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NCT Number: NCT07659795

A Phase 2 Study of VS-7375 in Patients With KRAS G12D-Mutated Colorectal Cancer

This study will assess the safety and efficacy of VS-7375 alone and in combination with cetuximab or panitumumab and cetuximab plus mFOLFOX in patients with metastatic KRAS G12D - mutated Colorectal Cancer

Recruiting

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Icon Cancer Centre South Brisbane, South Brisbane, Queensland, Australia

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Histopathology confirmed metastatic CRC
  • Measurable disease per RECIST 1.1
  • Local testing confirmed KRAS G12D mutation (tissue required for confirmatory central testing)
  • ECOG PS=0 or 1

2L+ patients:

  • Must have received at least 1 standard chemotherapy for metastatic colorectal adenocarcinoma
  • Have documented disease progression during or following their most recent prior line of therapy
  • Have either stable disease, partial response (PR), or complete response (CR) by RECIST v1.1 as the best overall response (BOR) during at least 1 prior systemic therapy.

1L patients:

  • Treatment-naïve or received no more than 1 cycle of standard systemic therapy for metastatic disease.

Exclusion criteria

  • Have any other documented co-existing common RAS mutation(s)
  • Prior anti-cancer Tx within 4 weeks or drug-specific timeline within first treatment dose, whichever shorter
  • Major surgery within 4 weeks of first treatment dose
  • Radiation therapy (RT) within 1 week of first treatment dose
  • Receipt of prior direct RAS inhibitor
  • Receipt of more than 1 investigational therapy
  • Untreated or symptomatic CNS metastasis
  • Receipt of strong CYP3A4 inhibitor/inducer or CYP3A4 sensitive substrates with narrow therapeutic index within 14 days or drug-specific timeline within first treatment dose, whichever is shorter
  • Receipt of PPI or H2 blocker within 5 days
  • Inability to swallow oral medication
  • Other protocol-defined inclusion/exclusion criteria may apply

Treatment and study plan

VS-7375

Drug

Taken by mouth

Cetuximab

Drug

Intravenous infusion

Panitumumab

Drug

Intravenous infusion

Cetuximab + mFOLFOX6

Drug

Intravenous infusion

Primary outcomes

  1. Confirmed ORR by blinded independent central review (BICR) per RESIST v1.1 - 2L CRC only

    Time frame: 6 months

    Overall Response Rate per RECIST version 1.1, per blinded independent central review (BICR)

  2. To characterize the safety and tolerability of VS-7375 monotherapy or in combination with cetuximab or panitumumab, administered on a daily oral schedule in participants with KRAS G12D-mutated 2L+ CRC

    Time frame: 6 months

    Proportion/number of participants with AEs, TEAEs, TRAEs, SAEs, and dose interruptions/reductions and discontinuations

  3. To characterize the safety and tolerability of VS-7375 in combination with cetuximab + mFOLFOX, administered on a daily oral schedule in participants with KRAS G12D-mutated 1L CRC

    Time frame: 6 months

    Proportion/number of participants with AEs, TEAEs, TRAEs, SAEs, and dose interruptions/reductions and discontinuations

Secondary outcomes

  1. Confirmed ORR per RECIST v1.1 assessed by BICR (primary) and Investigator (secondary) assessments

    Time frame: 24 months

    To evaluate additional efficacy parameters of VS-7375 monotherapy and VS-7375 in combination with cetuximab or panitumumab or cetuximab + mFOLFOX, administered on a daily oral schedule in participants with KRAS G12D-mutated CRC

  2. Plasma Pharmacokinetics (PK) of VS-7375 and relevant metabolites, Cmax

    Time frame: 20 weeks

    Maximum concentration (Cmax)

  3. Plasma Pharmacokinetics (PK) of VS-7375 and relevant metabolites, AUC

    Time frame: 20 weeks

    Area under plasma Concentration (AUC) 0 to t

  4. To evaluate Pharmacodynamics (PD) and other relevant blood tumor markers specific to tumor type

    Time frame: Up to 2.5 years

    CA19-9, CEA, CA-125

  5. To assess the health-related quality of life and disease based on European Organization for Research and Treatment of Cancer (EORTC) Quality of life Questionnaire Core module C30 (QLQ-C30)

    Time frame: 24 months

    The EORTC QLQ-C30 is a validated questionnaire to assess the quality of life of colorectal cancer patients

  6. Time to next therapy

    Time frame: 24 months

    To assess the interval between initiation of study treatment and initiation of subsequent treatment

Other outcomes

  1. Imaging of tumor metabolism changes in 2L monotherapy patients

    Time frame: 24 months

    To assess tumor metabolism dynamics on FDG-PET/CT

Study contacts

Contact information is provided by the study sponsor or research team.

Luke Chung, MD

CONTACT

[email protected]

Verastem Call Center

CONTACT

[email protected]

7812924204

Sponsors and collaborators

Lead sponsor

Verastem, Inc.

Industry

Registry information

Official study title

A Phase 2, Open-label Study of VS-7375, an Oral KRAS G12D (ON/OFF) Inhibitor, With and Without an Anti-EGFR Antibody, and With an Anti-EGFR Antibody and Chemotherapy, in Patients With Metastatic KRAS G12D-Mutated Colorectal Adenocarcinoma (TARGET-D 203)

Acronym: TARGET-D 203

Important dates

Study start
2026
Primary completion
2027
Study completion
2028
First posted
Jun 22, 2026
Registry last updated
Jul 27, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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