Monitoring circulating tumor DNA in early breast cancer patients

Monitoring Circulating Tumor DNA in Patients With Early Stage Breast Cancer

Observational Geneplus-Beijing Co. Ltd. · NCT04353557

This study is testing if tracking a specific type of DNA in the blood can help doctors understand how well treatments are working for people with early-stage breast cancer.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorGeneplus-Beijing Co. Ltd. Industry-sponsored
Drugs / interventionschemotherapy
Locations1 site (Chongqing, Chongqing Municipality)
Trial IDNCT04353557 on ClinicalTrials.gov

What this trial studies

This observational study focuses on monitoring circulating tumor DNA (ctDNA) in patients diagnosed with early-stage breast cancer. It aims to assess the prognostic value of ctDNA and its role in monitoring treatment outcomes. The study will involve patients who have undergone various treatments, including neoadjuvant therapy and surgery, to evaluate how ctDNA levels correlate with their clinical progress. By analyzing blood samples, researchers hope to gain insights into the effectiveness of treatments and the potential for personalized patient care.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 80 with histologically confirmed early-stage breast cancer who are undergoing treatment.

Not a fit: Patients with severe ECOG performance status or those with a history of other cancers in the past five years may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a non-invasive method for monitoring treatment response and prognosis in early breast cancer patients.

How similar studies have performed: Other studies have shown promise in using ctDNA monitoring for cancer treatment, indicating that this approach is gaining traction in the field.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Patients aged 18 to 80 years old
2. Histologically proven primary breast cancer with clinical stage I-III
3. Patients with neoadjuvant therapy, and/or radical surgery/breast conserving surgery, adjuvant chemotherapy and target therapy (Her2+), radiotherapy (if indicated).
4. Expected to achieve R0 resection.
5. Estimated lifetime is more than 3 months.
6. Signed Informed Consent Form
7. Consent to provide research blood samples.

Exclusion Criteria:

1. Patients intended to receive adjuvant chemotherapy with Eastern Cooperative Oncology Group (ECOG) performance status 3, 4 or 5.
2. Patients intended to receive postoperative radiotherapy with Eastern Cooperative Oncology Group (ECOG) performance status 5.
3. Prior diagnosis of cancer in the previous 5 years, other than for basal cell carcinoma of the skin or cervical carcinoma in situ.
4. Presence of any systemic illness incompatible with participation in the clinical trial or inability to provide written informed consent.

Where this trial is running

Chongqing, Chongqing Municipality

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast CancerctDNA
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.