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NCT05091346

A Study of E7386 in Combination With Pembrolizumab in Previously Treated Participants With Selected Solid Tumors

Completed Phase 1, PHASE2 Results posted Last updated 24 October 2025
What this trial tests

Phase 1, PHASE2 trial testing E7386 in Melanoma in 89 participants. Completed in 15 October 2024.

Timeline
27 October 2021
Primary endpoint
15 October 2024
15 October 2024

Quick facts

Lead sponsorEisai Inc.
PhasePhase 1, PHASE2
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designsequential
Maskingnone
Primary purposetreatment
Enrollment89
Start date27 October 2021
Primary completion15 October 2024
Estimated completion15 October 2024
Sites32 locations across United Kingdom, Japan, United States, Spain

Drugs / interventions tested

Conditions studied

Sponsor

Eisai Inc. — full company profile →

Who can join

18 and older, any sex, with Melanoma or Carcinoma, Hepatocellular. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Phase 1b Part: Number of Participants With Dose-limiting Toxicities (DLTs) Primary · Cycle 1 (Cycle length=21 days)

DLT was graded using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0 based on investigator assessment. DLT was defined as any of the hematological or non-hematological toxicities events that: - Failure to administer greater than or equal to (\>=) 75 percentage (%) of the planned dosage of E7386 as a result of treatment-related toxicity; - Any treatment-related toxicity that causes the participant to discontinue treatment, even if the toxicity does not meet DLT criteria; - Prolonged delay (greater than \[\>\] 2 weeks) in initiating Cycle 2 due to

GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg0
Phase 1b Part: Number of Participants With Treatment Emergent Adverse Events (TEAEs) Primary · Up to 30 days after last dose of study drug (up to 12.73 months)

A TEAE was defined as an adverse event (AE) that emerged during treatment, having been absent at pretreatment (Baseline) or reemerged during treatment, or up to 30 days following last dose of study drug, having been present at pretreatment (Baseline) but stopped before treatment, or worsened in severity during treatment or up to 30 days following last dose of study drug, relative to the pretreatment state, when the AE was continuous.

GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg6
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg6
Phase 1b Part: Number of Participants With Serious TEAEs Primary · Up to 90 days after last dose of study drug (up to 14.73 months)

An SAE was any untoward medical occurrence that at any dose: Resulted in death; Was life-threatening (i.e., the participant was at immediate risk of death from the AE as it occurred; this did not include an event that, had it occurred in a more severe form or was allowed to continue, might have caused death); Required inpatient hospitalization or prolongation of existing hospitalization; Resulted in persistent or significant disability/incapacity; Was a congenital anomaly/birth defect (in the child of a participant who was exposed to the study drug). An SAE was also counted as a TEAE if it eme

GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg2
Phase 2 Part: Objective Response Rate (ORR) Primary · Up to 20.40 months

ORR was defined as the percentage of participants achieving a best overall response of complete response (CR) or partial response (PR) as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. CR: Disappearance of all non-nodal target lesions and any pathological lymph nodes must have become normal (i.e., decrease in short axis to less than \[\<\] 10 millimeters \[mm\]). PR: At least a 30 percent (%) decrease in sum of the diameters (SOD) of target lesions, taking as reference the screening SOD. Additionally, progression of target lesions must not be present.

GroupValue95% CI
Phase 2, Dose Expansion, HCC: E7386 120 mg + Pembrolizumab 200 mg0.00.0 – 19.5
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg6.90.8 – 22.8
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg3.20.1 – 16.7
Phase 1b Part: Percentage of Participants With Best Overall Response (BOR) Secondary · Up to 11.73 months

BOR was defined as CR, PR, stable disease (SD), progressive disease (PD), and not applicable (NA)/not evaluable (NE) as per RECIST version 1.1. CR: Disappearance of all non-nodal target lesions and any pathological lymph nodes must have become normal (i.e., decrease in short axis to \<10 mm). PR: At least a 30% decrease in SOD of target lesions, taking as reference screening SOD. Additionally, progression of target lesions must not be present. SD: Neither sufficient shrinkage of target lesions to qualify for PR, nor sufficient increase to qualify for PD. PD: At least a 20% increase in the SOD

CR
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg0
PR
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg0
SD
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg83.3
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg33.3
PD
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg16.7
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg50.0
NA/NE
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg16.7
Phase 1b and Phase 2 Parts: Duration of Response (DOR) Secondary · Phase 1b Part: Up to 11.73 months; Phase 2 Part: Up to 20.40 months

