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TAK-676

Phase 1

Carcinoma, Non-Small-Cell Lung | Small molecule | Oncology |Takeda Pharmaceutical Company Limited|Trials Updated: Apr 8, 2026

TAK-676 development status

Highest phase Phase 1
Registered trials 3 across 2 sponsors since Jun 2020

TAK-676 target and mechanism

Molecular targetSTING
Target classProtein
ModalitySmall molecule

Also known as Dazostinag

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDBiomarker
Total Trials3
Total Enrollment297

FDA Designations

No designations recorded

TAK-676 clinical trials

TAK-676 · 3 trials · 5 indications

Phase 1 2Early Phase 1 1
NCT04879849A Study of TAK-676 With Pembrolizumab After Radiation Therapy to Treat a Number of CancersCarcinoma, Non-Small-Cell Lung
COMPLETED34 Analytics
NCT04420884A Study of Dazostinag as Single Agent and Dazostinag in Combination With Pembrolizumab in Adults With Advanced or Metastatic Solid TumorsSolid Neoplasms
COMPLETED248 Analytics
PHASE1COMPLETED
A Study of TAK-676 With Pembrolizumab After Radiation Therapy to Treat a Number of Cancers
Carcinoma, Non-Small-Cell LungUnlock trial analytics
PHASE1COMPLETED
A Study of Dazostinag as Single Agent and Dazostinag in Combination With Pembrolizumab in Adults With Advanced or Metastatic Solid Tumors
Solid NeoplasmsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Reporting One or More Treatment-emergent Adverse Events (TEAEs) and Based on TEAEs Severity
From first dose of study drug administration up to 32 months

AE: any untoward medical occurrence in participants administered a pharmaceutical product that does not necessarily have a causal relationship with this treatment. TEAE: any AE either reported for the first time or worsening of a pre-existing event after the first dose of study drug is considered treatment emergent. Severity grade is defined by the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 5.0. Grade 1: Mild (asymptomatic/mild symptoms; clinical/diagnostic observations only; intervention not indicated); Grade 2: Moderate (minimal, local/noninvasive intervention indicated; limiting age-appropriate instrumental activities of daily living \[ADL\]); Grade 3: Severe (severe/medically significant but not immediately life-threatening hospitalization/prolongation of hospitalization indicated; disabling; limiting self-care ADL); Grade 4: Life-threatening consequences, urgent intervention indicated; Grade 5: Death related to AE.

Number of Participants With Dose-limiting Toxicities (DLTs)
During Cycle 1 (cycle length= 21 days)

A DLT was defined as any TEAE that occurred during Cycle 1 and was considered by investigator to be at least possibly related to TAK-676 in combination with pembrolizumab. TEAEs meeting DLT definitions occurring in later cycles were considered in the determination of recommended phase 2 dose (RP2D) of TAK-676. DLTs were assessed based on NCI CTCAE version 5.0.

Number of Participants Reporting One or More Treatment Emergent Serious Adverse Events (TESAEs)
From first dose of study drug administration up to 32 months

TEAE: any AE either reported for the first time or worsening of a pre-existing event after the first dose of study drug is considered treatment emergent. An SAE is defined as any untoward medical occurrence that: 1) results in death, 2) is life-threatening, 3) requires inpatient hospitalization or prolongation of existing hospitalization, 4) results in persistent or significant disability/incapacity, 5) leads to a congenital anomaly/birth defect in the offspring of the participant or 6) is a medically important event that satisfies any of the following: a) may require intervention to prevent items 1 through 5 above. b) may expose the participant to danger, even though the event is not immediately life threatening or fatal or does not result in hospitalization

Number of Participants With One or More TEAEs Leading to Dose Modifications
From first dose of study drug administration up to 32 months

TEAE: Any AE either reported for the first time or worsening of a pre-existing event after the first dose of study drug is considered treatment emergent.

Number of Participants With One or More TEAEs Leading to Treatment Discontinuation
From first dose of study drug administration up to 32 months

TEAE: Any AE either reported for the first time or worsening of a pre-existing event after the first dose of study drug is considered treatment emergent.

Number of Participants Reporting One or More Treatment Emergent Serious Adverse Event (SAEs)
Up to approximately 68 months
Number of Participants With one or More TEAEs Leading to Dose Modifications and Treatment Discontinuations
Up to approximately 68 months
Quantification of Cell Death and Immune Cell Biomarkers by immuno-histochemistry (IHC) and In-Situ Hybridization (ISH)
4 hours - 4 days after microdose injection

Quantification of biomarker-positive and biomarker-negative cells will be performed within the tumor microenvironment around each of the injection sites in each resected patient sample by IHC and ISH. An aggregate analysis of this quantification may be done across patient samples in each substudy to evaluate trends in tumor response. The biomarkers evaluated may include, but are not limited to, biomarkers for cell death (e.g., cleaved caspase 3), T-cells (e.g., Cluster of Differentiation 3 (CD3), Cluster of Differentiation 8/Granzyme B, Cluster of Differentiation), natural killer (NK)/myeloid cells (e.g., Cluster of Differentiation 56/Granzyme B, Cluster of Differentiation 86, Cluster of Differentiation 68, Cluster of Differentiation 163), and proinflammatory cytokines (e.g., interferon gamma, tumor necrosis factor alpha, interferon gamma-induced protein 10).

