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Researchers are evaluating the safety, tolerability, and effectiveness of CYB003, a Deuterated Psilocin Analog, compared to a placebo when added to current antidepressant treatment in adults with moderate to severe Major Depressive Disorder (MDD). This Phase III trial focuses on participants aged 18 to 85 years who have had inadequate response to a stable antidepressant dose, aiming to better understand how CYB003 might improve depressive symptoms. Participants receive oral doses of CYB003 or matching placebo along with manualized psychological support provided by trained facilitators. The treatment period includes multiple dosing sessions with monitoring and assessments throughout. Placebo is used as a comparator to evaluate the combined safety and efficacy of CYB003 in this population. During the study, participants undergo evaluations using the Montgomery-Åsberg Depression Rating Scale (MADRS) at several time points, including screening, baseline, and multiple days up to the end of treatment at Day 42. Researchers monitor symptoms, side effects, and overall safety. Participants provide informed consent and are assessed regularly to track changes in depression severity and any adverse events over the course of the study.

Researchers are investigating the effects of (2R,6R)-hydroxynorketamine (HNK) compared to ketamine and saline on adults with chronic neuropathic pain lasting more than 3 months in the extremities. This randomized, double-blind, three-way crossover clinical trial aims to evaluate the pain relief effectiveness and duration of a single infusion of (2R,6R)-HNK. The study also examines improvements in pain qualities, physical function, pain interference, sleep disturbance, and quality of life. Participants will receive each of the three study drugs—(2R,6R)-HNK, ketamine, and saline—in a random order, with a 5-week interval between treatments over a 15-week period. Each drug is given as a 45-minute infusion. The sequences of drug administration vary among groups, and participants maintain their current scheduled pain medications, using additional analgesics only as needed. Safety monitoring includes blood tests, liver function tests, ECGs, physical exams, and vital signs taken before and after drug infusions. During the study, participants undergo detailed pain and sensory assessments before the first treatment and at 7, 14, 21, and 35 days after each infusion. Researchers collect patient-reported outcomes on pain intensity, pain qualities, and the impact of pain on daily life and sleep. Safety is continuously monitored throughout the trial, and participants are evaluated for at least 7 days before and 35 days after each treatment, ensuring comprehensive follow-up over the entire study period.

Researchers are investigating the drug bezuclastinib in an open-label, two-part Phase 2 study for patients with Advanced Systemic Mastocytosis (AdvSM), including Aggressive Systemic Mastocytosis (ASM), Systemic Mastocytosis with an Associated Hematologic Neoplasm (SM-AHN), and Mast Cell Leukemia (MCL). The study aims to evaluate the safety, effectiveness, and how the drug behaves in the body for these serious conditions. Bezuclastinib is given orally as tablets taken continuously in 28-day cycles. The study has two parts: Part I focuses on identifying safe and tolerable doses of bezuclastinib over 18 months, while Part II evaluates its effectiveness by measuring the objective response rate and confirming the relationship between drug exposure and response during another 18-month period. Participants will undergo assessments including clinical evaluations, laboratory tests, and monitoring of their disease status to determine treatment effects and safety. Researchers will track the drug's impact on the disease and patient health throughout the study, which involves continuous treatment and follow-up over the specified time frames.

Researchers are evaluating (Z)-endoxifen as a potential treatment for premenopausal women with estrogen receptor-positive (ER+) and HER2-negative breast cancer. This phase 2 open-label study includes two parts: a pharmacokinetic (PK) phase to understand how the body processes the drug and a treatment phase to assess the drug's effects on tumor growth. The study aims to see if (Z)-endoxifen can slow or stop tumor growth by measuring changes in a biomarker called Ki-67. Participants are premenopausal women who meet specific cancer and health criteria. Participants in the PK part will take (Z)-endoxifen capsules daily at varying doses (20 mg, 40 mg, or 80 mg). Some will also receive a monthly injection of goserelin, a drug that temporarily stops estrogen production in the ovaries. The treatment cohort will receive both (Z)-endoxifen and goserelin. Tumor tissue samples will be collected by breast biopsy after about 4 weeks to assess the Ki-67 biomarker. Participants showing tumor response may continue treatment for up to 24 weeks or until they undergo surgery. Throughout the study, participants will have blood draws to measure drug levels and tumor markers, breast biopsies, imaging scans, and safety assessments. The main outcomes include measuring (Z)-endoxifen levels after 4 weeks, the rate of Ki-67 reduction, and tumor response after 24 weeks. Study participation lasts up to 6 months, including treatment, surgery, and a follow-up visit one month after surgery.

Researchers are evaluating 4D-710, an investigational gene therapy, in adults with cystic fibrosis (CF) lung disease who cannot use or tolerate CFTR modulator therapy. This Phase 1/2, multicenter, open-label trial also includes a sub-study assessing 4D-710 in adults with advanced CF lung disease or frequent lung flare-ups despite using CFTR modulators. The study aims to assess the safety, tolerability, and early effectiveness of this gene therapy in these populations. The trial involves a single dose of 4D-710, which is a gene therapy using a specialized virus to deliver a modified CFTR gene. Participants receive this treatment once, and those in the sub-study must be on a stable CFTR modulator regimen for at least 60 days before screening and continue it during a 24-month observation period. The study monitors participants with CF lung disease ranging from moderate to advanced stages. During the study, participants undergo regular evaluations including lung function tests, oxygen level checks, and monitoring for adverse effects. Researchers track the occurrence and severity of any side effects over a 60-month period. The study also includes assessments of lung health, medication adherence, and clinical status to understand the therapy's impact and safety over time.

