Dillon

Researchers are evaluating how to best recommend chemotherapy for patients with colon cancer after surgery by using the presence or absence of circulating tumor DNA (ctDNA) in the blood. This approach aims to identify microscopic residual tumor cells and may provide better risk prediction for cancer recurrence compared to traditional methods. The trial focuses on patients with Stage IIB, IIC, or III colon cancer who have undergone complete tumor removal. Participants will have their tumor tissue and blood tested centrally using the Signatera assay to determine ctDNA status. Patients without detectable ctDNA may avoid chemotherapy, while those with detectable ctDNA are considered at higher risk and will be randomly assigned to receive different chemotherapy regimens, including mFOLFOX6, CAPOX, or mFOLFIRINOX, given intravenously or orally over periods ranging from 3 to 6 months. The study includes initial screening, treatment, and possible second randomization for patients whose ctDNA status changes during monitoring. During the study, participants will undergo various assessments including blood tests, imaging scans, and performance evaluations to monitor their health and response to therapy. Researchers will track the time to ctDNA positivity and disease-free survival for up to 3 and 5 years, respectively. Safety and treatment effects will be closely observed throughout the study duration, ensuring thorough follow-up and monitoring for all participants.

Researchers are evaluating whether breast conservation surgery combined with endocrine therapy can achieve a similar rate of invasive or non-invasive ipsilateral breast tumor recurrence (IBTR) compared to breast conservation surgery followed by breast radiation and endocrine therapy in patients with Stage I, hormone sensitive, HER2-negative breast cancer with an Oncotype recurrence score of 18 or less. This Phase III trial builds on the established role of radiation after lumpectomy, aiming to identify if radiation can be safely omitted in certain low-risk patients to reduce treatment burden and side effects. Participants receive either breast radiation plus endocrine therapy or endocrine therapy alone. Radiation therapy involves external beam radiation to the whole breast with or without a boost, partial breast irradiation, or accelerated partial breast irradiation, starting within 12 weeks after the last breast surgery. Endocrine therapy is given for a minimum of 5 years, with the specific drug choice and schedule determined by the treating physician. Endocrine therapy may begin before, during, or after radiation therapy, depending on the treatment group. Throughout the study, participants undergo regular assessments including imaging such as mammograms or MRI within six months before enrollment, and clinical evaluations to monitor tumor recurrence. The main outcome measured is the time to invasive or non-invasive ipsilateral breast tumor recurrence over five years. Safety, adherence to therapy, and recovery from surgery are also monitored. The total participation period includes at least five years to evaluate long-term recurrence rates.

Researchers are investigating whether adding the chemotherapy drug Docetaxel to the usual hormone treatments can better control metastatic castration sensitive prostate cancer (mCSPC) in patients who have a less than optimal PSA response after 6 to 12 months of androgen-targeting therapy. This phase III, open-label, randomized international trial compares the effectiveness of Docetaxel combined with standard Androgen Deprivation Therapy (ADT) and Androgen-Receptor Pathway Inhibitors (ARPI) versus ADT and ARPI alone. The study focuses on men with metastatic prostate adenocarcinoma who have a suboptimal PSA decline following initial hormone therapy. Participants receive standard ADT and an ARPI such as abiraterone, enzalutamide, apalutamide, or darolutamide, which are assigned before enrollment. At enrollment, patients are randomized to receive either the addition of Docetaxel chemotherapy or no chemotherapy alongside their hormone therapy. The goal is to assess whether this combination reduces cancer growth or spread compared to hormone therapy alone. Treatment begins within five working days after enrollment, with close monitoring throughout the study. Throughout the trial, participants undergo regular assessments including PSA measurements to monitor cancer activity and overall survival tracked at 39 months. Eligibility requires stable organ function, performance status, and recovery from prior treatment side effects. Patients are monitored for adverse events, safety, and treatment response. The study also ensures participants and their partners use contraception if of childbearing potential, and participants must be accessible for treatment and follow-up visits to document outcomes and safety data.

Researchers are evaluating if adding adjuvant chemotherapy (ACT) to ovarian function suppression (OFS) plus endocrine therapy (ET) improves invasive breast cancer-free survival (IBCFS) compared to OFS plus ET alone. This Phase III trial focuses on premenopausal women with early-stage breast cancer that is estrogen receptor (ER)-positive, HER2-negative, and has a 21-gene recurrence score between 16-25 for node-negative patients or 0-25 for patients with 1-3 positive nodes. The study addresses the need for better treatment options for younger women diagnosed with this type of breast cancer, as younger age is linked to worse outcomes despite standard therapies. Participants receive one of two treatments: either OFS combined with an aromatase inhibitor (AI) for five years or adjuvant chemotherapy followed by the same OFS plus AI regimen. The specific AI and GnRH agonist used, along with their dosing schedules, are chosen by the investigator, commonly including goserelin, leuprolide, or triptorelin administered monthly or every three months. Bilateral oophorectomy may be used instead of ovarian suppression if preferred. Endocrine therapy beyond five years is at the investigator's discretion. During the trial, participants will be closely monitored for invasive breast cancer-free survival over an 11-year period from randomization. Assessments include clinical evaluations, hormone receptor testing, tumor staging, and genetic recurrence scoring prior to enrollment. Safety and effectiveness data will be collected throughout the study, with particular attention to treatment side effects and long-term outcomes. The trial involves detailed eligibility screening and ongoing follow-up to ensure accurate measurement of the study's primary outcome.

Researchers are studying a treatment called Izalontamab Brengitecan compared to standard platinum-based chemotherapy for people with advanced urothelial cancer that has worsened after immunotherapy. This trial includes both Phase 2 and Phase 3 stages and focuses on patients whose disease progressed despite prior immune-based treatments. The goal is to evaluate how well these treatments control the cancer and how safe they are over time. Participants in this study will receive either Izalontamab Brengitecan or platinum-based chemotherapy drugs such as cisplatin, gemcitabine, or carboplatin. Each drug is given at specified doses on certain days, following the study plan. The Phase 2 portion aims to determine the best dose for further testing over about three months, while the Phase 3 portion will compare how long patients live without their cancer worsening and overall survival up to five years. Throughout the study, participants will have regular assessments to measure tumor size and monitor health status using standardized criteria and performance scales. Researchers will track progression-free and overall survival as main outcomes. The total follow-up may extend up to five years to observe long-term effects and safety of the treatments.