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NCT04144140

Study of Intratumorally Administered Stimulator of Interferon Genes (STING) Agonist E7766 in Participants With Advanced Solid Tumors or Lymphomas - INSTAL-101

Terminated Phase 1 Results posted Last updated 7 March 2024
What this trial tests

Phase 1 trial testing E7766 in Lymphoma in 24 participants. Terminated before completion.

Timeline
24 February 2020
Primary endpoint
26 July 2022
26 July 2022

Quick facts

Lead sponsorEisai Inc.
PhasePhase 1
StatusTerminated
Study typeINTERVENTIONAL
Allocationnon randomized
Designsequential
Maskingnone
Primary purposetreatment
Enrollment24
Start date24 February 2020
Primary completion26 July 2022
Estimated completion26 July 2022
Sites13 locations across France, United Kingdom, South Korea, United States, Spain

Drugs / interventions tested

Conditions studied

Sponsor

Eisai Inc. — full company profile →

Who can join

18 and older, any sex, with Lymphoma or Advanced Solid Tumors. 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.

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

DLTs were predefined as any of the following toxicities occurring during Cycle 1 and were assessed by the investigator according to National Cancer Institute \[NCI\] Common Terminology Criteria for Adverse Events \[CTCAE\] version (v) 5.0. as related to E7766. Nonhematologic toxicity greater than or equal to (\>=) Grade 3 (NCI CTCAE v. 5.0), except Grade 3 fatigue less than (\<) 5 days. Asymptomatic Grade 3 or 4 laboratory abnormalities that were corrected within 72 hours. \>=Grade 3 nausea, vomiting, and diarrhea unless lasting greater than (\>) 48 hours despite optimal supportive care. Hemat

GroupValue95% CI
Dose Escalation Part: E7766 75 mcg0
Dose Escalation Part: E7766 150 mcg0
Dose Escalation Part: E7766 300 mcg0
Dose Escalation Part: E7766 600 mcg2
Dose Escalation Part: E7766 780 mcg1
Number of Participants With Any Treatment-emergent Adverse Events (TEAEs) Primary · From the first dose of the study drug up to 90 days after the last dose (up to 9 months and 14 days)

A TEAE was defined as an adverse event (AE) that emerges during treatment (on or after the first dose of study drug up to 90 days after the participant's last dose) or start day of another anticancer therapy, whichever is earlier; or in case participant has initiated new anticancer therapy within 30 days, then AEs occurring for 30 days following the last dose of E7766, having been absent at pretreatment (Baseline) or reemerges during treatment, having been present at pretreatment (Baseline) but stopped before treatment, or worsens in severity during treatment relative to the pretreatment state

GroupValue95% CI
Dose Escalation Part: E7766 75 mcg2
Dose Escalation Part: E7766 150 mcg2
Dose Escalation Part: E7766 300 mcg2
Dose Escalation Part: E7766 600 mcg11
Dose Escalation Part: E7766 780 mcg6
Dose Escalation Part: E7766 1000 mcg1
Dose Escalation Part: ORR Based on iRECIST Secondary · From date of first dose of study drug until confirmed iCR or iPR (up to 6 months and 18 days)

ORR was defined as the percentage of participants whose BOR was iCR or iPR according to iRECIST as per investigator assessment. iCR: immune complete response achieved with disappearance of all target lesions iCPD: immune confirmed progressive disease when there is either 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions iSD: immune stable disease in the absence of iCR or iPD iUPD: immune unconfirmed progressive disease when iPD is unconfirmed NE: not evaluable.

