Johnson Creek

Researchers are evaluating the effectiveness of active surveillance and chemotherapy treatments in pediatric, adolescent, and adult patients with low risk and standard risk germ cell tumors. This phase III trial focuses on monitoring patients after tumor removal and comparing the outcomes of carboplatin-based versus cisplatin-based chemotherapy regimens. The study aims to maintain high overall survival rates for low risk patients and to compare event-free survival between the two chemotherapy options in standard risk patients. Additional objectives include assessing side effects such as hearing loss and neuropathy, and exploring tumor marker changes and other biological measures related to treatment outcomes. Patients with low risk stage I germ cell tumors undergo surgery followed by observation, with the option to transfer to standard risk treatment if the tumor recurs. Those with standard risk tumors are randomly assigned to one of four chemotherapy regimens combining bleomycin, etoposide, carboplatin, or cisplatin. Treatments are given intravenously on specific schedules every 21 days for up to 3 or 4 cycles, depending on the group. Throughout the trial, patients receive imaging scans, blood tests, tumor biopsies if needed, and pulmonary function tests to monitor treatment response and side effects. Participants are closely followed after treatment completion with regular visits every 2 months for the first year, then less frequently up to 10 years. Researchers collect data through imaging, blood samples, lung tests, and questionnaires to measure survival, disease recurrence, and side effects like hearing loss. The study also includes exploratory analyses of tumor markers and patient-reported outcomes to better understand treatment impacts and improve future care for germ cell tumor patients.

Researchers are evaluating the addition of olaparib, a PARP inhibitor, as maintenance therapy following surgery and chemotherapy in patients with pancreatic cancer that has been surgically removed and who have a pathogenic mutation in BRCA1, BRCA2, or PALB2 genes. This phase II randomized, double-blind study aims to determine if olaparib can improve relapse-free survival compared to placebo in these patients, who have completed perioperative chemotherapy and have no evidence of recurrent disease. Participants are randomly assigned to receive either olaparib or a placebo orally twice daily in 28-day cycles for up to 12 cycles, as long as there is no disease progression or unacceptable side effects. Throughout the treatment period, patients undergo imaging tests such as CT scans or MRI and blood sample collections. After completing the treatment cycles, patients are followed up at 30 days, every 4 months for the first year, and then every 6 months for up to 10 years after randomization to monitor their health and disease status. During the study, researchers assess relapse-free survival by documenting any return of cancer or death from 22 to 44 months after randomization. They also collect blood samples and perform imaging tests to monitor the disease and evaluate treatment effects. Safety is carefully monitored, and patients must have recovered from previous treatments before starting the study. The study includes long-term follow-up to observe survival outcomes and any differences based on genetic mutations or prior chemotherapy regimens.

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 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 investigating whether observation is as effective as continuing pembrolizumab treatment in patients with early-stage triple-negative breast cancer who achieved a complete response after preoperative chemotherapy combined with pembrolizumab. This phase III trial aims to evaluate recurrence-free survival and quality of life, as well as the value of reducing immunotherapy treatment after surgery in these patients. The study also examines differences in adverse events, overall survival, and financial impacts between treatment approaches. Participants are randomly assigned to one of two groups after completing neoadjuvant chemotherapy with pembrolizumab and surgery. One group receives pembrolizumab intravenously as adjuvant therapy, while the other group undergoes observation without further treatment. Both groups have tumor biopsies and blood samples collected on study and during follow-up. Additional assessments include questionnaires and quality-of-life evaluations. During the study, researchers monitor participants for up to 10 years to measure recurrence-free survival. They assess quality of life using validated tools, track adverse events, and evaluate financial toxicity and work productivity. The study includes tumor tissue analysis, blood sample collection, and patient-reported outcomes to understand the long-term effects and value of treatment de-escalation in breast cancer care.

