AzTrials
AzTrials

Breast CancerNCT05708664

Precision Breast Conserving Surgery With Guidance.

A study testing precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstruction in people with Breast Cancer, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

From 2021 to 2022, 31 patients with unifocal breast cancer were enrolled for precision breast conserving surgery (PBCS) guided by wire guided localization (WGL) combined with CT guided 3D reconstruction. Surrounded WGL was performed under local anesthesia, followed by an immediate contrast enhanced CT scan. Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Breast Cancer
What is being tested?
precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstruction
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
92 participants
Where
1 siteChina
Study dates
1 Aug 2021to 1 Jan 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • women with T1/T2 invasive breast cancer confirmed by core biopsy
  • be suitable for BCS
  • the tumor should be unilateral and unifocal which is clearly visible with US

Who cannot join

  • patients with an extensive intraductal component in invasive cancer
  • patients who were pregnant or breast-feeding
  • patients receiving neoadjuvant therapies.

Trial locations and contacts

1 site in 1 country.

China1 site
  • The First Affiliated Hospital with Nanjing Medical University

    Nanjing, Jiangsu, 210000

Other trials in China

About this study

Official title: Precision Breast Conserving Surgery With the Guidance of Localization Combined With Multidetector CT 3-dimensional Image Reconstruction: a Single Center, Prospective, Cohort Study.

From 2021 to 2022, 31 patients with unifocal breast cancer were enrolled for precision breast conserving surgery (PBCS) guided by wire guided localization (WGL) combined with CT guided 3D reconstruction. Surrounded WGL was performed under local anesthesia, followed by an immediate contrast enhanced CT scan. PBCS guided by CT guided 3D reconstruction was performed one day after the localization. Women who underwent palpation guided breast conserving surgery (BCS) were included as control. Two-sided Student t test, Fisher's exact test and chi-square test was applied.

Read the detailed description

Background Breast conserving surgery (BCS) with radiation is accepted as a standard local treatment for early-stage breast cancer. This is largely based on the results of NSABP B-06 trial, demonstrating no significant difference in survival among patients who received total mastectomy or lumpectomy [1]. More recent studies showed that the overall survival was superior for BCS compared with mastectomy [2,3,4]. Furthermore, long-term quality of life (QoL) was better in patients treated with BCS than with mastectomy [5]. Advantages in survival and QoL have led to a higher demand for BCS.

Success of BCS is characterized by negative margins and a good cosmetic outcome. This requires doctors to precisely remove the tumor while preserving as much normal tissue as possible. Current guidelines strongly recommend achieving "no ink on tumor" for invasive breast cancer (IBC) . More widely clear margins do not significantly decrease the rate of ipsilateral breast cancer recurrence (IBCR) [6]. However, conventional localization techniques only provide approximate tumor center and fail to provide tumor extents [7]. In clinical practice, doctors may remove more tissue to achieve negative margins and avoid a reoperative intervention. Among the patients treating with BCS, 30% survivals were dissatisfied with the cosmetic outcome [8].

Wire-guided localization (WGL) is a feasible, widely used technology used for the localization of nonpalpable breast lesions prior to surgical management. The flexible self-retaining wire can be inserted into the exact lesion guided by ultrasound (US) or mammography. The surgeon than uses the wire as a guide to excise the lesion [9]. At the same time, the metal needle is visible under CT. The role of multidetector CT (MDCT) is limited in the diagnosis of breast tumors [10,11]. However, MDCT has many unique advantages. First of all, patients are in the supine position during MDCT scan, which is consistent with the surgical position. Secondly, MDCT is effective for the detection of tumor extension [12]. Beside, MDCT is convenient for 3-dimensional (3D) reconstruction. MDCT guided 3D reconstruction has been widely used in clinic, including surgery guidance. Therefore, we speculate that WGL combined with MDCT can be helpful for precision breast conserving surgery (PBCS).

The aims of this cohort study were to determine whether WGL combined with MDCT guided 3D reconstruction could guide PBCS, and to access the cosmetic outcome reported by patients.

Study Design We did a single center, prospective, cohort study in one group of our department from August 2021 to June 2022. The treatment for all patients were discussed by the multi-disciplinary team in our center. The decision in this study was decided by shared decision-making between patients and multi-disciplinary teams. All procedures for the enrolled patients were performed by one surgeon. All CT images were processed by an experienced radiologist. All specimens were evaluated by two experienced pathologists.

The study was conducted with the approval of the institutional ethics committee of The First Affiliated Hospital with Nanjing Medical University (2021-SR-226) and complied with the Declaration of Helsinki. Informed consent was obtained from all patients.

