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A Phase 1/2 Study of INCB001158 in Combination With Chemotherapy in Subjects With Solid Tumors

A Phase 1/2 Study to Evaluate the Safety, Tolerability, and Efficacy of INCB001158 in Combination With Chemotherapy, in Subjects With Advanced or Metastatic Solid Tumors

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03314935
Enrollment
149
Registered
2017-10-19
Start date
2017-11-21
Completion date
2022-11-28
Last updated
2025-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Biliary Tract Cancer (BTC), Colorectal Cancer (CRC), Endometrial Cancer, Gastroesophageal Cancer (GC), Ovarian Cancer, Solid Tumors

Keywords

INCB001158, arginase inhibitor, oxaliplatin, leucovorin, 5 fluorouracil, gemcitabine, cisplatin, paclitaxel, solid tumors, colorectal cancer, biliary tract cancer, gastroesophageal cancer, endometrial cancer, ovarian cancer

Brief summary

The purpose of this open-label nonrandomized Phase 1/2 study is to evaluate INCB001158 in combination with chemotherapy in participants with advanced/metastatic solid tumors.

Interventions

Phase 1: INCB001158 administered orally twice daily at the protocol-defined dose. Phase 2: INCB001158 administered orally twice daily at the recommended dose from Phase 1.

DRUGOxaliplatin

Oxaliplatin administered intravenously at the protocol-defined dose and schedule.

DRUGLeucovorin

Leucovorin at the protocol-defined dose and regimen.

DRUG5-Fluorouracil

5-Fluorouracil at the protocol-defined dose and regimen.

DRUGGemcitabine

Gemcitabine at the protocol-defined dose and regimen.

DRUGCisplatin

Cisplatin at the protocol-defined dose and regimen.

DRUGPaclitaxel

Paclitaxel at the protocol-defined dose and regimen.

Sponsors

Incyte Corporation
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically or cytologically confirmed diagnosis of selected advanced or metastatic solid tumors. * Presence of measurable disease per RECIST v1.1. * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. * Baseline archival tumor specimen available or willingness to undergo a pretreatment tumor biopsy to obtain the specimen. * Resolution of treatment-related toxicities. * Adequate hepatic, renal, cardiac, and hematologic function. * Additional cohort-specific criteria may apply.

Exclusion criteria

* Subjects who participated in any other study in which receipt of an investigational study drug or device occurred within 28 days or 5 half-lives (whichever is longer) prior to first dose. * Has received a prior monoclonal antibody within 4 weeks or 5 half-lives (whichever is shorter) before administration of study drug. * Has had prior chemotherapy or targeted small molecule therapy within 2 weeks before administration of study treatment. * Has received prior approved radiotherapy within 14 days of study therapy. * Has had known additional malignancy that is progressing or requires active treatment, or history of other malignancy within 2 years of study entry. * Has an active autoimmune disease that has required systemic treatment in past 2 years. * Has an active infection requiring systemic therapy. * Has known active CNS metastases and/or carcinomatous meningitis. * Women who are pregnant or breastfeeding.

Design outcomes

Primary

MeasureTime frameDescription
Phases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)up to 1385 daysAn adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related, that occurred after a participant provided informed consent. Abnormal laboratory values or test results occurring after informed consent constituted AEs only if they induced clinical signs or symptoms, were considered clinically meaningful, required therapy (e.g., hematologic abnormality that required transfusion), or required changes in the study drug(s). A TEAE was defined as any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug.
Phase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)up to Day 28A DLT was defined as the occurrence of any protocol-defined toxicity occurring up to and including Day 28, except those with a clear alternative explanation (e.g., disease progression) or transient (≤72 hours) abnormal laboratory values without associated clinically significant signs or symptoms based on investigator determination. All DLTs were assessed by the investigator using Common Terminology Criteria for Adverse Events (CTCAE) v4.03 criteria.
Recommended Phase 2 Dose (RP2D) of INCB001158 When Given in Combination With Each Chemotherapy Regimenup to Day 580The RP2D of the combination of INCB001158 and chemotherapy in 21-day (for gemcitabine/cisplatin) or 28-day (for mFOLFOX6 or paclitaxel) treatment cycles in participants with advanced or metastatic solid tumors was determined. After the dose escalation was completed, the INCB001158 dose level that was pharmacologically active and tolerable in combination with each chemotherapy regimen (i.e., maximum tolerated dose or lower) was determined to be the RP2D. The RP2D was then further assessed in tumor expansion cohorts in Phase 2.
Phase 2: Objective Response Rate (ORR)up to 1385 daysORR was defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), as determined by investigator assessment of radiographic disease as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 (v1.1). CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 millimeters (mm). PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions. Analysis was conducted by cohort (tumor type) in Phase 2 because different tumor types could have different response criteria or different background response rates.

