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Breast Cancer clinical trials

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NCT ID: NCT06359054 Completed - Breast Cancer Clinical Trials

The Role of 68GA DOTATATE PET/CT In Breast Cancer Imaging

Start date: November 11, 2020
Phase: N/A
Study type: Interventional

Currently, F-18 FDG PET/CT is routinely used for breast cancer staging and treatment response assessment. Most breast cancers express Estrogen Receptor (ER) and Progesterone Receptor (PR) and this subtype shows lower activity on FDG imaging. 68Ga DOTATATE PET/CT is an effective imaging option for somatostatin receptor (SSTR) positive neuroendocrine tumors. There are case reports showing 68Ga DOTATATE uptake in non-Hodgkin lymphoma, meningioma, breast cancer, thyroid adenoma and papillary carcinoma. There are also histochemical studies showing that SSTR is a potential radiopharmaceutical target for ER+/PR+ breast cancer . Its hypothesized that 68Ga DOTATATE PET/CT may be superior to 18F FDG PET/CT primarily in hormone receptor (HR) positive breast cancer. In this study, its aimed to compare the uptake pattern of breast cancer lesions and HR status with 68Ga DOTATATE and 18F FDG uptake in lesions.

NCT ID: NCT06357689 Completed - Breast Cancer Clinical Trials

Association of SNPs in Long Intergenic Noncoding RNA 00511 (LINC00511) With Breast Cancer Among the Egyptian Population

Start date: October 24, 2021
Study type: Observational

Long non-coding RNAs (lncRNAs) play an important role in different types of cancer, including breast cancer, through regulation of gene expression and epigenetic signatures. Genetic variations such as single nucleotide polymorphisms (SNPs) in lncRNAs have been found to be associated with cancer. Our aim was to provide information about the role of LINC00511 SNPs (rs11657109 or rs17780195 or rs9906859, rs4432291 and rs1558535) in breast cancer susceptibility in the Egyptian population.

NCT ID: NCT06354478 Completed - Breast Cancer Clinical Trials

IV Dexmedetomidine vs Oral Gabapentin and Their Combination for Postoperative Analgesia in Cancer Patients Undergoing Modified Radical Mastectomy

Start date: January 1, 2021
Phase: N/A
Study type: Interventional

Breast cancer is the most common malignant tumour among females with an incidence of about 2.1 million women every year.Nearly about 40-60% of breast surgery patients develop severe acute postoperative pain.⁴ Opioids are the current best standard drugs for postoperative pain relief, however, exposure to large doses of opioids leads to multiple side effects like prolonged sedation, respiratory depression, nausea, and vomiting.We are comparing two different drugs and their combination for perioperative analgesia for MRM. This work is a comparative study that aims to compare the analgesic effects of perioperative IV infusion of dexmedetomidine, preoperative oral gabapentin, and their combination in patients undergoing modified radical mastectomy surgery regarding the time of first rescue analgesia, postoperative morphine consumption, and possible complications.

NCT ID: NCT06347952 Completed - Breast Cancer Clinical Trials

Mapping Arterial Perforators Within the Breast During Mammoplasty

Start date: April 27, 2022
Study type: Observational

Breast cancer surgery can often be carried out as part of a breast reduction procedure known as 'therapeutic mammoplasty'. Where a woman has a breast with adequate volume, even larger cancers can be removed in an aesthetically acceptable way with re-shaping of the breast (often reduction and lift) incorporated into the cancer removal. An expectation and desire for most women is that the nipple and areola (known as the 'nipple-areolar complex' or NAC) is not only preserved, but re-positioned (usually lifted) to re-balance the overall aesthetic result. In moving the NAC, the surgeon must ensure an adequate blood supply is maintained to preserve nourishment of the NAC tissue otherwise it can die (necrose) resulting in its removal. The tissue carrying the blood supply is known as a 'pedicle' and is fashioned by the surgeon for each patient during surgery. We know as surgeons, that in most areas of anatomy of the human body there are variations in the pattern of blood vessels. The NAC blood supply is no exception. Yet for each individual patient, the only way to safely know these anatomical patterns is to map them before or during surgery. A surgical tool utilising an aspect of ultrasound (known as doppler) is often used to locate visually (or by hearing) blood flow from blood vessels in operations where such knowledge is critical to the success of the procedure (for example DIEP-based breast reconstruction or chest wall perforator flaps). We would like to evaluate the effectiveness of the routine use of doppler for NAC preservation during mammoplasty procedures to see if it gives the consultant surgeon and/or trainee a greater degree of confidence when shaping the NAC pedicle to preserve its blood supply. In addition, we evaluate the training potential of patients undergoing symmetrising breast reduction, whereby the tissue removed is first mapped using acoustic doppler as for the NAC above.