Secondary Endpoints

Overall Response Rate (ORR) Assessed by Investigator as Per RECIST v1.1
Up to 32 months
Duration of Response (DOR) For All Tumor Lesions Assessed by Investigator as Per RECIST v1.1
Up to 32 months
Time to Response (TTR) For All Tumor Lesions Assessed by Investigator as Per RECIST v1.1
Up to 32 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Combination Dose Escalation Phase: Radiation + Pembrolizumab + TAK-676EXPERIMENTALParticipants will receive image-guided radiation therapy between Day -8 and Day -2. Participants will then receive pembrolizumab 200 milligram (mg), infusion, intravenously (IV), once on Day 1 of Cycle 1 and then every 3 weeks in each 21-day treatment cycle, followed by TAK-676 infusion with escalating doses (0.2 mg and above), IV, once on Days 1, 8, 15 in each 21-day treatment cycle until disease progression, intolerance to pembrolizumab or TAK-676 or withdrawal of consent, whichever occurs first.
Part 1 (Monotherapy Dose Escalation Phase): Dazostinag Safety Lead-in + Dazostinag SA [Part 1A]EXPERIMENTALSafety Lead-in: Dazostinag 0.1 mg, infusion, intravenously (IV), once weekly, on Days 1, 8 and 15 in 21-day treatment cycles. Dazostinag SA Dose Escalation (Part 1A): Dazostinag single agent (SA), infusion, IV, once weekly on Days 1, 8 and 15 in each 21-day treatment cycles with escalating doses (0.2 mg and above). The dosing will be initiated in the Dazostinag SA Dose Escalation Phase based on the available safety and tolerability data from the Safety Lead-in.
Part 1B (Combination Dose Escalation Phase): Dazostinag + PembrolizumabEXPERIMENTALDazostinag escalating doses (0.2 mg and above) in combination with pembrolizumab 200 mg, infusion, IV, once weekly on Days 1, 8 and 15 in each 21-day treatment cycle. Pembrolizumab 200 mg will be administered 1 hour prior to Dazostinag once every 3 weeks (Q3W). The dosing will be initiated when at least two dose levels (DLs) of Part 1A have been evaluated.
Arm A: Japan Safety Lead-in Dazostinag + PembrolizumabEXPERIMENTALDazostinag 5.0 mg, infusion, IV, in Japanese participants with advanced or metastatic solid tumors on Days 1, 8, and 15 in each 21-day cycle in combination with pembrolizumab 200 mg administered Q3W, IV, on Day 1 in each 21-day cycle. Additional dose levels of Dazostinag (such as 14.0 mg) in combination with pembrolizumab (200 mg, Q3W) may be explored in the Safety Lead-in.
Arm B: Japan Safety Lead-in Dazostinag Transitioned to PembrolizumabEXPERIMENTALDazostinag 5.0 mg, infusion, IV, as an SA once on Day 1 in Cycle 0 (cycle length=7 days) in Japanese participants with advanced or metastatic solid tumors based on confirmation of tolerability in Arm A. Following Cycle 0 (7 days), participants will be transitioned to the same dose level of dazostinag on Days 1, 8, and 15 of each 21-day cycle in combination with pembrolizumab administered Q3W, IV, on Day 1 in each 21-day cycle. Additional dose levels of dazostinag (such as ≥ 7.0 mg) in combination with pembrolizumab (200 mg, Q3W) may be explored in the Safety Lead-in.
Part 2A (SCCHN CPS ≥ 1 Dose Expansion and Optimization Phase): Dazostinag + PembrolizumabEXPERIMENTALDazostinag 5.0 mg, infusion, IV, will be administered in participants with squamous cell carcinoma of head and neck (SCCHN) at the identified dose level from Part 1 on Days 1, 8, and 15 in a 21-day cycle along with pembrolizumab 200 mg infusion, IV, Q3W. Dose optimization may be performed in this phase.
Part 2B (SCCHN Dose Expansion Phase): Dazostinag + Pembrolizumab + ChemotherapyEXPERIMENTALDazostinag 5.0 mg, infusion, IV, will be administered in participants with SCCHN at the identified dose level from Part 1 on Days 1, 8, and 15 in a 21-day cycle. Pembrolizumab infusion, IV will be administered at 200 mg Q3W. Platinum-based chemotherapy comprising the combination of carboplatin (target area under the curve of 5 milligrams per milli Liters per minute (mg/mL/minute) \[AUC 5\]) or cisplatin (100 milligrams per square meter \[mg/m\^2\] Day 1 of each treatment cycle), and 5-fluorouracil (\[5-FU\]; 1000 mg/m\^2 per day for 4 consecutive days) Q3W for up to 6 cycles.
Part 3A (Expansion Phase in CRC): Dazostinag + Pembrolizumab in MSI-H/dMMR CRCEXPERIMENTALDazostinag 5.0 mg, infusion, IV, will be administered in participants with microsatellite instability-high /mismatch repair deficient (MSI-H/dMMR) colorectal cancer (CRC) at the identified dose level from Part 1 on Days 1, 8, and 15 in a 21-day cycle along with pembrolizumab 200 mg infusion, IV, Q3W.
Part 3B (Expansion Phase in CRC): Dazostinag + Pembrolizumab in MSS/pMMR CRCEXPERIMENTALDazostinag 5.0 mg, infusion, IV, will be administered in participants with microsatellite stable/mismatch repair proficient (MSS/pMMR) CRC at the identified dose level from Part 1 on Days 1, 8, and 15 in a 21-day cycle. along with pembrolizumab 200 mg infusion, IV, Q3W.
TAK-676, Carboplatin, 5-FU, & PaclitaxelEXPERIMENTALPatients who are scheduled for surgical biopsy or tumor resection surgery will be injected at least four hours to up to four days prior to surgery using the CIVO device. Each needle of the CIVO device will deliver up to 8.3 microliters of solution, including a vehicle control (sterile saline) or subtherapeutic microdoses of TAK-676, carboplatin, 5-fluorouracil (5- FU), or paclitaxel as single agents or in combination. Each microdose is simultaneously injected in a columnar fashion through each of 8, 5, or 3 needles (in a device configuration determined by tumor dimensions) into a single solid tumor or effaced metastatic lymph node.