Secondary

MeasureTime frameDescription
Cmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose AdministrationDay 1 of Cycle 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycle 2: predose; 1 and 4 hours post-dose for sparse sample collectionCmin was defined as the minimum observed plasma concentration over the dose interval. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.
Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationDay 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collectionCmax was defined as the maximum observed plasma concentration over the dose interval. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.
Phase 1: ORRup to 580 daysORR was defined as the percentage of participants with a confirmed best overall response of CR or PR, as determined by investigator assessment of radiographic disease as per RECIST v1.1. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 mm. PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the Baseline sum diameters, no new lesions, and no progression of non-target lesions.
AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationDay 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collectionAUC0-t was defined as the area under the plasma concentration-time curve from time = 0 to the last measurable concentration at time = t. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.
Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationDay 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collectiontlast was defined as the time of the last sample collected from which a concentration was measured. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.
Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationDay 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collectiontmax was defined as the time to the maximum concentration. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.
Phases 1 and 2: Duration of Responseup to 368 daysDOR was defined as the time from initial objective response (CR or PR) (as determined by investigator assessment of radiographic disease assessment per RECIST v1.1) until the earliest date of disease progression or death due to any cause, if it occurred sooner than disease progression. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 mm. PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions. PD: progression of a target or non-target lesion or presence of a new lesion.
Phases 1 and 2: Disease Control Rateup to 1385 daysDCR was defined as the percentage of participants with an overall response of CR, PR, or stable disease (SD), as determined by investigator assessment of radiographic disease as per RECIST v1.1, for at least 8 weeks. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 mm. PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions. PD: progression of a target or non-target lesion or presence of a new lesion. SD: no change in target lesions to qualify for CR, PR, or PD.
Phases 1 and 2: Progression-free Survivalup to 1385 daysAccording to RECIST 1.1, PFS was defined as the length of time from the date of the first dose study of drug until the earliest date of disease progression, as determined by investigator assessment of radiographic disease per RECIST v1.1, or death due to any cause, if it occurred sooner than progression.

Countries

Belgium, United Kingdom, United States

Participant flow

Pre-assignment details

This study was conducted at 11 study centers in the United States, the United Kingdom, and Belgium.

