316 matching studies

Sponsor Condition of Interest
Efficacy, Safety, and Tolerability of COMP360 in Participants With TRD
COMPASS Pathways Treatment Resistant Depression
Efficacy, Safety, and Tolerability of a single administration of COMP360 in participants with treatment-resistant depression (TRD) expand

Efficacy, Safety, and Tolerability of a single administration of COMP360 in participants with treatment-resistant depression (TRD)

Type: Interventional

Start Date: Jan 2023

open study

Memantine for the Treatment of Cognitive Impairment in Systemic Lupus Erythematosus
Vanderbilt University Medical Center Lupus Erythematosus, Systemic
A phenome-wide association study (PheWAS) identified an association between a variant in the human gene for the N2A subunit of the N-methyl-D-aspartate (NMDA) receptor, GRIN2A, and Systemic Lupus Erythematosus (SLE). A single nucleotide polymorphism (SNP) in this gene encodes for increased NMDA receptor... expand

A phenome-wide association study (PheWAS) identified an association between a variant in the human gene for the N2A subunit of the N-methyl-D-aspartate (NMDA) receptor, GRIN2A, and Systemic Lupus Erythematosus (SLE). A single nucleotide polymorphism (SNP) in this gene encodes for increased NMDA receptor activity. Based on the potential function of the associated SNP and published literature, alterations in SNP function signaling may underlie a cluster of symptoms. The objective of this study is to evaluate the safety, tolerability and efficacy of memantine, an NMDA receptor antagonist, in a precise patient subset with SLE. Participants will complete a full 14-week clinical trial, receiving either memantine or a placebo. Participants' blood will be drawn to test for various antibodies as well as organ function. Patients' urine will also be collected to assess organ function and pregnancy for females at a number of specific time points. The overall goal is to develop a safe and inexpensive therapeutic approach to reduce debilitating cognitive symptoms in a precisely selected SLE sub-population.

Type: Interventional

Start Date: Aug 2018

open study

Contingency Management for Cannabis Use for Persons With HIV
The University of Texas Health Science Center at San Antonio Marijuana HIV Infections
The purpose of this study is to determine the feasibility and impact of 28-days of monitored abstinence from cannabis use on symptoms of depression and anxiety, pain, sleep, cannabis use withdrawal, HIV viral load and biomarkers of systemic inflammation among PLWH and who use cannabis regularly (weekly... expand

The purpose of this study is to determine the feasibility and impact of 28-days of monitored abstinence from cannabis use on symptoms of depression and anxiety, pain, sleep, cannabis use withdrawal, HIV viral load and biomarkers of systemic inflammation among PLWH and who use cannabis regularly (weekly or more often). This will be a single arm pilot feasibility trial involving a contingency management program to induce cannabis abstinence. Specifically, the contingency management program will provide motivational (monetary) incentives to participants who achieve biochemically verified cannabis abstinence. Over the 28-days of this pilot feasibility trial, participants will attend seven study visits. During these visits, participants will complete survey questionnaires to assess sociodemographic, psychosocial, and behavioral factors. In addition, participants will provide blood and urine specimens for testing and quantitation of HIV viral load, biomarkers of systemic inflammation and for the detection of cannabis and other drugs of abuse.

Type: Interventional

Start Date: Aug 2021

open study

Circuitry-Guided Smoking Cessation in Schizophrenia (UH3)
The University of Texas Health Science Center, Houston Smoking Cessation Nicotine Addiction Schizophrenia
Patients with schizophrenia spectrum disorder (SSD) will be exposed to active repetitive transcranial magnetic stimulation (rTMS) from F8 coil or active rTMS from H coil for smoking cessation. Smoking and brain functional connectivity changes will be assessed at baseline, different stages of rTMS... expand

Patients with schizophrenia spectrum disorder (SSD) will be exposed to active repetitive transcranial magnetic stimulation (rTMS) from F8 coil or active rTMS from H coil for smoking cessation. Smoking and brain functional connectivity changes will be assessed at baseline, different stages of rTMS and/or follow-ups.

