Study of INCB123667 in Subjects With Advanced Solid Tumors

NCT ID: NCT05238922

Last Updated: 2025-12-31

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

604 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-05

Study Completion Date

2027-08-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This is an open-label, dose-escalation and dose-expansion study to determine the safety, tolerability, PK, pharmacodynamics, and preliminary efficacy of INCB123667 when administered as monotherapy and in combination with anticancer therapies in participants with selected advanced or metastatic solid tumors. This study will consist of 2 parts. In Part 1, INCB123667 will be administered as monotherapy and in Part 2, INCB123667 will be administered in combination with anticancer therapies of interest. Each part will comprise a dose escalation portion (Parts 1a and 2a, respectively) and a dose-expansion portion (Parts 1b and 2b, respectively).

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Solid Tumors

Keywords

Explore important study keywords that can help with search, categorization, and topic discovery.

advanced solid tumors metastatic solid tumors Gynecological Tumors, GI Tumors, Breast Cancer, Tumor Agnostic cyclin E1 gene epithelial ovarian carcinoma fallopian carcinoma primary peritoneal carcinoma clear cell ovarian cancer endometrial adenocarcinoma uterine carcinosarcoma uterine papillary serous carcinoma gastrointestinal tumors gastric adenocarcinomas GEJ adenocarcinomas esophageal adenocarcinomas

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Part 1a and 2a will be dose escalation using a statistical hybrid design to identify the RDE(s). Parts 1b and 2b will consist of dose expansion to better characterize the safety, tolerability, PK, pharmacodynamics, and preliminary antitumor activity of INCB123667 as monotherapy or in combination with anticancer therapies.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Phase 2b Dose Expansion Treatment Group M (TGM)

INCB123667 administered in combination with olaparib at the recommended doses in participants with gynecologic tumors (epithelial ovarian/fallopian/primary peritoneal carcinoma) as defined by the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Olaparib

Intervention Type DRUG

Olaparib will be administered at protocol defined dose.

Phase 1a Dose Escalation

INCB123667 will be administered at a protocol defined starting regimen once daily (QD) orally in 28-day cycles.

Subsequent dose regimens will be determined during study conduct.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 1b: Dose Expansion Cohort Disease Group 1

INCB123667 will be administered at the recommended dose or doses for expansion (RDE\[s\]) for advanced or metastatic solid tumors. Participants with gynecologic tumors (epithelial ovarian/fallopian/primary peritoneal carcinoma) will enroll in this group.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 1b: Dose Expansion Cohort Disease Group 2

INCB123667 will be administered at the recommended dose or doses for expansion (RDE\[s\]) for advanced or metastatic solid tumors. Participants with Endometrial/Uterine cancer will enroll in this group.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 1b: Dose Expansion Cohort Disease Group 3

INCB123667 will be administered at the recommended dose or doses for expansion (RDE\[s\]) for advanced or metastatic solid tumors. Participants with gastric, Gastro Esophageal Junction (GEJ), and esophageal adenocarcinomas will enroll in this group.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 1b: Dose Expansion Cohort Disease Group 4

INCB123667 will be administered at the recommended dose or doses for expansion (RDE\[s\]) for advanced or metastatic solid tumors. Participants with Triple Negative Breast Cancer(TNBC) will enroll in this group.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 1b: Dose Expansion Cohort Disease Group 5

INCB123667 will be administered at the recommended dose or doses for expansion (RDE\[s\]) for advanced or metastatic solid tumors. Participants with HR+/HER2- breast cancer who have had disease progression on or been intolerant of a CDK4/6 inhibitor will enroll in this group.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 1b: Dose Expansion Cohort Disease Group 6

INCB123667 will be administered at the recommended dose or doses for expansion (RDE\[s\]) for advanced or metastatic solid tumors will enroll in this group.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Phase 2a Dose Escalation Treatment Group A (TGA)

INCB123667 administered in combination with palbociclib at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Palbociclib

Intervention Type DRUG

Palbociclib will be administered at protocol defined dose.

Phase 2a Dose Escalation Treatment Group B (TGB)

INCB123667 administered in combination with palbociclib and fulvestrant at the recommended doses in participants with HR+/HER2- breast cancer as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Palbociclib

Intervention Type DRUG

Palbociclib will be administered at protocol defined dose.

