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Researchers are evaluating the real-world effectiveness, safety, and tolerability of ribociclib combined with an aromatase inhibitor, with or without luteinizing hormone-releasing hormone (LHRH) therapy, for adjuvant treatment in patients with hormone receptor-positive, HER2-negative early breast cancer at high risk of recurrence. The study also compares data from patients treated with abemaciclib plus endocrine therapy with or without LHRH, and those receiving endocrine monotherapy with or without LHRH. This observational study aims to understand treatment decisions and clinical use of ribociclib after its approval, collecting socio-economic data, quality of life, and patient compliance information. Participants receive treatment based on their physician's clinical judgment without study-assigned interventions. The treatments observed include ribociclib with an aromatase inhibitor LHRH, abemaciclib with endocrine therapy LHRH, or endocrine monotherapy LHRH. The study is conducted in various breast cancer centers and gynecological practices in Germany and Austria to represent local healthcare settings. Participants undergo assessments to monitor treatment effectiveness, safety, quality of life, and adherence to therapy over time. Data collected include clinical outcomes, adverse events, socio-economic status, and patient-reported compliance. The primary outcome measured is invasive disease-free survival over 36 months. This information will help inform clinical decision-making and improve outcomes for patients with early breast cancer in routine practice.

Researchers are evaluating how well elacestrant works compared to standard endocrine therapy in adults with node-positive, Estrogen Receptor-positive (ER+), Human Epidermal Growth Factor-2 negative (HER2-) early breast cancer who are at high risk of the cancer returning. This is a Phase 3 global, multicenter, randomized, open-label study focusing on participants who have had early invasive breast cancer removed and meet specific receptor and risk criteria. The study aims to understand which treatment better prevents invasive breast cancer over up to five years. Participants will receive either elacestrant or one of several standard endocrine therapies, including anastrozole, letrozole, exemestane, or tamoxifen, all given as oral tablets. Treatments will be administered according to the study plan, with careful monitoring throughout the trial. The study includes adults who have already received between 24 and 60 months of prior endocrine therapy, with or without certain inhibitors, and who have completed or stopped these treatments as required. During the study, participants will be monitored for invasive breast cancer-free survival for up to five years. Researchers will perform regular assessments to track treatment effects, side effects, and cancer recurrence. The study also includes safety monitoring and may involve additional tests or evaluations as needed to ensure participant well-being throughout the trial.

Researchers are evaluating the effectiveness and safety of adding Tersolisib (LY4064809/STX-478) to other anti-cancer drugs as the first treatment for adults with advanced hormone receptor-positive (HR+) and human epidermal growth factor receptor 2-negative (HER2-) breast cancer. This phase 3 study focuses on participants whose cancer has a specific genetic change called a PIK3CA mutation and who have not received prior treatment for advanced breast cancer. The study aims to understand how well this treatment combination works and its safety over time. Participants will receive Tersolisib or a placebo, combined with a CDK4/6 inhibitor (Ribociclib, Palbociclib, or Abemaciclib) and endocrine therapy (Anastrozole, Letrozole, Exemestane, or Fulvestrant). All drugs are given orally except for Fulvestrant, which is given by injection into the muscle. The study includes two parts: Part 1 allows participants who have had up to two prior treatments for advanced breast cancer, including chemotherapy; Part 2 includes those with no prior treatment for advanced disease and classifies them as endocrine sensitive or resistant based on their cancer history. During the study, participants will be regularly assessed for cancer response, progression-free survival, and side effects. Researchers will monitor measurable disease or bone involvement and track overall response rates, including complete or partial tumor shrinkage. The study will continue as long as the treatment is helping without causing unbearable side effects. Follow-up may last up to five years to observe long-term outcomes and safety.