Participants by arm

ArmCount
Phase 1: INCB001158 50 mg + mFOLFOX6
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 50 milligrams (mg) twice daily (BID) starting on Day 1 of each 28-day cycle. Participants also received intravenous modified FOLFOX6 (mFOLFOX6: oxaliplatin 85 mg/meters squared \[m\^2\], leucovorin 400 mg/m\^2, and 5-fluorouracil 400 mg/m\^2 \[bolus\] and 2400 mg/m\^2 \[continuous infusion\]) on Day 1 and Day 15 of each 28-day cycle after administration of INCB001158.
8
Phase 1: INCB001158 75 mg + mFOLFOX6
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 75 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous mFOLFOX6 (oxaliplatin 85 mg/m\^2, leucovorin 400 mg/m\^2, and 5-fluorouracil 400 mg/m\^2 \[bolus\] and 2400 mg/m\^2 \[continuous infusion\]) on Day 1 and Day 15 of each 28-day cycle after administration of INCB001158.
6
Phase 1: INCB001158 100 mg + mFOLFOX6
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous mFOLFOX6 (oxaliplatin 85 mg/m\^2, leucovorin 400 mg/m\^2, and 5-fluorouracil 400 mg/m\^2 \[bolus\] and 2400 mg/m\^2 \[continuous infusion\]) on Day 1 and Day 15 of each 28-day cyce after administration of INCB001158.
6
Phase 1: INCB001158 50 mg + Gemcitabine + Cisplatin
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 50 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous gemcitabine 1000 mg/m\^2 and intravenous cisplatin 30 mg/m\^2 on Day 1 and Day 8 of each 28-day cycle.
7
Phase 1: INCB001158 75 mg + Gemcitabine + Cisplatin
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 75 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous gemcitabine 1000 mg/m\^2 and intravenous cisplatin 30 mg/m\^2 on Day 1 and Day 8 of each 28-day cycle.
4
Phase 1: INCB001158 100 mg + Gemcitabine + Cisplatin
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous gemcitabine 1000 mg/m\^2 and intravenous cisplatin 30 mg/m\^2 on Day 1 and Day 8 of each 28-day cycle.
4
Phase 1: INCB001158 50 mg + Paclitaxel
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 50 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous paclitaxel 80 mg/m\^2 on Day 1, Day 8, and Day 15 of each 28-day cycle.
7
Phase 1: INCB001158 75 mg + Paclitaxel
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 75 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous paclitaxel 80 mg/m\^2 on Day 1, Day 8, and Day 15 of each 28-day cycle.
5
Phase 1: INCB001158 100 mg + Paclitaxel
In Phase 1, participants with advanced or metastatic solid tumors received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous paclitaxel 80 mg/m\^2 on Day 1, Day 8, and Day 15 of each 28-day cycle.
7
Phase 2: INCB001158 100 mg + mFOLFOX6: MSS-CRC (Cohort A1)
In Phase 2, participants with microsatellite-stable-colorectal cancer (MSS-CRC) received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous mFOLFOX6 (oxaliplatin 85 mg/m\^2, leucovorin 400 mg/m\^2, and 5-fluorouracil 400 mg/m\^2 \[bolus\] and 2400 mg/m\^2 \[continuous infusion\]) on Day 1 and Day 15 of each 28-day cycle after administration of INCB001158.
8
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: BTC (Cohort B1)
In Phase 2, participants with biliary tract cancer (BTC) received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous gemcitabine 1000 mg/m\^2 and intravenous cisplatin 25 mg/m\^2 on Day 1 and 8 of each 28-day cycle.
33
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: OC (Cohort B2)
In Phase 2, participants with ovarian cancer (OC) received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous gemcitabine 750 mg/m\^2 and intravenous cisplatin 30 mg/m\^2 on Day 1 and 8 of each 28-day cycle.
9
Phase 2: INCB001158 100 mg + Paclitaxel: GC (Cohort C1)
In Phase 2, participants with gastroesophageal cancer (GC) received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous paclitaxel 80 mg/m\^2 on Day 1, Day 8, and Day 15 of each 28-day cycle.
11
Phase 2: INCB001158 100 mg + Paclitaxel: EC (Cohort C2)
In Phase 2, participants with endometrial cancer (EC) received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous paclitaxel 80 mg/m\^2 on Day 1, Day 8, and Day 15 of each 28-day cycle.
10
Phase 2: INCB001158 100 mg + Paclitaxel: OC (Cohort C3)
In Phase 2, participants with ovarian cancer (OC) received oral INCB001158 100 mg BID starting on Day 1 of each 28-day cycle. Participants also received intravenous paclitaxel 80 mg/m\^2 on Day 1, Day 8, and Day 15 of each 28-day cycle.
24
Total149

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009FG010FG011FG012FG013FG014
Phase 1Captured as Other in Database020000111000000
Phase 1Death425434543000000
Phase 1Lost to Follow-up000000001000000
Phase 1Progressive Disease200100000000000
Phase 1Study Terminated by Sponsor010000001000000
Phase 1Withdrawal by Subject211210101000000
Phase 2Death00000000052067617
Phase 2Lost to Follow-up000000000100001
Phase 2Physician Decision000000000010000
Phase 2Progressive Disease000000000111201
Phase 2Study Terminated by Sponsor000000000072144
Phase 2Withdrawal by Subject000000000140101

