Study of ECI830 Single Agent or in Combination in Patients With Advanced HR+/HER2- Breast Cancer and Other Advanced Solid Tumors

NCT ID: NCT06726148

Last Updated: 2025-11-12

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

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

280 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-03

Study Completion Date

2028-09-25

Brief Summary

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Phase I: Characterize safety and tolerability of ECI830 as a single agent and in combination with ribociclib and fulvestrant. Identify dose range for optimization/recommended dose for future studies.

Phase II: Assess the anti-tumor activity of ECI830 in combination with ribociclib and fulvestrant in patients with hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) advanced breast cancer.

Detailed Description

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This is a first-in-human, open-label, phase I/II, multi-center study consisting of an ECI830 single agent treatment arm in patients with advanced HR+/HER2- breast cancer or other advanced solid tumors harboring CCNE1 amplification and a combination treatment arm of ECI830 with ribociclib and fulvestrant in patients with advanced breast cancer. Single agent escalation may be followed by an expansion part stratified by disease indication. The escalation of the combination arm may continue into a randomized, open label, Phase II with optional dose optimization in advanced breast cancer patients.

Conditions

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Advanced HR+/HER2- Breast Cancer Advanced CCNE1-amplified Solid Tumors

Keywords

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ECI830 Ribociclib Fulvestrant Breast cancer CCNE1 amplification

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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ECI830 Single Agent (Arm A)

Phase I

Group Type EXPERIMENTAL

ECI830

Intervention Type DRUG

Experimental

Dose Escalation Combination ECI830 + ribociclib + fulvestrant (Arm B)

Phase I

Group Type EXPERIMENTAL

ECI830

Intervention Type DRUG

Experimental

ribociclib

Intervention Type DRUG

Approved medication

fulvestrant

Intervention Type DRUG

Approved medication

Ribociclib in combination with fulvestrant (Arm C)

Phase II

Group Type EXPERIMENTAL

ribociclib

Intervention Type DRUG

Approved medication

fulvestrant

Intervention Type DRUG

Approved medication

ECI830 in combination with fulvestrant (Arm D)

Phase II

Group Type EXPERIMENTAL

ECI830

Intervention Type DRUG

Experimental

fulvestrant

Intervention Type DRUG

Approved medication

ECI830 in combination with ribociclib and fulvestrant (Arm E)

Phase II

Group Type EXPERIMENTAL

ECI830

Intervention Type DRUG

Experimental

ribociclib

Intervention Type DRUG

Approved medication

fulvestrant

Intervention Type DRUG

Approved medication

ECI830 in combination with ribociclib and fulvestrant (Arm F)

Phase II

Group Type EXPERIMENTAL

ECI830

Intervention Type DRUG

Experimental

ribociclib

Intervention Type DRUG

Approved medication

fulvestrant

Intervention Type DRUG

Approved medication

Interventions

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ECI830

Experimental

Intervention Type DRUG

ribociclib

Approved medication

Intervention Type DRUG

fulvestrant

Approved medication

Intervention Type DRUG

Other Intervention Names

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Kisqali Faslodex

Eligibility Criteria

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Inclusion Criteria

Age ≥ 18 years old.

Patients with one of the following indications:

Phase I:

HR+/HER2- aBC with disease progression on or following at least one line of hormone-based therapy in combination with a CDK4/6i and at least one additional line of systemic therapy for metastatic disease.

Histologically and/or cytologically confirmed diagnosis of locally advanced or metastatic cancer with a CCNE1 amplification. For dose expansion only: no more than 3 prior lines of therapy for advanced or metastatic disease.

Phase II:

HR+/HER2- aBC with disease progression on an aromatase inhibitor or tamoxifen in combination with a CDK4/6 inhibitor for unresectable/metastatic disease with no more than 2 lines of endocrine therapy.

Measurable disease as determined by RECIST v1.1.

BC only: If no measurable disease is present, then at least one predominantly lytic bone lesion must be present that can be accurately assessed at baseline and is suitable for repeated assessment.

Exclusion Criteria

Previous treatment with a CDK2 inhibitor at any time.

Patients with inadequate bone marrow and/or organ functions with out-of-range laboratory values.

Clinically significant, uncontrolled heart disease and/or cardiac repolarization abnormality including MI, CABG, long QT syndrome, or risk factors for TdP.

Presence of symptomatic CNS metastases or CNS metastases that require local therapy or increasing doses of corticosteroids within 2 weeks prior to study entry.

For the combination treatment:

Patients with symptomatic visceral disease or any disease burden that makes the patient ineligible for endocrine-based therapy.

Patients who could not tolerate the prescribed dose of ribociclib during a previous course of treatment, requiring dose reduction or permanent discontinuation due to adverse events.

For patients with BC: Patient is concurrently using hormone replacement therapy.

WOCBP who are unwilling to use highly effective contraception methods, pregnant or nursing women.
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Novartis Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of California LA

Los Angeles, California, United States

Site Status RECRUITING

Florida Cancer Specialists

Fort Myers, Florida, United States

Site Status RECRUITING

Dana Farber Cancer Institute

Boston, Massachusetts, United States

Site Status RECRUITING

WA Uni School Of Med

St Louis, Missouri, United States

Site Status RECRUITING

Memorial Sloan Kettering

New York, New York, United States

Site Status RECRUITING

SCRI Oncology Partners

Nashville, Tennessee, United States

Site Status RECRUITING

MD Anderson Cancer Center Uni of Te

Houston, Texas, United States

Site Status RECRUITING

Fred Hutch Cancer Research

Seattle, Washington, United States

Site Status RECRUITING

Novartis Investigative Site

Clayton, Victoria, Australia

Site Status RECRUITING

Novartis Investigative Site

Melbourne, Victoria, Australia

Site Status RECRUITING

Novartis Investigative Site

Toronto, Ontario, Canada

Site Status RECRUITING

Novartis Investigative Site

Copenhagen, , Denmark

Site Status RECRUITING

Novartis Investigative Site

Odense C, , Denmark

Site Status RECRUITING

Novartis Investigative Site

Ulm, , Germany

Site Status RECRUITING

Novartis Investigative Site

Haifa, , Israel

Site Status RECRUITING

Novartis Investigative Site

Tel Aviv, , Israel

Site Status RECRUITING

Novartis Investigative Site

Chuo Ku, Tokyo, Japan

Site Status RECRUITING

Novartis Investigative Site

Singapore, , Singapore

Site Status RECRUITING

Novartis Investigative Site

Seoul, , South Korea

Site Status RECRUITING

Novartis Investigative Site

Tainan, , Taiwan

Site Status RECRUITING

Countries

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United States Australia Canada Denmark Germany Israel Japan Singapore South Korea Taiwan

Central Contacts

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Novartis Pharmaceuticals

Role: CONTACT

Phone: 1-888-669-6682

Email: [email protected]

Novartis Pharmaceuticals

Role: CONTACT

Phone: +41613241111

Email: [email protected]

Facility Contacts

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Dashika Wijegooneratne

Role: primary

Marissa Lisle

Role: primary

Marco Reyes

Role: primary

Tracy Summa

Role: primary

Sam Stefanik

Role: primary

Megan Michela

Role: primary

Benjamin Batista Ramos

Role: primary

Hannah Lee

Role: primary

Other Identifiers

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2024-517281-42

Identifier Type: REGISTRY

Identifier Source: secondary_id

CECI830A12101

Identifier Type: -

Identifier Source: org_study_id