GroupValue95% CI
Dose Escalation Part: E7766 75 mcg0
Dose Escalation Part: E7766 150 mcg0
Dose Escalation Part: E7766 300 mcg0
Dose Escalation Part: E7766 600 mcg0
Dose Escalation Part: E7766 780 mcg0
Dose Escalation Part: E7766 1000 mcg0
Dose Escalation Part: ORR Based on mRECIST v1.1 Secondary · From date of first dose of study drug until confirmed CR or PR (up to 6 months and 18 days)

ORR was defined as the percentage of participants with a BOR of CR or PR for target and non-target lesions. CR was defined as the disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (target or non-target) had to be reduced in the short axis to less than 10 mm. PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum of diameters. The tumor assessment was done using number of lesions based on modified RECIST 1.1 as per investigator assessment for assessing tumor burden up to 10 target lesions w

GroupValue95% CI
Dose Escalation Part: E7766 75 mcg0
Dose Escalation Part: E7766 150 mcg0
Dose Escalation Part: E7766 300 mcg0
Dose Escalation Part: E7766 600 mcg0
Dose Escalation Part: E7766 780 mcg0
Dose Escalation Part: E7766 1000 mcg0
Dose Escalation Part: DCR Based on iRECIST Secondary · From first dose of study drug until confirmed iCR or iPR or >=5 weeks after first dose for iSD (up to 6 months and 18 days)

DCR: percentage of participants with a confirmed iCR, iPR, or i-SD (duration of iSD \>=5 weeks). DCR was assessed on iRECIST v1.1 as per investigator assessment. iCR: immune complete response achieved with disappearance of all target lesions iCPD: immune confirmed progressive disease when there is either 20% increase in the sum of the longest diameter of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions iSD: immune stable disease in the absence of iCR or iPD iUPD: immune unconfirmed progressive disease when iPD is unconfirmed NE: not evaluable.

GroupValue95% CI
Dose Escalation Part: E7766 75 mcg100.0
Dose Escalation Part: E7766 150 mcg0.0
Dose Escalation Part: E7766 300 mcg50.0
Dose Escalation Part: E7766 600 mcg36.4
Dose Escalation Part: E7766 780 mcg16.7
Dose Escalation Part: E7766 1000 mcg0.0
Dose Escalation Part: DCR Based on mRECIST v1.1 Secondary · From first dose of study drug until confirmed CR or PR or >=5 weeks after first dose for SD (up to 6 months and 18 days)

DCR was defined as the percentage of participants with a best overall response of CR or PR, or SD based on mRECIST 1.1 as per investigator assessment. Best overall response of SD must have been \>=7 weeks after randomization. CR was defined as disappearance of any intratumoral arterial enhancement in all target lesions. PR was defined as at least a 30% decrease in the sum of diameters of viable (enhancement of arterial phase) target lesions taking as reference the baseline sum of the diameters of target lesions. SD was when a case does not qualify for either PR or PD and was new non-target les

GroupValue95% CI
Dose Escalation Part: E7766 75 mcg100.0
Dose Escalation Part: E7766 150 mcg0.0
Dose Escalation Part: E7766 300 mcg50.0
Dose Escalation Part: E7766 600 mcg36.4
Dose Escalation Part: E7766 780 mcg16.7
Dose Escalation Part: E7766 1000 mcg0.0
Cmax: Maximum Observed Plasma Concentration for E7766 Secondary · Dose Escalation: Cycle 1 Days 1 and 15: predose and up to 24 hours postdose; Dose Expansion: Cycle 1 Days 1 and 15: predose up to 2 hours postdose (Cycle length=21 days)

Cmax was quantified using liquid chromatography tandem mass spectrometry (LC-MS/MS) methods.

Cycle 1 Day 1
GroupValue95% CI
Dose Escalation Part: E7766 75 mcg4.23± 87.4
Dose Escalation Part: E7766 150 mcg2.77± 7.16
Dose Escalation Part: E7766 300 mcg2.95± 9.85
Dose Escalation Part: E7766 600 mcg8.03± 95.8
Dose Escalation Part: E7766 780 mcg11.3± 30.6
Dose Escalation Part: E7766 1000 mcg9.99± NA
Cycle 1 Day 15
GroupValue95% CI
Dose Escalation Part: E7766 75 mcg1.29± 22.7
Dose Escalation Part: E7766 150 mcg2.23± 58.1
Dose Escalation Part: E7766 300 mcg4.53± NA
Dose Escalation Part: E7766 600 mcg2.72± 168
Dose Escalation Part: E7766 780 mcg9.33± 34.8
Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) for E7766 Secondary · Dose Escalation: Cycle 1 Days 1 and 15: predose and up to 24 hours postdose; Dose Expansion: Cycle 1 Days 1 and 15: predose up to 2 hours postdose (Cycle length=21 days)

Tmax was quantified using validated liquid LC-MS/MS methods.