Baseline characteristics

CharacteristicTotalPhase 2: INCB001158 100 mg + Paclitaxel: OC (Cohort C3)Phase 2: INCB001158 100 mg + Paclitaxel: EC (Cohort C2)Phase 2: INCB001158 100 mg + Paclitaxel: GC (Cohort C1)Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: OC (Cohort B2)Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: BTC (Cohort B1)Phase 2: INCB001158 100 mg + mFOLFOX6: MSS-CRC (Cohort A1)Phase 1: INCB001158 100 mg + PaclitaxelPhase 1: INCB001158 75 mg + PaclitaxelPhase 1: INCB001158 50 mg + PaclitaxelPhase 1: INCB001158 100 mg + Gemcitabine + CisplatinPhase 1: INCB001158 75 mg + Gemcitabine + CisplatinPhase 1: INCB001158 50 mg + Gemcitabine + CisplatinPhase 1: INCB001158 100 mg + mFOLFOX6Phase 1: INCB001158 75 mg + mFOLFOX6Phase 1: INCB001158 50 mg + mFOLFOX6
Age, Continuous59.93 years
STANDARD_DEVIATION 11.66
60.6 years
STANDARD_DEVIATION 9.04
62.3 years
STANDARD_DEVIATION 9.29
58.8 years
STANDARD_DEVIATION 11.9
65.3 years
STANDARD_DEVIATION 8.87
59.3 years
STANDARD_DEVIATION 12.74
62.8 years
STANDARD_DEVIATION 11.26
61.4 years
STANDARD_DEVIATION 6.95
47.4 years
STANDARD_DEVIATION 10.29
62.0 years
STANDARD_DEVIATION 14.57
54.0 years
STANDARD_DEVIATION 15.64
64.5 years
STANDARD_DEVIATION 16.82
54.0 years
STANDARD_DEVIATION 18.93
65.2 years
STANDARD_DEVIATION 7.99
60.3 years
STANDARD_DEVIATION 9.93
56.4 years
STANDARD_DEVIATION 10.8
Ethnicity (NIH/OMB)
Hispanic or Latino
6 Participants0 Participants0 Participants0 Participants1 Participants2 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
136 Participants23 Participants10 Participants11 Participants7 Participants29 Participants7 Participants7 Participants5 Participants7 Participants4 Participants4 Participants6 Participants6 Participants5 Participants5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
7 Participants1 Participants0 Participants0 Participants1 Participants2 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants3 Participants
Race/Ethnicity, Customized
American-Indian/Alaska Native
1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
7 Participants1 Participants1 Participants2 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Black/African-American
6 Participants0 Participants1 Participants0 Participants0 Participants1 Participants1 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants2 Participants
Race/Ethnicity, Customized
Black/Carribean
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Captured as Hispanic/Latino in Database
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
East Indian
1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Not Provided/Specified
3 Participants0 Participants0 Participants1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
White
129 Participants23 Participants8 Participants8 Participants8 Participants31 Participants7 Participants5 Participants5 Participants7 Participants4 Participants3 Participants6 Participants6 Participants6 Participants2 Participants
Sex: Female, Male
Female
103 Participants24 Participants10 Participants4 Participants9 Participants21 Participants3 Participants5 Participants4 Participants5 Participants3 Participants2 Participants3 Participants3 Participants4 Participants3 Participants
Sex: Female, Male
Male
46 Participants0 Participants0 Participants7 Participants0 Participants12 Participants5 Participants2 Participants1 Participants2 Participants1 Participants2 Participants4 Participants3 Participants2 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
deaths
Total, all-cause mortality
4 / 82 / 611 / 144 / 73 / 430 / 465 / 74 / 536 / 5299 / 149
other
Total, other adverse events
8 / 86 / 613 / 147 / 74 / 445 / 467 / 75 / 550 / 52145 / 149
serious
Total, serious adverse events
6 / 81 / 67 / 143 / 71 / 430 / 464 / 74 / 527 / 5283 / 149

Outcome results

Primary

Phase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)

A DLT was defined as the occurrence of any protocol-defined toxicity occurring up to and including Day 28, except those with a clear alternative explanation (e.g., disease progression) or transient (≤72 hours) abnormal laboratory values without associated clinically significant signs or symptoms based on investigator determination. All DLTs were assessed by the investigator using Common Terminology Criteria for Adverse Events (CTCAE) v4.03 criteria.

