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Study identifier: NCT05999396 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

FIH, Bispecific CD276xCD3 Antibody CC-3 in Patients With Colorectal Cancer

Condition: Colorectal Cancer · Breast Carcinoma · Sarcoma  ·  Sponsor: German Cancer Research Center

PhasePhase 1
Planned participants89
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This trial is a first in human (FIH) clinical trial in patients with Colorectal cancer (CRC) after failure of at least three lines of previous therapy aiming to evaluate safety and efficacy of CC-3, a bispecific antibody (bsAb) with CD276xCD3 specificity developed within DKTK. CC-3 binds to CD276 on cancer cells as well as to tumor vessels of CRC, thereby allowing for a dual mode of anti-cancer action. CC-3 was developed in a novel format which not only prolongs serum half-life, but most importantly reduces off-target T cell activation with expected fewer side effects. A similar construct in this format with PSMAxCD3 specificity is presently undergoing clinical evaluation in patients with prostate cancer (NCT04104607), with very favorable safety and preliminary efficacy. The optimized format that CC-3 shares with its PSMAxCD3 "sister molecule" allows for application of effective bsAb doses with expected high anticancer activity. The clinical trial comprises two phases: The first phase is a dose-escalation part to evaluate the maximally tolerated dose (MTD) of CC-3. This is followed by a dose-expansion part to defined the recommended phase II dose. A translational research program comprising, among others, analysis of CC-3 half-life and the induced immune response will serve to better define the mode of action of CC-3.

This description comes directly from the study's public registry record.

Talk to the study team

Juliane Walz, Prof. Dr.  ·  +49 7071 29  ·  kketi@med.uni-tuebingen.de

Jonas Heitmann, Dr.  ·  +49 7071 29  ·  kketi@med.uni-tuebingen.de

Always discuss trial participation with your own doctor first.

Locations (1)

University Hospital TuebingenTübingen, Baden-Wurttemberg, GermanyRecruiting

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Source record: clinicaltrials.gov/study/NCT05999396