Tucson

Researchers are evaluating the performance of PathFinder 1.0 software in detecting retinal abnormalities using OCT B-scans from CIRRUS 6000 and 5000 imaging systems. The study aims to measure the sensitivity and specificity of this diagnostic tool in adults with and without various macular abnormalities affecting the central macula. Participants will undergo standard OCT imaging on CIRRUS HD-OCT systems. The PathFinder 1.0 software will analyze these images to identify macular abnormalities such as vitreoretinal interface disruption, hyporeflective spaces within or beneath the retina, ellipsoid zone disruption, and retinal pigment epithelium changes. This is a device study with two groups subjects with no macular abnormalities and subjects with specific retinal changes. The software analysis does not affect clinical care. Participants will attend a single study visit for OCT image acquisition. The study will assess the softwares ability to correctly identify abnormalities by calculating sensitivity, specificity, positive and negative predictive values, rate of acceptable scans, and algorithm repeatability. Participants must be able to complete ophthalmic imaging and comply with study instructions. The total participation involves just this baseline imaging visit with no treatment intervention or follow-up required.

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.

Many people experience wounds that do not heal well or take a long time to heal, including both chronic and acute wounds. This research aims to study the effects of 4-aminopyridine 4-AP, a drug currently used in neurological conditions, to see if it can help speed up wound healing in healthy adults. Previous animal studies showed promising results with faster healing and no adverse effects, making it important to evaluate 4-APs role in human wound repair. Participants in this study will be randomly assigned to receive either 4-aminopyridine capsules or placebo capsules taken every 12 hours. The treatment period lasts for 6 weeks, during which researchers will monitor wound healing progress. The study includes a phase where participants receive either the active drug or placebo to compare effects on skin integrity and wound closure. During the study, participants will have a skin punch biopsy wound that will be monitored for healing over 6 weeks. Researchers will assess the return of skin integrity, wound closure, and hair growth at the biopsy site. Participants must attend scheduled follow-up visits and may be asked to provide wound photographs. The study also tracks safety and tolerability, ensuring participants are able to report any sensory or motor changes. Total participation is about 6 weeks with regular evaluations.

Many patients suffer from traumatic burns, and current treatments mainly focus on infection prevention and fluid management without improving the skins ability to regenerate. This research aims to evaluate the role of 4-aminopyridine 4-AP, a promising agent with a good safety profile, in accelerating burn wound healing in patients with second-degree burns. The study addresses the need for new regenerative treatments that can speed up recovery while allowing existing protocols to continue. Participants will be randomly assigned to receive either 4-aminopyridine capsules 10 mg every 12 hours or a placebo capsule on the same schedule. This phase 2 study will compare these two groups over a 12-month period to assess the treatments effect on the healing process. The study uses triple masking to ensure unbiased results. During the study, participants will be monitored for healing rate, skin graft requirements, scar formation, and scar sensitivity over 12 months. They will provide informed consent and attend scheduled follow-up visits where researchers will evaluate wound healing through sensory and motor assessments and calibrated wound photographs. Safety and adherence will be closely tracked to evaluate the treatments impact and patient outcomes throughout the study period.

Researchers are studying the potential effects of 4-aminopyridine 4-AP on recovery after peripheral nerve injuries caused by traction or crush. The study focuses on men with prostate cancer undergoing robot-assisted radical prostatectomy, as nerve injury during this surgery may lead to erectile dysfunction and urinary continence issues. This research aims to test whether 4-AP can speed up the often slow and unpredictable recovery process after such nerve injuries. Participants will receive either FDA-approved 10 mg 4-aminopyridine tablets or placebo tablets after surgery. The medication is taken orally, with a maximum of two tablets per 24 hours, and must be swallowed whole without breaking or crushing. The treatment period lasts for 60 days following surgery. The placebo is designed to look like the active drug, and participants will be reminded not to take other aminopyridine medications during the study. Throughout the study, participants will be monitored for changes in urinary incontinence and erectile function using standardized questionnaires every seven days for six months. They will also keep a daily drug diary for 90 days and complete sexual activity questionnaires regularly. The study includes follow-up for up to one year to assess recovery progress and safety. The total participation time involves regular assessments and monitoring after the surgery.

