A Study of MGC018 in Combination With MGD019 in Participants With Advanced Solid Tumors

NCT ID: NCT05293496

Last Updated: 2025-10-14

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

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

31 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-04-19

Study Completion Date

2025-08-26

Brief Summary

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Study CP-MGC018-02 is a study of vobramitamab duocarmazine (MGC018) in combination with lorigerlimab (MGD019). The study is designed to characterize safety, tolerability, pharmacokinetics (PK), immunogenicity, pharmacodynamics, and preliminary antitumor activity. Participants with relapsed or refractory, unresectable, locally advanced or metastatic solid tumors including, but not limited to, metastatic castration-resistant prostate cancer (mCRPC), melanoma, pancreatic cancer, hepatocellular carcinoma (HCC), ovarian cancer, and renal cell carcinoma (RCC) will be enrolled.

Vobramitamab duocarmazine and lorigerlimab are administered separately on Day 1 of every 4-week (28-day) cycle at the assigned dose for each cohort. Participants who do not meet criteria for study drug discontinuation may receive study drugs for up to 2 years.

Tumor assessments are performed every 8 weeks (± 7 days) for the initial 6 months on study drugs, then every 12 weeks (± 21 days) until progressive disease (PD).

Participants will be followed for safety throughout the study. .

Detailed Description

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Conditions

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Advanced Solid Tumor Castration-Resistant Prostatic Cancer Malignant Melanoma Pancreatic Ductal Carcinoma Hepatocellular Cancer Epithelial Ovarian Cancer Renal Cell Carcinoma

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort -1

vobramitamab duocarmazine at dose level -1 and lorigerlimab intravenously (IV) every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Cohort 1

vobramitamab duocarmazine at dose level 1 and lorigerlimab IV every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Cohort 2

vobramitamab duocarmazine at dose level 1 and lorigerlimab IV every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Cohort 3

vobramitamab duocarmazine at dose level 2 and lorigerlimab IV every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Cohort 4

vobramitamab duocarmazine at dose level 3 and lorigerlimab IV every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Cohort 5

vobramitamab duocarmazine at dose level 4 and lorigerlimab IV every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Cohort Expansion

maximum tolerated dose of vobramitamab duocarmazine and lorigerlimab IV every 4 weeks

Group Type EXPERIMENTAL

vobramitamab duocarmazine

Intervention Type BIOLOGICAL

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

lorigerlimab

Intervention Type BIOLOGICAL

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Interventions

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vobramitamab duocarmazine

Vobramitamab duocarmazine is an antibody drug conjugate (ADC) targeted against B7-H3.

Intervention Type BIOLOGICAL

lorigerlimab

Lorigerlimab is a bispecific DART® molecule that binds PD-1 and CTLA-4.

Intervention Type BIOLOGICAL

Other Intervention Names

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MGC018 MGD019

Eligibility Criteria

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Inclusion Criteria

* 1\. Ability to provide and document informed consent and willing and able to comply with all study procedures.
* Participants diagnosed with advanced solid tumors including but not limited to metastatic castration-resistant prostate cancer, melanoma, pancreatic cancer, hepatocellular carcinoma, ovarian cancer and renal cell carcinoma.
* Participants have received approved therapies according to their diagnosis.
* Participants must have an available tumor tissue sample. A fresh tumor biopsy may be performed if no archival sample is available.
* Eastern Cooperative Oncology Group performance status of less than or equal to 2.
* Life expectancy of at least 12 weeks.
* Evidence of measurable tumor for evaluation
* Acceptable end organ function according to laboratory results.
* Patients must agree to use highly-effective contraception during the study, and not donate sperm or ova.

Exclusion Criteria

* Any underlying medical or psychiatric condition impairing participant's ability to receive, tolerate, or comply with the planned treatment or study procedures.
* Another malignancy that required treatment within the past 2 years. Participants who have had curative therapy for non-melanomatous skin cancer, localized prostate cancer (Gleason score \< 6), or carcinoma in situ are eligible for the study.
* Active viral, bacterial, or fungal infection requiring systemic treatment within 1 week of initiation of study drug. Participants are eligible after SARS CoV 2-related symptoms have fully recovered for ≥ 72 hours.
* History of immunodeficiency. Participants with HIV are eligible if they have a CD4+ count ≥ 300/µL, undetectable viral load, and maintained on antiretroviral therapy for a minimum of 4 weeks.
* Prior autologous/allogeneic stem cell or tissue/solid organ transplant
* Prior treatment with MGD009, enoblituzumab, or other B7-H3 targeted agents for cancer.
* Clinically significant cardiovascular disease, lung compromise, venous insufficiency, or gastrointestinal disorders.
* Participants with greater than Grade 1 peripheral neuropathy.
* Participants who have a history of severe adverse events (AEs) from immune checkpoint inhibitors (anti-PD-1, anti-PD-L1, or CTLA-4 inhibitors). All other AEs from prior immune checkpoint inhibitors must be resolved to Grade 1 or less. Participants with any grade neurologic toxicity from prior immune checkpoint inhibitors are excluded.
* Pleural effusion or ascites. Trace pleural or peritoneal fluid is not exclusionary.
* History of Guillain-Barre syndrome, myasthenia gravis, or other autoimmune sensory or motor neuropathies.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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MacroGenics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Denise Casey, M.D.

Role: STUDY_DIRECTOR

MacroGenics

Locations

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University of California, Los Angeles

Los Angeles, California, United States

Site Status

University of California, San Francisco

San Francisco, California, United States

Site Status

Florida Cancer Specialists and Research Institute

Sarasota, Florida, United States

Site Status

Winship Cancer Institute of Emory University

Atlanta, Georgia, United States

Site Status

Johns Hopkins Sidney Kimmel Comprehensive Cancer Center

Baltimore, Maryland, United States

Site Status

Weill Cornell Medicine

New York, New York, United States

Site Status

Carolina BioOncology

Huntersville, North Carolina, United States

Site Status

Stephenson Cancer Center, The University of Oklahoma

Oklahoma City, Oklahoma, United States

Site Status

University of Pittsburgh Medical Center, Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status

University of Virginia Comprehensive Cancer Center

Charlottesville, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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CP-MGC018-02

Identifier Type: -

Identifier Source: org_study_id

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