Researchers are evaluating the efficacy and safety of inavolisib combined with Phesgo compared to placebo with Phesgo as maintenance therapy in participants who have previously untreated HER2-positive advanced breast cancer with PIK3CA mutations. This Phase III, multicenter, randomized, double-blind, placebo-controlled study focuses on participants with locally advanced or metastatic breast cancer, aiming to understand the treatment impact after initial induction therapy. Participants will receive inavolisib orally once daily on Days 1 to 21 of each 21-day cycle, starting on Day 1 of Cycle 1 during maintenance treatment. Phesgo will be administered subcutaneously every three weeks on Day 1 of each cycle. The study includes an induction therapy phase where taxane-based chemotherapy is given after Phesgo. Optional endocrine therapy such as tamoxifen, aromatase inhibitors, or fulvestrant may be used based on the investigator's choice, with luteinizing hormone-releasing hormone agonists administered according to local guidelines. During the study, participants will be monitored for progression-free survival for up to approximately 40 months. Assessments include evaluation of heart function, organ function, and overall health status. Researchers will track the safety and effectiveness of the treatment combination through regular clinical evaluations and laboratory tests. The total duration includes maintenance treatment cycles and follow-up to measure outcomes and monitor safety.

Researchers are studying metastatic colorectal carcinoma (mCRC) patients whose tumors have a BRAFV600E mutation, which is known to have a poorer outlook compared to non-mutated cases. Standard treatments after the first therapy have shown limited success, with low response rates and short survival times. This study aims to understand how the combination of encorafenib and cetuximab works in real-world settings, focusing on effectiveness, quality of life, safety, and tolerability in German, Austrian, and Swiss patients who have already received prior therapies. Participants will receive encorafenib combined with cetuximab, treatments that target specific cancer mutations. This study is observational and non-interventional, meaning it records how patients respond to these drugs in routine care without altering their treatment. The study allows initial retrospective data collection and will follow patients longitudinally to gather comprehensive information about their experiences with the therapy. During the study, patients will be monitored for overall survival twelve months after starting treatment. Researchers will assess how well the treatment controls the cancer, side effects experienced, and patients' quality of life. Data will be collected from medical records and patient reports in regular clinical care, providing insights into the real-life use and impact of encorafenib and cetuximab for this patient group.

This research investigates the effectiveness and safety of combining capivasertib with CDK4/6 inhibitors and fulvestrant in adults with hormone receptor-positive (HR+) and human epidermal growth factor receptor 2-negative (HER2-) breast cancer that is locally advanced, inoperable, or metastatic. It includes a Phase Ib dose-finding portion to establish safe dosages for the triple combination, followed by a Phase III study comparing this combination to CDK4/6 inhibitors plus fulvestrant alone. The study focuses on patients who have not received prior endocrine therapy for advanced disease and aims to assess added benefit in a high-risk population. During Phase Ib, participants receive capivasertib orally twice daily for 4 days followed by 3 days off each week, combined with fulvestrant injections and one of the CDK4/6 inhibitors (palbociclib, ribociclib, or abemaciclib) at varying doses to find the recommended dose for Phase III. In Phase III, participants are randomized to receive capivasertib plus fulvestrant and a CDK4/6 inhibitor at the established dose or fulvestrant plus a CDK4/6 inhibitor alone, with dosing schedules maintained over 28-day cycles. Participants undergo regular monitoring including scans for tumor assessment, blood tests, and safety evaluations over extended periods—up to 47 months for progression-free survival assessment. Researchers track adverse events, serious side effects, and treatment tolerability throughout. Mandatory tumor and blood samples are collected for biomarker analysis. The study evaluates key outcomes such as dose-limiting toxicities, treatment-related adverse events, and progression-free survival, supporting long-term safety and effectiveness evaluation.

Researchers are investigating the use of ribociclib combined with standard endocrine therapy as a first-line treatment for women with advanced hormone receptor positive (HR+) and human epidermal growth factor receptor negative (HER2-) breast cancer. This phase IV, open-label, single-arm study aims to evaluate the progression-free survival (PFS) and overall survival (OS) rates at 12 months, along with quality of life, treatment toxicity, and comprehensive biomarker analysis to understand patterns of treatment efficacy and resistance. Participants will receive ribociclib orally at a dose of 600 mg daily for 21 consecutive days followed by 7 days off, in 28-day cycles, combined with standard endocrine therapy according to current guidelines and local practice. The study includes extensive biomarker sampling before, during, and after treatment or at disease progression, including blood, tissue, and immune cell analyses to support translational research. During the trial, patients will attend scheduled visits for monitoring and assessments including survival status, safety evaluations, and quality of life questionnaires. Biomarker samples such as circulating tumor DNA and RNA, serum, plasma, and tumor tissue will be collected to evaluate biological changes. The trial plans to enroll 1000 female patients across 75 sites in Germany, with comprehensive follow-up to track treatment outcomes and long-term safety.