Type: Interventional

Start Date: Jun 2022

open study

Long-term Effectiveness of the Antiobesity Medication Phentermine
Wake Forest University Health Sciences Obesity Obesity; Drug Lifestyle, Healthy
The purpose of this research study is to understand the long-term effects of the drug phentermine on weight, blood pressure, other health outcomes, and safety. Phentermine has been approved by the US Food and Drug Administration (FDA) for weight management since 1959, but it has not been approved... expand

The purpose of this research study is to understand the long-term effects of the drug phentermine on weight, blood pressure, other health outcomes, and safety. Phentermine has been approved by the US Food and Drug Administration (FDA) for weight management since 1959, but it has not been approved for long-term use (i.e., treatment lasting more than 12 weeks). This trial is designed to learn about the long-term effects of phentermine for up to 2 years because obesity is a chronic disease and expert guidelines recommend long-term use of anti-obesity medications as one treatment option.

Type: Interventional

Start Date: Jun 2022

open study

Child to Adult Neurodevelopment in Gene Expanded Huntington's Disease
Peggy C Nopoulos Huntington's Disease
Huntington's Disease (HD) is an autosomal dominant disease manifested in a triad of cognitive, psychiatric, and motor signs and symptoms. HD is caused by a triplet repeat (CAG)expansion in the gene Huntingtin (HTT). This disease has classically been conceptualized as a neurodegenerative disease. However,... expand

Huntington's Disease (HD) is an autosomal dominant disease manifested in a triad of cognitive, psychiatric, and motor signs and symptoms. HD is caused by a triplet repeat (CAG)expansion in the gene Huntingtin (HTT). This disease has classically been conceptualized as a neurodegenerative disease. However, recent evidence suggests that abnormal brain development may play an important role in the etiology of HD. Huntingtin (HTT)is expressed during development and through life. In animal studies, the HTT gene has been shown to be vital for brain development. This suggests that a mutant form of HTT (gene-expanded or CAG repeats of 40 and above) would affect normal brain development. In addition, studies in adults who are gene-expanded for HD, but have not yet manifested the illness, (pre-HD subjects) have significant changes in the structure of their brain, even up to 20 years before onset of clinical diagnosis. How far back these changes are evident is unknown. One possibility is that these brain changes are present throughout life, due to changes in brain development,though initially associated with only subtle functional abnormalities. In an effort to better understand the developmental aspects of this brain disease, the current study proposes to evaluate brain structure and function in children, adolescents, and young adults (ages 6-30) who are at risk for developing HD - those who have a parent or grandparent with HD. Brain structure will be evaluating using Magnetic Resonance Imaging (MRI) with quantitative measures of the entire brain, cerebral cortex, as well as white matter integrity via Diffusion Tensor Imaging. Brain function will be assessed by cognitive tests, behavioral assessment, and physical and neurologic evaluation. Subjects that are gene-expanded (GE) will be compared to subjects who are gene non-expanded (GNE). Changes in brain structure and/or function in the GE group compared to the GNE group would lend support to the notion that this disease has an important developmental component.

Type: Observational

Start Date: Jul 2005

open study

A Study Evaluating the Efficacy and Safety of Oral Etrasimod in the Treatment of Adult Participants With...
Pfizer Crohn's Disease
This is a Phase 2/3 study that comprises 5 substudies designed to evaluate the efficacy, safety, and tolerability of oral etrasimod as therapy in adult participants with moderately to severely active Crohn's disease (CD) who are refractory or intolerant to at least 1 of the current therapies for CD... expand

This is a Phase 2/3 study that comprises 5 substudies designed to evaluate the efficacy, safety, and tolerability of oral etrasimod as therapy in adult participants with moderately to severely active Crohn's disease (CD) who are refractory or intolerant to at least 1 of the current therapies for CD (ie, corticosteroids, immunosuppressants, or biologics). The overall duration of this study is up to 282 weeks, inclusive of the Screening Period, Treatment Period of up to 274 weeks (Induction, Extension or Maintenance, and Long-term Extension Periods), and the 4-Week Follow-Up Period for safety assessment.