Fulvestrant

Intervention Type DRUG

Fulvestrant will be administered at protocol defined dose.

Phase 2a Dose Escalation Treatment Group C (TGC)

INCB123667 administered in combination with ribociclib at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Ribociclib

Intervention Type DRUG

Ribociclib will be administered at protocol defined dose.

Phase 2a Dose Escalation Treatment Group D (TGD)

INCB123667 administered in combination with ribociclib and fulvestrant at the recommended doses in participants with HR+/HER2- breast cancer as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Ribociclib

Intervention Type DRUG

Ribociclib will be administered at protocol defined dose.

Fulvestrant

Intervention Type DRUG

Fulvestrant will be administered at protocol defined dose.

Phase 2a Dose Escalation Treatment Group E (TGE)

INCB123667 administered in combination with bevacizumab at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Bevacizumab

Intervention Type DRUG

Bevacizumab will be administered at protocol defined dose.

Phase 2a Dose Escalation Treatment Group F (TGF)

INCB123667 administered in combination with olaparib at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Olaparib

Intervention Type DRUG

Olaparib will be administered at protocol defined dose.

Phase 2a Dose Escalation Treatment Group G (TGG)

INCB123667 administered in combination with paclitaxel at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Paclitaxel

Intervention Type DRUG

Paclitaxel will be administered at protocol defined dose.

Phase 2b Dose Expansion Treatment Group H (TGH)

INCB123667 administered in combination with palbociclib at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Palbociclib

Intervention Type DRUG

Palbociclib will be administered at protocol defined dose.

Phase 2b Dose Expansion Treatment Group I (TGI)

INCB123667 administered in combination with palbociclib and fulvestrant at the recommended doses in participants with HR+/HER2- breast cancer as defined in the protocol

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Palbociclib

Intervention Type DRUG

Palbociclib will be administered at protocol defined dose.

Fulvestrant

Intervention Type DRUG

Fulvestrant will be administered at protocol defined dose.

Phase 2b Dose Expansion Treatment Group J (TGJ)

INCB123667 administered in combination with ribociclib at the recommended doses in participants with HR+/HER2- breast cancer and in participants with a different tumor as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Ribociclib

Intervention Type DRUG

Ribociclib will be administered at protocol defined dose.

Phase 2b Dose Expansion Treatment Group K (TGK)

INCB123667 administered in combination with ribociclib and fulvestrant at the recommended doses in participants with HR+/HER2- breast cancer as defined in the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Ribociclib

Intervention Type DRUG

Ribociclib will be administered at protocol defined dose.

Fulvestrant

Intervention Type DRUG

Fulvestrant will be administered at protocol defined dose.

Phase 2b Dose Expansion Treatment Group L (TGL)

INCB123667 administered in combination with bevacizumab at the recommended doses in participants with gynecologic tumors (epithelial ovarian/fallopian/primary peritoneal carcinoma) as defined by the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Bevacizumab

Intervention Type DRUG

Bevacizumab will be administered at protocol defined dose.

Phase 2b Dose Expansion Treatment Group N (TGN)

INCB123667 administered in combination with weekly paclitaxel at the recommended doses in participants with gynecologic tumors (epithelial ovarian/fallopian/primary peritoneal carcinoma) as defined by the protocol.

Group Type EXPERIMENTAL

INCB0123667

Intervention Type DRUG

25 mg tablets

Paclitaxel

Intervention Type DRUG

Paclitaxel will be administered at protocol defined dose.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

INCB0123667

25 mg tablets

Intervention Type DRUG

Palbociclib

Palbociclib will be administered at protocol defined dose.

Intervention Type DRUG

Bevacizumab

Bevacizumab will be administered at protocol defined dose.

Intervention Type DRUG

Olaparib

Olaparib will be administered at protocol defined dose.

Intervention Type DRUG

Paclitaxel

Paclitaxel will be administered at protocol defined dose.

Intervention Type DRUG

Ribociclib

Ribociclib will be administered at protocol defined dose.

Intervention Type DRUG

Fulvestrant

Fulvestrant will be administered at protocol defined dose.

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Adults aged 18 years or older at the time of the signing of the ICF.
* Life expectancy greater than 12 weeks.
* ECOG performance status score of 0 or 1.
* Disease progression on prior standard treatment, intolerance to or ineligibility for standard treatment, or no available treatment to improve the disease outcome.
* Availability of a baseline archival tumor specimen or willingness to undergo a pretreatment and an on-treatment tumor biopsy.

