Mass General - Division of Clinical Research

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

To assess the safety and effectiveness of the ASG device in the treatment of de novo Type A aortic dissections.

Type: Interventional

Start Date: Sep 2025

open study

The purpose of this study is to evaluate the efficacy and safety of divarasib and pembrolizumab compared with pembrolizumab and pemetrexed and carboplatin or cisplatin, for the first-line treatment of adult participants with KRAS G12C-mutated, advanced or metastatic non squamous non-small cell lung cancer (NSCLC).

Type: Interventional

Start Date: Oct 2025

open study

This study is researching an experimental drug called ubamatamab, also referred to as "study drug". The study is focused on patients who have advanced ovarian cancer. The aim of the study is to see how safe, tolerable, and effective the study drug is on its own and in combination with other anti-cancer drugs (bevacizumab, cemiplimab, fianlimab and a standard chemotherapy drug, pegylated liposomal doxorubicin [PLD]), referred to as "combination drugs'. The study is looking at several other research questions, including: - What side effects may happen from taking the study drug and its experimental combinations - How much study drug and fianlimab is in the blood at different times - Whether the body makes antibodies against the study drug (which could make the drug less effective or could lead to side effects) and its combinations

Type: Interventional

Start Date: May 2025

open study

The purpose of this study is to evaluate the safety, tolerability, dosimetry and preliminary efficacy of [177Lu]Lu-NNS309 and the safety and imaging properties of [68Ga]Ga-NNS309 in patients aged ≥ 18 years with locally advanced or metastatic pancreatic ductal adenocarcinoma (PDAC), non-small cell lung cancer (NSCLC), HR+/HER2- ductal and lobular breast cancer (BC), triple negative breast cancer (TNBC) and colorectal cancer (CRC).

Type: Interventional

Start Date: Oct 2024

open study

This is a pragmatic phase III, randomized, blinded, double placebo-controlled, three-arm trial of elderly patients following cardiac surgery to assess the relationship between nighttime intravenous (IV) and sublingual dexmedetomidine on postoperative delirium and functional outcomes after surgery.

Type: Interventional

Start Date: Jan 2025

open study

The main purpose of this study is to determine the safety, tolerability (how the body reacts to the drug[s]) and effectiveness (ability to treat the cancer) of REGN5678 (Nezastomig) alone, or in combination with cemiplimab. The study has 2 parts. The goal of Part 1 (dose escalation) is to determine a safe dose(s) of REGN5678 when it is given alone or in combination with cemiplimab. The goal of Part 2 (dose expansion) is to use the REGN5678 drug dose(s) found in Part 1 to see how well REGN5678 alone or in combination with cemiplimab works to shrink tumors. This study is looking at several other research questions, including: 1. Side effects that may be experienced by taking REGN5678 alone or in combination with cemiplimab 2. How REGN5678 alone or in combination with cemiplimab works in the body 3. How much REGN5678 and/or cemiplimab are present in the blood 4. To see if REGN5678 alone or in combination with cemiplimab works to reduce the size of the tumor by helping the immune system destroy the tumor

Type: Interventional

Start Date: Aug 2019

open study

The hypothesis of this research protocol is that the investigators will be able to redesign the manner in which upper limb amputations are performed so as to enable volitional control of next generation prosthetic devices and restore sensation and proprioception to the amputated limb. The investigators will test this hypothesis by performing modified above elbow or below elbow amputations in ten intervention patients, and compare their outcomes to ten control patients who have undergone tradition amputations at similar levels. The specific aims of the project are: 1. To define a standardized approach to the performance of a novel operative procedure for both below elbow (BEA) and above elbow amputations (AEA) 2. To measure the degree of volitional motor activation and excursion achievable in the residual limb constructs, and to determine the optimal configuration and design of such constructs 3. To describe the extent of proprioceptive feedback achievable through the employment of these modified surgical techniques 4. To validate the functional and somatosensory superiority of the proposed amputation technique over standard approaches to BEA and AEA 5. To develop a modified acute postoperative rehabilitation strategy suited to this new surgical approach This will be a phase I/pilot clinical trial to be performed over a three-year period as a collaborative initiative involving Brigham & Women's Hospital/Brigham & Women's Faulkner Hospital (BWH/BWFH), Walter Reed National Military Medical Center (WRNMMC), and the Massachusetts Institute of Technology (MIT). The investigators will plan to perform 6 of the 10 amputations at BWH/BWFH, and 4 of the amputations at WRNMMC.