Interventions

NameTypeDescription
PembrolizumabDRUGIV infusion.
TAK-676DRUGIV infusion.
Image-guided radiation therapyRADIATIONRadiation therapy.
DazostinagDRUGDazostinag intravenous infusion.
PlatinumDRUGCarboplatin or Cisplatin intravenous infusion
5-fluorouracilDRUG5-fluorouracil intravenous infusion
CarboplatinDRUGIntratumoral microdose injection by the CIVO device.
5-FUDRUGIntratumoral microdose injection by the CIVO device.
PaclitaxelDRUGIntratumoral microdose injection by the CIVO device.
TAK-676 + CarboplatinCOMBINATION_PRODUCTIntratumoral microdose injection by the CIVO device.
Carboplatin + PaclitaxelCOMBINATION_PRODUCTIntratumoral microdose injection by the CIVO device.
Carboplatin + 5-FUCOMBINATION_PRODUCTIntratumoral microdose injection by the CIVO device.
TAK-676 + Carboplatin + 5-FUCOMBINATION_PRODUCTIntratumoral microdose injection by the CIVO device.
TAK-676 + Carboplatin + PaclitaxelCOMBINATION_PRODUCTIntratumoral microdose injection by the CIVO device.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: 1. Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. 2. Participants must have at least 2 measurable lesions (i.e. ≥10 mm longest diameter for extranodal lesions, ≥15 mm short axis for lymph nodes), with at least one inside and at least one other outside of...

Countries:United StatesAustriaCanadaChinaFranceIsraelJapanPolandPuerto RicoSwitzerlandUnited Kingdom
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Frequently asked questions about TAK-676

What is TAK-676?

TAK-676 is an investigational small molecule developed by Takeda Pharmaceutical Company Limited. It is being studied in oncology for the treatment of solid tumors, including non-small cell lung carcinoma and head and neck squamous cell carcinoma. It remains in clinical development and is not an approved therapy.

What does TAK-676 target?

TAK-676 targets STING, a protein that plays a central role in activating the innate immune response. By acting on STING, the drug is designed to stimulate immune signaling within the tumor microenvironment. This mechanism is being evaluated in patients with advanced solid tumors.

Who makes TAK-676?

TAK-676 is being developed by Takeda Pharmaceutical Company Limited, which trades on the New York Stock Exchange under the ticker TAK. Takeda is the sponsor of the clinical studies evaluating the compound in solid tumors, including non-small cell lung carcinoma and head and neck squamous cell carcinoma.

What phase is TAK-676 in?

TAK-676 is in Phase 1 clinical development. It is an investigational agent and has not been approved by the FDA for any indication. Testing so far has focused on early-stage studies in solid tumors, including a Phase 1 trial combining the drug with pembrolizumab after radiation therapy.

What clinical trials is TAK-676 in?

TAK-676 has been studied in two registered trials. NCT04879849 was a Phase 1 study of TAK-676 with pembrolizumab after radiation therapy in several cancers, enrolling 34 patients. NCT06062602 was an early Phase 1 intratumoral microdosing substudy in head and neck squamous cell carcinoma, enrolling 15 patients. Both are completed.

What is TAK-676 used for in head and neck squamous cell carcinoma?

TAK-676 is being evaluated as an investigational treatment for head and neck squamous cell carcinoma. A completed early Phase 1 substudy, NCT06062602, examined intratumoral microdosing of TAK-676 in this cancer type. The compound has also been studied in head and neck squamous cell carcinoma alongside other solid tumors.