Pathologic Evaluation Pathologists performed intraoperative frozen section analysis. The size of the breast specimen was measured, and the specimen was sliced sequentially into 5mm sections. Then, the length of the margins and the size of the tumor were measured with both the naked eye and microscope. Ink on tumor was defined as a positive margin. When a positive margin was encountered, the surgeon decided to perform an additional incision or a total mastectomy. After the surgery, hematoxylin eosin stain was also performed to confirm the intraoperative analysis and the final report was subject to hematoxylin eosin stain. All pathological examinations were performed by two pathologists with more than 10 years of experience in breast pathologic examination independently.

Patient reported outcomes (PROs) Breast Cancer Treatment Outcome Scale (BCTOS) cosmetic subscale was used to access patient reported cosmetic outcomes in our study [19]. The cosmetic subscale of BCTOS contains 8 items (showing in Supplementary Table 1) designed to assess womens'subjective evaluations of cosmetic outcomes of breast cancer treatment. Each item is rated on a scale of 1 to 4 by the patient, with 1 indicated no difference compared with the untreated breast, 2 slight, 3 moderate, and 4 a large difference. The score was derived from the mean of the answers for each item, with higher scores indicating more adverse effects. Participants completed the scale at baseline (before surgery), 1 month post operation and 6 months post radiotherapy (RT). The scores were statistically analyzed to show the cosmetic changes reported by patients.

Statistical Analysis Quantitive data were reported as the mean with standard deviation. The sample size was calculated as 31 in the PBCS group. The baseline characteristics in the two groups were well balanced. So, the differences between the two groups were analyzed with the chi-square test or Fisher's exact test for categorical variables and the Student t test for continuous variables. All P values were two-sided with 5% significance levels. All analyses were performed using the software STATA version 11.0 (Computer Resource Center, America).

Conditions
Breast Cancer
Being tested
precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstruction
Keywords
breast cancer, precision breast conserving surgery, wire-guided localization, 3-dimensional image reconstruction
Medical subject headings
Breast Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstructionProcedure or surgery

    Local anesthesia was induced by using 1% lidocaine before wire location. The wire (localization set, PAJUNK) was placed in the superior, inferior, lateral and interior edge of the tumor through a 20-gauge needle using US guidance one day before BCS, respectively. Then, the patient underwent an immediate supine contrast enhanced CT (Philips Brilliance iCT) scan of the breast. The radiologist performed 3D reconstruction of CT images prior to surgery. Finally, the surgical procedures were performed by experienced breast surgeons combing 3D reconstruction of CT images and wire localizations one day after the localization.

Study groups in NCT05708664
Study groupRoleWhat they receive
PBCSExperimentalpatients enrolled in the PBCS group underwent precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstruction.
Receives: Procedure: precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstruction
ControlNo interventionpatients enrolled in the Control group underwent palpation guided breast conserving surgery

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The sum of located margin resection widths

    The sum of the resection widths of located superior, inferior, lateral and interior margins

    Measured: 1 month post operation

Secondary outcomes (4)
  1. The specimen diameter

    The diameter of the breast specimen was measured by pathologists

    Measured: 1 month post operation

  2. the largest margin resection width

    the largest resection width of the located superior, inferior, lateral and interior margins

    Measured: 1 month post operation

  3. Operation time

    the duration of the surgery

    Measured: intraoperative

  4. Patients reported outcomes

    Breast Cancer Treatment Outcome Scale (BCTOS) cosmetic subscale was used to access patient reported cosmetic outcomes in our study.

    Measured: participants completed the scale at baseline (before surgery), 1 month post operation and 6 months post radiotherapy (RT)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Feb 2023
  2. Study start1 Aug 2021
  3. Primary completion30 Jun 2022
  4. Study completion1 Jan 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
92 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05708664
Sponsor's protocol ID
PBCST
Status last verified
Jan 2023
First submitted
9 Jan 2023
Last updated
1 Feb 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Fisher B, Anderson S, Bryant J, Margolese RG, Deutsch M, Fisher ER, Jeong JH, Wolmark N. Twenty-year follow-up of a randomized trial comparing total mastectomy, lumpectomy, and lumpectomy plus irradiation for the treatment of invasive breast cancer. N Engl J Med. 2002 Oct 17;347(16):1233-41. doi: 10.1056/NEJMoa022152.

    PubMed 12393820
  • Wrubel E, Natwick R, Wright GP. Breast-Conserving Therapy is Associated with Improved Survival Compared with Mastectomy for Early-Stage Breast Cancer: A Propensity Score Matched Comparison Using the National Cancer Database. Ann Surg Oncol. 2021 Feb;28(2):914-919. doi: 10.1245/s10434-020-08829-4. Epub 2020 Jul 13.

