Sao Paulo

Researchers are evaluating the safety and effectiveness of elenestinib BLU-263 combined with symptom directed therapy SDT compared to placebo plus SDT in adults with indolent systemic mastocytosis ISM whose symptoms are not well controlled by SDT alone. This randomized, double-blind, placebo-controlled Phase 23 study includes multiple parts to assess different doses and durations of elenestinib treatment, including an open-label extension for participants finishing earlier phases. The study also enrolls participants who have previously received an approved selective KIT inhibitor and includes pharmacokinetic groups. Participants receive oral elenestinib or placebo once daily alongside SDT, which is personalized based on individual symptom management needs. Part 1 focuses on short-term treatment lasting up to 12 weeks, while Part 2 extends treatment to approximately 48 weeks. Part 3 and other parts allow treatment for up to about 5 years. The study monitors participants through these phases to evaluate how elenestinib affects symptoms, disease markers, and safety over time. During the study, participants undergo regular assessments of symptoms using the ISM-Symptom Assessment Form ISM-SAF, laboratory tests including serum tryptase and KIT D816V allele levels, bone marrow evaluations, and quality of life measures. Researchers track adverse events and changes in disease-related factors at various points up to 5 years. This thorough monitoring helps measure treatment effects and safety over both short and long-term periods, with total participation lasting several years depending on the study part.

Researchers are evaluating the combination of CGT9486 and sunitinib compared to sunitinib alone in patients with locally advanced, unresectable, or metastatic Gastrointestinal Stromal Tumors GIST. This Phase 3, open-label international trial involves multiple parts, including dose confirmation, drug interaction assessments, and efficacy comparisons. The study also includes substudies focusing on drug-drug interaction potential and first-line treatment in patients with specific genetic mutations KIT exon 9. Approximately 482 patients will participate across these parts.

Researchers are evaluating the clinical performance of a new generation of customized CADCAM pre-fabricated root-analog dental implants in patients who have experienced tooth loss. This observational prospective cohort study aims to determine if these drilling-free implants are safe, effective, and clinically viable over a 36-month period and whether they provide better post-operative outcomes compared to traditional implant methods. The study is conducted by the University of Sao Paulo. Participants in this study have received personalized dental implants using the iDENTICAL Dental Implant System immediately after tooth extraction during a previous interventional phase. This study follows a single group of twelve patients over 36 months, monitoring the implants at 12, 24, and 36 months after prosthesis installation. The focus is on assessing implant survival, peri-implant tissue health, post-operative comfort, bone preservation, and tissue integration. During the study, participants will undergo clinical and radiographic examinations at the specified time points to measure radiographic success, changes in peri-implant soft tissues, prosthetic outcomes, and other peri-implant clinical parameters. The study requires availability for follow-up visits throughout the 36-month observation period. Safety and efficacy data will be collected to understand the long-term outcomes of these customized dental implants.

Researchers are investigating new treatments for advanced renal cell carcinoma RCC that has returned after prior therapy. The study aims to find out if the combination of belzutifan and zanzalintinib can help people with recurrent advanced RCC live longer without their cancer worsening compared to the drug cabozantinib. This is a phase 3 randomized trial evaluating these treatments in participants who have experienced recurrence during or after prior anti-PD-1L1 therapy. Participants are randomly assigned to receive either belzutifan plus zanzalintinib taken orally once daily or cabozantinib taken orally once daily. They continue their assigned treatment until certain reasons require stopping the study intervention. The study compares the effects of these treatments on cancer progression and survival among people with advanced RCC who have had disease recurrence after adjuvant therapy. During the study, participants will be regularly monitored for progression-free survival and overall survival for up to about 73 months. Researchers will also assess tumor response, duration of response, adverse events, and quality of life using questionnaires over approximately 25 months. The study involves ongoing evaluations to understand how these treatments affect symptoms, functioning, and overall health during long-term follow-up.