Cycle 1 Day 1
GroupValue95% CI
Dose Escalation Part: E7766 75 mcg0.2750.25 – 0.3
Dose Escalation Part: E7766 150 mcg0.310.27 – 0.35
Dose Escalation Part: E7766 300 mcg0.2750.25 – 0.3
Dose Escalation Part: E7766 600 mcg0.250.2 – 0.52
Dose Escalation Part: E7766 780 mcg0.250.2 – 0.28
Dose Escalation Part: E7766 1000 mcg0.280.28 – 0.28
Cycle 1 Day 15
GroupValue95% CI
Dose Escalation Part: E7766 75 mcg0.2150.18 – 0.25
Dose Escalation Part: E7766 150 mcg0.3850.27 – 0.5
Dose Escalation Part: E7766 300 mcg0.250.25 – 0.25
Dose Escalation Part: E7766 600 mcg0.250.17 – 23.4
Dose Escalation Part: E7766 780 mcg0.210.2 – 0.25
Part: AUC(0-t): Area Under the Plasma Concentration From Time Zero to Last Curve for E7766 Secondary · Dose Escalation: Cycle 1 Days 1 and 15: predose and up to 24 hours postdose; Dose Expansion: Cycle 1 Days 1 and 15: predose up to 2 hours postdose (Cycle length=21 days)

AUC was quantified using validated liquid LC-MS/MS methods.

Cycle 1 Day 1
GroupValue95% CI
Dose Escalation Part: E7766 75 mcg2.71± 114.0
Dose Escalation Part: E7766 150 mcg3.42± 64.7
Dose Escalation Part: E7766 300 mcg4.25± 26.6
Dose Escalation Part: E7766 600 mcg7.7± 35.9
Dose Escalation Part: E7766 780 mcg8.29± 44.2
Dose Escalation Part: E7766 1000 mcg10.3± NA
Cycle 1 Day 15
GroupValue95% CI
Dose Escalation Part: E7766 75 mcg0.536± 17.0
Dose Escalation Part: E7766 150 mcg1.95± 29.4
Dose Escalation Part: E7766 300 mcg5.51± NA
Dose Escalation Part: E7766 600 mcg4.06± 101.0
Dose Escalation Part: E7766 780 mcg6.89± 76.9
AUC(0-inf): Area Under the Plasma Concentration From Time Zero to Infinity Curve for E7766 Secondary · Dose Escalation: Cycle 1 Days 1 and 15: predose and up to 24 hours postdose; Dose Expansion: Cycle 1 Days 1 and 15: predose up to 2 hours postdose (Cycle length=21 days)

AUC(0-inf) was quantified using liquid chromatography tandem mass spectrometry (LC-MS/MS) methods.

Cycle 1 Day 1
GroupValue95% CI
Dose Escalation Part: E7766 150 mcg5.58± NA
Dose Escalation Part: E7766 300 mcg4.64± 25.1
Dose Escalation Part: E7766 600 mcg8.07± 38.5
Dose Escalation Part: E7766 780 mcg8.93± 54.9
Dose Escalation Part: E7766 1000 mcg10.4± NA
Cycle 1 Day 15
GroupValue95% CI
Dose Escalation Part: E7766 150 mcg2.18± 35.4
Dose Escalation Part: E7766 300 mcg5.79± NA
Dose Escalation Part: E7766 600 mcg5.16± 83.6
Dose Escalation Part: E7766 780 mcg7.07± 75.7
t1/2: Terminal Elimination Half-life for E7766 Secondary · Dose Escalation: Cycle 1 Days 1 and 15: predose and up to 24 hours postdose; Dose Expansion: Cycle 1 Days 1 and 15: predose up to 2 hours postdose (Cycle length=21 days)

t1/2 was quantified using validated liquid LC-MS/MS methods.