For Part 1:

Participants in Part 1A (dose escalation): Histologically or cytologically confirmed advanced or metastatic solid tumors.

Participants in Part 1B (dose expansion):

* Disease Group 1: Ovarian/Fallopian/Primary Peritoneal Cancer
* Disease Group 2: Endometrial/Uterine Cancer
* Disease Group 3: Gastric, GEJ, and esophageal carcinomas
* Disease Group 4: TNBC
* Disease Group 5: HR+/HER2- breast cancer
* Disease Group 6: Other tumor indications excluding bone cancers

For Part 2:

Participants in Part 2A (dose escalation): Histologically or cytologically confirmed advanced or metastatic solid tumors.

* TGA, TGC, TGE, TGF, and TGG: Participants with HR+/HER2- breast cancer or participants with a different tumor.
* TGB and TGD: Participants with HR+/HER2- breast cancer.

Participants in Part 2b (dose expansion):

* TGH and TGJ:

* Participants with HR+/HER2- breast cancer.
* Participants with any other advanced or metastatic solid tumor.
* TGI and TGK:

• Participants with HR+/HER2- breast cancer.
* TGL, TGM and TGN:

• Participants with advanced or metastatic epithelial ovarian/fallopian/primary peritoneal carcinoma.
* Measurable lesions by CT or MRI based on RECIST v1.1 criteria.

Exclusion Criteria

* History of clinically significant or uncontrolled cardiac disease.
* History or presence of an ECG abnormality that, in the investigator's opinion, is clinically meaningful.
* Presence of chronic or current active infectious disease requiring systemic antibiotic, antifungal, or antiviral treatment.
* Untreated brain or central nervous system (CNS) metastases or brain or CNS metastases that have progressed.
* Known additional malignancy that is progressing or requires active treatment, or history of other malignancy within 2 years of the first dose of study drug.
* Specific laboratory values.
* Significant concurrent, uncontrolled medical conditions, including but not limited to Hepatic and Gastrointestinal.
* Has not recovered to ≤ Grade 1 from toxic effects of prior therapy and/or complications from prior surgical intervention before starting study drug.
* Prior treatment with any CDK2 inhibitor.
* Any change in endocrine therapy within 5 half-lives or 28 days (whichever is shorter) before the first dose of study drug or any administration of targeted therapy, antibody, or hypomethylating agent to treat the participant's disease within 5 half-lives or 28 days (whichever is shorter) before the first dose of study drug.
* Any major surgery within 28 days before the first dose of study drug.
* Any prior radiation therapy within 28 days before the first dose of study drug.
* Undergoing treatment with another investigational medication or having been treated with an investigational medication within 5 half-lives or 28 days (whichever is shorter) before the first dose of study drug.
* Active HBV or HCV infection that requires treatment.
* Known history of HIV.
* Known hypersensitivity or severe reaction to any component of study treatment or formulation components.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Incyte Corporation