Type: Interventional

Start Date: Jan 2020

open study

Recombinant Factor VIIa (rFVIIa) for Hemorrhagic Stroke Trial
Joseph Broderick, MD Intracerebral Hemorrhage
The objective of the rFVIIa for Acute Hemorrhagic Stroke Administered at Earliest Time (FASTEST) Trial is to establish the first treatment for acute spontaneous intracerebral hemorrhage (ICH) within a time window and subgroup of patients that is most likely to benefit. The central hypothesis is that... expand

The objective of the rFVIIa for Acute Hemorrhagic Stroke Administered at Earliest Time (FASTEST) Trial is to establish the first treatment for acute spontaneous intracerebral hemorrhage (ICH) within a time window and subgroup of patients that is most likely to benefit. The central hypothesis is that rFVIIa, administered within 120 minutes from stroke onset with an identified subgroup of patients most likely to benefit, will improve outcomes at 180 days as measured by the Modified Rankin Score (mRS) and decrease ongoing bleeding as compared to standard therapy.

Type: Interventional

Start Date: Dec 2021

open study

Pragmatic Evaluation of Events And Benefits of Lipid-lowering in Older Adults
Duke University Cognitive Impairment, Mild Dementia Cardiovascular Diseases
PREVENTABLE is a multi-center, randomized, parallel group, placebo-controlled superiority study. Participants will be randomized 1:1 to atorvastatin 40 mg or placebo. This large study conducted in community-dwelling older adults without cardiovascular disease (CVD) or dementia will demonstrate the... expand

PREVENTABLE is a multi-center, randomized, parallel group, placebo-controlled superiority study. Participants will be randomized 1:1 to atorvastatin 40 mg or placebo. This large study conducted in community-dwelling older adults without cardiovascular disease (CVD) or dementia will demonstrate the benefit of statins for reducing the primary composite of death, dementia, and persistent disability and secondary composites including mild cognitive impairment (MCI) and cardiovascular events.

Type: Interventional

Start Date: Sep 2020

open study

Adjunctive Allogeneic Mesenchymal Stem Cells for Treatment-resistant Bipolar Depression
The University of Texas Health Science Center, Houston Treatment-resistant Bipolar Depression
The overall objective of the investigators is to assess the therapeutic efficacy and tolerability of Allogeneic Bone Marrow Derived Multipotent Mesenchymal Stromal Cells (MSCs) isolated from hematogenous bone marrow for treatment of treatment-resistant bipolar depression patient (TRBD). expand

The overall objective of the investigators is to assess the therapeutic efficacy and tolerability of Allogeneic Bone Marrow Derived Multipotent Mesenchymal Stromal Cells (MSCs) isolated from hematogenous bone marrow for treatment of treatment-resistant bipolar depression patient (TRBD).

Type: Interventional

Start Date: Apr 2022

open study

A Research Study to See How Much CagriSema Lowers Blood Sugar and Body Weight Compared to Tirzepatide...
Novo Nordisk A/S Type 2 Diabetes
This study will look at how well CagriSema helps people with type 2 diabetes lower their blood sugar and body weight. CagriSema is a new investigational medicine. Doctors may not yet prescribe CagriSema. CagriSema will be compared to a medicine called tirzepatide that doctors may prescribe in some... expand

This study will look at how well CagriSema helps people with type 2 diabetes lower their blood sugar and body weight. CagriSema is a new investigational medicine. Doctors may not yet prescribe CagriSema. CagriSema will be compared to a medicine called tirzepatide that doctors may prescribe in some countries. Participants will get either CagriSema or tirzepatide. Which treatment participant get is decided by chance like flipping a coin. Participant will have an equal chance of receiving either drug. For each participant, the study will last for up to one and a half years.

Type: Interventional

Start Date: Jan 2024

open study

A Study Following Women in Menopause Treated With a Non-hormonal Therapy for Hot Flashes and Night Sweats
Astellas Pharma Global Development, Inc. Hot Flashes
Hot flashes and night sweats (also known as vasomotor symptoms or VMS) are the most common symptoms which bother women in menopause. This study will follow women going through menopause who have hot flashes and night sweats that cause them bother. They will be starting a non-hormonal therapy prescribed... expand

Hot flashes and night sweats (also known as vasomotor symptoms or VMS) are the most common symptoms which bother women in menopause. This study will follow women going through menopause who have hot flashes and night sweats that cause them bother. They will be starting a non-hormonal therapy prescribed by their healthcare provider (HCP) to treat these symptoms. The women will visit their HCP's office, research center, or both. They will receive prescriptions for the non-hormonal therapy from their HCP for up to 1 year. This real-world study will provide information on outcomes from various non-hormonal therapies. The study sponsor (Astellas) will not decide which therapy the women receive. However, the sponsor will provide instructions on when the women visit their clinic, and what is recorded during the study. Some of the visits will be in-person, but most will be virtual. The virtual visits can be carried out at home using a smartphone, tablet or computer. The main aim of the study is to check if the hot flashes and night sweats that bother women change after 12 weeks (3 months) of treatment. The study will also check the women's sleep patterns, their productivity at work, and their general well-being before and after starting treatment. The overall safety of the non-hormonal therapies will also be examined.