Researchers are investigating the effects of XYOSTED as a testosterone replacement therapy in adolescent males aged 12 to under 18 years who have primary or secondary hypogonadism. This Phase 3/4, open-label, multicenter study aims to evaluate how well XYOSTED supports puberty continuation or induction, as well as its dosage, safety, and testosterone level outcomes. Participants have a confirmed deficiency or absence of endogenous testosterone and will be assessed for pubertal development and hormone levels before starting treatment. Participants will receive XYOSTED injections with dosages tailored to their weight and targeted Tanner Stage of puberty. Dose adjustments will be made regularly based on serum total testosterone levels measured at specific intervals after dosing, with evaluations approximately every three months to reach desired testosterone levels. After completing the 52-week primary study, participants may join a 24-month long-term safety extension with clinic visits every six months for ongoing clinical, laboratory, and pharmacokinetic assessments. During the study, participants will undergo thorough clinical examinations including pubertal staging, multiple testosterone measurements, and monitoring for safety and pharmacokinetics throughout treatment and extension periods. Researchers will track changes in testosterone levels from enrollment through week 53 and monitor overall safety. The study includes detailed follow-up and dose management to support pubertal development and assess long-term effects of XYOSTED therapy in this population.

This research aims to evaluate the effects of litifilimab (BIIB059), a monoclonal antibody, in adults with active subacute or chronic cutaneous lupus erythematosus (CLE), with or without systemic lupus erythematosus (SLE). Participants have active skin symptoms of CLE that have not improved with antimalarial therapy or had difficulties continuing that treatment. The study focuses on reducing skin disease activity using several scores including CLA-IGA-R and CLASI, while also assessing safety, immune response, and quality of life. Participants will be randomly assigned to receive either litifilimab or a placebo injection under the skin every four weeks during a 24-week double-blind period where neither participants nor researchers know which treatment is given. After this, all participants will receive litifilimab injections every four weeks for an additional 28 weeks. Those who complete the treatment may join a long-term extension study or enter a follow-up safety period lasting up to 24 weeks. Total participation may last up to 80 weeks. Throughout the study, researchers will monitor skin disease activity using the CLA-IGA-R erythema score and the CLASI-A activity score to see how many participants improve. They will also assess safety, tolerability, immune system effects, and participants' quality of life using questionnaires. These evaluations occur regularly during both treatment periods and follow-up to understand the impact of litifilimab on CLE symptoms and overall health.

Researchers are investigating the biomechanical effects of the Ossur Power Knee, a powered prosthetic knee joint that actively assists with knee flexion and extension, compared to the Ossur Rheo XC, a passive microprocessor-controlled knee (MPK) without active power. This study focuses on adults aged 45 to 75 years with unilateral transfemoral amputation who have been using a prosthesis for at least one year. The research also aims to explore potential differences in prosthetic knee usage between male and female participants. Participants will be fitted and trained on both the Ossur Power Knee and the Ossur Rheo XC in a cross-over design. Each prosthetic knee component will be worn for a 1-month accommodation period before evaluations. The study includes biomechanical testing during walking, stair navigation, slope walking, and sit-to-stand/stand-to-sit activities. Questionnaires and at-home diaries will be used to capture participants' perceptions of comfort, exertion, and stability while using each device. During the study, participants will undergo motion analysis and metabolic energy assessments after each 1-month wear period for each prosthetic knee. Walking speed, metabolic energy cost, and sit-to-stand symmetry will be measured in the laboratory setting. Data will be analyzed to determine the effects of each knee type on gait and mobility, as well as any gender-specific differences. The study aims to improve understanding of powered prosthetic knees to guide prosthetists in component selection and enhance quality of life for those with transfemoral amputations.

This trial seeks to establish whether or not touch sensation can be restored to the breast via neural stimulation. Data will also be obtained to inform future feasibility (including safety), efficacy, and acceptability trials.

Researchers are evaluating the safety and effectiveness of the drug LY4065967 for treating diabetic peripheral neuropathic pain (DPNP). This study is part of a larger chronic pain master protocol aimed at speeding up the development of new treatments for chronic pain. Participants have diabetic peripheral neuropathy mainly affecting their lower limbs and have had this condition for at least six months. The study compares oral LY4065967 to a placebo, with participants randomly assigned to either group. The trial is a Phase 2, randomized, placebo-controlled clinical trial. Treatments are given by mouth, and participants continue their usual diabetes care with stable treatment for at least 90 days before screening. During the study, researchers monitor changes in average pain intensity using a numeric rating scale from baseline to week 8. Participants undergo assessments including blood sugar control (HbA1c), body mass index measurement, and safety monitoring for heart and vitamin B12 status. The trial is designed for adults aged 18 years and older and includes close observation to ensure participant safety throughout the study period.