This research aims to compare the effects of usual care including regional radiation therapy with no regional radiation therapy in women with low-risk breast cancer. It focuses on patients with node positive breast cancer or T3N0 disease who typically receive endocrine therapy and possibly chemotherapy to prevent cancer recurrence. The study examines whether skipping regional radiotherapy still effectively prevents breast cancer from returning, potentially reducing unnecessary treatment and side effects. Participants will be divided into two groups: one receiving radiotherapy to the breast/chest area and surrounding lymph nodes, and the other receiving no regional radiotherapy. The study evaluates standard treatments, ensuring radiation therapy starts within specific time frames after surgery or chemotherapy. Treatments include breast-conserving surgery or mastectomy, along with endocrine therapy planned for at least five years. During the study, researchers will monitor breast cancer recurrence-free intervals over approximately 9.5 years. Participants will undergo regular assessments to track cancer status, side effects, and overall health. The study includes quality of life questionnaires for some patients and requires ongoing follow-up to document treatment effects, adverse events, and long-term outcomes.

Researchers are evaluating whether continuous or intermittent treatment with zanubrutinib after achieving complete remission with rituximab is effective and safe for older adults with previously untreated mantle cell lymphoma (MCL). This phase III trial addresses the challenge of ongoing treatment burden and financial toxicity from indefinite zanubrutinib use by comparing two maintenance strategies in this patient population. Participants first receive induction therapy with oral zanubrutinib combined with intravenous rituximab. Those who reach complete remission are then randomly assigned to either continuous zanubrutinib treatment until disease progression (Arm A) or observation until disease progression followed by zanubrutinib retreatment until a second progression (Arm B). Throughout the trial, patients undergo various scans including PET/CT, CT, and MRI, as well as optional procedures like bone marrow biopsy, endoscopy, colonoscopy, and blood sample collection. During the study, researchers assess progression-free survival, overall survival, response rates, adverse events, and quality of life using patient-reported outcomes and functional assessments. Safety and effectiveness are monitored up to 10 years after randomization, with follow-up visits every six months after treatment completion. The trial also explores cognitive function and minimal residual disease to better understand treatment impact.

Researchers are evaluating the effectiveness of radiation therapy combined with chemotherapy and immunotherapy in patients with high-risk stage III-IV squamous cell carcinoma of the head and neck that is HPV-negative. The study aims to compare the usual treatment of radiation therapy with cisplatin chemotherapy against two experimental approaches: radiation with docetaxel and cetuximab chemotherapy, and the usual treatment plus the immunotherapy drug atezolizumab. This phase II/III trial focuses on improving disease-free and overall survival in this patient population. Participants are randomly assigned to one of three treatment groups. One group receives intensity-modulated radiation therapy (IMRT) with weekly cisplatin for 6 weeks. Another group receives IMRT with weekly docetaxel and cetuximab. The third group receives IMRT with weekly cisplatin plus atezolizumab administered intravenously every 3 weeks starting one week before radiation, for up to eight doses. Treatments are given in the absence of disease progression or unacceptable side effects. Throughout the study, patients undergo blood sample collection and may have CT scans, MRI, and biopsies as needed. Follow-up visits occur at 1 and 3 months post-treatment, then every 3 months for 2 years, every 6 months for 3 years, and annually thereafter. Researchers measure disease-free survival up to 7 years, overall survival up to 7 years, symptom burden, quality of life, and treatment-related toxicities. Blood and tissue specimens are collected for future research.

Researchers are evaluating two radiation therapy approaches for men with high-risk prostate cancer in this phase III trial. The study compares stereotactic body radiation therapy (SBRT), which delivers five higher-dose treatments over two weeks, to the usual radiation therapy that involves 20 to 45 treatments over 4 to 9 weeks. This trial aims to see if the shorter SBRT treatment can prevent cancer from returning as effectively as the longer conventional treatment while monitoring survival without metastasis. Participants are randomly assigned to one of two groups. One group receives SBRT with five treatments over two weeks, while the other undergoes external beam radiation therapy (EBRT) with 20 to 45 treatments over 4 to 9 weeks. Both groups have imaging scans such as bone scans, CT, MRI, or PET/CT during screening and study follow-up. Blood and urine samples may be collected optionally. Treatment continues as long as there is no disease progression or unacceptable side effects. During the study, participants have regular follow-ups every six months for five years. Researchers assess outcomes including metastasis-free survival, toxicity reported by physicians, patient-reported urinary and bowel function, fatigue, failure-free survival, overall survival, sexual function, quality of life, and treatment burden. Various questionnaires and imaging tests support these evaluations, helping to monitor safety and effectiveness over time.