62 Clinical Trials for Various Conditions
This study is open to people aged 18 years or older with schizophrenia. People can join the study if they are willing to use a smartphone app called CT-155. This app is being developed to help people with schizophrenia manage their negative symptoms. The purpose of this study is to gather new information on CT-155. Researchers want to see how well it works, how well participants use the study app, and how it affects the use of health care services. Participants use the app for 16 weeks. They may continue using it for another 16 weeks. During the study, participants continue with their normal treatment for schizophrenia. Participants are in the study for about a year. During this time, they visit the study site every 2 months. During this study, doctors regularly check participants' schizophrenia symptoms and overall quality of life. Researchers may also compare the healthcare data of study participants with a similar group of people with schizophrenia who are not part of the study. The doctors also regularly check participants' health and take note of any unwanted effects.
This study evaluates the feasibility and acceptability of a prototype for NST-SPARK (version 1.5). This is an augmented reality (AR) mobile phone application that uses Recovery-oriented Cognitive Therapy (CT-R) to target negative symptoms of schizophrenia. NST-SPARK uses a game AR activity to recapitulate the beginning activation and engagement phase of each CT-R session as per standardized practices for this therapeutic modality.
The goal of this clinical trial is to evaluate the Safety, Tolerability, Pharmacodynamics, and Pharmacokinetics of the Co-Administration of Roluperidone and Olanzapine in Adult Subjects with Moderate to Severe Negative Symptoms of Schizophrenia. The main question this clinical trial aims to answer are the pharmacodynamic and pharmacokinetic effects and safety of the concomitant therapy of Roluperidone with an established and widely used antipsychotic, such as olanzapine in order to provide further guidance to clinical practitioners that may prescribe off-label use of these drugs concomitantly in clinical practice. Eligible Participants will undergo the following study phases in the clinic: * Screening Phase: Between 2 and up to 28 days during which study eligibility will be established and subjects receiving psychotropics will be washed out. Subjects will remain inpatient at the clinical site at least through the end of Treatment Phase 2. * Treatment Phase 1: After the Baseline Visit, Roluperidone 64 mg/day will be administered as a monotherapy for 7 days (Days 1-7). * Treatment Phase 2: Concomitant administration of Olanzapine 10 mg/day and Roluperidone 64 mg/day for 10 days, starting on Day 8 (Days 8-17). Subjects may be discharged from the clinic at least 48 hours after the last administration of the study drugs and after the collection of the last plasma sample; however, the inpatient period may be extended at the discretion of the investigator. End of Study (EOS): Will take place at least 14 days after the last dose of the study.
The purpose of the proposed an open label extension (OLE) study is to evaluate the maintained efficacy and safety of a second consecutive course of Click Therapeutics Study App as an adjunct treatment to standard of care (SOC) in participants who were on the Study App and have recently completed the Click Therapeutics Randomized Clinical Trial NCT05838625.
This study evaluates the efficacy of two prescription digital therapeutics (PDT) in addition to standard of care (SOC) therapy for the treatment of experiential negative symptoms of schizophrenia in late adolescents and adults.
This study will be conducted to evaluate the efficacy, safety, and tolerability of AVP-786, as compared with placebo, for the treatment of negative symptoms of schizophrenia.
This study will recruit persons with schizophrenia or schizoaffective disorder and will use an oral glucose tolerance test to test the hypothesis that insulin resistance drives inflammation.
The main purpose of this study is to learn how transcranial magnetic stimulation (TMS) helps improve negative symptoms of schizophrenia. These 'negative symptoms' include anhedonia (the inability to enjoy things), low motivation, and decreased facial expression. TMS is a noninvasive way of stimulating the brain. TMS uses a magnetic field to cause changes in activity in the brain. The magnetic field is produced by a coil that is held next to the scalp. In this study we will be stimulating the brain to learn more about how TMS may improve these symptoms from schizophrenia.
MIN-101C07 is a multicenter, multinational, randomized, double-blind, placebo-controlled, parallel-group study to evaluate the efficacy and safety of roluperidone in adult schizophrenia patients.The primary objective is to evaluate the efficacy of 2 fixed doses of roluperidone compared to placebo in improving the negative symptoms of schizophrenia over 12 weeks of double-blind treatment as measured by the change in Positive and Negative Syndrome Scale (PANSS) Marder negative symptoms factor score (NSFS) over 12 weeks.
The purpose of this study is to determine whether add-on luvadaxistat is superior to placebo on the Positive and Negative Syndrome Scale Negative Symptom Factor Score (PANSS NSFS).
