Mamak

Primary immune thrombocytopenia ITP is a condition where the immune system mistakenly destroys platelets, leading to a lower number of platelets and increased risk of bruising or bleeding. This Phase 3 study evaluates the long-term safety, tolerability, and effectiveness of mezagitamab in adults with chronic primary ITP. The study also investigates how the body processes mezagitamab over an extended period. Participants who completed previous mezagitamab studies TAK-079-3002 or TAK-079-1004 will be invited to join this continuation trial. Eligible participants may receive mezagitamab injections on demand, with treatment courses repeated as needed based on specific criteria and the investigators clinical judgment. The treatment is administered subcutaneously. During the study, participants will visit the clinic several times for assessments. Researchers will monitor safety by tracking treatment-emergent adverse events, and evaluate effectiveness through platelet response and remission rates. Measurements of drug levels and antibodies will also be taken. The study may last up to approximately 108 weeks, allowing detailed long-term follow-up.

Primary immune thrombocytopenia ITP is a condition where the immune system mistakenly destroys platelets, the cells responsible for blood clotting, resulting in increased bleeding and bruising. This trial evaluates whether mezagitamab given as a subcutaneous injection can effectively maintain stable platelet counts in adults with chronic ITP compared to a placebo. The study is a phase 3, randomized, double-blind, placebo-controlled trial designed to assess both the efficacy and safety of mezagitamab in this population. Participants are randomly assigned to receive either mezagitamab or a matching placebo by subcutaneous injection once weekly. The treatment schedule consists of 8 weekly doses followed by an 8-week break, then another 8 weekly doses, totaling up to 6 months of treatment. Those who finish this trial or do not respond to treatment by week 16 may have the option to join a continuation study to receive open-label mezagitamab if eligible and if the site is open. During the study, participants will visit the clinic multiple times for treatment and monitoring. Researchers will measure platelet responses, symptom changes using patient questionnaires, bleeding events, and blood concentrations of mezagitamab. Safety assessments include monitoring for anti-drug antibodies and adverse events. The primary outcome is the percentage of participants with a durable platelet response up to week 24. The trial is expected to complete in March 2028.

Researchers are evaluating an experimental drug called odronextamab combined with lenalidomide in adults who have relapsed or refractory follicular lymphoma FL or marginal zone lymphoma MZL, which are subtypes of Non-Hodgkins lymphoma. The study aims to assess the safety, tolerability, and proper dosing of this new combination and compare its effectiveness to the current standard treatment of rituximab combined with lenalidomide. The research also explores side effects, drug levels in the blood, immune responses to the drug, and impacts on quality of life and daily functioning. The study has two parts Part 1 is a safety phase where all participants receive odronextamab plus lenalidomide to determine the appropriate dose. Part 2 is randomized and compares two groupsone receiving odronextamab with lenalidomide, and the other receiving rituximab with lenalidomide followed by lenalidomide alone. Participants receive these treatments according to the study protocol during these phases. Throughout the study, participants will undergo various assessments including safety monitoring for side effects, measurement of drug concentrations and immune responses, imaging scans to evaluate disease status, and quality-of-life questionnaires. The primary outcomes include tracking dose-limiting toxicities up to 35 days and treatment-emergent adverse events up to 2 years. Longer-term outcomes such as progression-free survival and overall survival will be followed for up to 5 years, with ongoing evaluations to understand the treatments impact over time.

Researchers are studying an experimental drug called odronextamab for adults with previously untreated follicular lymphoma, a type of non-Hodgkin lymphoma. The trial is a Phase 3, open-label, randomized study comparing odronextamab to rituximab combined with different chemotherapy regimens, which represent the current standard treatment. The study aims to evaluate the safety, tolerability, and how well odronextamab works compared to standard care, including side effects, drug levels in the blood, antibody development against the drug, and quality of life impacts. The study has two parts Part 1 is a non-randomized safety run-in where all participants receive odronextamab alone to assess safety and tolerability. In Part 2, participants are randomly assigned to one of two groups one receiving odronextamab followed by maintenance therapy with odronextamab, and the other receiving rituximab combined with chemotherapy followed by rituximab maintenance. Chemotherapy regimens include CHOP, CVP, or bendamustine, administered as per protocol. Participants will be monitored regularly for treatment side effects, drug concentrations, and immune responses for up to 5 years. Researchers will assess responses using imaging and other tests at multiple time points, including complete response at 30 months and progression-free survival up to 5 years. Quality of life and physical function will also be evaluated using standardized questionnaires. Safety and adverse events will be tracked for up to 2 years, ensuring comprehensive follow-up throughout the study duration.

This research aims to evaluate the immune response and safety of giving a second dose of the varicella chickenpox vaccine using a vaccine made by Sinovac in healthy children aged 15 months to 12 years. The study includes 300 participants who have previously received their first varicella vaccine dose at 12 months of age. Participants will be grouped based on the brand of their first vaccine dose. All participants will receive a single 0.5 mL dose of the Sinovac varicella vaccine as their second dose. The study is open-label and includes five groups according to the first vaccine brand received. The individual participation lasts up to 42 days from enrollment to the last visit. Blood samples will be collected before vaccination and 42 days after to assess immune response. During the study, participants will have blood drawn to measure varicella-zoster virus antibody levels before and after vaccination. Researchers will monitor for any adverse reactions up to 42 days and serious side effects up to 180 days after vaccination. The main outcomes measured include antibody concentration and increase 42 days post-vaccination. The total time commitment for each child is a maximum of 42 days from enrollment to their last onsite visit.