Researchers are evaluating the role of a single dose of 4-aminopyridine 4-AP to help diagnose whether nerve injuries from peripheral nerve traction or crush are complete or incomplete. The study aims to speed up the identification of nerve continuity compared to standard electrodiagnostic and clinical assessments. This is a phase 2, randomized, double-blind crossover trial conducted at a single center. Participants will be randomized to receive either a 10 mg dose of 4-aminopyridine followed by a placebo, or placebo followed by the drug, with the order determined randomly. Each participant undergoes baseline sensory and motor testing, blood sampling, and then hourly testing for three hours after each dose to assess sensory and motor function, electrodiagnostic results, and serum 4-AP levels. After completing both treatment arms, testing concludes. Following initial testing, participants will be monitored for 20 weeks with follow-up visits at 2, 6, 12, 18, and 20 weeks, including physical exams and phone interviews at 9 and 15 weeks to assess subjective motor and sensory function. The main outcome measured is the subjective return of sensation during dosing and at various post-injury time points. Each visit or call lasts about 30 minutes.

Researchers are evaluating the safety, tolerability, and early effects of 4D-710, an investigational gene therapy, in adults with cystic fibrosis CF lung disease who cannot use or tolerate existing CFTR modulator therapies. A sub-study also includes adults with advanced CF lung disease or frequent lung flare-ups who are currently on CFTR modulator therapy. This Phase 12 open-label trial aims to find appropriate dosing and assess potential benefits for these patient groups. Participants receive a single inhaled dose of 4D-710, which is a gene therapy designed to deliver a corrected version of the CFTR gene to lung cells. The study includes a dose exploration phase for those ineligible for modulator therapy, a dose expansion phase at selected doses, and a sub-study for participants on modulator therapy receiving various doses. Each participant undergoes one administration of the therapy during the trial. Throughout the study, participants are monitored for adverse events over a 60-month period. Evaluations include lung function tests, oxygen saturation measurements, and tracking of pulmonary exacerbations. Participants maintain their existing treatments if applicable, and researchers assess safety and early signs of effectiveness. The total study duration extends up to approximately nine years, including long-term observation after dosing.

Researchers are evaluating the safety and effectiveness of tenapanor in adults with Chronic Idiopathic Constipation CIC. This study is a 26-week, multi-center, randomized, double-blind, placebo-controlled trial followed by a 4-week treatment-free safety follow-up period. It aims to compare three different doses of tenapanor with a placebo taken twice daily to assess their impact on constipation symptoms. The study includes a 2-week screening period to confirm eligibility, followed by a 26-week randomized treatment period where patients receive either 5 mg, 25 mg, or 50 mg of tenapanor twice daily, or a matching placebo. Patients record their constipation symptoms daily in an electronic diary. After the treatment period, there is a 4-week safety follow-up without treatment to monitor any adverse effects. Participants will have regular visits every 2 to 6 weeks for safety checks including medical assessments, vital signs, ECG, and lab tests. Their symptom diaries will be reviewed throughout the study. The main outcome measured is the durable complete spontaneous bowel movements response at 12 weeks. Secondary outcomes include changes in bowel movement frequency, stool consistency, and straining. The total study duration is approximately 32 weeks including all phases.

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 high-risk, early-stage breast cancer, specifically targeting two types triple-negative breast cancer TNBC and hormone receptor-low positiveHER2-negative breast cancer. These cancers are characterized by low or no HER2 protein and low hormone receptor presence. The study aims to evaluate if adding sacituzumab tirumotecan sac-TMT to pembrolizumab and chemotherapy can better reduce cancer cells in tumors and lymph nodes and improve the length of time patients live without cancer progression compared to pembrolizumab with chemotherapy alone. Participants in this trial receive one of two treatment plans. One group gets sacituzumab tirumotecan intravenously every two weeks plus pembrolizumab every three weeks for 12 weeks, followed by pembrolizumab with carboplatin and paclitaxel for another 12 weeks. After 3 to 6 weeks, surgery and optional radiation therapy take place, followed by pembrolizumab for about 28 weeks. Participants with remaining disease may receive additional treatments chosen by their doctors, including olaparib, capecitabine, doxorubicin, epirubicin, or cyclophosphamide. The other group receives chemotherapy drugs carboplatin and paclitaxel with pembrolizumab initially, then pembrolizumab with cyclophosphamide and doxorubicin or epirubicin, followed by surgery, optional radiation, and pembrolizumab for about 28 weeks, with similar additional options for residual disease. During the study, participants undergo core needle biopsies, receive intravenous infusions of study drugs, and have surgery and possible radiation therapy. Researchers assess outcomes such as the percentage of participants with no detectable cancer cells at surgery pathological complete response, event-free survival up to about 92 months, and overall survival up to nearly 10 years. Quality of life and side effects are monitored through questionnaires and adverse event tracking. The study lasts several years, with various assessments throughout treatment and follow-up periods to gather comprehensive data on treatment effects and safety.