Mass General - Division of Clinical Research

This multi-center randomized controlled trial (RCT) will compare efficacy and safety endpoints using the insulin-only configuration of the iLet Bionic Pancreas System (BP) versus a control group using their usual care insulin delivery method and continuous glucose monitoring (CGM) during a 13-week study period in individuals ≥14 years old with cystic fibrosis-related diabetes (CFRD). After 13 weeks, participants will continue in a 13-week Extension Phase in which the BP group will continue to use the BP system and the Usual Care group will initiate use of the BP system.

Type: Interventional

Start Date: Sep 2024

open study

The goal of this research study is to determine the best dose of CARv3-TEAM-E T Cells for treating participants with glioblastoma. The name of the treatment intervention used in this research study is: -CARv3-TEAM-E T Cells (or Autologous T lymphocytes).

Type: Interventional

Start Date: Mar 2023

open study

This is a prospective, multicenter, open-label, randomized trial comparing mitral valve (MV) transcatheter edge-to-edge repair (TEER) to surgical repair (1:1 ratio) in patients with primary, degenerative mitral regurgitation (MR). The trial will be conducted in the U.S., Canada, Germany, Spain, and the United Kingdom, and is designed as a strategy trial. Thus, all devices legally marketed for TEER of primary degenerative MR in a particular country are eligible to be used in this trial.

Type: Interventional

Start Date: Feb 2022

open study

The goal of this study is to investigate the efficacy of [68Ga]CBP8 to detect collagen deposition in radiation induced tissue injury.

Type: Interventional

Start Date: Jul 2020

open study

The purpose of this study is to assess the effects of tDCS in combination with TUS for the treatment of pain in subjects with Carpal Tunnel Syndrome. The investigators hypothesize that there will be a decrease in pain levels with active stimulation, when compared to sham stimulation.

Type: Interventional

Start Date: Apr 2021

open study

This trial is designed to evaluate the safety and effectiveness of the novel OCS Solution and OCS Functional Enhancer (OFE) to support FDA approval in both DBD and DCD heart transplantation. In addition, this trial will evaluate the performance of the novel OCS Solution and OFE compared to Static Cold Storage (SCS) in DBD heart transplantation to potentially demonstrate superiority.

Type: Interventional

Start Date: Jan 2026

open study

This is a Phase 2 dose-finding study in adult participants with symptomatic HFpEF.

Type: Interventional

Start Date: Feb 2025

open study

This study is researching an experimental CAR T cell therapy called 27T51, referred to as study drug. The study drug is a MUC16 targeting immune cell therapy focused on adult female participants with recurrent or difficult to treat epithelial ovarian, primary peritoneal or fallopian tube cancer. This study has two (2) major parts: Phase 1a Dose Escalation and Phase 1b Dose Expansion. The aim of the dose escalation part will be to test the safety of 27T51 in a small number of participants to find the highest dose given to humans without unacceptable side effects. The aim of the dose expansion part will be to test 27T51 at the established dose level(s) from the dose escalation part and may include other medications given in combination with 27T51. Information collected from this study will help researchers understand more fully whether this immune cell therapy, also known as CAR T cell therapy, can be safely used to treat solid tumors such as ovarian cancer.

Type: Interventional

Start Date: Aug 2024

open study

The primary objective of this study is to evaluate the efficacy of two different doses of Atenativ, versus placebo, in restoring and maintaining heparin responsiveness in adult patients undergoing cardiac surgery necessitating cardiopulmonary bypass (CPB)

Type: Interventional

Start Date: Aug 2024

open study

The aim of this project is to assess the effectiveness of the IlluminOss pelvic implants in patients with pelvic metastatic disease presenting with pain, risk of pathologic fracture, non-displaced or minimally displaced pathologic fracture of the pelvis, and geriatric patients with pelvic fragility fractures. Results from this study will be used to confirm preliminary clinically and possibly statistically significant reductions in pain and improvements in function among these patients.