Type: Observational

Start Date: Nov 2023

open study

A Study to Assess Long-term Safety, Tolerability, and Efficacy of Rocatinlimab in Adult and Adolescent...
Amgen Atopic Dermatitis
The primary objective of this study is to describe the long-term safety and tolerability of rocatinlimab in participants with moderate-to-severe AD. expand

The primary objective of this study is to describe the long-term safety and tolerability of rocatinlimab in participants with moderate-to-severe AD.

Type: Interventional

Start Date: May 2023

open study

A Phase 3 Study of the Safety and Efficacy of Coagulation Factor VIIa (Recombinant) for the Prevention...
Laboratoire français de Fractionnement et de Biotechnologies Hemophilia
This is an interventional, prospective, international, multicenter, single-arm, Phase 3, and sequential efficacy and safety study in adolescents and adults with congenital hemophilia A or B with inhibitors to factor VIII (FVIII) or factor IX (FIX) undergoing elective major surgical procedures. expand

This is an interventional, prospective, international, multicenter, single-arm, Phase 3, and sequential efficacy and safety study in adolescents and adults with congenital hemophilia A or B with inhibitors to factor VIII (FVIII) or factor IX (FIX) undergoing elective major surgical procedures.

Type: Interventional

Start Date: Jun 2024

open study

A Trial That Evaluates Disease Characteristics in Hemophilia B Adult Male Participants Receiving Prophylaxis...
Regeneron Pharmaceuticals Hemophilia B
This study is focused on males who have Hemophilia B and who need regular preventive treatment with factor IX protein (FIX) replacement therapy to prevent and also to control their bleeding events. The aim of the study is to gather at least 6 months of information on bleeding events for each individual... expand

This study is focused on males who have Hemophilia B and who need regular preventive treatment with factor IX protein (FIX) replacement therapy to prevent and also to control their bleeding events. The aim of the study is to gather at least 6 months of information on bleeding events for each individual participant while they continue to use their usual FIX replacement therapy. There is no experimental treatment being tested in this study. The study is informational, and part of a larger program to understand and treat Hemophilia B with a potential experimental new therapy in the future. There is no obligation to agree to taking part in this future study. The study is looking to answer several other research questions to help understand each participant's individual disease characteristics, including: - How often to use FIX replacement therapy, both on a regular basis (prophylaxis) and as needed to treat bleeding events - Measurement of FIX activity (factor IX is a clotting factor) by different laboratories using different types of tests in Hemophilia B participants - Possible complications from the FIX replacement therapy the patient receives (usual standard of care will continue to be used) - How quality of life is affected by Hemophilia B - How joint health is affected by Hemophilia B - How often the participant visits the emergency room, urgent care center, physician's office, hospital, or has a telemedicine visit as a result of bleeding events - Whether the body makes antibodies (a protein produced by the body's immune system) against the FIX replacement therapy you receive, which could make the drug less effective or could lead to side effects

Type: Observational

Start Date: Jan 2024

open study

A Study of Lebrikizumab (LY3650150) in Participants 6 Months to <18 Years of Age With Moderate-to-Severe...
Eli Lilly and Company Atopic Dermatitis Eczema
The main purpose of this study is to measure the effect, safety and how well the body absorbs lebrikizumab in pediatric participants 6 months to <18 years of age with moderate-to-severe atopic dermatitis (AD). expand

The main purpose of this study is to measure the effect, safety and how well the body absorbs lebrikizumab in pediatric participants 6 months to <18 years of age with moderate-to-severe atopic dermatitis (AD).