NCT ID: NCT06335550 Completed - Breast Cancer Clinical Trials

Surgical and Patient Reported Outcomes in Robotic Mastectomy

Start date: November 24, 2022
Phase: N/A
Study type: Interventional

Conventional nipple and/or skin-sparing mastectomy (NSM/SSM) with or without immediate reconstruction is becoming one of the mainstream surgical treatment for breast cancer and risk reducing mastectomy in recent years. While this technique provides satisfactory oncologic and aesthetic outcomes, its disadvantages include skin flap and/or nipple-areolar complex (NAC) necrosis, NAC malposition/distortion as well as visible scar(s) on the breast. In terms of technical aspects, NSM/SSM has its inherent challenges in view of limited incisions and thereby difficulties in dissection. Since 2015, a number of institutions worldwide had adopted a new technique of NSM/SSM using robotic surgical system. Institutional experiences worldwide demonstrated feasibility and safety of this technique coupled with improved patients' satisfactions. To date, there is no center in Singapore or the region offering Robotic NSM/SSM (R-NSM/R-SSM). The authors believe that robotic mastectomy is a feasible and safe technique that can be utilized in our institution and it provides superior aesthetic outcomes with less morbidity and higher patient satisfaction if compared to conventional NSM/SSM. The aim of this study is to conduct a single-arm prospective pilot study to investigate the safety and feasibility as well as learning curve of R-NSM/R-SSM.

NCT ID: NCT06299930 Completed - Breast Cancer Clinical Trials

Locoregional Recurrence After Neoadjuvant Versus Adjuvant Chemotherapy

Start date: April 22, 2022
Study type: Observational

Neoadjuvant chemotherapy (NACT) for early-stage breast cancer is associated with an increased risk of locoregional recurrence (LRR). However, few studies have conducted subgroup analyses of patients with various molecular subtypes, which are one of the determinant factors for treatments. The aim of the study is to investigate whether the risk of LRR after NACT varies across tumor subtypes. The investigators retrospectively reviewed the medical records of female breast cancer patients who underwent breast-conserving surgery at three institutions between January 1, 2004, and Dec 31, 2018.

NCT ID: NCT06255808 Completed - Breast Cancer Clinical Trials

Development of Assist Tool for Breast Examination Using the Principle of Ultrasonic Sensor

Start date: October 5, 2022
Study type: Observational

The accuracy of breast examinations and ultrasonography performed clinically to detect breast mass varies greatly depending on the physician's skill level, and the accuracy of breast examinations by non-experts is particularly low. In this study, we aimed to validate whether the concurrent use of ultrasound sensor technology is an efficient strategy for the purpose of improving the sensitivity of detecting breast masses through breast examination.

NCT ID: NCT06239766 Completed - Breast Cancer Clinical Trials

BC Risk Assessment Before Top Surgery

Start date: March 15, 2023
Study type: Observational

The population of transgender and gender-diverse (TGD) persons in Wisconsin and the U.S. is steadily increasing. As this population grows, the number of individuals seeking gender-affirming therapies, including gender-affirming operations and gender-affirming hormone therapy, is also growing. An example of gender-affirming surgery is chest masculinization surgery, in which most breast tissue is removed in a person assigned female or intersex at birth to allow the chest to appear masculine. Gender-affirming chest masculinization surgery is not generally considered equivalent to an oncologic mastectomy, which aims to removal all breast tissue for future breast cancer reduction or current breast cancer treatment. The goals of this investigation are to 1) determine the percent of TGD persons considering chest masculinization surgery who have an elevated lifetime risk of breast cancer development and/or a pathogenic genetic mutation; 2) measure the percent who are at risk and choose to undergo risk-reducing mastectomies as part of chest masculinization surgery; and 3) assess and compare self-perceived breast cancer risk with calculated risk. The results of this study will substantially inform TGD patients and surgeons on the utility of personalized breast cancer risk assessment prior to chest masculinization surgery and the accuracy of self-perceived breast cancer risk in TGD persons.

NCT ID: NCT06212908 Completed - Breast Cancer Clinical Trials

Assessment of Periodontal Therapy and Biofilm Management in Breast Cancer

Start date: September 18, 2012
Phase: N/A
Study type: Interventional

Objective: To evaluate the impact of chemotherapy on periodontal conditions, hematology, and salivary flow in patients with breast cancer and gingivitis, after basic periodontal therapy (BPT). Methods: They were divided into patients with breast cancer and gingivitis (BC/G =20); and patients without cancer with gingivitis (G=20). Clinical parameters [Plaque Index (PI), bleeding on probing (BOP), Probing Depth (PS), Clinical Attachment Level (CAL)], hematological parameters (complete blood count), and salivary flow were evaluated at baseline, 6, 12 and 24 weeks.

NCT ID: NCT06205394 Completed - Breast Carcinoma Clinical Trials

Improving The Breast Cancer Care Delivery Model for Sex and Gender Minority Survivors, Intended for SGM Study

Start date: August 24, 2022
Study type: Observational

This study evaluates Improving the Breast Cancer Care Delivery Model for Sex and Gender Minority (INTENDED for SGM) in identifying the patient, support person and provider barriers to quality care in SGM breast/chest cancer survivors.