Researchers are investigating the use of elacestrant compared to standard endocrine therapy in patients with estrogen receptor-positive (ER+) and human epidermal growth factor receptor 2-negative (HER2-) breast cancer who have a relapse detected by circulating tumor DNA (ctDNA). This international, multi-center, randomized, open-label phase III trial aims to determine if elacestrant offers a benefit over current endocrine treatments in this group of patients without distant metastases. The study includes a lengthy ctDNA screening phase to identify eligible participants and monitor their disease status over time. The study begins with a ctDNA screening phase, where patients receive standard adjuvant endocrine therapy such as tamoxifen, letrozole, anastrozole, or exemestane, and have blood collected every six months for ctDNA testing until about 5.7 years after enrollment ends. Those who test positive for ctDNA and show no distant metastasis on imaging will be randomized within four weeks to continue their current endocrine therapy or switch to elacestrant taken orally at 400 mg daily. Treatment duration varies based on prior endocrine therapy exposure, ranging from two to seven years. After treatment, further care is at the physician's discretion. Participants will have frequent follow-up visits with ctDNA testing at weeks 4 and 16 post-randomization and every 16 weeks thereafter for up to three years. Imaging studies including mammograms, bone scans, and CT scans will be conducted regularly to monitor for distant metastases or new cancers. The main outcome measured is distant metastasis-free survival, assessed up to 6.25 years following the first patient enrollment. The study ends when all patients complete their visits or discontinue for reasons such as withdrawal, loss to follow-up, or death, and data is fully analyzed and finalized.

Researchers are evaluating whether adding elacestrant, an oral selective estrogen receptor degrader (SERD), to standard olaparib therapy improves progression-free survival in patients with hormone receptor-positive, HER2-negative locally advanced or metastatic breast cancer who have gBRCA1/2 mutations. This phase II, multi-center, randomized, open-label study addresses the urgent need for better treatments in this patient group, who typically have low progression-free survival. Elacestrant has been approved for certain breast cancers resistant to endocrine therapy, and olaparib is an approved PARP inhibitor for gBRCA-mutated metastatic breast cancer. Participants will be randomly assigned in a 2:1 ratio to one of two treatment groups: Arm A receives 600 mg olaparib plus 400 mg elacestrant daily, while Arm B receives 600 mg olaparib daily alone. Treatment continues until disease progression, unacceptable side effects, patient withdrawal, or study completion. Blood tests are done at the start of each treatment cycle, and tumor imaging as well as quality of life assessments are conducted every three months or when progression is suspected. During the study, participants will undergo regular blood tests and imaging scans to monitor tumor status and safety. Quality of life questionnaires will also be used to assess patient well-being. Researchers will measure progression-free survival up to 48 months from randomization, defined as time until disease progression or death. The study includes ongoing safety monitoring and follow-up until the end of the study period.

Researchers are evaluating the safety and effectiveness of the Magseed Pro4 marker and Sentimag4 Gen3 system for marking suspicious or biopsy-proven positive axillary lymph nodes and soft tissue lesions, including cancer and pre-cancerous changes in the breast. This study is a multicenter, international, prospective, open-label trial involving patients with breast cancer requiring localization of breast lesions or lymph nodes prior to surgical removal. The investigational devices used are the Magseed Pro4 marker and Sentimag4 Gen3 system by Endomagnetics Limited. The Magseed Pro4 marker is placed into the target soft tissue before surgery, and the Sentimag4 Gen3 system helps guide the surgeon to remove the marked tissue. Patients will receive marker placement in either the axillary lymph nodes, breast lesions, or both, and the marked tissues will be surgically removed using the magnetic localization system. The study plans to enroll 224 patients, with 112 in each group marking breast lesions or lymph nodes. Participants will be involved for approximately 1 to 38 weeks after enrollment. During the study, researchers will assess the retrieval rates of the Magseed Pro4 marker with the target lesion within the initially removed tissue during surgery. Safety will be monitored, and follow-up assessments will be conducted to gather data on the device's performance and participant outcomes throughout the study period.