Temuco

Gastric cancer is a serious health issue worldwide, with Chile experiencing some of the highest death rates. Helicobacter pylori infection is common among Chilean adults and is the main cause of gastric cancer. This research focuses on early detection and treatment of H. pylori infection in adolescents aged 14 to 18, aiming to reduce gastric damage and improve health outcomes by using a screen and treat strategy in areas with moderate to high gastric cancer rates. The study begins by screening up to 1000 asymptomatic adolescents in three Chilean cities to identify those persistently infected with H. pylori. Those confirmed with persistent infection will be randomly assigned to receive either a 14-day antimicrobial treatment including lansoprazole, amoxicillin, clarithromycin, and metronidazole, or no treatment. A group of 60 non-infected adolescents will also be followed for comparison. The study includes pre-treatment and multiple post-treatment evaluations over 18 months. Participants will undergo repeated urea breath tests to monitor infection status, gastroenterological exams, and collection of blood and stool samples to measure biomarkers of gastric damage and analyze gut microbiome changes. Researchers will assess the success of eradication therapy, reinfection rates, clinical signs of gastric disease, and changes in antimicrobial resistance and gut microbiota diversity. The total follow-up period includes regular check-ups up to 18 months post-treatment, with additional monitoring of non-infected participants.

Researchers are studying treatments for locally advanced or metastatic colorectal cancer mCRC that cannot be removed by surgery and has a specific KRAS G12C gene mutation. This trial aims to evaluate if adding the targeted therapies calderasib and cetuximab to the standard chemotherapy regimen mFOLFOX6 can provide better outcomes compared to mFOLFOX6 with or without bevacizumab. The study focuses on the safety and tolerability of these combinations and whether they can help people live longer without their cancer growing or spreading. Participants will be assigned to one of two groups. One group will receive calderasib orally, cetuximab every two weeks, and mFOLFOX6 chemotherapy including oxaliplatin, leucovorin or levofolinate calcium, and 5-fluorouracil every two weeks. The other group will receive mFOLFOX6 chemotherapy with or without bevacizumab every two weeks, based on the investigators decision. Treatments will continue until certain stopping criteria are met. During the study, participants will be monitored for side effects and treatment tolerance, with regular assessments of cancer progression. Researchers will measure outcomes such as dose-limiting toxicities, adverse events, progression-free survival, and overall survival. Quality of life will also be evaluated through questionnaires. The study may last up to several years, with monitoring continuing for safety and effectiveness throughout the treatment period and follow-up.

Researchers are investigating whether sacituzumab tirumotecan alone or combined with other treatments can treat certain advanced or unresectable gastrointestinal cancers, including colorectal cancer, pancreatic ductal adenocarcinoma, and biliary tract cancer. The study aims to understand the safety and tolerability of sacituzumab tirumotecan and how well the cancer responds to these treatments. Participants will receive sacituzumab tirumotecan in different dose levels either combined with chemotherapy every two weeks in a 4-week cycle, alone every two weeks in a 4-week cycle, or combined with cisplatin and pembrolizumab in a 3-week cycle. Treatment continues until the cancer worsens or participants cannot tolerate it. Cisplatin is given up to approximately six months, and pembrolizumab is administered for up to about two years in the combination group. During the study, participants will have regular assessments to monitor safety, side effects, and how the cancer responds via imaging and clinical evaluation. Researchers will track dose-limiting toxicities, adverse events, treatment discontinuations due to side effects, and objective response rates. Additional measures include duration of response, progression-free survival, and overall survival, with monitoring lasting up to approximately 63 months.

Researchers are evaluating new medicines to prevent HIV-1 Human Immunodeficiency Virus Type 1 infection. This Phase 3 clinical study aims to determine if taking the drug MK-8527 once a month can prevent HIV-1 infection as well as or better than the standard daily pre-exposure prophylaxis PrEP. The study also assesses the safety and tolerance of MK-8527 in participants. Participants are randomly assigned to one of two groups. One group receives 11 mg of MK-8527 once monthly along with a daily placebo pill matching FTCTDF. The other group receives a daily dose of FTC245 mg TDF and a monthly placebo matching MK-8527. This treatment period lasts for approximately two years, followed by an additional 28-day period where all participants receive open-label FTCTDF daily. During the study, participants will undergo regular monitoring to check for HIV-1 infection and any adverse events. Researchers will track the number of participants who acquire HIV-1, experience side effects, or stop treatment due to side effects over the two-year period. Safety and adherence assessments will be conducted to evaluate the study treatments. The total participation time includes the two-year treatment phase plus the 28-day follow-up with open-label FTCTDF.

Researchers are investigating new treatment options for breast cancer that is hormone receptor-positive HR and human epidermal growth factor receptor 2-negative HER2-, specifically for cases that are unresectable locally advanced or metastatic. This type of breast cancer involves cancer cells that depend on hormones like estrogen or progesterone and have low HER2 protein levels. The study focuses on comparing the effects of patritumab deruxtecan against chemotherapy or trastuzumab deruxtecan in patients whose cancer has progressed despite prior treatments. Participants receive either patritumab deruxtecan through intravenous infusions every three weeks for about 13 months or a treatment chosen by their physician, which may include various chemotherapy drugs or trastuzumab deruxtecan, administered according to specific schedules for up to 13 months. The study is randomized and open-label, meaning participants are randomly assigned to one of the treatment groups, and both the patients and researchers know which treatment is given. Throughout the study, participants undergo regular assessments to monitor cancer progression and overall survival for up to approximately 85 months. Researchers evaluate tumor response, duration of response, and changes in quality of life using standardized questionnaires. Safety is carefully monitored by recording adverse events and treatment discontinuations. The goal is to understand if patritumab deruxtecan can improve outcomes compared to current treatment options.

