Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT04659603 · ClinicalTrials.gov registry record · Phase 2

Tusamitamab Ravtansine Monotherapy and in Combination in Patients With CEACAM5-positive Advanced Solid Tumors

A Phase 2 study, sponsored by Sanofi.

Terminated
Registry status
Phase 2
Development phase
50
Enrollment target

NCT04659603: Clinical Trial Phase 2 study, sponsored by Sanofi.

NCT04659603 is a Phase 2 study that was terminated before completion, run by Sanofi. The registered enrollment target is 50 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (62% lower). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT04659603, a Phase 2 study, was terminated before completion, sponsored by Sanofi.

TERMINATED
Registry status
Phase 2
Development phase
50 participants
Enrollment target

Study Summary

Primary Objective: * For Cohort A, Cohort B, and Cohort C Part 2: To assess the antitumor activity of tusamitamab ravtansine in metastatic breast cancer (mBC) and tusamitamab ravtansine monotherapy and in combination with gemcitabine in metastatic pancreatic adenocarcinoma (mPAC) * For Cohort C Part 1: Confirmation of the recommended tusamitamab ravtansine dose when administered in combination with gemcitabine Secondary Objectives: * To assess the safety and tolerability of tusamitamab ravtansine administered as monotherapy and in combination with gemcitabine * To assess other efficacy parameters of tusamitamab ravtansine administered as monotherapy and in combination with gemcitabine * To assess the immunogenicity of tusamitamab ravtansine * To assess the pharmacokinetics (PK) of tusamitamab ravtansine and gemcitabine when given in combination

Primary Outcome

ORR was defined as the percentage of participants with a confirmed complete response (CR) or partial response (PR) as per Response Evaluation Criteria in Solid Tumors (RECIST) version (v) 1.1. CR was defined as disappearance of all target and non-target lesions, and normalization of tumor marker level. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeter (mm). PR was defined as at least a 30% decrease in the sum of diameter

Interventions

  • DRUG Gemcitabine
  • DRUG tusamitamab ravtansine

Trial Details

FieldValue
Enrollment Target 50 participants
Start Date 2021-03-29
Est. Completion 2025-01-19
Phase Phase 2
Sanofi

713 total trials

Why NCT04659603 stopped before completion

NCT04659603 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 50 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (62% lower).

The record links to 0 conditions, and to 2 interventions - of which Gemcitabine is the first listed.

NCT04659603 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04659603 about?

NCT04659603 is a clinical study titled "Tusamitamab Ravtansine Monotherapy and in Combination in Patients With CEACAM5-positive Advanced Solid Tumors". Primary Objective: * For Cohort A, Cohort B, and Cohort C Part 2: To assess the antitumor activity of tusamitamab ravtansine in metastatic breast cancer (mBC) and tusamitamab ravtansine monotherapy and in combination with gemcitabine in metastatic pancreatic adenocarcinoma (mPAC) * For Cohort C Par...

What is the current status of trial NCT04659603?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 50 participants. The study started on 2021-03-29. Estimated completion is 2025-01-19.

What interventions are being tested in trial NCT04659603?

The interventions under investigation include: Gemcitabine (DRUG), tusamitamab ravtansine (DRUG).

Who is sponsoring clinical trial NCT04659603?

This trial is sponsored by Sanofi, which has 713 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04659603's enrollment target sits among peer trials

50 1195th of 2000 higher than 740 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT00200889 · 50 participants · Early Phase 1

    Mapping Auricular Vagus Nerve Circuitry

  • NCT00409435 · 50 participants · Phase 2

    A Study of Pyridostigmine in Postural Tachycardia Syndrome

  • NCT01202305 · 50 participants

    The Use of Lymph Node Biopsies to Support HIV Pathogenesis Studies

  • NCT01225913 · 50 participants · Phase 4

    Mechanism(s) of Airflow Limitation During Exacerbation of Asthma

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT04659603, the US trial registry maintained by the National Library of Medicine. NCT04659603 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.