Brighton

Researchers are evaluating how to best recommend chemotherapy for patients with Stage IIB, IIC, or Stage III colon cancer based on the presence or absence of circulating tumor DNA ctDNA after surgery. This Phase IIIII trial explores whether ctDNA status can help guide decisions about the need for adjuvant chemotherapy and identify the optimal chemotherapy regimen for those at high risk of recurrence. Circulating tumor DNA is a promising biomarker that may detect microscopic residual cancer cells that traditional methods might miss. Participants are assigned to groups based on their ctDNA results after surgery. Those without detectable ctDNA ctDNA- may undergo serial monitoring without treatment or receive different chemotherapy regimens such as mFOLFOX6 or CAPOX for 3 to 6 months. Patients with detectable ctDNA ctDNA who have a higher risk of recurrence are randomized to receive either standard chemotherapy regimens like mFOLFOX6 or CAPOX for 6 months or a more intensive regimen called mFOLFIRINOX for 6 months. Central ctDNA testing is performed using the Signatera test to guide these assignments. During the study, participants have blood samples collected for ctDNA testing and undergo imaging scans to check for cancer recurrence. Researchers assess disease-free survival, overall survival, and chemotherapy compliance over several years. The study includes monitoring for safety and treatment effects, with follow-up planned for up to 5 years after randomization. Participants health status, laboratory tests, and tumor markers are regularly evaluated throughout the treatment and follow-up periods.

Researchers are comparing two chemotherapy combinations for treating advanced, unresectable, or metastatic HER2 negative adenocarcinomas of the esophagus, gastroesophageal junction, and stomach. This phase III trial evaluates modified FOLFIRINOX fluorouracil, leucovorin calcium, oxaliplatin, and irinotecan with or without nivolumab versus modified FOLFOX fluorouracil, leucovorin calcium, and oxaliplatin with or without nivolumab. Chemotherapy drugs act to stop tumor growth by killing cells or stopping division, and immunotherapy with nivolumab may affect the immune system to hinder tumor growth and spread. Participants are randomized into two groups one receives mFOLFIRINOX plus nivolumab as clinically indicated, and the other receives mFOLFOX plus nivolumab as clinically indicated. Treatments are administered intravenously. Throughout the study, participants undergo magnetic resonance imaging MRI, computed tomography CT scans, and may provide blood samples. Nivolumab is given as needed based on clinical assessment during the trial. Participants will be monitored up to 2 years from randomization for overall survival, with secondary measures including progression-free survival, response rates, duration of response, adverse events, and patient-reported outcomes collected at baseline and during treatment cycles. Safety and tolerability are evaluated, and exploratory analyses include biomarker assessments such as PD-L1 combined positive score and cell-free DNA. The trial includes regular imaging and clinical assessments to track disease status and treatment effects.

Researchers are evaluating a phase III trial comparing shorter chemotherapy-immunotherapy without anthracycline drugs to the usual chemo-immunotherapy for treating early-stage triple negative breast cancer TNBC. This study aims to see if the shorter treatment works as well as the usual anthracycline-containing treatment. The trial also assesses patient-reported outcomes like fatigue and physical function, as well as safety and survival measures. It involves participants with specific stages of TNBC and includes detailed evaluations of tumor response and immune markers. Participants are randomly assigned to one of two treatment groups. One group receives paclitaxel, carboplatin, and pembrolizumab followed by doxorubicin, cyclophosphamide, and pembrolizumab, then surgery, with possible pembrolizumab after surgery. The other group receives docetaxel, carboplatin, and pembrolizumab prior to surgery, with possible pembrolizumab after surgery. Blood samples may be collected throughout the trial for research purposes. During the study, participants undergo surgery after chemotherapy-immunotherapy. They are followed every six months for two years, then annually up to five years. Assessments include breast cancer event-free survival, pathological response, distant relapse-free survival, overall survival, adverse events, and patient-reported fatigue and physical function. Quality of life and other patient-reported symptoms are also evaluated. Specimens are banked for future research. The total participation may last up to five years from registration.

Researchers are evaluating the effects of taking olaparib for one year compared to two years, with or without the addition of bevacizumab, in patients with stage III or IV ovarian cancer that has specific genetic mutations BRCA 12 or a deficiency in homologous recombination. This phase III trial aims to determine if shorter treatment with olaparib is not worse than longer treatment and to study survival, disease progression, toxicity, and other outcomes. The study also explores genetic markers that might predict treatment response. Participants are randomly assigned to one of two groups. In the first group, patients take olaparib orally twice daily for up to two years and may receive bevacizumab intravenously every 21 days for up to one year. In the second group, patients receive olaparib twice daily for up to one year and may also receive bevacizumab on the same schedule. Both groups undergo blood sample collection and imaging scans such as CT or MRI during the study treatment period. After finishing treatment, participants are followed up every three months for two years and then every six months for another three years to monitor health and disease status. Researchers assess progression-free survival based on tumor scans and survival over up to five years. Side effects, including risks of certain blood disorders and secondary cancers, are tracked. The total participation duration may extend over several years, including treatment and long-term follow-up.