Clinical Trials Logo

Clinical Trial Summary

Patients with early breast cancer and accessible tumor lesions (1.00 to 10 ml volume) that are eligible to either surgical removal of their tumor or neoadjuvant chemotherapy will be injected with the IMP. Patients will be either treated with placebo (buffer alone, 12 patients) or with TriMix mRNA at three dose levels [8 at dose level I (1mg/ml), 8 at dose level II (3mg/ml), and 8 at dose level III (6mg/ml). The volume injected in this group will be adjusted to the tumour volume to ensure a perfusion of around 33% of the tumour volume (33% +/- 5%). Therefore, depending on the patients' tumour size, 500, 1000 or 2000 µl of TriMix mRNA solution or placebo solution will be injected into each tumor. Each patient will receive three administrations of TriMix prior to start of general treatment (surgery or neoadjuvant chemotherapy) separated by one week (7 days +/- 2 days) interval. The last administration will be performed 2 days preoperatively or start of neoadjuvant chemotherapy. The tumor and peripheral blood samples will be analyzed for immunological changes. If it is decided by the multidisciplinary team that neoadjuvant therapy is more appropriate for the patient, a second tumor biopsy (instead of surgical resection) will be taken 2 days after third administration of TriMix mRNA to assess immunological changes within the tumor. Similarly, patients that refuses to undergo surgery or to receive neoadjuvant chemotherapy can be enrolled into the trial, if they accept three administrations of TriMix followed by a second tumor biopsy. The study will start with recruitment of the placebo group. The enrollment of the first three patients in each cohort with Trimix mRNA will be staggered with at least one day between the first dose of each individual patient. One week after the third patient of a cohort received the third TriMix mRNA administration, an overall evaluation of the safety and tolerability of this cohort will be done by the principal investigator. The results will be reviewed by an in-house dose evaluation committee overseeing the safety and tolerability of TriMix mRNA.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT03788083
Study type Interventional
Source Universitair Ziekenhuis Brussel
Contact UZ Brussel
Phone +32 2 477 6015
Email borstkliniek@uzbrussel.be
Status Recruiting
Phase Phase 1
Start date November 12, 2018
Completion date December 30, 2024

See also
  Status Clinical Trial Phase
Completed NCT03080623 - Ultrasound-based Diagnostic Model for Differentiating Malignant Breast Lesion From Benign Lesion
Completed NCT05527769 - Pain and Functional Recovery After Mastectomy and IBR by Implant: Prepectoral Versus Subpectoral Technique
Completed NCT06376578 - Exercise Interventions for Improving Health in Breast Cancer Survivors N/A
Completed NCT03004534 - A Study to Evaluate Changes in Human Breast Cancer Tissue Following Short-Term Use of Darolutamide Early Phase 1
Recruiting NCT05020574 - Microbiome and Association With Implant Infections Phase 2
Active, not recruiting NCT06277141 - The Vitality Mammography Messaging Study N/A
Completed NCT03555227 - USG PECS vs LIA for Breast Cancer Surgery N/A
Completed NCT03270111 - High Physical Activity During a Weight Loss Intervention for Breast Cancer Survivors and High Risk Women N/A
Active, not recruiting NCT03917082 - Limited Adjuvant Endocrine Therapy for Low Risk Breast Cancer Phase 2
Recruiting NCT05561842 - Tablet-based Mobile Health Ultrasound for Point-of-care Breast Cancer Diagnosis in Nigeria (Mobile Health: Technology and Outcomes in Low and Middle-Income Countries)
Completed NCT04554056 - Trial to Compare the Efficacy and Safety Of MW05 and PEG-rhG-CSF Phase 2/Phase 3
Active, not recruiting NCT03127995 - Hypofractionated vs Standard Radiotherapy in Breast Cancer With an Indication for Regional Lymph Node Irradiation About Lymphedema Occurrence N/A
Active, not recruiting NCT02237469 - Prone Breast Radiotherapy Treatment Planning Observational Study
Completed NCT01204125 - Two Regimens of SAR240550/Weekly Paclitaxel and Paclitaxel Alone as Neoadjuvant Therapy in Triple Negative Breast Cancer Patients Phase 2
Recruiting NCT04565054 - Adjuvant Therapy With Abemaciclib + SOC ET vs. SOC ET in Clinical or Genomic High Risk, HR+/HER2- EBC Phase 3
Not yet recruiting NCT06412133 - Conversations in Light and Shadow: Assessing Phototherapy's Impact on Breast Cancer Patients N/A
Recruiting NCT03956641 - Evolution of the Physical Condition in Treated Cancer Patients N/A
Recruiting NCT06087120 - Investigate the Prognostic and Predictive Value of ctDNA During Neoadjuvant Chemotherapy for Breast Cancer.
Recruiting NCT06058936 - Exercises Using Virtual Reality on Cancer Patients N/A
Completed NCT03470935 - Non-interventional Study Evaluating Gynecological Impact of Diagnosis and Treatment of Breast Cancer in Patients Younger