    PubMed 32661849
  • Kim H, Lee SB, Nam SJ, Lee ES, Park BW, Park HY, Lee HJ, Kim J, Chung Y, Kim HJ, Ko BS, Lee JW, Son BH, Ahn SH. Survival of Breast-Conserving Surgery Plus Radiotherapy versus Total Mastectomy in Early Breast Cancer. Ann Surg Oncol. 2021 Sep;28(9):5039-5047. doi: 10.1245/s10434-021-09591-x. Epub 2021 Jan 25.

    PubMed 33492542
  • Li P, Li L, Xiu B, Zhang L, Yang B, Chi Y, Xue J, Wu J. The Prognoses of Young Women With Breast Cancer (</=35 years) With Different Surgical Options: A Propensity Score Matching Retrospective Cohort Study. Front Oncol. 2022 Feb 28;12:795023. doi: 10.3389/fonc.2022.795023. eCollection 2022.

    PubMed 35296009
  • Hanson SE, Lei X, Roubaud MS, DeSnyder SM, Caudle AS, Shaitelman SF, Hoffman KE, Smith GL, Jagsi R, Peterson SK, Smith BD. Long-term Quality of Life in Patients With Breast Cancer After Breast Conservation vs Mastectomy and Reconstruction. JAMA Surg. 2022 Jun 1;157(6):e220631. doi: 10.1001/jamasurg.2022.0631. Epub 2022 Jun 8.

    PubMed 35416926
  • Moran MS, Schnitt SJ, Giuliano AE, Harris JR, Khan SA, Horton J, Klimberg S, Chavez-MacGregor M, Freedman G, Houssami N, Johnson PL, Morrow M; Society of Surgical Oncology; American Society for Radiation Oncology. Society of Surgical Oncology-American Society for Radiation Oncology consensus guideline on margins for breast-conserving surgery with whole-breast irradiation in stages I and II invasive breast cancer. J Clin Oncol. 2014 May 10;32(14):1507-15. doi: 10.1200/JCO.2013.53.3935. Epub 2014 Feb 10.

    PubMed 24516019
  • Leiloglou M, Kedrzycki MS, Elson DS, Leff DR. ASO Author Reflections: Towards Fluorescence Guided Tumor Identification for Precision Breast Conserving Surgery. Ann Surg Oncol. 2022 Dec;29(Suppl 3):564-565. doi: 10.1245/s10434-021-10626-6. Epub 2021 Aug 18. No abstract available.

    PubMed 34406539
  • Hill-Kayser CE, Vachani C, Hampshire MK, Di Lullo GA, Metz JM. Cosmetic outcomes and complications reported by patients having undergone breast-conserving treatment. Int J Radiat Oncol Biol Phys. 2012 Jul 1;83(3):839-44. doi: 10.1016/j.ijrobp.2011.08.013. Epub 2011 Dec 2.

    PubMed 22137022
  • Ahmed M, Rubio IT, Klaase JM, Douek M. Surgical treatment of nonpalpable primary invasive and in situ breast cancer. Nat Rev Clin Oncol. 2015 Nov;12(11):645-63. doi: 10.1038/nrclinonc.2015.161. Epub 2015 Sep 29.

    PubMed 26416152
  • O'Connell AM, Karellas A, Vedantham S, Kawakyu-O'Connor DT. Newer Technologies in Breast Cancer Imaging: Dedicated Cone-Beam Breast Computed Tomography. Semin Ultrasound CT MR. 2018 Feb;39(1):106-113. doi: 10.1053/j.sult.2017.09.001. Epub 2017 Sep 5.

    PubMed 29317032
  • He Z, Chen Z, Tan M, Elingarami S, Liu Y, Li T, Deng Y, He N, Li S, Fu J, Li W. A review on methods for diagnosis of breast cancer cells and tissues. Cell Prolif. 2020 Jul;53(7):e12822. doi: 10.1111/cpr.12822. Epub 2020 Jun 12.

    PubMed 32530560
  • Doihara H, Fujita T, Takabatake D, Takahashi H, Ogasawara Y, Shimizu N. Clinical significance of multidetector-row computed tomography in breast surgery. Breast J. 2006 Sep-Oct;12(5 Suppl 2):S204-9. doi: 10.1111/j.1075-122X.2006.00323.x.

    PubMed 16959003

Questions about this trial

What is this clinical trial studying?

A study testing precision breast conserving surgery guided by wire guided localization combined with MDCT guided 3D reconstruction in people with Breast Cancer, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The sum of located margin resection widths (time frame: 1 month post operation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05708664, which also lists 12 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Feb 2023; AzTrials last refreshed its copy on 30 Oct 2026.

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