Cycle 1 Day 1
GroupValue95% CI
Dose Escalation Part: E7766 150 mcg1.56± NA
Dose Escalation Part: E7766 300 mcg1.07± 4.61
Dose Escalation Part: E7766 600 mcg1.18± 36.9
Dose Escalation Part: E7766 780 mcg1.15± 17.5
Dose Escalation Part: E7766 1000 mcg1± NA
Cycle 1 Day 15
GroupValue95% CI
Dose Escalation Part: E7766 150 mcg0.956± 58.1
Dose Escalation Part: E7766 300 mcg0.917± NA
Dose Escalation Part: E7766 600 mcg1.34± 66.7
Dose Escalation Part: E7766 780 mcg0.723± 59.5
Dose Escalation Part: CL/F: Apparent Total Body Clearance for E7766 Secondary · Dose Escalation: Cycle 1 Days 1 and 15: predose and up to 24 hours postdose (Cycle length=21 days)

CL/F was quantified using validated liquid LC-MS/MS methods.

Cycle 1 Day 1
GroupValue95% CI
Dose Escalation Part: E7766 150 mcg26.9± NA
Dose Escalation Part: E7766 300 mcg64.6± 25.2
Dose Escalation Part: E7766 600 mcg74.4± 38.5
Dose Escalation Part: E7766 780 mcg87.3± 54.8
Dose Escalation Part: E7766 1000 mcg90.3± NA
Cycle 1 Day 15
GroupValue95% CI
Dose Escalation Part: E7766 150 mcg68.7± 35.3
Dose Escalation Part: E7766 300 mcg51.8± NA
Dose Escalation Part: E7766 600 mcg116.0± 83.7
Dose Escalation Part: E7766 780 mcg110.0± 75.9

Adverse events — posted to ClinicalTrials.gov

Time frame: Dose Escalation Part: From the first dose of the study drug up to 90 days after the last dose (up to 9 months and 14 days). Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Dose Escalation Part: E7766 75 mcg
Serious: 0/2 (0%)
Deaths: 1/2
Dose Escalation Part: E7766 150 mcg
Serious: 0/2 (0%)
Deaths: 1/2
Dose Escalation Part: E7766 300 mcg
Serious: 1/2 (50%)
Deaths: 1/2
Dose Escalation Part: E7766 600 mcg
Serious: 3/11 (27%)
Deaths: 4/11
Dose Escalation Part: E7766 780 mcg
Serious: 3/6 (50%)
Deaths: 5/6
Dose Escalation Part: E7766 1000 mcg
Serious: 1/1 (100%)
Deaths: 1/1

Serious adverse events (10 terms)

ReactionSystemDose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…
Small intestinal obstructionGastrointestinal disorders
Upper gastrointestinal haemorrhageGastrointestinal disorders
VomitingGastrointestinal disorders
Injection site painGeneral disorders
Localised oedemaGeneral disorders
Tumour painNeoplasms benign, malignant and unspecified (incl cysts and polyps)
Cerebral venous sinus thrombosisNervous system disorders
Confusional statePsychiatric disorders
HypertensionVascular disorders
HypotensionVascular disorders
Other adverse events (98 terms — click to expand)