Researchers are evaluating if combining the medicines calderasib and subcutaneous pembrolizumab can more effectively treat people with non-small cell lung cancer NSCLC that has a KRAS G12C mutation. The study aims to find out whether patients receiving calderasib with pembrolizumab live longer without their cancer growing or spreading compared to those receiving pembrolizumab with chemotherapy. This is a Phase 3 clinical trial focusing on first-line treatment for advanced or metastatic nonsquamous NSCLC. Participants are assigned to one of two groups. One group receives subcutaneous pembrolizumab plus berahyaluronidase alfa every 6 weeks for up to 18 cycles about 2 years along with oral calderasib until treatment discontinuation criteria are met. The other group receives the same pembrolizumab and berahyaluronidase alfa regimen plus chemotherapy with pemetrexed and either carboplatin or cisplatin infusions during the early cycles. Treatment continues based on individual response and tolerability. During the study, participants will have regular visits for treatment and monitoring. Researchers will assess progression-free survival, overall survival, response rates, and quality of life using questionnaires and symptom scores over several years. Safety will be monitored through adverse event reporting. The trial lasts up to about 7 years with ongoing evaluation of health outcomes and side effects to understand the impact of these treatment combinations.

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 studying metastatic castration-resistant prostate cancer mCRPC to find new treatment options. This trial evaluates if the study medicine ifinatamab deruxtecan I-DXd or MK-2400 helps people live longer overall and experience slower cancer growth or spread compared to chemotherapy. The study is a Phase 3 trial comparing I-DXd with standard chemotherapy for mCRPC patients. Participants are randomly assigned to receive either I-DXd at 12 mgkg every 3 weeks through intravenous infusion or docetaxel chemotherapy at 75 mgm2 every 3 weeks combined with daily prednisone pills. Treatment continues until the disease progresses, unacceptable side effects occur, or treatment is stopped for other reasons. Premedication is given before each dose of I-DXd to help prevent nausea and vomiting. During the study, participants will have regular visits for treatment and monitoring. Researchers will assess overall survival and radiographic progression-free survival for up to about 36 months. Additional measures include response rates, time to pain progression, PSA progression, and adverse events. The study tracks safety, treatment effects, and quality of life over a long follow-up period to better understand the potential benefits and risks of I-DXd compared to chemotherapy.

This research investigates treatments for metastatic castration-resistant prostate cancer mCRPC focusing on a drug called ifinatamab deruxtecan I-DXd. The study aims to assess the safety, how well participants tolerate the treatments, and appropriate dosing levels of I-DXd alone or combined with other therapies. Researchers will also monitor participants prostate specific antigen PSA levels during treatment to understand its effects. Participants are assigned to one of several treatment groups. One group receives docetaxel every three weeks for up to 10 cycles. Other groups receive I-DXd alone or combined with either opevesostat or androgen receptor pathway inhibitors such as abiraterone acetate or enzalutamide. I-DXd is given every three weeks until unacceptable side effects, disease progression, death, or withdrawal, while the other drugs continue until specific discontinuation criteria are met. Premedication is required before each I-DXd dose to prevent nausea and vomiting. Throughout the study, participants undergo various assessments including monitoring of dose-limiting toxicities, adverse events, and PSA response rates. Researchers also track objective response rates, progression-free survival, overall survival, and other clinical outcomes over up to approximately 54 months. The study involves regular evaluations to assess safety and treatment effects until study completion.

Researchers are studying MK-1084, a targeted therapy, to treat advanced or metastatic non-squamous non-small cell lung cancer NSCLC with a specific KRAS G12C mutation. The study aims to evaluate the safety and tolerability of MK-1084 when combined with other treatments, and to see how many participants experience tumor shrinkage or disappearance. This trial is part of a larger master protocol and includes participants who have previously received certain cancer therapies. Participants will receive MK-1084 combined with either patritumab deruxtecan HER3-DXd or sacituzumab tirumotecan Sac-TMT until treatment is stopped due to side effects, adverse events, or investigator decision. MK-1084 is taken orally, while the other drugs are given by intravenous infusion. The arm combining MK-1084 with cetuximab was discontinued per protocol amendment. Throughout the study, participants will undergo assessments to monitor dose-limiting toxicities, adverse events, and treatment response for up to approximately 63 months. Researchers will also evaluate progression-free survival and drug concentration levels in the blood. Safety and treatment effects will be closely tracked, and participants may receive rescue medications to manage symptoms like nausea. The total study duration extends to 2032, with primary outcome evaluation by 2029.

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.