Researchers are investigating new treatments for metastatic cervical cancer, which is cancer that has spread beyond the cervix, the lower part of the uterus. This study evaluates the safety and effectiveness of the antibody drug conjugate sacituzumab tirumotecan sac-TMT combined with pembrolizumab and bevacizumab. The goal is to find out if these treatments, given together or with some variations, help patients live longer or delay cancer progression compared to standard care. The study has two parts. In Part 1, participants receive sac-TMT, pembrolizumab, and bevacizumab together to assess safety. In Part 2, all participants first get standard induction treatment with pembrolizumab, paclitaxel, and cisplatin or carboplatin, possibly with bevacizumab. Those whose cancer does not worsen then enter maintenance treatment, where they are randomly assigned to receive either pembrolizumab alone or sac-TMT plus pembrolizumab, with optional bevacizumab. Participants are involved for up to about 20 months during maintenance treatment after up to 4 months of induction. The study monitors safety by tracking side effects and treatment discontinuations. Effectiveness is measured by progression-free survival and overall survival up to several years. Quality of life and physical functioning are also assessed through questionnaires. Treatments and evaluations occur through regular intravenous infusions and periodic monitoring visits.

Researchers are evaluating the safety, tolerability, and therapeutic effects of BNT113 combined with pembrolizumab compared to pembrolizumab alone as a first-line treatment for patients with unresectable recurrent or metastatic head and neck squamous cell carcinoma HNSCC positive for human papilloma virus 16 HPV16 and expressing the protein PD-L1 with a combined positive score of 1 or higher. This is an open-label, multi-site, Phase IIIII clinical trial consisting of two parts an initial safety run-in phase and a randomized phase. In the safety run-in phase Part A, patients receive BNT113 in combination with pembrolizumab to confirm safety and tolerability at selected dose levels. The randomized phase Part B compares BNT113 combined with pembrolizumab against pembrolizumab monotherapy. Treatments are given by intravenous injection or infusion and continue for up to 24 months. An optional pre-screening phase allows tumor samples to be tested for HPV16 DNA and PD-L1 expression before the main trial screening. Participants will be closely monitored throughout the study. Assessments include safety evaluations, tumor response, and survival outcomes such as overall survival and progression-free survival. Tumor tissue samples must be provided for testing. Researchers will measure treatment-emergent adverse events, response rates, duration of response, and disease control. The study may last up to 48 months, with ongoing safety and efficacy monitoring during and after treatment.

Researchers are evaluating the efficacy and safety of combining durvalumab and domvanalimab compared to durvalumab plus placebo in adults with locally advanced Stage III, unresectable non-small cell lung cancer NSCLC whose disease has not progressed after definitive platinum-based concurrent chemoradiotherapy cCRT. This Phase III, randomized, double-blind, placebo-controlled, international study aims to provide new insights into treatment options for this patient population. Participants will receive either durvalumab and domvanalimab or durvalumab plus placebo as intravenous infusions every four weeks, beginning on Day 1 and continuing for up to 12 months. The study includes two groups one receiving the combination of durvalumab and domvanalimab, and the other receiving durvalumab with a placebo. Both treatments are given through infusion to assess their effects on disease progression and safety. During the trial, participants will undergo regular assessments including monitoring progression-free survival for up to 8 years after randomization. Other measures include overall survival, response rates, duration of response, and various time-to-event outcomes related to disease progression and symptom deterioration. Researchers will also evaluate drug concentrations and immune responses approximately 12 weeks after the last dose. Participants can expect scheduled visits for infusions and evaluations as part of this long-term study.

Researchers are evaluating the long-term safety and tolerability of dazodalibep in people with Sjgrens Syndrome. This phase 3 open-label study extends previous trials by continuing to monitor participants who completed 48 weeks of treatment with dazodalibep or placebo. The study is sponsored by Amgen and aims to better understand the safety profile of dazodalibep over an extended period. Participants who finished the initial 48-week trials HZNP-DAZ-301 or HZNP-DAZ-303 will receive an assigned dose of dazodalibep intravenously for an additional 132 weeks. This extension study involves a single treatment group receiving dazodalibep without placebo, focusing on ongoing treatment effects and participant safety. During the study, participants will be monitored for treatment-emergent adverse events for up to 152 weeks. Researchers will also measure the presence of anti-drug antibodies and plasma concentrations of dazodalibep for up to 132 weeks. Participants need to be available for all study visits and procedures, with safety assessments conducted regularly throughout the long-term extension period.

Researchers are evaluating the efficacy and safety of elecoglipron, an oral tablet taken once daily, for weight management in adults with obesity or overweight. This Phase III global, randomized, double-blind, placebo-controlled trial includes two independent pivotal studies one in adults without type 2 diabetes T2DM and the other in adults with T2DM, all having at least one weight-related health condition. The goal is to understand how elecoglipron compares to placebo when combined with diet and exercise. Participants will be randomly assigned to receive either one of two doses of elecoglipron or a matching placebo daily. Study 1 involves about 3000 adults living with obesity or overweight without T2DM, while Study 2 involves about 1500 adults with obesity or overweight and T2DM. Both studies last 72 weeks, during which changes in body weight and other health measures will be monitored. During the trial, participants will undergo regular health assessments including measurements of body weight, waist circumference, blood sugar control, blood pressure, and other related health indicators. Researchers will track percent change in body weight from baseline at 72 weeks as the primary outcome. Participants will be monitored closely throughout the study to assess safety and effectiveness of the treatment in managing weight and associated health conditions.