556 matching studies

Study is registered in ResearchMatch
Sponsor Condition of Interest
AIM's Writing for Healing: A Workshop for Individuals Living With Paralysis
University of Alabama at Birmingham Spinal Cord Injuries Multiple Sclerosis Transverse Myelitis Amyotrophic Lateral Sclerosis
The UAB Institute for Arts In Medicine (AIM) is currently implementing an expressive emotional writing pilot project for adults with paralysis caused by neurological conditions such as traumatic head or spinal cord injury. expand

The UAB Institute for Arts In Medicine (AIM) is currently implementing an expressive emotional writing pilot project for adults with paralysis caused by neurological conditions such as traumatic head or spinal cord injury.

Type: Observational

Start Date: Sep 2020

open study

Beta-Agonist Versus OnabotulinumtoxinA Trial for Urgency Urinary Incontinence
Women and Infants Hospital of Rhode Island Urgency Urinary Incontinence
The goal of this clinical trial is to compare treatment outcomes between an oral medication (beta agonist) versus onabotulinumtoxinA injections in women with urgency urinary incontinence (UUI). Participants will be randomly selected to receive one of the two treatments. The primary outcome measure1 expand

The goal of this clinical trial is to compare treatment outcomes between an oral medication (beta agonist) versus onabotulinumtoxinA injections in women with urgency urinary incontinence (UUI). Participants will be randomly selected to receive one of the two treatments. The primary outcome measure will be at 3 months, and women will be followed for a total of 12 months. Based on patient expert input, there are 2 primary outcomes: Treatment satisfaction and urinary symptom severity.

Type: Interventional

Start Date: Jun 2023

open study

Transferring Speed of Processing Gains to Everyday Cognitive Tasks After Stroke
University of Alabama at Birmingham Stroke Cognitive Dysfunction
This study will compare two approaches to cognitive rehabilitation in adults with stroke with persistent, mild to moderate, cognitive impairment. Both approaches will feature a web-based computer "game" that trains cognitive processing speed, i.e., how quickly individuals process information that t1 expand

This study will compare two approaches to cognitive rehabilitation in adults with stroke with persistent, mild to moderate, cognitive impairment. Both approaches will feature a web-based computer "game" that trains cognitive processing speed, i.e., how quickly individuals process information that they receive through their senses. This training is termed Speed of Processing Training (SOPT). One approach will add (A) in-lab training on everyday activities with important cognitive components and (B) procedures designed to transfer improvements in cognition from the treatment setting to everyday life. This approach is termed Constraint-Induced Cognitive Therapy (CICT). The other approach will add (A) in-lab training on relaxation, healthy nutrition, and healthy sleep and (B) procedures designed to promote integration of these lifestyle changes into everyday life. This approach is termed Brain Fitness-Heath Education Lifestyle Program (BF-HELP). Both CICT and BF-HELP will involve 35 hours of training. Ten 1-hour sessions of SOPT will be scheduled in the home with training conducted independently by participants. Ten 2.5 hours of in-lab, face-to-face, therapist directed sessions will be scheduled. These sessions will feature a brief period of SOPT; the bulk of the sessions will be committed to in-lab training on the target behaviors and the procedures designed to promote transfer of therapeutic gains to daily life; The set of the latter procedures is termed the Transfer Package. To accommodate the demands of participants' other activities, training sessions will be permitted to be scheduled as tightly as every weekday over 2 weeks or as loosely as every other weekday or so over 4 weeks. Family caregivers in both groups will also receive training on how to best support participants in their therapeutic program. The study will also test if there is an advantage to placing follow-up phone calls after treatment ends. The purpose of the calls will be to support transition of any behavioral changes achieved during treatment into everyday life on a long-term basis. Participants will be randomly assigned to the interventions. Testing will happen one month before treatment, one day before treatment, one day afterwards, and 6- and 12-months afterwards. Outcomes measured will include cognitive processing speed, cognitive function on laboratory tests, and spontaneous performance of everyday activities with important cognitive components in daily life.