Type: Interventional

Start Date: Oct 2022

open study

Endurant Stent Graft System vs Excluder Endoprothesis: ADVANCE Trial
Medtronic Cardiovascular Abdominal Aortic Aneurysm Abdominal Aortic Aneurysm >= 5.5 Centimeters in Male (Disorder) Abdominal Aortic Aneurysm >= 5.0 Centimeters in Female (Disorder)
The purpose of this trial is to generate clinical evidence related to key performance outcomes of Endurant II/IIs Stent Graft Systems verses Gore Excluder / Excluder Conformable AAA Endoprosthesis in subjects with Abdominal Aortic Aneurysms. Subjects are randomized and imaging collected at all follow-up... expand

The purpose of this trial is to generate clinical evidence related to key performance outcomes of Endurant II/IIs Stent Graft Systems verses Gore Excluder / Excluder Conformable AAA Endoprosthesis in subjects with Abdominal Aortic Aneurysms. Subjects are randomized and imaging collected at all follow-up time points to assess the primary endpoint.

Type: Interventional

Start Date: Jan 2023

open study

TRISCEND II Pivotal Trial
Edwards Lifesciences Tricuspid Valve Regurgitation Tricuspid Valve Insufficiency Tricuspid Valve Disease Heart Valve Diseases Cardiovascular Diseases
Pivotal trial to evaluate the safety and effectiveness of the Edwards EVOQUE tricuspid valve replacement system expand

Pivotal trial to evaluate the safety and effectiveness of the Edwards EVOQUE tricuspid valve replacement system

Type: Interventional

Start Date: Apr 2021

open study

ATHN Transcends: A Natural History Study of Non-Neoplastic Hematologic Disorders
American Thrombosis and Hemostasis Network Hematologic Disorder Bleeding Disorder Connective Tissue Disorder Hemophilia Thrombosis
In parallel with the growth of American Thrombosis and Hemostasis Network's (ATHN) clinical studies, the number of new therapies for all congenital and acquired hematologic conditions, not just those for bleeding and clotting disorders, is increasing significantly. Some of the recently FDA-approved... expand

In parallel with the growth of American Thrombosis and Hemostasis Network's (ATHN) clinical studies, the number of new therapies for all congenital and acquired hematologic conditions, not just those for bleeding and clotting disorders, is increasing significantly. Some of the recently FDA-approved therapies for congenital and acquired hematologic conditions have yet to demonstrate long-term safety and effectiveness beyond the pivotal trials that led to their approval. In addition, results from well-controlled, pivotal studies often cannot be replicated once a therapy has been approved for general use.(1,2,3,4) In 2019 alone, the United States Food and Drug Administration (FDA) has issued approvals for twenty-four new therapies for congenital and acquired hematologic conditions.(5) In addition, almost 10,000 new studies for hematologic diseases are currently registered on www.clinicaltrials.gov.(6) With this increase in potential new therapies on the horizon, it is imperative that clinicians and clinical researchers in the field of non-neoplastic hematology have a uniform, secure, unbiased, and enduring method to collect long-term safety and efficacy data. ATHN Transcends is a cohort study to determine the safety, effectiveness, and practice of therapies used in the treatment of participants with congenital or acquired non-neoplastic blood disorders and connective tissue disorders with bleeding tendency. The study consists of 7 cohorts with additional study "arms" and "modules" branching off from the cohorts. The overarching objective of this longitudinal, observational study is to characterize the safety, effectiveness and practice of treatments for all people with congenital and acquired hematologic disorders in the US. As emphasized in a recently published review, accurate, uniform and quality national data collection is critical in clinical research, particularly for longitudinal cohort studies covering a lifetime of biologic risk.(7)

Type: Observational

Start Date: Sep 2020

open study

A Study to Assess the Efficacy, Safety, Pharmacodynamics, and Pharmacokinetics of Tazemetostat in Combination...
Epizyme, Inc. Relapsed/Refractory Follicular Lymphoma Follicular Lymphoma Refractory Follicular Lymphoma
The participants of this study would have relapsed/refractory follicular lymphoma. Follicular lymphoma is a type of blood cancer. It is referred to as 'relapsed' when the disease has come back after a period of improvement after that follows a treatment regimen and 'refractory' when treatment no... expand

The participants of this study would have relapsed/refractory follicular lymphoma. Follicular lymphoma is a type of blood cancer. It is referred to as 'relapsed' when the disease has come back after a period of improvement after that follows a treatment regimen and 'refractory' when treatment no longer works. Stage 1 of this trial will study the safety and the level that adverse effects of each of the study drug combinations can be tolerated (known as tolerability). It is also designed to establish a recommended study drug dosage for stage 2 and 3. Stage 1 of the study is completed. Stages 2 and 3 will evaluate and compare how long participants live without their disease getting worse when receiving the study drug in combination with other drug treatment versus the placebo (dummy drug) in combination with other drug treatment.