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Liz Croft, MD

Role: STUDY_DIRECTOR

Incyte Corporation

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

City of Hope Medical Center

Duarte, California, United States

Site Status RECRUITING

City of Hope-Lennar Foundation Cancer Center

Irvine, California, United States

Site Status RECRUITING

Valkyrie Clinical Trials

Los Angeles, California, United States

Site Status RECRUITING

Rocky Mountain Cancer Centers-Sky Ridge

Lone Tree, Colorado, United States

Site Status RECRUITING

Yale Cancer Center

New Haven, Connecticut, United States

Site Status COMPLETED

Mount Sinai Medical Center Comprehensive Cancer Center

Miami Beach, Florida, United States

Site Status RECRUITING

Emory University

Atlanta, Georgia, United States

Site Status RECRUITING

University of Kansas Cancer Center

Westwood, Kansas, United States

Site Status WITHDRAWN

Hackensack University Medical Center

Hackensack, New Jersey, United States

Site Status NOT_YET_RECRUITING

Memorial Sloan Kettering Cancer Center

New York, New York, United States

Site Status COMPLETED

New York Presbyterian/Weill Cornell

New York, New York, United States

Site Status COMPLETED

Ny Cancer and Blood Specialists

Shirley, New York, United States

Site Status NOT_YET_RECRUITING

Carolina Bio-Oncology Institute, Pllc

Huntersville, North Carolina, United States

Site Status COMPLETED

University of Pennsylvania Abramson Cancer Center

Philadelphia, Pennsylvania, United States

Site Status RECRUITING

University of Pittsburgh Cancer Institute Cancer Services

Pittsburgh, Pennsylvania, United States

Site Status COMPLETED

Allegheny Health Network

Pittsburgh, Pennsylvania, United States

Site Status NOT_YET_RECRUITING

Tennessee Oncology

Nashville, Tennessee, United States

Site Status NOT_YET_RECRUITING

Texas Oncology

Austin, Texas, United States

Site Status WITHDRAWN

Texas Oncology-Fort Worth South Henderson

Fort Worth, Texas, United States

Site Status RECRUITING

Virginia Cancer Institute

Fairfax, Virginia, United States

Site Status RECRUITING

University of Wisconsin

Madison, Wisconsin, United States

Site Status NOT_YET_RECRUITING

Institut Bergonie

Bordeaux, , France

Site Status RECRUITING

Centre Leon Berard

Lyon, , France

Site Status RECRUITING

Institut Curie

Paris, , France

Site Status WITHDRAWN

Universitaire Du Cancer de Toulouse Institut Claudius Regaud Iuct-Oncopole

Toulouse, , France

Site Status RECRUITING

Institut Gustave Roussy

Villejuif, , France

Site Status RECRUITING

Fondazione Irccs Istituto Nazionale Dei Tumori

Milan, , Italy

Site Status RECRUITING

Istituto Nazionale Tumori Irccs Fondazione Pascale

Naples, , Italy

Site Status COMPLETED

Policlinico Universitario Agostino Gemelli Universita Cattolica Del Sacro Cuore

Rome, , Italy

Site Status RECRUITING

Irccs Istituto Clinico Humanitas

Rozzano, , Italy

Site Status RECRUITING

Centro Ricerche Cliniche Di Verona

Verona, , Italy

Site Status RECRUITING

Aichi Cancer Center Hospital

Aichi, , Japan

Site Status RECRUITING

National Cancer Center Hospital East

Chiba, , Japan

Site Status RECRUITING

Saitama Medical University International Medical Center

Hidaka-shi, , Japan

Site Status RECRUITING

National Cancer Center Hospital

Tokyo, , Japan

Site Status RECRUITING

The Cancer Institute Hospital of Jfcr

Tokyo, , Japan

Site Status RECRUITING

Netherlands Cancer Institute Antoni Van Leeuwenhoek Ziekenhuis

Amsterdam, , Netherlands

Site Status RECRUITING

Erasmus Medical Center

Rotterdam, , Netherlands

Site Status RECRUITING

Panoncology Trials Pan American Center For Oncology Trials, Llc

Rio Piedras, , Puerto Rico

Site Status RECRUITING

Oncological Institute of Southern Switzerland

Bellinzona, , Switzerland

Site Status RECRUITING

Inselspital Universitatsklinik Fur Medizinische Onkologie

Bern, , Switzerland

Site Status RECRUITING

Centre Hospitalier Universitaire Vaudois (Chuv)

Lausanne, , Switzerland

Site Status RECRUITING

Guys Hospital

London, , United Kingdom

Site Status RECRUITING

Imperial College Healthcare Nhs Trust - Hammersmith Hospital

London, , United Kingdom

Site Status RECRUITING

The Christie Nhs Foundation Trust Uk

Manchester, , United Kingdom

Site Status WITHDRAWN

Northern Centre For Cancer Care

Newcastle upon Tyne, , United Kingdom

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States France Italy Japan Netherlands Puerto Rico Switzerland United Kingdom

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Incyte Corporation Call Center (US)

Role: CONTACT

Phone: 1.855.463.3463

Email: [email protected]

Incyte Corporation Call Center (ex-US)

Role: CONTACT

Phone: +800 00027423

Email: [email protected]

Related Links

Access external resources that provide additional context or updates about the study.

https://incyteclinicaltrials.com/studies/incb-123667-101

Study of INCB123667 in Subjects with Advanced Solid Tumors

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2021-005357-91

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

INCB 123667-101

Identifier Type: -

Identifier Source: org_study_id