DOR was defined as the time from the first documentation of CR or PR to the first documentation of PD or death due to any cause (whichever occurs first), in participants with confirmed CR or PR per RECIST 1.1. CR: Disappearance of all non-nodal target lesions and any pathological lymph nodes must have become normal (i.e., decrease in short axis to \<10 mm). PR: At least a 30% decrease in SOD of target lesions, taking as reference screening SOD. Additionally, progression of target lesions must not be present. SD: Neither sufficient shrinkage of target lesions to qualify for PR, nor sufficient i

GroupValue95% CI
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg14.112.4 – NA
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg7.5NA – NA
Phase 1b and Phase 2 Parts: Disease Control Rate (DCR) Secondary · Phase 1b Part: Up to 11.73 months; Phase 2 Part: Up to 20.40 months

DCR was defined as the percentage of participants who had a best overall response of confirmed CR or PR, or SD (after \>=5 weeks from the first dose) as per RECIST 1.1. CR: Disappearance of all non-nodal target lesions and any pathological lymph nodes must have become normal (i.e., decrease in short axis to \<10 mm). PR: At least a 30% decrease in SOD of target lesions, taking as reference screening SOD. Additionally, progression of target lesions must not be present. SD: Neither sufficient shrinkage of target lesions to qualify for PR, nor sufficient increase to qualify for PD. PD: At least a

GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg83.335.9 – 99.6
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg33.34.3 – 77.7
Phase 2, Dose Expansion, HCC: E7386 120 mg + Pembrolizumab 200 mg58.832.9 – 81.6
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg48.329.4 – 67.5
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg32.316.7 – 51.4
Phase 1b and Phase 2 Parts: Clinical Benefit Rate (CBR) Secondary · Phase 1b Part: Up to 11.73 months; Phase 2 Part: Up to 20.40 months

CBR was defined as the percentage of participants who had a best overall response of confirmed CR or PR, or durable SD (duration of SD \>=23 weeks) per RECIST 1.1. CR: Disappearance of all non-nodal target lesions and any pathological lymph nodes must have become normal (i.e., decrease in short axis to \<10 mm). PR: At least a 30% decrease in SOD of target lesions, taking as reference screening SOD. Additionally, progression of target lesions must not be present. SD: Neither sufficient shrinkage of target lesions to qualify for PR, nor sufficient increase to qualify for PD.

GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg16.70.4 – 64.1
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg16.70.4 – 64.1
Phase 2, Dose Expansion, HCC: E7386 120 mg + Pembrolizumab 200 mg11.81.5 – 36.4
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg13.83.9 – 31.7
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg16.15.5 – 33.7
Phase 2 Part: Number of Participants With TEAEs and Treatment-related TEAEs Secondary · Up to 30 days after last dose of study drug (up to 21.40 months)

A TEAE was defined as an AE that emerged during treatment, having been absent at pretreatment (Baseline) or reemerged during treatment, or up to 30 days following last dose of study drug, having been present at pretreatment (Baseline) but stopped before treatment, or worsened in severity during treatment or up to 30 days following last dose of study drug, relative to the pretreatment state, when the AE was continuous. Related TEAEs was defined as AE for which a causal relationship between the study drug and the AE was a reasonable possibility.

TEAEs
GroupValue95% CI
Phase 2, Dose Expansion, HCC: E7386 120 mg + Pembrolizumab 200 mg17
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg28
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg30
Treatment Related TEAEs
GroupValue95% CI
Phase 2, Dose Expansion, HCC: E7386 120 mg + Pembrolizumab 200 mg16
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg26
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg28
Phase 1b Part, Cmax: Maximum Observed Plasma Concentration for E7386 When Co-administered With Pembrolizumab Secondary · Cycle 1 Days 1 and 8: Pre-dose up to 12 hours post-dose (Cycle 1 length=21 days)

Cmax was defined as the maximum plasma concentration for E7386 when co-administered with Pembrolizumab. PK parameters were derived by noncompartmental analysis.