Time frame: up to Day 28

Population: Phase 1 DLT Evaluable Population: all participants enrolled in Phase 1 who had been treated with the assigned dose level of INCB001158 and who had received at least 32 of the 42 doses prescribed for a 21-day cycle regimen or at least 42 of the 56 doses prescribed for a 28-day cycle regimen (both representing ≥ 75% of the dose planned) or who had experienced a DLT

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Phase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Phase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Phase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinPhase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)1 Participants
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinPhase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinPhase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 50 mg + PaclitaxelPhase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 75 mg + PaclitaxelPhase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Phase 1 and Phase 2: INCB001158 100 mg + PaclitaxelPhase 1: Number of Participants With Any Dose-limiting Toxicity (DLT)0 Participants
Primary

Phase 2: Objective Response Rate (ORR)

ORR was defined as the percentage of participants with a best overall response of complete response (CR) or partial response (PR), as determined by investigator assessment of radiographic disease as per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 (v1.1). CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 millimeters (mm). PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions. Analysis was conducted by cohort (tumor type) in Phase 2 because different tumor types could have different response criteria or different background response rates.

Time frame: up to 1385 days

Population: Phase 2 Response Evaluable Population: all participants who had received ≥1 dose of study treatment (INCB001158, mFOLFOX6, gemcitabine/cisplatin, or paclitaxel), completed a Baseline scan, and met ≥1 of the following criteria: (a) had ≥1 post-Baseline scan; (b) was in the study for a minimum of 63 days (8 weeks + 1 week window) of follow-up; (c) discontinued from study treatment

ArmMeasureValue (NUMBER)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Phase 2: Objective Response Rate (ORR)0.0 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Phase 2: Objective Response Rate (ORR)24.2 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Phase 2: Objective Response Rate (ORR)22.2 percentage of participants
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinPhase 2: Objective Response Rate (ORR)9.1 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinPhase 2: Objective Response Rate (ORR)30.0 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinPhase 2: Objective Response Rate (ORR)16.7 percentage of participants
Primary

Phases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)

An adverse event (AE) was defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related, that occurred after a participant provided informed consent. Abnormal laboratory values or test results occurring after informed consent constituted AEs only if they induced clinical signs or symptoms, were considered clinically meaningful, required therapy (e.g., hematologic abnormality that required transfusion), or required changes in the study drug(s). A TEAE was defined as any AE either reported for the first time or the worsening of a pre-existing event after the first dose of study drug.

Time frame: up to 1385 days

Population: Full Analysis Set (FAS): all participants enrolled in the study who received at least 1 dose of INCB001158, mFOLFOX6, gemcitabine/cisplatin, or paclitaxel. As pre-defined in the Statistical Analysis Plan, data analysis was conducted based on treatment group and dose level, regardless of study phase, because the safety profile was expected to be generally uniform across tumor types.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Phases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)8 Participants
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Phases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)6 Participants
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Phases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)13 Participants
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinPhases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)7 Participants
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinPhases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)4 Participants
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinPhases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)46 Participants
Phase 1 and Phase 2: INCB001158 50 mg + PaclitaxelPhases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)7 Participants
Phase 1 and Phase 2: INCB001158 75 mg + PaclitaxelPhases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)5 Participants
Phase 1 and Phase 2: INCB001158 100 mg + PaclitaxelPhases 1 and 2: Number of Participants With Any Treatment-emergent Adverse Event (TEAE)51 Participants
Primary

Recommended Phase 2 Dose (RP2D) of INCB001158 When Given in Combination With Each Chemotherapy Regimen

The RP2D of the combination of INCB001158 and chemotherapy in 21-day (for gemcitabine/cisplatin) or 28-day (for mFOLFOX6 or paclitaxel) treatment cycles in participants with advanced or metastatic solid tumors was determined. After the dose escalation was completed, the INCB001158 dose level that was pharmacologically active and tolerable in combination with each chemotherapy regimen (i.e., maximum tolerated dose or lower) was determined to be the RP2D. The RP2D was then further assessed in tumor expansion cohorts in Phase 2.

Time frame: up to Day 580

Population: DLT Evaluable Population

ArmMeasureValue (NUMBER)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Recommended Phase 2 Dose (RP2D) of INCB001158 When Given in Combination With Each Chemotherapy Regimen100 milligrams
Secondary

AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose Administration

AUC0-t was defined as the area under the plasma concentration-time curve from time = 0 to the last measurable concentration at time = t. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.

