 1

Advanced Solid Tumor | Small molecule | Oncology |Coherus Oncology, Inc.|Last Updated: Aug 12, 2026

Target and mechanism

Molecular targetCCR8
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment87

FDA Designations

No designations recorded

Clinical trial landscape

CHS-114 · 2 trials · 3 indications

Phase 1 2
NCT06657144A Study of CHS-114 (Tagmokitug) in Combination With Toripalimab and/or Other Treatments in Participants With Advanced Solid TumorsMetastatic Solid Tumor
RECRUITING154 Analytics
NCT05635643Study of CHS-114 in Participants With Advanced Solid TumorsAdvanced Solid Tumor
ACTIVE NOT_RECRUITING87 Analytics
PHASE1RECRUITING
A Study of CHS-114 (Tagmokitug) in Combination With Toripalimab and/or Other Treatments in Participants With Advanced Solid Tumors
Metastatic Solid TumorUnlock trial analytics
PHASE1ACTIVE NOT_RECRUITING
Study of CHS-114 in Participants With Advanced Solid Tumors
Advanced Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants With Treatment-emergent Adverse Events (TEAEs)
From first dose of study drug until 90 days after the last dose of study drug (up to approximately 2.25 years)
[Arms 1a, 1b, and 2] Rate of Dose Limiting Toxicity (DLT)
Assessed during first 21 days of treatment

Evaluation of rate of DLT of CHS-114 as a monotherapy, or in combination with toripalimab

[Arm 2] Summary of adverse events (AEs) based on treatment emergent AEs (TEAEs), anti-drug antibodies (ADA), and laboratory values.
Up to 24 months

Safety and tolerability of CHS-114 in combination with toripalimab,

[Arm 3] Safety and tolerability of CHS-114 in combination with toripalimab will be assessed by summarizing AEs and will be based on TEAEs as assessed by Common Terminology Criteria for Adverse Events (CTCAE) v5.0 or higher.
Up to 24 months

Safety and tolerability of CHS-114 in combination with toripalimab

Secondary Endpoints

Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 Based on Investigator Assessment
Up to approximately 2.25 years
Duration of Response (DOR) Per RECIST v1.1 Based on Investigator Assessment
Up to approximately 2.25 years
Disease Control Rate (DCR) Per RECIST v1.1 Based on Investigator Assessment
Up to approximately 2.25 years
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort A - Arm A1: CHS-114 Dose A + ToripalimabEXPERIMENTALParticipants will be treated with dose A of CHS-114 administered as an intravenous (IV) infusion in combination with toripalimab every 3 weeks (Q3W).
Cohort A - Arm A2: CHS-114 Dose B + ToripalimabEXPERIMENTALParticipants will be treated with dose B of CHS-114 administered as an IV infusion in combination with toripalimab Q3W.
Cohort B - Arm B1: CHS-114 Dose A + ToripalimabEXPERIMENTALParticipants will be treated with dose A of CHS-114 administered as an IV infusion in combination with toripalimab Q3W.
Cohort B - Arm B2: CHS-114 Dose B + ToripalimabEXPERIMENTALParticipants will be treated with dose B of CHS-114 administered as an IV infusion in combination with toripalimab Q3W.
Cohort C - Arm C: CHS-114 Dose B + Toripalimab + 5 fluorouracil (5 FU) + CisplatinEXPERIMENTALParticipants will be treated with dose B of CHS-114 administered as an IV infusion in combination with toripalimab, 5 FU, and cisplatin Q3W.
Experimental: Cohort D - Arm D1 (Liver Mets): CHS-114 + ToripalimabEXPERIMENTALParticipants will be treated with CHS-114 administered as an IV infusion in combination with toripalimab Q3W.
Experimental: Cohort D - Arm D2 (Non-Liver Mets): CHS-114 + ToripalimabEXPERIMENTALParticipants will be treated with CHS-114 administered as an IV infusion in combination with toripalimab Q3W.
Arm 1a: CHS-114 Dose EscalationEXPERIMENTALArm 1 monotherapy dose escalation portion of the study will evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary efficacy of CHS-114 as monotherapy in up to 25 participants with advanced solid tumors, to determine the recommended dose for expansion (RDE).
Arm 1b: CHS-114 Dose ExpansionEXPERIMENTALArm 1b monotherapy expansion will evaluate the safety, tolerability, PK, pharmacodynamics, and efficacy of CHS-114 monotherapy at 2 dose levels (potential recommended dose for expansion RDE in up to 5 participants in each dose level with Head and Neck Squamous Cell Carcinoma (HNSCC).
Arm 2: CHS-114 + toripalimab Dose EscalationEXPERIMENTALArm 2 dose escalation will evaluate the safety, tolerability, PK, pharmacodynamics, and efficacy of CHS-114 in combination with toripalimab at 2 RDE levels in up to 6 participants in each dose level with HNSCC.
Arm 3: CHS-114 + toripalimab Dose ExpansionEXPERIMENTALArm 3 dose expansion will evaluate the safety, tolerability, PK, pharmacodynamics, and efficacy of CHS-114 in combination with toripalimab at 2 RDE levels in up to 20 participants in each dose level with HNSCC.

