Mass General - Division of Clinical Research

The purpose of this research is to address the challenges of diagnosing and long-term management of epilepsy in participants whose seizures are not well captured by standard electroencephalography (EEG) tests and who cannot use or are not able to use more standard monitoring techniques. This research will compare the Minder System to standard of care in providing reliable seizure data. The Minder System was granted De Novo classification by the U.S. Food and Drug Administration (FDA) and is not investigational. Participants will consent to join the study and be implanted with the Minder device; or consent to join the study and continue with their Standard of Care (SOC) as a control group. Participants chose to be implanted with the Minder device will have the device implanted under their scalp. After implantation, participants will be randomly assigned to a group where their treating physician will have access to the EEG data collected by the Minder System or a group where their treating physician does not have access to the EEG data collected by the Minder System. Participants receiving the Minder System will not know which group they are in (blinded) until the study ends. All participants will continue to be followed by their treating physician and undergo assessments and visits until enough information is available to determine a treatment plan or the 6-month follow-up visit.

Type: Interventional

Start Date: Dec 2025

open study

Primary immune thrombocytopenia (ITP) is a condition where the immune system mistakenly destroys platelets, which are cells that help stop bleeding. This leads to a low number of platelets, making it easier to bruise or bleed. The main aim of this study is to learn whether mezagitamab, when given just under the skin (subcutaneously [SC]), is effective in keeping the platelet count of adults with ITP stable when compared to a placebo. A placebo looks like medicine but doesn't have any active ingredients in it. The participants will be treated with mezagitamab for up to 6 months. During the study, participants will visit their study clinic several times. Participants who complete the TAK-079-3002 study or do not have any response to study treatment by week 16 (according to study criteria) will be given the opportunity to participate in a continuation study to receive open label mezagitamab (if they are eligible and the site is able to open the continuation study).

Type: Interventional

Start Date: Feb 2025

open study

The objective of the Global Paradise® System US Post Approval Study (US GPS) is to evaluate the real-world use of the Paradise Ultrasound Renal Denervation System indicated for patients who are unable to lower their blood pressure with lifestyle changes and medication. This system is comprised of a catheter, cable, balloon, and generator and has received FDA approval in the United States. Information collected in this study will be analyzed to better understand the long-term safety and effectiveness of treatment with the Paradise System for patients with high blood pressure.

Type: Observational [Patient Registry]

Start Date: Jun 2024

open study

The goal of this clinical trial is to determine if FOG-001 is safe and effective in participants with locally advanced or metastatic solid tumors.

Type: Interventional

Start Date: May 2023

open study

The goal of this double-blind randomized controlled trial is to determine how treatment with high intensity statin, low-dose colchicine, and their combination modulates progression and composition of coronary atherosclerosis in individuals with high polygenic risk for coronary artery disease.

Type: Interventional

Start Date: Dec 2023

open study

Language is a signature human cognitive skill, but the precise computations that support language understanding remain unknown. This study aims to combine high-quality human neural data obtained through intracranial recordings with advances in computational modeling of human cognition to shed light on the construction and understanding of speech.

Type: Interventional

Start Date: Apr 2021

open study

The AIM HIGHer Clinical Trial will evaluate the safety and efficacy of Cardiac Contractility Modulation (CCM) therapy in patients with heart failure with LVEF ≥40% and ≤70%.

Type: Interventional

Start Date: Feb 2022

open study

The purpose of this study is to determine the recommended Phase 2 dose(s) (RP2D[s]) of bleximenib in phase 1 Part 1 (Dose Escalation) and to determine the safety and tolerability at RP2D in Phase 1 Part 2 (Dose expansion). The purpose of the Phase 2 part of the study is to evaluate the efficacy of bleximenib at the RP2D.

Type: Interventional

Start Date: May 2021

open study

To establish the safety and effectiveness of the Edwards PASCAL Transcatheter Repair System in patients with symptomatic severe tricuspid regurgitation who have been determined to be at an intermediate or greater estimated risk of mortality with tricuspid valve surgery by the cardiac surgeon with concurrence by the local Heart Team

Type: Interventional

Start Date: Dec 2019

open study

This research study is evaluating a therapy called proton beam radiation therapy (PBRT) as a possible treatment for neuroblastoma. Neuroblastoma most commonly occurs in and around the adrenal glands, which are located at the top of the kidneys. However, it can also occur in other areas where groups of nerve cells exist, such as other areas of the abdomen, neck and near the spine. Conventional radiation therapy with photons is used as standard treatment for many patients with neuroblastic tumors. In this research study, the investigators are looking at another type of radiation called proton radiation which is known to spare surrounding tissues and organs from unnecessary radiation. Proton radiation delivers radiation to the area requiring radiation. This may reduce side effects that patients would normally experience with standard radiation therapy or other means of delivering proton radiation therapy. In this research study, the investigators are evaluating the effectiveness of using proton radiation delivered to reduce side effects associated with radiation treatment. The investigators will also be assessing the late side effects experienced by participants in each treatment group.

Type: Interventional

Start Date: Jun 2014

open study

The goal of this clinical trial is to learn if an artificial intelligence phone application called ASSIST can help patients receiving cancer treatment. The main question[s] it aims to answer are: Is ASSIST feasible for patients (meaning can it be used by patients)? Is ASSIST acceptable to patients (meaning do patients like it)? Researchers will compare the ASSIST phone application to see how it compares to usual clinical care. Participants on the ASSIST arm will use the ASSIST phone application for 12 weeks, and participants in both groups will complete surveys.

Type: Interventional

Start Date: Apr 2026

open study

The goal of this clinical trial is to assess the safety and effects of a crystallized form of lithium, AL001, when compared to commonly used lithium carbonate in individuals diagnosed with bipolar I disorder. The main questions this study aims to answer are: - How safe is AL001 when compared to lithium carbonate? - How is AL001 broken down in the brain and body compared to lithium carbonate? Participants will be asked to: - Take both the study drug (AL001) and lithium carbonate each for a period of 14 days. - Stay overnight at MGH's research unit for two separate 2-week periods. - Participate in two separate 24 hour periods of multiple MRIs and blood draws.

Type: Interventional

Start Date: Apr 2026

open study

In this study, researchers will learn more about the safety of tofersen, also known as Qalsody®. This is a drug available for doctors to prescribe for participant with a certain type of amyotrophic lateral sclerosis, also known as ALS. This type is in participant who have a mutation in the superoxide dismutase 1 gene, also known as SOD-1. This is known as an "observational" study, which collects health information about study participants without changing their medical care. Participants for this study will be found using 2 different groups of study research centers that help provide clinical care for participant with ALS. These groups are in Europe and the United States and are called: - the Precision-ALS programme - the ALS/Motor Neuron Disease (MND) Natural History Consortium (NHC) The main goal of this study is to collect safety information in participants with SOD-1 ALS who were in either of the groups. The main question researchers want to answer in this study is: - What are the characteristics of the participants in this study? - How many participants had serious adverse events (SAEs), including ones that affect the brain, spinal cord, or nerves? An adverse event is a health problem that may or may not be caused by a drug during the study. An adverse event is considered serious when it results in death, is life-threatening, causes lasting problems, or requires hospital care. Researchers will also learn more about: - How many participants develop other health conditions or become pregnant, including how the pregnancy turned out - Why and when participants stopped treatment This study will be done as follows: - Participants will be screened to check if they can join the study. - Data from the participants' regular visits to their clinic will be collected based on which study research center they are in. - Each participant will be in the study until they decide to leave or until death. Currently, the study is planned to last at least 7 years.

Type: Observational [Patient Registry]

Start Date: Jan 2026

open study

This is the first-in-human study of 7MW4911 in US patients, to investigate its prelimary safety and efficacy in patients with gastrointestinal cancers.

Type: Interventional

Start Date: Jan 2026

open study

The ALSTARS trial will be conducted across 20-25 sites in the US and Canada, and will evaluate the safety and efficacy of an investigational treatment called COYA 302 for adults with Amyotrophic Lateral Sclerosis (ALS). COYA 302 is an investigational and proprietary biologic combination therapy with a dual immunomodulatory mechanism of action intended to enhance the anti-inflammatory function of regulatory T cells (Tregs) and suppress the inflammation produced by activated monocytes and macrophages. It is comprised of low dose interleukin-2 (LD IL-2) and DRL_AB (a biosimilar candidate for abatacept). Participants will be randomly assigned to receive one of 2 regimens of COYA 302 or placebo (an inactive substance) for 24-weeks in the double-blind (DB) period. Those who complete this part of the study may be eligible to receive one of the two regimens of COYA 302 for an additional 24 weeks in a blinded active extension phase (EXT). The study will assess changes in disease progression using established ALS clinical outcome measures, including the ALS Functional Rating Scale-Revised (ALSFRS-R), neurofilament (NfL), maximal inspiratory pressure (MIP), slow vital capacity (SVC), and neurological assessments. Additional objectives include evaluation of biomarkers and safety through routine clinical assessments and adverse event monitoring.

Type: Interventional

Start Date: Oct 2025

open study

This research is being done to study a possible treatment for refractory pain due to small fiber neuropathy (SFN). ST-503 is intended to deliver a modified copy of the gene which will ideally repress Nav1.7 tissue-related pain signals reaching the brain, which should reduce the refractory pain due to small fiber neuropathy (SFN).

Type: Interventional

Start Date: Dec 2025

open study

This study aims to evaluate the acceptability, safety, and preliminary efficacy of a smartphone-delivered intervention called Therapeutic Evaluative Conditioning for Suicide (TEC-S) in reducing suicidal thoughts and behaviors (STB) among adults with recent and frequent suicide ideation.

Type: Interventional

Start Date: Jan 2026

open study

Primary immune thrombocytopenia (ITP) is a condition where the immune system mistakenly destroys platelets, which are cells that help stop bleeding. This leads to a lower number of platelets, making it easier to bruise or bleed. The main aim of this study is to check how safe mezagitamab is and how well it is tolerated by adults with chronic primary ITP, if given over a longer time. Other aims are to learn how effective treatment with mezagitamab is and how the body processes it (called pharmacokinetics or PK) over a longer time. Participants of the following previous mezagitamab studies will be invited to join this continuation study: TAK-079-3002 and TAK-079-1004. In this continuation study, participants will receive mezagitamab when certain protocol criteria are met. During the study, participants will visit their study clinic several times.

Type: Interventional

Start Date: Aug 2025

open study

This study is open to adults and adolescents aged 12 to under 18 with bronchiectasis. People can participate in this study if they produce sputum and have had flare-ups (also called exacerbations). The purpose of this study is to find out whether a medicine called BI 1291583 helps people with bronchiectasis. Participants are put into 2 groups randomly, which means by chance. One group takes BI 1291583 tablets and the other group takes placebo tablets. A placebo tablet looks like the BI 1291583 tablet but does not contain any medicine. Participants take 1 tablet once a day for up to 1 year and 6 months. Participants are in the study for up to 1 year and 8 months. During this time, participants visit the study site up to 10 times and get about 13 phone calls from the site staff. Participants regularly complete a diary on a smartphone about their bronchiectasis symptoms and study doctors regularly check for any changes. The study doctors document when participants experience flare-ups. The number of flare-ups is compared between the participants who receive BI 1291583 and those who receive the placebo. The study doctors also regularly check participants' health and take note of any unwanted effects.

Type: Interventional

Start Date: Jun 2025

open study

The investigators aim to conduct an open pilot trial to determine the initial feasibility of a self-directed writing-based intervention in individuals with chronic musculoskeletal pain and elevated pain catastrophizing. The investigators will assess the feasibility of recruitment, acceptability of the treatment, credibility and participant satisfaction, treatment adherence, and feasibility of assessments following pre-specified benchmarks.

Type: Interventional

Start Date: Oct 2025

open study

The purpose of this study is to examine the feasibility, acceptability, preliminary effects, and candidate gut-brain mechanisms of an optimized positive psychology (PP) intervention for patients with irritable bowel syndrome (IBS), entitled "WISH," compared to an educational control intervention.

Type: Interventional

Start Date: Oct 2025

open study

The primary objective of this study is to determine the recommended Phase 2 doses (RP2D(s)) and maximum tolerated dose (MTD) of PYX-201 in combination with pembrolizumab for participants with advanced solid tumors.

Type: Interventional

Start Date: Apr 2025

open study

The researchers are doing this study to find out whether the combination of ruxolitinib and ulixertinib is a safe and effective treatment for people with myelofibrosis. The researchers will test different doses of ulixertinib to find the highest dose that causes few or mild side effects in participants when given in combination with ruxolitinib.

Type: Interventional

Start Date: Jan 2025

open study

This clinical trial is a prospective, multicenter, open-label, randomized, actively controlled, parallel-group Phase 3 clinical trial to evaluate the efficacy, safety and tolerability of treatment with IMA203 administered at the recommended phase 2 dose versus investigator's choice of treatment in patients with previously treated, unresectable or metastatic cutaneous melanoma. For patients interested in additional information on how to participate, please follow this link: https://mytomorrows.com/trials/suprame/en-us/

Type: Interventional

Start Date: Jan 2025

open study

Mg OSTEOCRETE is a bone substitute used to fill a defect in bone caused by excision of a tumor, orthopaedic hardware that has become loosened, or a trauma-related condition. The aim of this study is to determine the amount of time it takes for bone to heal after treatment with Mg OSTEOCRETE, and to better understand the efficacy of this treatment through clinical and patient-reported outcomes.

Type: Observational

Start Date: Mar 2025

open study