A Study to Investigate the Safety, Tolerability, Pharmacokinetics, and Anti-tumor Activity of CBI-1214 T Cell Engager in Participants With Advanced or Metastatic MSS/MSI-L Colorectal Cancer

NCT ID: NCT07321106

Last Updated: 2026-01-06

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

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-31

Study Completion Date

2029-10-31

Brief Summary

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This study will investigate the safety, tolerability, pharmacokinetics, and anti-tumor activity of CBI-1214 in participants with advanced or metastatic Microsatellite Stable (MSS)/Microsatellite Instability Low (MSI-L) Colorectal Cancer

Detailed Description

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Conditions

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Colorectal Cancer Colorectal Cancer (CRC) Colorectal (Colon or Rectal) Cancer CRC Metastatic Colon Cancer Colon Cancer Advanced Colorectal Cancer

Study Design

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Allocation Method

NA

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Dose escalation and optimization trial of CBI-1214

Participants will be assigned sequentially to escalating doses of CBI-1214. Once dose escalation is completed, a recommended expansion dose will be proposed for the dose-expansion stage of the trial.

Group Type EXPERIMENTAL

CBI-1214

Intervention Type BIOLOGICAL

CBI-1214 is a bispecific T cell engager that binds to LY6G6D and CD3. It is designed to link the patients T cells to cancer cells and to mediate tumor cell killing. LY6G6D is an emerging target specifically expressed on malignant colorectal cancer cells.

Interventions

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CBI-1214

CBI-1214 is a bispecific T cell engager that binds to LY6G6D and CD3. It is designed to link the patients T cells to cancer cells and to mediate tumor cell killing. LY6G6D is an emerging target specifically expressed on malignant colorectal cancer cells.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Participant with MSS/MSI-L CRC, who has exhausted at least one prior line of standard systemic therapy for their current malignancy.
* Participant with genomic aberrations, including but not limited to BRAFV600E mutations and HER2 amplifications, for which FDA-approved targeted therapies are available, must:

* Have received prior treatment with applicable FDA-approved targeted therapies AND
* Either have experienced disease progression, be refractory, or be intolerant to directed molecular therapy.
* Participant able to provide archival tissue sample or fresh biopsy tissue sample

Exclusion Criteria

* Participant whose CRC tumor tissues have been identified as dMMR or MSI-H
* Known history of solid organ or tissue transplant; history of interstitial lung disease or non-infectious pneumonitis.
* Untreated central nervous system (CNS) metastatic disease.
* Active autoimmune disease that has required systemic treatment within the past 2 years (participants with hormone replacement therapy for adequately controlled endocrinopathy are allowed in the study).
* History of recent infection (within 4 weeks of C1D1) considered to be caused by one of the pathogens: HSV1, HSV2, VZV, EBV, CMV, measles, Influenza A, Zika virus, Chikungunya virus, mycoplasma pneumonia, Campylobacter jejuni, or enterovirus D68.
* Known seropositive for human immunodeficiency virus, hepatitis B surface antigen, or antibody to hepatitis C virus with confirmatory testing and requiring anti-viral therapy.
* History of Steven's Johnson's syndrome or toxic epidermal necrolysis syndrome.
* Significant medical comorbidities, including uncontrolled hypertension (diastolic blood pressure \>115 mm Hg), unstable angina, congestive heart failure (greater than New York Heart Association class II), severe uncontrolled ventricular arrhythmias, or electrocardiographic evidence of acute ischemia, poorly controlled diabetes, severe chronic pulmonary disease, coronary angioplasty, or myocardial infarction within 6 months prior to screening, or uncontrolled atrial or ventricular cardiac arrhythmias.
* Congenital long QT syndrome or a corrected QT interval (QTc) ≥480 ms at screening (unless secondary to pacemaker or bundle branch block).
* Active second primary malignancy within 3 years of Screening other than non-melanoma skin cancers, nonmetastatic prostate cancer, in situ cervical cancer, or ductal or lobular carcinoma in situ of the breast
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cartography Biosciences

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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NEXT Oncology

San Antonio, Texas, United States

Site Status RECRUITING

NEXT Oncology

Fairfax, Virginia, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Study Lead

Role: CONTACT

833-318-4749

Facility Contacts

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Jordan Georg

Role: primary

(210) 580-9521

Maybelle De La Rosa

Role: primary

(703) 783-4518

Other Identifiers

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CBI-1214-001

Identifier Type: -

Identifier Source: org_study_id

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