To evaluate the efficacy and safety of adjunctive pimavanserin compared with adjunctive placebo in the treatment of the negative symptoms of schizophrenia
This is a multicenter, randomized, double-blind, placebo-controlled, three period crossover study to evaluate the effects of RO5545965 on the functioning of key brain circuitry involved in negative symptoms using functional magnetic resonance imaging (fMRI) and reward-based learning in stable participants with mild to moderate negative symptoms of schizophrenia treated with antipsychotics. Participants will be randomized to one of six different sequences during which each participant will receive three 3-week treatment courses with RO5545965 5 milligrams (mg), RO5545965 15 mg and placebo. Each treatment period will be separated by a washout period of 14 days. Total duration of study will be approximately 17 weeks.
The purpose of this study is to attempt to treat cognitive and negative symptoms of schizophrenia, with the nutritional supplement N-acetylcysteine (NAC). Schizophrenia is a chronic mental disorder that affects approximately 65 million people worldwide, and causes significant disability and suffering. Patients with schizophrenia often hear voices and have persecutory delusions. Though these are the most recognizable features of the illness, the deficits most closely linked to disability are known as cognitive deficits and negative symptoms. Cognitive abilities refer to the ability to perform mental tasks that require focus and attention, and also include memory and verbal skills. Negative symptoms refer to a lack of interest in the world, and decreased social interactions. In our study, the investigators aim to improve these symptoms and deficits by targeting the glutamate system. Glutamate is the major excitatory neurotransmitter in the brain, and its regulation is abnormal in schizophrenia: glutamate levels are too low at some receptors, and too high at others. As well, free radicals surrounding glutamate receptors also interfere with their proper function. N-acetylcystine (NAC) is a safe and widely-available dietary supplement that may restore glutamate to its correct levels in the brain, and may also help protect the brain from antioxidant damage. In our study, patients with schizophrenia will be randomly assigned to receive either NAC or placebo for 8 weeks. Brain levels of glutamate and an important antioxidant, glutathione, will be measured before and after treatment, using a neuroimaging technique known as magnetic resonance spectroscopy. Cognitive and negative symptoms will also be assessed before, during and after treatment. The investigators hypothesize that glutamate and glutathione will be normalized in patients' brains, and that their negative and cognitive symptoms will be improved, too.
Negative symptoms significantly interfere with daily functioning among individuals with schizophrenia. They are strongly related to functional impairments \[1\] and contribute to the poor community outcomes of Veterans with schizophrenia. Motivational negative symptoms interfere with obtaining and maintaining employment \[2\], forming social relationships\[3\] and living independently \[4\]. Developing treatments to effectively reduce negative symptoms is important to achieve improvements in daily functioning. Recent empirical studies report that psychosocial interventions for negative symptoms can have a moderate to large effect size on community functioning and negative symptom severity. However, the treatments that have been utilized so far are either cognitive-behavioral therapy interventions that require over a year of weekly individual sessions and thus are very resource- and time-intensive, or they are skills-training groups that do not address any of the cognitive and motivational aspects of negative symptoms. Although group treatments are increasingly hailed as the gold standard for schizophrenia, there is currently no group intervention explicitly for motivational negative symptoms and functional deficits. Furthermore, treatment development and clinical trials are increasingly reliant on neurophysiological measures of clinical severity and treatment response and so far there are not identified negative symptom biomarkers. The current CDA proposal will test a group-based treatment based on established motivational enhancement (MI) techniques, augmented with cognitive-behavioral approaches, compared to an active control group treatment, for improving motivational negative symptoms in Veterans with schizophrenia. I will assess the efficacy of MI with measures from two outcome domains: 1) negative symptoms (clinical ratings) and 2) functional outcomes (real-world improvements in social, instrumental, and independent living). I will assess the relationship between these outcomes and neurophysiological biomarkers (pupillometry and electroencephalography (EEG)). Participants will be randomly assigned to the MI treatment or a control treatment for weekly 1-hour sessions for 12 weeks. The assessment battery will be administered at baseline, at completion of treatment, and at 6-month follow-up. The investigators will enroll 60 Veterans with schizophrenia that are low functioning and have high negative symptoms across the 4 years of the study. This proposal is designed to examine group-based MI for reducing negative symptoms and improving functioning in key domains (i.e., interpersonal, instrumental, and independent living skills). Moreover, it will thoroughly investigate biomarkers of negative symptoms with pupillometry and EEG. The development and evaluation of this recovery- oriented group MI treatment for Veterans with disabling negative symptoms will yield results that can inform larger treatment trials and neurophysiological measurement of negative symptoms in Veterans with schizophrenia.
The primary purpose of this study is to determine if the long-term use of SPD489 (40, 80, 100, 120, 140, and 160mg) administered as a daily morning is safe and tolerable.
The primary purpose of this study is to determine whether SPD489 low dose range (40, 80, or 100mg) and high dose range (120, 140, or 160mg) are effective in the treatment of Negative Symptoms.
The primary purpose of this study is to determine whether SPD489 40 mg, 100 mg, and 160 mg are effective and safe in the treatment of Negative Symptoms of Schizophrenia (NSS).