Time frame: Day 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collection

Population: Phase 2 PK Population. Only participants with available data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 16910 hours x ng/mLGeometric Coefficient of Variation 17.6
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 111000 hours x ng/mLGeometric Coefficient of Variation 21.1
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17240 hours x ng/mLGeometric Coefficient of Variation 32.9
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 110600 hours x ng/mLGeometric Coefficient of Variation 55.3
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 110600 hours x ng/mLGeometric Coefficient of Variation 18.9
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6AUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 112200 hours x ng/mLGeometric Coefficient of Variation 34.4
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinAUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 14680 hours x ng/mLGeometric Coefficient of Variation 134
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinAUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 110000 hours x ng/mLGeometric Coefficient of Variation 18.4
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinAUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 19290 hours x ng/mLGeometric Coefficient of Variation 33.2
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinAUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 114400 hours x ng/mLGeometric Coefficient of Variation 13.7
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinAUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 18840 hours x ng/mLGeometric Coefficient of Variation 24.7
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinAUC0-t of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 112800 hours x ng/mLGeometric Coefficient of Variation 30.3
Secondary

Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose Administration

Cmax was defined as the maximum observed plasma concentration over the dose interval. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.

Time frame: Day 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collection

Population: Phase 2 PK Population. Only participants with available data were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 11290 ng/mLGeometric Coefficient of Variation 16.4
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 11960 ng/mLGeometric Coefficient of Variation 12.6
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 11350 ng/mLGeometric Coefficient of Variation 35.2
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 11860 ng/mLGeometric Coefficient of Variation 46.7
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 12160 ng/mLGeometric Coefficient of Variation 22.3
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Cmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 12250 ng/mLGeometric Coefficient of Variation 26.4
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinCmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 11100 ng/mLGeometric Coefficient of Variation 68
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinCmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 11600 ng/mLGeometric Coefficient of Variation 22
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinCmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 11760 ng/mLGeometric Coefficient of Variation 17.2
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinCmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 12390 ng/mLGeometric Coefficient of Variation 11.4
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinCmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 11640 ng/mLGeometric Coefficient of Variation 23.2
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinCmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 12100 ng/mLGeometric Coefficient of Variation 24.6
Secondary

Cmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration

Cmin was defined as the minimum observed plasma concentration over the dose interval. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.

Time frame: Day 1 of Cycle 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycle 2: predose; 1 and 4 hours post-dose for sparse sample collection

Population: Phase 2 Pharmacokinetic (PK) Population. Only participants with available data were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Cmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration747 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 35.7
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Cmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration407 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 407
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Cmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration268 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 888
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinCmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration542 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 102
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinCmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration1020 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 27.2
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinCmin of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy on Cycle 2 Day 1 Following Repeated Dose Administration633 nanograms per milliliter (ng/mL)Geometric Coefficient of Variation 131
Secondary

Phase 1: ORR

ORR was defined as the percentage of participants with a confirmed best overall response of CR or PR, as determined by investigator assessment of radiographic disease as per RECIST v1.1. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 mm. PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the Baseline sum diameters, no new lesions, and no progression of non-target lesions.

Time frame: up to 580 days

Population: Phase 1 Response Evaluable Population: all participants who had received ≥1 dose of study treatment (INCB001158, mFOLFOX6, gemcitabine/cisplatin, or paclitaxel), completed a Baseline scan, and met ≥1 of the following criteria: (a) had ≥1 post-Baseline scan; (b) was in the study for a minimum of 63 days (8 weeks + 1 week window) of follow-up; (c) discontinued from study treatment. Analysis was conducted by dose.

ArmMeasureValue (NUMBER)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Phase 1: ORR12.5 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Phase 1: ORR0.0 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Phase 1: ORR0.0 percentage of participants
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinPhase 1: ORR0.0 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinPhase 1: ORR25.0 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinPhase 1: ORR0.0 percentage of participants
Phase 1 and Phase 2: INCB001158 50 mg + PaclitaxelPhase 1: ORR14.3 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + PaclitaxelPhase 1: ORR0.0 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + PaclitaxelPhase 1: ORR28.6 percentage of participants
Secondary

Phases 1 and 2: Disease Control Rate

DCR was defined as the percentage of participants with an overall response of CR, PR, or stable disease (SD), as determined by investigator assessment of radiographic disease as per RECIST v1.1, for at least 8 weeks. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 mm. PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions. PD: progression of a target or non-target lesion or presence of a new lesion. SD: no change in target lesions to qualify for CR, PR, or PD.

