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Spots Global Cancer Trial Database for A First-in-human Dose-escalation and Expansion Study With the Antibody-drug Conjugate SYD1875

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Trial Identification

Brief Title: A First-in-human Dose-escalation and Expansion Study With the Antibody-drug Conjugate SYD1875

Official Title: A First-in-human Dose-escalation and Expansion Study With the Antibody-drug Conjugate SYD1875 to Evaluate the Safety, Pharmacokinetics and Efficacy in Patients With 5T4-expressing Locally Advanced or Metastatic Solid Tumours

Study ID: NCT04202705

Conditions

Solid Tumor

Interventions

SYD1875

Study Description

Brief Summary: This is the first-in-human study with SYD1875, an antibody-drug conjugate (ADC) comprising of a humanized IgG1 monoclonal antibody directed against the 5T4 oncofetal antigen covalently conjugated to a duocarmycin-based linker-drug. This study includes a dose-escalation part (Part 1) in which the maximum tolerated dose (MTD) and recommended dose for expansion (RDE) will be determined, and an expansion part (Part 2) to evaluate efficacy and safety in specific patient cohorts.

Detailed Description: Cancer cells can have different kinds of proteins on their cell surface; one of these is the oncofetal antigen 5T4. 5T4 plays an important role in the development of cancer. Currently no drugs are available that work via the 5T4 antigen. The new cancer drug SYD1875 is being developed by Byondis B.V. SYD1875 is an antibody-drug conjugate and consists of two parts: an antibody and a linker-drug moiety containing a toxin. The antibody part binds to 5T4 on the surface of the cancer cell. When SYD1875 binds to this cancer cell, it will be internalized by the cell. After proteolytic cleavage of the linker, the toxin will be split off in the cell and the cancer cell will be killed. Thus, SYD1875 can be considered as a form of targeted chemotherapy. This is the first study in which SYD1875 is administered to humans. The study consists of two parts: Part 1 is the dose-escalation part in which a low dose of SYD1875 is given to cancer patients. If it is well tolerated, a higher dose of SYD1875 will be given to other cancer patients until the maximum tolerated dose is reached. In Part 2 of the study, groups of patients with a specific type of cancer will receive the SYD1875 dose which has been selected for further evaluation. All patients from both parts of the study will receive SYD1875 infusions every three weeks until progression of the cancer or unacceptable toxicity develops.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Institut Jules Bordet, Brussels, , Belgium

Institut Bergonié, Bordeaux, , France

Centre Oscar Lambret, Lille, , France

Contact Details

Name: Ellen Mommers, PhD

Affiliation: Byondis B.V., The Netherlands

Role: STUDY_DIRECTOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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