Cycle 1 Day 1
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg401± 232.0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg472± 82.1
Cycle 1 Day 8
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg386± 240.0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg706± 86.4
Phase 1b Part, Tmax: Time to Reach the Maximum Plasma Concentration for E7386 When Co-administered With Pembrolizumab Secondary · Cycle 1 Days 1 and 8: Pre-dose up to 12 hours post-dose (Cycle 1 length=21 days)

Tmax was defined as the time to reach maximum observed plasma concentration for E7386 when co-administered with Pembrolizumab. PK parameters were derived by noncompartmental analysis.

Cycle 1 Day 1
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg0.700.35 – 5.93
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg2.000.53 – 2.05
Cycle 1 Day 8
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg2.901.90 – 3.93
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg1.380.55 – 6.00
Phase 1b Part, AUC(0-t): Area Under the Plasma Concentration-time Curve From Zero (Pre-dose) to Time of Last Quantifiable Concentration for E7386 When Co-administered With Pembrolizumab Secondary · Cycle 1 Days 1 and 8: Pre-dose up to 12 hours post-dose (Cycle 1 length=21 days)

AUC(0-t) was defined as the area under the plasma concentration-time curve from 0 (pre-dose) to time of last quantifiable concentration for E7386 when co-administered with Pembrolizumab. PK parameters were derived by noncompartmental analysis.

Cycle 1 Day 1
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg874± 192.0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg1400± 52.5
Cycle 1 Day 8
GroupValue95% CI
Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg1830± 180.0
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg2540± 81.3

Adverse events — posted to ClinicalTrials.gov

Time frame: Non-serious: Up to 30 days after last dose of the study drug (up to 12.73 months for Phase 1b and up to 21.40 months for Phase 2); All-cause Mortality and SAEs: Up to 90 days after last dose of the study drug (up to 14.73 months for Phase 1b and 23.40 months for Phase 2). Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Phase 1b, Dose Escalation: E7386 100 mg + Pembrolizumab 200 mg
Serious: 0/6 (0%)
Deaths: 6/6
Phase 1b, Dose Escalation: E7386 120 mg + Pembrolizumab 200 mg
Serious: 2/6 (33%)
Deaths: 5/6
Phase 2, Dose Expansion, HCC: E7386 120 mg + Pembrolizumab 200 mg
Serious: 7/17 (41%)
Deaths: 8/17
Phase 2, Dose Expansion, Melanoma: E7386 120 mg + Pembrolizumab 200 mg
Serious: 5/29 (17%)
Deaths: 16/29
Phase 2, Dose Expansion, CRC: E7386 120 mg + Pembrolizumab 200 mg
Serious: 10/31 (32%)
Deaths: 26/31

Serious adverse events (24 terms)

ReactionSystemPhase 1b, Dose Escalation:…Phase 1b, Dose Escalation:…Phase 2, Dose Expansion, H…Phase 2, Dose Expansion, M…Phase 2, Dose Expansion, C…
PyrexiaGeneral disorders
Abdominal painGastrointestinal disorders
DysphagiaGastrointestinal disorders
Intestinal obstructionGastrointestinal disorders
Rectal haemorrhageGastrointestinal disorders
Upper gastrointestinal haemorrhageGastrointestinal disorders
General physical health deteriorationGeneral disorders
MalaiseGeneral disorders
Organ failureGeneral disorders
Hepatic function abnormalHepatobiliary disorders
Hepatic haemorrhageHepatobiliary disorders
Immune-mediated hepatitisHepatobiliary disorders
SepsisInfections and infestations
Septic shockInfections and infestations
UrosepsisInfections and infestations
Liver function test abnormalInvestigations
Diabetic ketoacidosisMetabolism and nutrition disorders
Brain oedemaNervous system disorders
Cerebrovascular accidentNervous system disorders
Urinary tract obstructionRenal and urinary disorders
PneumonitisRespiratory, thoracic and mediastinal disorders
Pulmonary embolismRespiratory, thoracic and mediastinal disorders
Respiratory failureRespiratory, thoracic and mediastinal disorders
HypotensionVascular disorders
Other adverse events (35 terms — click to expand)