Time frame: up to 1385 days

Population: Response Evaluable Population. Data analysis was conducted based on study phase. Additionally, analysis was conducted by dose in Phase 1 and by cohort (tumor type) in Phase 2 because different tumor types could have different response criteria or different background response rates.

ArmMeasureValue (NUMBER)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Phases 1 and 2: Disease Control Rate62.5 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Phases 1 and 2: Disease Control Rate83.3 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Phases 1 and 2: Disease Control Rate16.7 percentage of participants
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinPhases 1 and 2: Disease Control Rate57.1 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinPhases 1 and 2: Disease Control Rate75.0 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinPhases 1 and 2: Disease Control Rate100.0 percentage of participants
Phase 1 and Phase 2: INCB001158 50 mg + PaclitaxelPhases 1 and 2: Disease Control Rate42.9 percentage of participants
Phase 1 and Phase 2: INCB001158 75 mg + PaclitaxelPhases 1 and 2: Disease Control Rate60.0 percentage of participants
Phase 1 and Phase 2: INCB001158 100 mg + PaclitaxelPhases 1 and 2: Disease Control Rate85.7 percentage of participants
Phase 2: INCB001158 100 mg + mFOLFOX6: MSS-CRC (Cohort A1)Phases 1 and 2: Disease Control Rate100.0 percentage of participants
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: BTC (Cohort B1)Phases 1 and 2: Disease Control Rate66.7 percentage of participants
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: OC (Cohort B2)Phases 1 and 2: Disease Control Rate88.9 percentage of participants
Phase 2: INCB001158 100 mg + Paclitaxel: GC (Cohort C1)Phases 1 and 2: Disease Control Rate54.5 percentage of participants
Phase 2: INCB001158 100 mg + Paclitaxel: EC (Cohort C2)Phases 1 and 2: Disease Control Rate80.0 percentage of participants
Phase 2: INCB001158 100 mg + Paclitaxel: OC (Cohort C3)Phases 1 and 2: Disease Control Rate66.7 percentage of participants
Secondary

Phases 1 and 2: Duration of Response

DOR was defined as the time from initial objective response (CR or PR) (as determined by investigator assessment of radiographic disease assessment per RECIST v1.1) until the earliest date of disease progression or death due to any cause, if it occurred sooner than disease progression. CR: disappearance of all target and non-target lesions and no appearance of any new lesions. Any pathological lymph nodes (whether target or non-target) must have a reduction in the short axis to \<10 mm. PR: complete disappearance or at least a 30% decrease in the sum of the diameters of target lesions, taking as a reference the baseline sum diameters, no new lesions, and no progression of non-target lesions. PD: progression of a target or non-target lesion or presence of a new lesion.

Time frame: up to 368 days

Population: Response Evaluable Population. Analysis was conducted based on study phase. Analysis was conducted by dose in Phase 1 and by cohort (tumor type) in Phase 2 because different tumor types could have different response criteria or different background response rates. Analysis was conducted in cohorts with \>5 objective responders; the Kaplan Meier estimation method on a sample size of \<5 responders is not valid. The confidence interval was calculated using the method of Brookmeyer and Crowley.

ArmMeasureValue (MEDIAN)
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: BTC (Cohort B1)Phases 1 and 2: Duration of Response5.8 months
Secondary

Phases 1 and 2: Progression-free Survival

According to RECIST 1.1, PFS was defined as the length of time from the date of the first dose study of drug until the earliest date of disease progression, as determined by investigator assessment of radiographic disease per RECIST v1.1, or death due to any cause, if it occurred sooner than progression.

Time frame: up to 1385 days

Population: FAS. Data analysis was conducted based on study phase. Additionally, analysis was conducted by dose in Phase 1 and by cohort (tumor type) in Phase 2 because different tumor types could have different response criteria or different background response rates. Median survival time was estimated using the Kaplan-Meier method. CI for median survival time was calculated using the method of Brookmeyer and Crowley.