Type: Interventional

Start Date: Jun 2022

open study

A Study to Learn About the Safety of Litifilimab (BIIB059) Injections and Whether They Can Improve1
Biogen Lupus Erythematosus, Systemic
In this study, researchers will learn more about a study drug called litifilimab (BIIB059) in participants with systemic lupus erythematosus (SLE). The study will focus on participants who have active disease and are already taking standard of care medications. These may include antimalarials, ster1 expand

In this study, researchers will learn more about a study drug called litifilimab (BIIB059) in participants with systemic lupus erythematosus (SLE). The study will focus on participants who have active disease and are already taking standard of care medications. These may include antimalarials, steroids, and immunosuppressants. The main objective of the study is to learn about the effect litifilimab has on lowering the activity of the disease. The main question researchers want to answer is: - How many participants have an improvement in their symptoms after 52 weeks of treatment? Researchers will answer this and other questions by measuring the symptoms of SLE over time using a variety of scoring tools. These include the SLE Responder Index (SRI), the Systemic Lupus Erythematosus Disease Activity Index-2000 (SLEDAI-2K), and the Patient Global Assessment - Visual Analog Scale (PGA-VAS). Researchers will also learn more about the safety of litifilimab. They will study how participants' immune systems respond to litifilimab. Additionally, they will measure the effect litifilimab and SLE have on the quality of life of participants using a group of questionnaires. The study will be done as follows: - After screening, participants will be randomized to receive either a high or low dose of litifilimab, or placebo. A placebo looks like the study drug but contains no real medicine. - All participants will receive either litifilimab or placebo as injections under the skin once every 4 weeks. The treatment period will last 52 weeks. Participants will continue to take their standard of care medications. - Neither the researchers nor the participants will know if the participants are receiving litifilimab or placebo. - There will be a follow-up safety period that lasts up to 24 weeks. - In total, participants will have up to 22 study visits. The total study duration for participants will be up to 80 weeks.

Type: Interventional

Start Date: Jul 2021

open study

Pain Relief for OsteoArthritis Through Combined Treatment (PROACT)
University of Florida Osteoarthritis of Knee
This mechanistic clinical trial proposes to test whether a five-day course of mindfulness meditation training (MMT) and tDCS, and their combination, can enhance pain modulatory balance and pain-related brain function, reduce clinical pain, among African Americans and non-Hispanic whites with knee o1 expand

This mechanistic clinical trial proposes to test whether a five-day course of mindfulness meditation training (MMT) and tDCS, and their combination, can enhance pain modulatory balance and pain-related brain function, reduce clinical pain, among African Americans and non-Hispanic whites with knee osteoarthritis (OA). This approach will provide evidence that targeting stress and pain-related brain function will reduce OA-related pain and ethnic group differences therein.

Type: Interventional

Start Date: Mar 2020

open study

Acceptance and Commitment Therapy for Depressed Individuals Living With Spinal Cord Injury Sustaine1
University of Alabama at Birmingham Depression Spinal Cord Injuries
This randomized controlled trial aims to assess effects of videoconferencing acceptance and commitment therapy (ACT) on mental health outcomes in individuals living with spinal cord injuries (SCI). A total of 40 individuals living with SCI sustained within 5 years and experiencing depressive sympto1 expand

This randomized controlled trial aims to assess effects of videoconferencing acceptance and commitment therapy (ACT) on mental health outcomes in individuals living with spinal cord injuries (SCI). A total of 40 individuals living with SCI sustained within 5 years and experiencing depressive symptoms will be recruited and randomly assigned to either the ACT group or the wait-list control group. The ACT group will receive 8 weekly individual ACT sessions guided by a coach through videoconferencing. The wait-list group will receive ACT sessions after the study period ends. We will provide psychoeducation materials related to SCI as supplemental resources to both groups. Mental health outcomes using self-reported questionnaires will be collected at pretest, posttest, and 2-month follow-up. Exploratory hypotheses are that the group undergoing the ACT intervention supplemented with psychoeducation will show improvements in mental health outcomes (e.g., depression) and ACT processes (e.g., psychological flexibility) at posttest and 2-month follow-up, compared to the wait-list control group provided with psychoeducation materials alone. Interviews will be conducted at posttest to explore the participants' experiences in ACT.