Type: Observational

Start Date: Nov 2021

open study

A prospective multicenter study enrolling high surgical risk patients with severe mitral annular calcification (MAC) and symptomatic mitral valve dysfunction (severe stenosis, ≥ moderate to severe regurgitation, or mixed ≥ moderate stenosis and ≥ regurgitation). There are 2 Arms in this study: 1) "Transseptal (TS) Valve-in-MAC" (ViMAC) Arm, and 2) Natural History of Disease Registry (NHDR) for patients treated with medical treatment only (which includes patients who meet inclusion criteria but can't be treated with transeptal ViMAC due to the presence of anatomical exclusion criteria or other exclusion criteria) and have not had other procedures that may impact outcomes (i.e., alcohol septal ablation or radiofrequency ablation). The study also includes a Registry of Permanently Unassigned" for subjects who undergo preemptive septal ablation procedures (alcohol or radiofrequency) in anticipation of continuing onto ViMAC arm, but are not accepted in the ViMAC Study arm or the patient chooses not to undergo ViMAC procedure.

Type: Interventional

Start Date: Mar 2021

open study

The primary purpose of this study is to evaluate the safety and tolerability, determine the maximally tolerated dose (MTD) and/or recommended Phase 2 dose(s) (RP2D) of PT0511 in adult participants with solid tumors as monotherapy and in combination with cetuximab in participants with colorectal cancer (CRC).

Type: Interventional

Start Date: Nov 2025

open study

The goal of this study is to test mosunetuzumab given alone or in combination with a Bruton tyrosine kinase inhibitor (BTKi, such as ibrutinib, acalabrutinib, zanubrutinib, or pirtobrutinib) in participants with CLL (chronic lymphocytic leukemia) or small lymphocytic lymphoma (SLL). The names of the study drugs in this research study are: - Mosunetuzumab - BTK inhibitor: Ibrutinib, acalabrutinib, zanubrutinib, or pirtobrutinib

Type: Interventional

Start Date: Nov 2025

open study

The primary objectives of this study are twofold: 1) to detect and determine the level of symptoms, functional disability, and changes in quality of life that breast cancer patients experience from changes in their arms during and after treatment for breast cancer by collecting patient reported outcome measures, objective measurements, and clinical information in a prospectively maintained database and 2) to improve breast cancer-related lymphedema outcomes by early detection using objective measurements and symptoms assessments and assess these outcomes by maintaining the data in a database in order to contribute to the literature. The secondary aim of this study is to assess extracellular fluid content in the upper extremity, breast, and/or trunk of patients treated for breast cancer before, during, and after treatment in order to better understand the role of bioimpedance spectroscopy in lymphedema screening.

Type: Observational

Start Date: Aug 2009

open study

The proposed study is a two-arm randomized clinical trial designed to assess the effects of the StrokeWear system on clinical outcomes over a period of 6-months in subacute stroke survivors. The Intervention group will use StrokeWear system in combination to a motor and behavioral home intervention whereas the Control group will follow usual care which consists of a home-exercise plan (HEP).

Type: Interventional

Start Date: Aug 2025

open study

Many people living with metastatic breast cancer face challenging symptoms and frequent medical visits. At the same time, conversations about personal goals, values, and preferences for care may not always happen as early or as often as patients and families would like. This multi-site study will test the effectiveness of a five-session palliative care program, designed specifically for people with metastatic breast cancer and their caregivers, to strengthen communication with clinicians about what matters most in their care. The study aims to inform how palliative care services can be delivered in a more timely, personalized, and scalable way for people living with advanced cancers who have long disease trajectories, such as metastatic breast cancer.

Type: Interventional

Start Date: Oct 2025

open study

The purpose of this study is to determine the feasibility of a prehabilitation program for participants diagnosed with rectal cancer undergoing neoadjuvant chemotherapy and/or radiation, followed by surgical resection. The names of the groups in this research study are: - Group A: Prehabilitation program - Group B: Usual Care

Type: Interventional

Start Date: Dec 2024

open study

This research study is evaluating to examine the efficacy of a novel a self-administered digital application (DREAMLAND) for improving patients' long-term quality of life and psychological outcomes for patients with acute myeloid leukemia undergoing intensive chemotherapy.