ArmMeasureValue (MEDIAN)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Phases 1 and 2: Progression-free Survival3.7 months
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Phases 1 and 2: Progression-free Survival6.6 months
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Phases 1 and 2: Progression-free Survival1.7 months
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinPhases 1 and 2: Progression-free Survival3.9 months
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinPhases 1 and 2: Progression-free Survival5.3 months
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinPhases 1 and 2: Progression-free Survival6.4 months
Phase 1 and Phase 2: INCB001158 50 mg + PaclitaxelPhases 1 and 2: Progression-free Survival3.9 months
Phase 1 and Phase 2: INCB001158 75 mg + PaclitaxelPhases 1 and 2: Progression-free Survival3.7 months
Phase 1 and Phase 2: INCB001158 100 mg + PaclitaxelPhases 1 and 2: Progression-free Survival11.8 months
Phase 2: INCB001158 100 mg + mFOLFOX6: MSS-CRC (Cohort A1)Phases 1 and 2: Progression-free Survival3.7 months
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: BTC (Cohort B1)Phases 1 and 2: Progression-free Survival8.5 months
Phase 2: INCB001158 100 mg + Gemcitabine + Cisplatin: OC (Cohort B2)Phases 1 and 2: Progression-free Survival7.8 months
Phase 2: INCB001158 100 mg + Paclitaxel: GC (Cohort C1)Phases 1 and 2: Progression-free Survival3.5 months
Phase 2: INCB001158 100 mg + Paclitaxel: EC (Cohort C2)Phases 1 and 2: Progression-free Survival7.1 months
Phase 2: INCB001158 100 mg + Paclitaxel: OC (Cohort C3)Phases 1 and 2: Progression-free Survival3.7 months
Secondary

Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose Administration

tlast was defined as the time of the last sample collected from which a concentration was measured. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.

Time frame: Day 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collection

Population: Phase 2 PK Population. Only participants with available data were analyzed.

ArmMeasureGroupValue (MEDIAN)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 17.50 hours
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17.53 hours
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 17.58 hours
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17.73 hours
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 17.60 hours
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Tlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17.53 hours
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinTlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17.50 hours
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinTlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 17.57 hours
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinTlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17.53 hours
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinTlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 17.55 hours
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinTlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 17.58 hours
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinTlast of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 17.65 hours
Secondary

Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose Administration

tmax was defined as the time to the maximum concentration. Extensive sample collection was used for the first 12 participants enrolled in each chemotherapy regimen. Sparse sample collection was used for the 13th participant enrolled and onward.

Time frame: Day 1 of Cycles 1 and 2: predose; 0.5, 1, 2, 4, 6, and 8-10 hours post-dose for extensive sample collection. Day 1 of Cycles 1 and 2: predose; 1 and 4 hours post-dose for sparse sample collection

Population: Phase 2 PK Population. Only participants with available data were analyzed.

ArmMeasureGroupValue (MEDIAN)
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 14.13 hours
Phase 1 and Phase 2: INCB001158 50 mg + mFOLFOX6Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 14.00 hours
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 14.07 hours
Phase 1 and Phase 2: INCB001158 75 mg + mFOLFOX6Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 14.00 hours
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 14.08 hours
Phase 1 and Phase 2: INCB001158 100 mg + mFOLFOX6Tmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 14.06 hours
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinTmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 15.05 hours
Phase 1 and Phase 2: INCB001158 50 mg + Gemcitabine + CisplatinTmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 14.13 hours
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinTmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 14.09 hours
Phase 1 and Phase 2: INCB001158 75 mg + Gemcitabine + CisplatinTmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 13.85 hours
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinTmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 1 Day 13.97 hours
Phase 1 and Phase 2: INCB001158 100 mg + Gemcitabine + CisplatinTmax of INCB001158 in Participants Treated With INCB001158 in Combination With Chemotherapy Following the First Dose on Cycle 1 Day 1 and on Cycle 2 Day 1 Following Repeated Dose AdministrationCycle 2 Day 13.95 hours

Source: ClinicalTrials.gov · Data processed: Feb 16, 2026