Type: Interventional

Start Date: Jun 2020

open study

Perinatal Arterial Stroke: a Multi-site RCT of Intensive Infant Rehabilitation (I-ACQUIRE)
Virginia Polytechnic Institute and State University Perinatal Stroke Hemiparesis
This is a Phase III clinical trial to compare the efficacy of two dosages of a new infant rehabilitation protocol - I-ACQUIRE - to usual and customary forms of infant rehabilitation in infants who experienced Perinatal Arterial Stroke (PAS). expand

This is a Phase III clinical trial to compare the efficacy of two dosages of a new infant rehabilitation protocol - I-ACQUIRE - to usual and customary forms of infant rehabilitation in infants who experienced Perinatal Arterial Stroke (PAS).

Type: Interventional

Start Date: Oct 2019

open study

Edwards PASCAL CLASP IID/IIF Pivotal Clinical Trial
Edwards Lifesciences Degenerative Mitral Valve Disease Mitral Regurgitation Mitral Insufficiency Functional Mitral Regurgitation
To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Valve Repair System in patients with degenerative mitral regurgitation (DMR) who have been determined to be at prohibitive risk for mitral valve surgery by the Heart Team, and in patients with functional mitral regurgitation... expand

To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Valve Repair System in patients with degenerative mitral regurgitation (DMR) who have been determined to be at prohibitive risk for mitral valve surgery by the Heart Team, and in patients with functional mitral regurgitation (FMR) on guideline directed medical therapy (GDMT)

Type: Interventional

Start Date: Nov 2018

open study

Transcatheter Mitral Valve Replacement With the Medtronic Intrepid™ TMVR System in Patients With Severe...
Medtronic Cardiovascular Mitral Valve Regurgitation
Multi-center, global, prospective, non-randomized, interventional, pre-market trial. All subjects enrolled with receive the study device. expand

Multi-center, global, prospective, non-randomized, interventional, pre-market trial. All subjects enrolled with receive the study device.

Type: Interventional

Start Date: Oct 2017

open study

Vismodegib, FAK Inhibitor GSK2256098, Capivasertib, and Abemaciclib in Treating Patients with Progressive...
Alliance for Clinical Trials in Oncology Intracranial Meningioma Recurrent Meningioma NF2 Gene Mutation
This phase II trial studies how well vismodegib, focal adhesion kinase (FAK) inhibitor GSK2256098, and capivasertib work in treating patients with meningioma that is growing, spreading, or getting worse (progressive). Vismodegib, FAK inhibitor GSK2256098, capivasertib, and abemaciclib may stop the... expand

This phase II trial studies how well vismodegib, focal adhesion kinase (FAK) inhibitor GSK2256098, and capivasertib work in treating patients with meningioma that is growing, spreading, or getting worse (progressive). Vismodegib, FAK inhibitor GSK2256098, capivasertib, and abemaciclib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

Type: Interventional

Start Date: Aug 2015

open study

Effect of Photobiomodulation on Pain and Healing of the Vertical Releasing Incision After Endodontic...
The University of Texas Health Science Center, Houston Apical Periodontitis Endodontically Treated Teeth Endodontic Disease Apical Cyst Apical Granuloma
The purpose of this study is to evaluate the effect of Photobiomodulation (PBM) in postoperative pain after endodontic microsurgery (EMS) in patients from the University of Texas Health Science Center at Houston, School of Dentistry Graduate Endodontic Clinic and to assess the soft tissue healing... expand

The purpose of this study is to evaluate the effect of Photobiomodulation (PBM) in postoperative pain after endodontic microsurgery (EMS) in patients from the University of Texas Health Science Center at Houston, School of Dentistry Graduate Endodontic Clinic and to assess the soft tissue healing of the vertical releasing incision (VRI) after PBM

Type: Interventional

Start Date: Aug 2024

open study