Phase 1/1b/2 Study of Oral PMD-026 in Patients With Metastatic Breast Cancer

NCT ID: NCT04115306

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

61 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-11-14

Study Completion Date

2026-10-31

Brief Summary

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The purpose of this study is to test the safety and tolerability of PMD-026 in patients with metastatic breast cancer. PMD-026 is a targeted oral agent designed to kill tumor cells in metastatic breast cancer.

Detailed Description

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Combination with fulvestrant (Part 3):

This study will prospectively enroll RSK2+, HR+, and human epidermal growth factor receptor 2 negative (HER2-) patients to evaluate PMD-026 in combination with a standard dose and schedule of fulvestrant. Fulvestrant will be dosed per the package insert in combination with PMD-026 at the RP2D determined in the monotherapy phase of the study. Up to 20 patients will be enrolled with locally advanced or metastatic HR+/HER2- breast cancer previously treated with a CDK4/6 inhibitor in combination with endocrine therapy.

Conditions

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Metastatic Breast Cancer

Keywords

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invasive breast cancer PR-negative breast cancer HER2-negative breast cancer Breast cancer Breast malignancy breast malignancies metastatic breast cancer advanced breast cancer solid tumor late stage breast cancer/late-stage breast cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Oral PMD-026 in combination with fulvestrant

Daily dosing of PMD-026 with fulvestrant dosing according to package insert

Group Type EXPERIMENTAL

PMD-026

Intervention Type DRUG

Investigational Drug

fulvestrant

Intervention Type DRUG

SERDs

Interventions

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PMD-026

Investigational Drug

Intervention Type DRUG

fulvestrant

SERDs

Intervention Type DRUG

Other Intervention Names

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Faslodex

Eligibility Criteria

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Inclusion Criteria

* RSK2 positive from available archival or fresh tumor tissue (FFPE).
* Histologically or cytologically diagnosed HR+, HER2-
* Diagnosis of adenocarcinoma of the breast with evidence of either locally advanced disease not amendable to resection or radiation with curative intent or metastatic disease not amendable to curative therapy
* Must be appropriate candidates for endocrine therapy
* Previously received at least 1 line of endocrine therapy for MBC or had recurrence while on adjuvant endocrine therapy for locally advanced breast cancer
* Discontinued endocrine therapy at least 15 days prior to first dose of PMD-026
* At least 1 measurable target lesion as defined by RECIST v1.1
* Progression on or after treatment with a CDK4/6 inhibitor in combination with endocrine therapy inhibitor in the locally advanced or metastatic setting
* Adequate hematologic, hepatic, and renal function as assessed by laboratory parameters
* Toxicity related to prior therapy resolved to at least Grade 1 (alopecia excepted) or to at least Grade 2 with prior approval of the Medical Monitor

Exclusion Criteria

* Prior chemotherapy
* ≤14 days from biological or investigational therapy
* Prior fulvestrant in the locally advanced or metastatic setting
* Presence of visceral crisis or uncontrolled visceral disease for which chemotherapy would be indicated
* Central nervous system metastases, unless appropriately treated and neurologically stable
* History of leptomeningeal metastases
* Active, uncontrolled bacterial, viral, or fungal infection(s) requiring systemic therapy
* Known hepatitis B or hepatitis C infection
* Known HIV-positive with CD4+ cell counts \<350 cells/μL
* Known HIV-positive with a history of an AIDS-defining opportunistic infection
* History of clinically significant cardiovascular abnormalities, including QTcF interval \>460 msec (using Fridericia's formula)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Phoenix Molecular Designs

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Banner MD Anderson Cancer Center

Gilbert, Arizona, United States

Site Status RECRUITING

City of Hope

Duarte, California, United States

Site Status NOT_YET_RECRUITING

City of Hope Orange County, Lennar

Irvine, California, United States

Site Status NOT_YET_RECRUITING

University of California, Los Angeles (UCLA)

Los Angeles, California, United States

Site Status RECRUITING

Moffitt Cancer Center

Tampa, Florida, United States

Site Status RECRUITING

City of Hope Chicago

Zion, Illinois, United States

Site Status NOT_YET_RECRUITING

Massachusetts General Hospital Cancer Center

Boston, Massachusetts, United States

Site Status RECRUITING

Profound Research

Farmington Hills, Michigan, United States

Site Status RECRUITING

Ohio State University

Columbus, Ohio, United States

Site Status RECRUITING

Oncology Consultants

Houston, Texas, United States

Site Status WITHDRAWN

South Texas Accelerated Research Therapeutics

San Antonio, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Phoenix Molecular Designs PMD

Role: CONTACT

Phone: (858) 945-6456

Email: [email protected]

Joseph Leveque, MD

Role: CONTACT

Phone: (858) 945-6456

Email: [email protected]

Facility Contacts

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Nibu Mathew

Role: primary

Stephanie Hernandez, CRC

Role: backup

Felicia Lewis

Role: primary

Ankita Singh

Role: primary

Monica Rocha

Role: primary

Neveen Abdo

Role: primary

Heather Johansen

Role: primary

Natalie Moffett

Role: primary

Heather Austin

Role: primary

Role: backup

Emily Viall, RN

Role: primary

Robert Wesolowski, MD

Role: backup

Isabel Jimenez, RN, MSN

Role: primary

Other Identifiers

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PMD-026-1-001

Identifier Type: -

Identifier Source: org_study_id