Type: Interventional

Start Date: Mar 2023

open study

American Lung Association (ALA) Lung Health Cohort
Johns Hopkins University Lung Diseases
The ALA-LHC is a longitudinal, multi-center cohort study that will enroll approximately 4,000 young adults between the ages of 25-35 who do not have severe lung disease. The overarching objective of the ALA-LHC is to establish a national cohort of young adults for the purpose of defining lung healt1 expand

The ALA-LHC is a longitudinal, multi-center cohort study that will enroll approximately 4,000 young adults between the ages of 25-35 who do not have severe lung disease. The overarching objective of the ALA-LHC is to establish a national cohort of young adults for the purpose of defining lung health and developing targets to intercept chronic lung disease at its earliest stages.

Type: Observational

Start Date: Oct 2021

open study

Accessible and Inclusive Diabetes Telecoaching Self-Management Program
University of Alabama at Birmingham Diabete Type 2 Disability Physical
The purpose of this study is to develop and pilot test an accessible and inclusive Artificial Intelligence (AI)-assisted, individualized, family-focused lifestyle modification intervention (AI4DM) for glycemic control in people with disabilities. expand

The purpose of this study is to develop and pilot test an accessible and inclusive Artificial Intelligence (AI)-assisted, individualized, family-focused lifestyle modification intervention (AI4DM) for glycemic control in people with disabilities.

Type: Interventional

Start Date: Oct 2022

open study

NAUTICAL: Effect of Natriuretic Peptide Augmentation on Cardiometabolic Health in Black Individuals
University of Alabama at Birmingham Diabetes Mellitus Cardiovascular Diseases Insulin Sensitivity/Resistance Metabolic Disease Natriuretic Peptides
Black individuals are more likely to have decreased insulin sensitivity which results in a high risk for the development of cardiometabolic disease. The reasons for this are incompletely understood. Natriuretic peptides (NPs) are hormones produced by the heart that play a role in regulating the met1 expand

Black individuals are more likely to have decreased insulin sensitivity which results in a high risk for the development of cardiometabolic disease. The reasons for this are incompletely understood. Natriuretic peptides (NPs) are hormones produced by the heart that play a role in regulating the metabolic health of an individual. Low circulating level of NPs is an important contributor to increased risk for diabetes. The NP levels are relatively lower among Black individuals thus affecting their metabolic health and putting them at a higher risk for diabetes. This study aims to test the hypothesis that by augmenting NP levels using sacubitril/valsartan, among Black Individuals one can improve their metabolic health (as measured by insulin sensitivity & energy expenditure) and help establish the role of NPs in the underlying mechanism behind increased risk for cardiometabolic disease in these population.

Type: Interventional

Start Date: Aug 2020

open study

Optimizing Protein Patterns for Skeletal Muscle Preservation and Sleep in the Medical Management of1
University of Alabama at Birmingham Parkinson Disease
The purpose of this pilot study is to generate preliminary data on the impact of the dietary protein pattern on markers of skeletal muscle health and drug efficacy in Parkinson disease. expand

The purpose of this pilot study is to generate preliminary data on the impact of the dietary protein pattern on markers of skeletal muscle health and drug efficacy in Parkinson disease.

Type: Interventional

Start Date: Oct 2022

open study

Study of Lenacapavir and Emtricitabine/Tenofovir Disoproxil Fumarate (F/TDF) in Prevention of HIV i1
Gilead Sciences Pre-Exposure Prophylaxis of HIV Infection
The goal of this clinical study is to look at how lenacapavir (LEN) passes through the body and to assess the safety of LEN and emtricitabine/tenofovir disoproxil fumarate (F/TDF) for prevention of HIV in the cisgender women in the US. The primary objectives of this study are: 1) to characterize t1 expand

The goal of this clinical study is to look at how lenacapavir (LEN) passes through the body and to assess the safety of LEN and emtricitabine/tenofovir disoproxil fumarate (F/TDF) for prevention of HIV in the cisgender women in the US. The primary objectives of this study are: 1) to characterize the pharmacokinetics (PK) of LEN in United States (US) cisgender women; 2) to evaluate the safety of LEN and F/TDF for pre-exposure prophylaxis (PrEP) in US cisgender women; and 3) to evaluate the general acceptability of LEN injections and oral F/TDF in US cisgender women.

Type: Interventional

Start Date: Nov 2023

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 tha1 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 the1 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

PRECISION-BP: Precision Chronopharamacotherapy Targeting NP-RAAS-BP Rhythm Axis
University of Alabama at Birmingham Obesity Cardiovascular Diseases Hypertension Nocturnal Blood Pressure Natriuretic Peptides
Obese individuals have a higher prevalence of nocturnal hypertension and non-dipping blood pressure (BP). These conditions are associated with an increased risk of cardiovascular (CV) events and death. Natriuretic Peptides (NPs) are hormones produced by the heart which directly regulate BP by causi1 expand

Obese individuals have a higher prevalence of nocturnal hypertension and non-dipping blood pressure (BP). These conditions are associated with an increased risk of cardiovascular (CV) events and death. Natriuretic Peptides (NPs) are hormones produced by the heart which directly regulate BP by causing dilation of blood vessels and by removing sodium and water from the body. NPs have a 24-hour day-night rhythm and this controls the day-night rhythm of BP as well. The NP-BP rhythm relationship is broken down in obese individuals. Obese individuals also have lower circulating NP levels. Lower circulating levels of NPs and elevated renin hormone (a part of the Renin-Angiotensin-Aldosterone System [RAAS]) at nighttime may contribute to the high nocturnal blood pressure in obese individuals which puts them at a higher risk of developing CV events. This current study seeks to determine the biological implications of chronopharmacology for synchronizing NP-RAAS-based blood pressure therapy with the physiological diurnal rhythms to restore the normal diurnal rhythm of blood pressure in obese individuals.

Type: Interventional

Start Date: Feb 2022

open study

ICoN-1 Phase 3 Study of the Efficacy and Safety of Treatment With MNKD-101, Clofazimine Inhalation1
Mannkind Corporation MAC Lung Disease Treatment Refractory MAC Lung Disease Mycobacterium Infections, Nontuberculous
This clinical trial is designed to compare the efficacy and safety of Clofazimine Inhalation Suspension versus placebo when added to guideline-based therapy (GBT) expand

This clinical trial is designed to compare the efficacy and safety of Clofazimine Inhalation Suspension versus placebo when added to guideline-based therapy (GBT)

Type: Interventional

Start Date: Sep 2024

open study

A Study to Assess BMS-986453 in Participants With Relapsed and/or Refractory Multiple Myeloma
Juno Therapeutics, Inc., a Bristol-Myers Squibb Company Relapsed and/or Refractory Multiple Myeloma
The purpose of this study is to assess BMS-986453 in participants with relapsed and/or refractory multiple myeloma (RRMM). expand

The purpose of this study is to assess BMS-986453 in participants with relapsed and/or refractory multiple myeloma (RRMM).

Type: Interventional

Start Date: Jan 2024

open study

Pulsed Field Ablation (PFA) Vs Anti-Arrhythmic Drug (AAD) Therapy As a First Line Treatment for Per1
Boston Scientific Corporation Persistent Atrial Fibrillation
The purpose of this study is to establish the safety and effectiveness of pulsed field ablation as a first-line ablation treatment for subjects with persistent atrial fibrillation as compared to subjects who received an initial treatment with anti-arrhythmic drugs. expand

The purpose of this study is to establish the safety and effectiveness of pulsed field ablation as a first-line ablation treatment for subjects with persistent atrial fibrillation as compared to subjects who received an initial treatment with anti-arrhythmic drugs.

Type: Interventional

Start Date: Dec 2023

open study

A Study to Test How Effective Belumosudil Tablets Are for Treating Adult Participants With Chronic1
Sanofi Lung Transplant Rejection
This double-blind, randomized, placebo-controlled, multinational, multicenter, parallel-group, Phase 3, 2-arm, study will investigate the efficacy and safety of belumosudil compared with placebo, both administered on top of azithromycin and standard-of-care regimen of immunosuppression in male or f1 expand

This double-blind, randomized, placebo-controlled, multinational, multicenter, parallel-group, Phase 3, 2-arm, study will investigate the efficacy and safety of belumosudil compared with placebo, both administered on top of azithromycin and standard-of-care regimen of immunosuppression in male or female participants at least 1 year after bilateral lung transplant, who are at least 18 years of age and who have evidence of progressive CLAD despite azithromycin therapy. Study details include: The study duration will be up to 31 weeks for participants not entering the open-label extension (OLE) period and up to 57 weeks for participants entering the OLE period but not the long-term OLE. The treatment duration will be up to 26 weeks for participants not entering the OLE period and up to 52 weeks for participants entering the OLE period but not the long-term OLE. The number of visits will be up to 10 visits for participants not entering the OLE period and up to 16 visits for participants entering the OLE period but not the long-term OLE. For participants who enter the long-term OLE, treatment and study participation will continue with visits every 12 weeks per protocol specifications.

Type: Interventional

Start Date: Oct 2023

open study

The Study of Immunization in People Living With HIV Undergoing an ATI for Elicitation of VRC01-line1
National Institute of Allergy and Infectious Diseases (NIAID) Chronic HIV Infection
This is a multicenter controlled interventional trial. This phase 1 trial is the first study to assess 426c.Mod.Core-C4b adjuvanted with 3M-052-AF + aluminum hydroxide suspension (Alum) in people living with HIV (PLWH). expand

This is a multicenter controlled interventional trial. This phase 1 trial is the first study to assess 426c.Mod.Core-C4b adjuvanted with 3M-052-AF + aluminum hydroxide suspension (Alum) in people living with HIV (PLWH).

Type: Interventional

Start Date: Jan 2024

open study

Study of the Efficacy and Safety of Inhaled Treprostinil in Subjects With Progressive Pulmonary Fib1
United Therapeutics Progressive Pulmonary Fibrosis Interstitial Lung Disease
Study RIN-PF-305 is designed to evaluate the safety and efficacy of inhaled treprostinil in subjects with progressive pulmonary fibrosis (PPF) over a 52-week period. expand

Study RIN-PF-305 is designed to evaluate the safety and efficacy of inhaled treprostinil in subjects with progressive pulmonary fibrosis (PPF) over a 52-week period.

Type: Interventional

Start Date: Oct 2023

open study

A 52-Week Study of Ritlecitinib Oral Capsules in Adults and Adolescents With Nonsegmental Vitiligo1
Pfizer Stable Nonsegmental Vitiligo Active Nonsegmental Vitiligo
A 52-Week Study of Ritlecitinib Oral Capsules in Adults and Adolescents with Nonsegmental Vitiligo (Active and Stable) Tranquillo expand

A 52-Week Study of Ritlecitinib Oral Capsules in Adults and Adolescents with Nonsegmental Vitiligo (Active and Stable) Tranquillo

Type: Interventional

Start Date: Dec 2022

open study

Nivolumab and Tovorafenib for Treatment of Craniopharyngioma in Children and Young Adults
Sabine Mueller, MD, PhD Craniopharyngioma, Child Craniopharyngioma Recurrent Craniopharyngioma
The current study assesses the tolerability and efficacy of combination therapy with PD-1 (nivolumab) and pan-RAF-kinase (Tovorafenib) inhibition for the treatment of children and young adults with craniopharyngioma. expand

The current study assesses the tolerability and efficacy of combination therapy with PD-1 (nivolumab) and pan-RAF-kinase (Tovorafenib) inhibition for the treatment of children and young adults with craniopharyngioma.

Type: Interventional

Start Date: Sep 2022

open study

(Summit) A Study to Evaluate the Efficacy and Safety of CGT9486 Versus Placebo in Patients With Ind1
Cogent Biosciences, Inc. SSM Mastocytosis, Indolent Mastocytosis, Systemic Mastocytosis ISM
This is a multi-part, randomized, double-blind, placebo-controlled Phase 2 clinical study comparing the safety and efficacy of bezuclastinib (CGT9486) plus best supportive care (BSC) with placebo plus BSC in patients with nonadvanced systemic mastocytosis (NonAdvSM), including indolent systemic mas1 expand

This is a multi-part, randomized, double-blind, placebo-controlled Phase 2 clinical study comparing the safety and efficacy of bezuclastinib (CGT9486) plus best supportive care (BSC) with placebo plus BSC in patients with nonadvanced systemic mastocytosis (NonAdvSM), including indolent systemic mastocytosis and smoldering systemic mastocytosis, whose symptoms are not adequately controlled by BSC. This study will be conducted in three parts. Patients in Parts 1a, 1b and 2 will receive bezuclastinib or placebo, and may roll over onto Part 3 to receive treatment with bezuclastinib.

Type: Interventional

Start Date: Jun 2022

open study

A Study to Evaluate Sapablursen (Formerly ISIS 702843, IONIS-TMPRSS6-LRx) in Patients With Polycyth1
Ionis Pharmaceuticals, Inc. Phlebotomy Dependent Polycythemia Vera
The main purpose of this study is to evaluate the efficacy of sapablursen in reducing the frequency of phlebotomy and in improving quality of life assessments in participants with polycythemia vera. expand

The main purpose of this study is to evaluate the efficacy of sapablursen in reducing the frequency of phlebotomy and in improving quality of life assessments in participants with polycythemia vera.

Type: Interventional

Start Date: Dec 2021

open study

Safety and Efficacy Trial of Epcoritamab Combinations in Subjects With B-cell Non-Hodgkin Lymphoma1
Genmab Diffuse Large B-Cell Lymphoma Follicular Lymphoma
The purpose of this trial is to measure the safety and effectiveness of epcoritamab (EPKINLY™), either by itself or together with other therapies, when treating subjects with B-cell non-Hodgkin Lymphoma (B-NHL). The aim of the first part of the trial is to identify the most appropriate dose of epco1 expand

The purpose of this trial is to measure the safety and effectiveness of epcoritamab (EPKINLY™), either by itself or together with other therapies, when treating subjects with B-cell non-Hodgkin Lymphoma (B-NHL). The aim of the first part of the trial is to identify the most appropriate dose of epcoritamab, and the aim of the second part of the trial is to assess the selected epcoritamab dose in a larger group of participants with B-NHL. All participants in this trial will receive either epcoritamab alone, or epcoritamab combined with another standard treatment regimen, with a total of 10 different treatment arms being studied. Trial details include: - The total trial duration will be up to 6 years. - The treatment duration for each participant depends upon which arm of treatment they are assigned to receive, but will be no more than 3 years. - The visit frequency for each participant depends upon which arm of treatment they are assigned to receive, but will be weekly to start for all participants, then will decrease to either: every 2 weeks, or every 3 weeks, or every 4 weeks, or every 8 weeks. - All participants will receive active drug; no one will be given placebo. Participants who receive treatment with epcoritamab will have it injected right under the skin. Participants will receive a different regimen of epcoritamab depending upon which arm of treatment they are assigned. Participants who receive standard treatments will have IV infusions and/or oral administration of those treatments. Participants will receive a different standard treatment regimen depending upon which arm of treatment they are assigned. Arm 9 (follicular lymphoma (FL)) is still open for enrolment of new patients, while the other arms have closed their recruitment.

Type: Interventional

Start Date: Nov 2020

open study