This multi-center, randomized, double blind, parallel-group, placebo-controlled study will evaluate the efficacy and safety of RO4917838 (bitopertin) in patients with persistent, predominant negative symptoms of schizophrenia. Patients, on stable treatment with antipsychotics, will be randomized to receive daily oral doses of RO4917838 or matching placebo for 52 weeks, followed by an optional treatment extension for up to 3 years.
This Phase 3, multi-center, randomized, double blind, parallel-group, placebo-controlled study will evaluate the efficacy and safety of RO4917838 (bitopertin) in participants with persistent, predominant negative symptoms of schizophrenia. Participants, on stable treatment with antipsychotics, will be randomized to receive daily oral doses of RO4917838 or matching placebo for 52 weeks, followed by an optional treatment extension for up to 3 years.
This multi-center, randomized, double-blind, parallel-group, placebo-controlled study will evaluate the efficacy and safety of RO4917838 in participants with persistent, predominant negative symptoms of schizophrenia. Participants, on stable treatment with antipsychotics, will be randomized to receive daily oral doses of RO4917838 or matching placebo for 56 weeks (treatment period 1 of 24 weeks and treatment period 2 of 32 weeks), followed by an optional treatment extension for up to 3 years. After 52 weeks, participants who were originally randomized to an active treatment will be randomly assigned to receive either placebo or continue on the originally assigned study treatment for 4 weeks washout period (Week 52 to Week 56) for the assessment of potential withdrawal effects in a blinded manner using participants staying on active treatment as a control. Participants initially randomized to placebo will remain on placebo. After 56 weeks, participants who were switched to placebo in the washout period will return to their blinded, active treatment arm.
This study is examining the efficacy of PF-03463275 compared to placebo in treating negative symptoms of schizophrenia when added to ongoing antipsychotic treatment in stable outpatients with schizophrenia.
This study will investigate adjunctive pregnenolone for patients with schizophrenia and schizoaffective disorder.
This study will test whether repetitive transcranial magnetic stimulation (rTMS) is helpful in treating negative symptoms and social deficits of schizophrenia. This will be the first rTMS study to assess social function and social cognition. 1. Hypoactivity in the dorsolateral prefrontal cortex (DLPFC) has been implicated in generating the negative symptoms of schizophrenia. Abnormalities in the left inferior parietal lobe (IPL) have also been associated with negative symptoms. We hypothesize that high frequency rTMS applied to the hypoactive left DLPFC or to the left IPL in individuals with schizophrenia will reduce negative symptom severity more than sham (placebo) rTMS as assessed by the Positive and Negative Syndrome Scale (PANSS) negative symptoms subscale. 2. We hypothesize that high frequency rTMS applied to the left DLPFC or to the left IPL in schizophrenia patients will improve social dysfunction more than sham (placebo) rTMS as assessed by the Social Adjustment Scale, the Social Adaptation Self-Evaluation Scale and the Social Functioning Scale.
This is a study of a new medication for the treatment of cognitive impairments (thinking difficulties) and negative symptoms in people with schizophrenia. The new medication is rasagiline. Rasagiline is a drug which has been approved by the Food and Drug Administration for the treatment of Parkinson's disease. It is used to treat cognitive problems.
This study is to determine the efficacy (how well the drug works), safety, and side effects of the study medication compared to placebo in the treatment of the negative symptoms of schizophrenia in adults.
The purpose of this study is to evaluate the effect of AMG 747 on negative symptoms of schizophrenia in patients who are stable on current antipsychotic treatment. After a run-in period on their current antipsychotic treatment, patients will be randomized to one of the four treatment arms as add-on therapy for a treatment duration of up to 3 months.
The purpose of this study is to evaluate the effect of AMG 747 on negative symptoms of schizophrenia in patients who are stable on current antipsychotic treatment. After a run-in period on their current antipsychotic treatment, patients will be randomized to one of the four treatment arms as add-on therapy for a treatment duration of up to 3 months.
Randomized, double-blind clinical trial of tocilizumab vs. placebo as add-on treatment for residual positive, negative, and cognitive symptoms in schizophrenia. The primary study hypothesis is that individuals receiving tocilizumab will show greater improvements in their PANSS total scores than those taking placebo.
The purpose of this study is to test the effect of modafinil on the negative symptoms, such as blunted affect and social withdrawal, of schizophrenic patients and to determine modafinil's effect on excessive daytime sleepiness. A secondary purpose of the study is to examine the effect of modafinil on cognitive functioning of schizophrenic patients.
This study proposes to examine the effect of atomoxetine on quality of life and negative symptoms such as social withdrawal, lack of interest in things, lack of thought content, flat emotions, slowed body movements and lack of drive and motivation in patients with schizophrenia or schizoaffective disorder. This study also examines the safety of using atomoxetine along with the conventional antipsychotic in these patients.