Type: Interventional

Start Date: Oct 2024

open study

The goal of this pilot clinical trial is to test efgartigimod alfa against placebo in adults with first-time optic neuritis (optic nerve inflammation). The main questions it aims to answer are: - Is it feasible to use efgartigimod alfa for optic neuritis? - Is it feasible to run a larger trial testing efgartigimod alfa in optic neuritis? - Does efgartigimod alfa work better than placebo in improving how quickly and how much vision returns? Participants will: - have their vision and blood tested - be asked questions about their vision - will receive standard of care treatment with steroids regardless of whether they are receiving efgartigimod alfa or not - will have periodic visits over 6 months

Type: Interventional

Start Date: Aug 2025

open study

The goal of this project is to conduct a randomized, hybrid type 1 effectiveness-implementation trial (N=200) to evaluate the effectiveness and implementation of a 10-week mind-body and walking program (GetActive+) vs treatment as usual (TAU). The investigators will test for improvements in self-reported, performance-based (i.e., six-minute walk test), and objective (i.e., step-count) physical function, emotional function, as well as feasibility, acceptability and implementation markers. Participants will complete measures at baseline (0 weeks), post-intervention (1 week after intervention completion), and 6-month follow-up. This study will receive support from and inclusion in the HEAL Initiative (https://heal.nih.gov/).

Type: Interventional

Start Date: Oct 2024

open study

The National Liver Cancer Screening Trial is an adaptive randomized phase IV Trial comparing ultrasound-based versus biomarker-based screening in 5500 patients with cirrhosis from any etiology or patients with chronic hepatitis B infection. Eligible patients will be randomized in a 1:1 fashion to Arm A using semi-annual ultrasound and AFP-based screening or Arm B using semi-annual screening using GALAD alone. Randomization will be stratified by sex, enrolling site, Child Pugh class (A vs. B), and HCC etiology (viral vs. non-viral). Patients will be recruited from 15 sites (mix of tertiary care and large community health systems) over a 3-year period, and the primary endpoint of the phase IV trial, reduction in late-stage HCC, will be assessed after 5.5 years.

Type: Interventional

Start Date: Dec 2023

open study

Phase I of this research study will assess what doses of Sacituzumab Govitecan and Enfortumab Vedotin can be safely combined in the treatment of metastatic urothelial carcinoma (mUC). In Phase II of the study, patients in one of the two cohorts will receive Sacituzumab Govitecan, Enfortumab Vedotin, and Pembrolizumab to assess the efficacy of this drug combination. The names of the study drugs in these investigational combinations are: - Enfortumab Vedotin - Sacituzumab Govitecan - Pembrolizumab

Type: Interventional

Start Date: May 2021

open study

This is a clinical trial to evaluate the use of peritumoral injection of near-infrared dye indocyanine green to identify lung lesions and sentinel lymph nodes. The primary purpose is to determine if the use of ICG injected via navigational bronchoscopy, CT-guided or transthoracic allows us to identify the first lymph node that drains from the tumor, and thus would be the most likely site for metastatic disease, and remove it for analysis to improve the ability to detect tumor in this node and to remove this additional site that potentially contains tumor cells. Using this intraoperative imaging technique, we aim to improve the identification of lung nodules for resection and the intraoperative identification of sentinel lymph nodes in the event that a lymphadenectomy is performed.

Type: Interventional

Start Date: Jan 2015

open study

We have developed novel Brillouin microscopy and we are testing its potential for keratoconus and ectasia diagnostics. We plan to perform axial scans of the cornea in human volunteers in order to compare biomechanical properties of Keratoconus vs. Normal corneas and compare biomechanical properties of post-LASIK ectasia vs. normal corneas.

Type: Observational

Start Date: Jun 2013

open study

The goal of this observational study is to measure shear wave velocity (SWV) in patients with non-reduced left ventricular ejection fraction (LVEF) heart failure and left ventricular hypertrophy, with or without transthyretin amyloidosis with cardiomyopathy (ATTR-CM), and in control subjects without heart failure or cardiomyopathy. The main question it aims to answer is: • Can SWV be used to measure myocardial and liver stiffness in the study's target populations? Researchers will compare patients with ATTR-CM, patients without ATTR-CM, and a control group to determine the distributions of SWV in each population. Participants will: - Have a standard cardiology assessment, including a physical exam, blood work, and an echocardiogram. - Undergo an investigational assessment with the eMyosound LYRA device to measure SWV in their myocardium and liver. - Have the investigational assessment repeated by a second observer to assess measurement reliability.

Type: Observational

Start Date: Sep 2025

open study