ReactionSystemPhase 1b, Dose Escalation:…Phase 1b, Dose Escalation:…Phase 2, Dose Expansion, H…Phase 2, Dose Expansion, M…Phase 2, Dose Expansion, C…
VomitingGastrointestinal disorders
NauseaGastrointestinal disorders
ConstipationGastrointestinal disorders
AstheniaGeneral disorders
Decreased appetiteMetabolism and nutrition disorders
Abdominal painGastrointestinal disorders
DiarrhoeaGastrointestinal disorders
AnaemiaBlood and lymphatic system disorders
FatigueGeneral disorders
PyrexiaGeneral disorders
DysgeusiaNervous system disorders
Abdominal pain upperGastrointestinal disorders
Aspartate aminotransferase increasedInvestigations
Weight decreasedInvestigations
HypoalbuminaemiaMetabolism and nutrition disorders
Alanine aminotransferase increasedInvestigations
Blood alkaline phosphatase increasedInvestigations
Blood bilirubin increasedInvestigations
Gamma-glutamyltransferase increasedInvestigations
HyperglycaemiaMetabolism and nutrition disorders
ArthralgiaMusculoskeletal and connective tissue disorders
CoughRespiratory, thoracic and mediastinal disorders
DyspnoeaRespiratory, thoracic and mediastinal disorders
PruritusSkin and subcutaneous tissue disorders
Dry mouthGastrointestinal disorders
MalaiseGeneral disorders
Lipase increasedInvestigations
Back painMusculoskeletal and connective tissue disorders
DizzinessNervous system disorders
HeadacheNervous system disorders
ProteinuriaRenal and urinary disorders
Oedema peripheralGeneral disorders
Blood creatinine increasedInvestigations
OsteoporosisMusculoskeletal and connective tissue disorders
InsomniaPsychiatric disorders

Most-reported serious reactions: Pyrexia, Abdominal pain, Dysphagia, Intestinal obstruction, Rectal haemorrhage, Upper gastrointestinal haemorrhage, General physical health deterioration, Malaise.

Data from ClinicalTrials.gov NCT05091346 adverse events section.

Sponsor's own description

The Phase 1b part of this study is conducted to assess the safety and tolerability of E7386 in combination with pembrolizumab in participants with previously treated selected solid tumors, and to determine the recommended Phase 2 dose (RP2D) of E7386 in combination with pembrolizumab. The Phase 2 part of this study is conducted to assess the objective response rate (ORR) of E7386 in combination with pembrolizumab (melanoma, colorectal cancer \[CRC\], hepatocellular carcinoma \[HCC\]) or of E7386 in combination with pembrolizumab plus lenvatinib (HCC) according to Response Evaluation Criteria in Solid Tumors (RECIST) 1.1.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Hepatocellular carcinoma: signaling pathways and therapeutic advances.
    Zheng J, Wang S, Xia L, Sun Z, et al · · 2025 · cited 142× · PMID 39915447 · DOI 10.1038/s41392-024-02075-w
  2. WNT signaling and cancer stemness.
    Katoh M, Katoh M. · · 2022 · cited 122× · PMID 35837811 · DOI 10.1042/ebc20220016
  3. WNT/β-catenin signaling in hepatocellular carcinoma: The aberrant activation, pathogenic roles, and therapeutic opportunities.
    Gajos-Michniewicz A, Czyz M. · · 2024 · cited 56× · PMID 37692481 · DOI 10.1016/j.gendis.2023.02.050
  4. Wnt/β-catenin mediated signaling pathways in cancer: recent advances, and applications in cancer therapy.
    Wu X, Que H, Li Q, Wei X. · · 2025 · cited 33× · PMID 40495229 · DOI 10.1186/s12943-025-02363-1
  5. Hepatocellular Carcinoma: Old and Emerging Therapeutic Targets.
    Pessino G, Scotti C, Maggi M, Immuno-Hub Consortium. · · 2024 · cited 29× · PMID 38473265 · DOI 10.3390/cancers16050901
  6. New Era of Immune-Based Therapy in Intrahepatic Cholangiocarcinoma.
    Kawamura E, Matsubara T, Kawada N. · · 2023 · cited 19× · PMID 37568808 · DOI 10.3390/cancers15153993
  7. Why Is Wnt/β-Catenin Not Yet Targeted in Routine Cancer Care?
    de Pellegars-Malhortie A, Picque Lasorsa L, Mazard T, Granier F, et al · · 2024 · cited 12× · PMID 39065798 · DOI 10.3390/ph17070949
  8. Current Landscape and Potential Challenges of Immune Checkpoint Inhibitors in Microsatellite Stable Metastatic Colorectal Carcinoma.
    San-Román-Gil M, Torres-Jiménez J, Pozas J, Esteban-Villarrubia J, et al · · 2023 · cited 12× · PMID 36765821 · DOI 10.3390/cancers15030863

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Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT05091346.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing