Mass General - Division of Clinical Research

The purpose of this study is to investigate how immunosuppression treatment affects measurements of active collagen deposition using [68Ga]CBP8 positron emission tomography (PET) and tissue injury using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in individuals with non-idiopathic pulmonary fibrosis interstitial lung disease (non-IPF ILD).

Type: Interventional

Start Date: Apr 2026

open study

This open-label extension study will provide post-trial access to pelacarsen (TQJ230) to participants who have successfully completed the double-blind parent study (CTQJ230A12301).

Type: Interventional

Start Date: May 2026

open study

The study is a prospective, single-arm, pre-market clinical study and will enroll up to 300 subjects at up to 26 sites in the United States (US) for analysis of primary objectives. No single site may contribute more than 15% of the enrollments.

Type: Interventional

Start Date: Jan 2026

open study

This early phase, open label, single arm clinical trial will determine the intraindividual safety, tolerability and effects of NPC1 (parthenolide and ipriflavone) on blood-based biomarkers of Alzheimer's disease (AD) pathology among adults with subjective cognitive decline, mild cognitive impairment, or Alzheimer's disease and objective indicators of seeding AD pathology

Type: Interventional

Start Date: Apr 2026

open study

The purpose of this study is to evaluate the efficacy, safety, and pharmacokinetics (PK) of prasinezumab compared with placebo in participants with early-stage Parkinson's disease (PD) on stable symptomatic monotherapy with levodopa.

Type: Interventional

Start Date: Nov 2025

open study

The purpose of this clinical trial is to evaluate efficacy and safety of tirabrutinib alone compared with rituximab and temozolomide (R-TMZ) combination therapy in participants with Relapsed/Refractory Primary Central Nervous System Lymphoma (PCNSL).

Type: Interventional

Start Date: May 2026

open study

This study will test the hypotheses that adolescent with repetitive negative thinking who at at-risk for serious mental illness will show greater default mode network (DMN) connectivity than healthy controls, at-risk adolescents will show greater changes in DMN connectivity than healthy controls, and that a longer session of mindfulness based neurofeedback will lead to greater reduction in DMN connectivity. To do so, 50 adolescents with elevated repetitive negative thinking and 50 matched healthy control participants will be enrolled into a double-blind randomized clinical trial of a session of mindfulness training with either active mindfulness-basde neurofeedback or sham mindfulness-based neurofeedback.

Type: Interventional

Start Date: Nov 2025

open study

Colorectal cancer (CRC) is the third most common type of cancer diagnosed worldwide. The purpose of this study is to assess change in disease activity when telisotuzumab adizutecan is given alone compared to standard of care (SOC) given alone. Telisotuzumab adizutecan is an investigational drug being developed for the treatment of CRC. This study will be divided into two groups called treatment arms. In arm 1 participants will receive telisotuzumab adizutecan alone. In arm 2 participants will receive SOC alone. Approximately 140 adult participants with CRC will be enrolled in the study in 45 sites worldwide. In arm 1, participants will receive intravenous (IV) doses of telisotuzumab adizutecan alone. In arm 2 Participants will receive SOC alone. The study will run for a duration of approximately 51 months. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at an approved institution (hospital or clinic). The effect of the treatment will be frequently checked by medical assessments, blood tests, questionnaires and side effects.

Type: Interventional

Start Date: Sep 2025

open study

AGENT DCB STANCE is a prospective, multicenter, open-label, 1:1 randomized controlled study designed to assess the safety and effectiveness of a treatment strategy with the AGENT Drug-Coated Balloon compared to standard of care percutaneous coronary intervention (PCI) treatment with drug eluting stent (DES) and/or balloon angioplasty in patients with de novo coronary lesions. Subjects must have a de novo target lesion located in a native coronary artery.

Type: Interventional

Start Date: Aug 2025

open study

The goal of this clinical trial is to learn the formation and recovery rate of methemoglobin (MetHb) in severely sick patients with pneumonia who receive high doses of inhaled nitric oxide (iNO) therapy at 250 parts per million (ppm), not exceeding 300 ppm. Meanwhile, the benefits of the therapy to treat severely sick patients with pneumonia will be explored. Patients who are 18 years or older, newly diagnosed with pneumonia, and severely sick with requirement of a breathing machine could be included. The main questions it aims to answer are: How does methemoglobin change through the iNO treatment? Does iNO therapy increase the number of patients recovering from pneumonia? Researchers will compare iNO treatment to placebo, which means using the same device as the treatment group without delivering the study drug. Participants will: - Receive iNO treatment starting at 250 ppm, not exceeding 300 ppm, 40 min, every 6 hours, from day 1 to day 5 - Be followed up for 60 days

Type: Interventional

Start Date: Feb 2026

open study

In this study, researchers will learn more about the use of felzartamab in participants with immunoglobulin A nephropathy (IgAN). IgAN is a kidney disease caused by the buildup of an antibody called IgA in the kidneys over time. In people with IgAN, abnormal IgA and other antibodies form clusters that build up in the small filters of the kidneys, which leads to inflammation and damage. Felzartamab is designed to target certain immune cells that produce these abnormal antibodies. This study will focus on participants who have protein in their urine (proteinuria) as a result of damaged kidneys. The main goal of the study is to learn about the effect felzartamab has on proteinuria. The main question that researchers want to answer is: • How much does the amount of protein in the urine change from the start of the study to Week 36? Researchers will learn about the effect felzartamab has on the kidneys' ability to filter blood. They will also learn more about the safety of felzartamab and how it is processed by the body. The study will be done as follows: - Participants will be screened to check if they can join the study. - Participants will be randomized to receive either felzartamab or a placebo. A placebo looks like the study drug but contains no real medicine. - Neither the researchers nor the participants will know what the participants will receive. - Participants will receive felzartamab or placebo as intravenous (IV) infusions. The treatment period will last 24 weeks. - Afterwards, participants will enter a follow-up period which will last 80 weeks. - In total, participants will have 17 study visits. Participants will stay in the study for about 2 years.

Type: Interventional

Start Date: May 2025

open study

The study consists of prospective enrollment of healthy participants and patients with epilepsy, as well as analysis of an existing data set. Healthy participants will be studied with fMRI, eye metrics and behavioral testing at Yale. Patients will be studied with thalamic recording and stimulation, eye metrics and behavioral testing.

Type: Interventional

Start Date: Oct 2025

open study

The goal of this clinical trial is to evaluate whether an AI tool that alerts providers to patients at high 6-year risk of lung cancer based on their chest x-ray images will improve lung cancer screening CT participation. The main question it aims to answer is: Does the AI tool improve lung cancer screening CT participation at 6 months after the baseline outpatient visit? The intervention is an alert to the provider to discuss lung cancer screening CT eligibility, for patients considered at high risk of lung cancer based on CXR-LC AI tool. Intervention and non-intervention arms will be compared to determine if lung cancer screening CT participation increases. Individuals who are considered high-risk by the tool, but who do not meet the Medicare/USPSTF pack-year or quit-date lung screening eligibility criteria may be offered research lung screening CT.

Type: Interventional

Start Date: May 2025

open study

The purpose of the study is to evaluate the efficacy, safety, and tolerability of zorevunersen in Patients with Dravet syndrome.

Type: Interventional

Start Date: Jun 2025

open study

The purpose of this study is to assess detection rate of flotufolastat F 18 positron emission tomography (PET) for low prostate specific antigen (PSA) recurrence of prostate cancer (PC) following radical prostatectomy.

Type: Observational

Start Date: May 2025

open study

This study is a randomized, open-label, active comparator-controlled, dose-ranging trial of the efficacy and safety of IV artesunate in combination with IV GCV or oral VGCV and SOC treatment compared to GCV or VGCV monotherapy and SOC treatment in SOT recipients with clinically significant CMV infection.

Type: Interventional

Start Date: Aug 2025

open study

This (DEEp OCEAN Study) is a double-blind, randomized, placebo-controlled, multicenter study to investigate the efficacy, safety, and tolerability of LP352 in the treatment of seizures in children and adults with DEE. The study consists of 3 main phases: Screening, Titration period, Maintenance period, followed by a Taper period and Follow-Up. The total duration of the study will be approximately 24 months.

Type: Interventional

Start Date: Nov 2024

open study

The purpose of this study is to assess Tacrolimus/Methotrexate/Ruxolitinib versus Post-Transplant Cyclophosphamide/Tacrolimus/Mycophenolate Mofetil in Non-Myeloablative/Reduced Intensity Conditioning Allogeneic Peripheral Blood Stem Cell Transplantation

Type: Interventional

Start Date: Apr 2025

open study

Transthyretin amyloidosis (ATTR) is a disease where the normally occurring transthyretin (TTR) protein falls apart and forms amyloid, a sticky plaque-like substance that accumulates in different organs in the body and can cause damage to the organ. There are two ways that the TTR protein can fall apart. One way occurs as a person ages, where the normal TTR protein can fall apart and form amyloid that may no longer be sufficiently cleared by the body. This type of ATTR is known as wild-type ATTR (ATTRwt). The other way occurs when a person inherits a defective TTR gene that causes the TTR protein to spontaneously fall apart. This form of the disease is known as variant ATTR (ATTRv) and can be detected in adults by a genetic test of their TTR gene before they age. Amyloid build-up in the heart causes the heart wall to become thick and stiff and can result in heart failure and even death. Accumulation of TTR amyloid in the heart is known as transthyretin amyloid cardiomyopathy or ATTR-CM. Amyloid can also deposit in the nerve tissues leading to nerve problems. Accumulation of TTR in the nerves is known as transthyretin amyloid polyneuropathy or ATTR-PN. Acoramidis is an experimental drug designed to bind tightly to TTR in the blood and stabilize its structure, so it does not form the harmful amyloid plaques that can cause damage to organs. This study is intended to determine if treatment with acoramidis in participants with ATTRv who have not yet developed any symptoms of disease can prevent or delay the development of ATTR-CM or ATTR-PN disease. If adults with an inherited defective TTR gene are treated early before any of the symptoms of disease have developed, it may be possible to delay the onset or prevent the disease entirely.

Type: Interventional

Start Date: May 2025

open study

People with HIV experience earlier impairments in physical function compared to people in the general population. They also exhibit an earlier presentation and more rapid development of frailty, a multisystemic syndrome of aging characterized by reduced activity, fatigue, slowness, weakness, and weight loss. While exercise can improve physical function in people with HIV, it is less effective in doing so than in the general population and is difficult to sustain in the long-term. The goal of this clinical trial is to learn whether the medication tesamorelin will improve physical function and muscle health in adults with HIV when combined with exercise. Tesamorelin is a growth hormone-releasing hormone analogue that is FDA-approved to treat abdominal fat accumulation in people with HIV. While tesamorelin has also been shown to increase muscle mass and improve measures of muscle health, its effects on physical performance and muscle strength have not yet been evaluated. During a 24-week intervention phase, half of participants will be randomly assigned to receive tesamorelin and half of participants will be randomly assigned to receive placebo (a look-alike substance that contains no drug). All participants also will engage in a home-based exercise intervention supervised by an exercise coach. During a subsequent 24-week extension phase, individuals will be monitored off study drug and supervised exercise, and be encouraged to continue to exercise independently. The investigators will investigate effects of tesamorelin on physical function, muscle mass and quality, quality of life, and exercise adherence and self-efficacy. They also will evaluate whether effects of tesamorelin are maintained following treatment cessation. This study may identify an important strategy to improve how individuals aging with HIV function and feel with potential applications to other patient populations.

Type: Interventional

Start Date: Jul 2025

open study

The purpose of this protocol is to evaluate the efficacy and safety of tulisokibart in participants with moderately to severely active Crohn's disease. Study 1's primary hypotheses are that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (<150, US/FDA) or per stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week 52 (US/FDA and EU/EMA), and that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (<150, US/FDA) or per stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week 12 (US/FDA and EU/EMA). Study 2's primary hypothesis is that at least 1 tulisokibart dose level is superior to placebo in the proportion of participants achieving clinical remission per Crohn's Disease Activity Index score (<150, US/FDA) or stool frequency and abdominal pain score (EU/EMA) and in the proportion of participants achieving endoscopic response at Week 12 (US/FDA and EU/EMA).

Type: Interventional

Start Date: Jun 2024

open study

AJX-101 is a first-in-human (FIH), phase 1, non-randomized, multi-center, open-label clinical trial designed to investigate the safety, tolerability, pharmacokinetics (PK), clinical activity and changes in biomarkers of an orally administered type II JAK2 inhibitor, AJ1-11095, in subjects with primary or secondary myelofibrosis previously treated with at least one type I JAK2 inhibitor.

Type: Interventional

Start Date: Oct 2024

open study

The purpose of the study is to evaluate efficacy of riliprubart compared to IVIg in adult participants with CIDP who are receiving maintenance treatment with IVIg. The study duration will be for a maximum of 109 weeks including screening, treatment phases, and follow-up.

Type: Interventional

Start Date: Aug 2024

open study

The goal of this study is to evaluate if using evidence-based, standard ingredient and target codes from the Rehabilitation Treatment Specification System - Voice Therapy (RTSS-Voice) in standard of care voice therapy documentation can improve outcomes for patients with muscle tension dysphonia (MTD). The main question it aims to answer is: Since the RTSS-Voice will help clinicians think about their treatment more specifically and in relation to nine evidence-based therapies, will its adoption be associated with improved outcomes? Clinicians across five voice centers will be asked to use the RTSS-Voice to document their voice therapy sessions for patients with MTD. Researchers will compare changes in outcomes between two groups of patients: those treated during the clinician's first year using the RTSS-Voice versus those treated during the clinician's second year using the RTSS-Voice.

Type: Interventional

Start Date: Feb 2026

open study

This research study is for people who have been waiting for a kidney transplant for at least one year, and who have a cPRA of 99.5% or higher. Having a cPRA of 99.5% or higher means that your immune system would reject 99.5% of kidneys available for transplant. The study will test whether new products called Chimeric Antigen Receptor T Cells (CAR T Cells), when given with chemotherapy, is safe and will reduce cPRA. The main study will last up to 2 years: Participants will have up to 30 clinic or hospital visits over a one-year period. If a transplant takes place, there will be 9 more visits after transplant. Long term follow up is required by the Food and Drug Administration (FDA) for 15 years after receiving CAR T cell. The primary objective is to evaluate the safety and feasibility of administering CART BCMA + huCART-19 following lymphodepletion, including determination of optimal tolerated regimen (OTR) and/or recommended phase 2 regimen, according to the incidence of dose limiting toxicity (DLT) in highly sensitized patients awaiting kidney transplant.

Type: Interventional

Start Date: May 2024

open study