ReactionSystemDose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…Dose Escalation Part: E776…
ChillsGeneral disorders
PyrexiaGeneral disorders
AnaemiaBlood and lymphatic system disorders
NauseaGastrointestinal disorders
FatigueGeneral disorders
Gamma-glutamyltransferase increasedInvestigations
Blood alkaline phosphatase increasedInvestigations
Decreased appetiteMetabolism and nutrition disorders
HeadacheNervous system disorders
TachycardiaCardiac disorders
VomitingGastrointestinal disorders
Alanine aminotransferase increasedInvestigations
Weight decreasedInvestigations
HypotensionVascular disorders
ConstipationGastrointestinal disorders
DiarrhoeaGastrointestinal disorders
Dry mouthGastrointestinal disorders
Injection site painGeneral disorders
Injection site reactionGeneral disorders
Aspartate aminotransferase increasedInvestigations
Blood creatine phosphokinase increasedInvestigations
HypoalbuminaemiaMetabolism and nutrition disorders
HypomagnesaemiaMetabolism and nutrition disorders
HyponatraemiaMetabolism and nutrition disorders
ArthralgiaMusculoskeletal and connective tissue disorders
Tumour painNeoplasms benign, malignant and unspecified (incl cysts and polyps)
CoughRespiratory, thoracic and mediastinal disorders
HypoxiaRespiratory, thoracic and mediastinal disorders
PruritusSkin and subcutaneous tissue disorders
HypertensionVascular disorders
Anaemia of malignant diseaseBlood and lymphatic system disorders
LymphopeniaBlood and lymphatic system disorders
Atrial flutterCardiac disorders
BradycardiaCardiac disorders
Sinus bradycardiaCardiac disorders
Sinus tachycardiaCardiac disorders
Ear painEar and labyrinth disorders
TinnitusEar and labyrinth disorders
VertigoEar and labyrinth disorders
Lacrimation increasedEye disorders

Most-reported serious reactions: Small intestinal obstruction, Upper gastrointestinal haemorrhage, Vomiting, Injection site pain, Localised oedema, Tumour pain, Cerebral venous sinus thrombosis, Confusional state.

Data from ClinicalTrials.gov NCT04144140 adverse events section.

Sponsor's own description

This is an open label, multicenter, phase 1/1b study to assess safety/tolerability and preliminary clinical activity of E7766 as a single agent administered intratumorally in participants with advanced solid tumors or lymphomas.

Publications & conference data

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

  1. Inflammation and tumor progression: signaling pathways and targeted intervention.
    Zhao H, Wu L, Yan G, Chen Y, et al · · 2021 · cited 1932× · PMID 34248142 · DOI 10.1038/s41392-021-00658-5
  2. cGAS-STING, an important pathway in cancer immunotherapy.
    Jiang M, Chen P, Wang L, Li W, et al · · 2020 · cited 420× · PMID 32571374 · DOI 10.1186/s13045-020-00916-z
  3. Intratumoural administration and tumour tissue targeting of cancer immunotherapies.
    Melero I, Castanon E, Alvarez M, Champiat S, et al · · 2021 · cited 358× · PMID 34006998 · DOI 10.1038/s41571-021-00507-y
  4. STING Agonists as Cancer Therapeutics.
    Amouzegar A, Chelvanambi M, Filderman JN, Storkus WJ, et al · · 2021 · cited 311× · PMID 34070756 · DOI 10.3390/cancers13112695
  5. Targeting cytokine and chemokine signaling pathways for cancer therapy.
    Yi M, Li T, Niu M, Zhang H, et al · · 2024 · cited 264× · PMID 39034318 · DOI 10.1038/s41392-024-01868-3
  6. cGAS-STING pathway in cancer biotherapy.
    Wang Y, Luo J, Alu A, Han X, et al · · 2020 · cited 255× · PMID 32887628 · DOI 10.1186/s12943-020-01247-w
  7. Chemical and Biomolecular Strategies for STING Pathway Activation in Cancer Immunotherapy.
    Garland KM, Sheehy TL, Wilson JT. · · 2022 · cited 250× · PMID 35107989 · DOI 10.1021/acs.chemrev.1c00750
  8. The cGAS-STING signaling in cardiovascular and metabolic diseases: Future novel target option for pharmacotherapy.
    Oduro PK, Zheng X, Wei J, Yang Y, et al · · 2022 · cited 231× · PMID 35127372 · DOI 10.1016/j.apsb.2021.05.011

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Data sources for this page

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/NCT04144140.

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