Interventions

NameTypeDescription
CHS-114DRUGSolution for infusion
ToripalimabDRUGSolution for infusion
5 FluorouracilDRUGSolution for infusion
CisplatinDRUGSolution for infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites30

Key Inclusion Criteria: * At least 1 measurable lesion based on RECIST v1.1 as determined by the Investigator. * Resolved acute effects of any prior therapy to baseline severity or Grade 1 in accordance with National Cancer Institute (NCI)-Common Terminology Criteria for Adverse Events (CTCAE) v5.0...

Countries:United StatesTaiwan
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumor")

Recent Changes (Last 90 Days)

MEDIUMAug 12, 2026NCT05635643Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 12, 2026NCT05635643Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJul 15, 2026NCT06657144lastUpdatePostDate: changed
LOWJul 15, 2026NCT06657144lastUpdatePostDate: changed
LOWJul 14, 2026NCT05635643lastUpdatePostDate: changed
LOWJul 14, 2026NCT05635643lastUpdatePostDate: changed
LOWJul 6, 2026NCT05635643lastUpdatePostDate: changed
LOWJul 6, 2026NCT05635643lastUpdatePostDate: changed

Frequently asked questions about CHS-114

What is CHS-114 used for?

CHS-114 is an investigational small molecule being studied for the treatment of advanced solid tumors and metastatic solid tumors, including head and neck squamous cell carcinoma. It is currently in Phase 1 clinical development and is not yet approved by the FDA.

What does CHS-114 target?

CHS-114 targets CCR8, a protein involved in immune regulation within the tumor microenvironment. By targeting CCR8, CHS-114 is being evaluated as a potential therapy for advanced solid tumors, though its exact mechanism of action is still under investigation in clinical trials.

Who makes CHS-114?

CHS-114 is being developed by Coherus Oncology, Inc., a subsidiary of Coherus BioSciences (NASDAQ: CHRS). The company is conducting Phase 1 clinical trials to evaluate the drug's safety and efficacy in patients with advanced solid tumors.

What phase is CHS-114 in?

CHS-114 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. Two Phase 1 trials are currently listed as active, with one actively recruiting participants and the other no longer recruiting.

What clinical trials is CHS-114 in?

CHS-114 is being studied in two Phase 1 trials. NCT05635643 evaluates CHS-114 alone in advanced solid tumors and head and neck squamous cell carcinoma. NCT06657144 studies CHS-114 (also known as Tagmokitug) in combination with toripalimab and/or other treatments in advanced or metastatic solid tumors.

Is CHS-114 the same as Tagmokitug?

Yes, CHS-114 is also known as Tagmokitug. In clinical trial NCT06657144, the drug is referred to as CHS-114 (Tagmokitug), confirming that these names refer to the same investigational small molecule being developed for advanced solid tumors.