Type: Interventional

Start Date: May 2019

open study

This phase III trial studies the side effects of inotuzumab ozogamicin and how well it works when given with frontline chemotherapy in treating patients with newly diagnosed B acute lymphoblastic leukemia. Inotuzumab ozogamicin is a monoclonal antibody, called inotuzumab, linked to a chemotherapy drug called ozogamicin. Inotuzumab is a form of targeted therapy because it attaches to specific molecules (receptors) on the surface of cancer cells, known as CD22 receptors, and delivers ozogamicin to kill them. Chemotherapy drugs, such as [intervention], work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving inotuzumab ozogamicin with chemotherapy may work better in treating young adults with B acute lymphoblastic leukemia.

Type: Interventional

Start Date: Sep 2017

open study

The purpose of this study is to find risk factors for hemorrhagic stroke.

Type: Observational

Start Date: Jan 2025

open study

This is a Phase 1 first-in-human, open-label multicenter study designed to evaluate the safety, tolerability, pharmacokinetics (PK), pharmacodynamics, and preliminary antitumor activity of RLY-8161, an NRAS-selective inhibitor, in participants with advanced NRAS-mutant melanoma and other solid tumors.

Type: Interventional

Start Date: Mar 2026

open study

The goal of this clinical trial is to evaluate if lirafugratinib is efficacious and safe to treat adult patients with previously treated, unresectable, locally advanced or metastatic solid tumors (excluding cholangiocarcinoma) harboring FGFR2 fusion or rearrangement. Participants will: - Take lirafugratinib regularly as instructed by their study doctor. - Visit the clinic as instructed for checkups and tests. - Keep a diary recording each time a dose of lirafugratinib is taken.

Type: Interventional

Start Date: Jun 2026

open study

This is a randomized controlled trial investigating the effects of an 8-TRE intervention compared to a wait list (control) on metabolic health and body composition in people diagnosed with BD and who are currently obese and at least mildly depressed. Following a 1-week baseline assessment, participants will be randomized to either a TRE or the wait list (1-to-1 ratio) for 8 weeks. At baseline, Week 8 (post treatment), and Week 20 (follow-up), investigators will assess daily eating patterns for one week, followed by collection of fasting lipids, body weight and vital signs. At Week 4 (i.e., mid-treatment), the investigators will assess self-reported outcomes only. Participants assigned to the wait list condition will have the option of receiving the TRE intervention after 20 weeks.

Type: Interventional

Start Date: Jun 2026

open study

This is a two-part, Phase I/II, open-label, global, multicenter study assessing the safety and efficacy of the combination of tulmimetostat (DZR123) and JSB462 (luxdegalutamide) versus standard of care in participants with progressive metastatic castrate resistant prostate cancer (mCRPC).

Type: Interventional

Start Date: Oct 2025

open study

This research study is a prospective, single-arm clinical trial to assess the effect of a dietary intervention for more plant-based and less animal-based food intake on secondary bile acid production, gut microbiota, circulating biomarkers and gene expression associated with colonic bile acid receptor activation and colorectal cancer.

Type: Interventional

Start Date: Jun 2026

open study

This is a longitudinal, observational epidemiological study designed to estimate the prevalence of depression, anxiety, and behavior problems in children ages 18 months through 11 years with cystic fibrosis (CF).

Type: Observational

Start Date: Jun 2025

open study

This Phase II study aims to evaluate efficacy and safety of the combination of JSB462 (also known as luxdegalutamide) at 100 mg and 300 mg once a day (QD) doses + abiraterone compared with an androgen receptor pathway inhibitor (ARPI, abiraterone or enzalutamide) in participants with metastatic Hormone Sensitive Prostate Cancer (mHSPC) and to select the recommended dose of the combination for phase III. Towards that end, the totality of the efficacy, safety, tolerability and PK data from participants randomized in the study will be evaluated

Type: Interventional

Start Date: Jul 2025

open study

The purpose of this study is to assess the efficacy and safety of iza-bren, a bi-specific antibody-drug conjugate against EGFR and HER3 with a topoisomerase inhibitor payload versus treatment of physician's choice (TPC) (paclitaxel, nab-paclitaxel, carboplatin plus gemcitabine, and capecitabine) for the treatment of first-line metastatic triple-negative breast cancer (TNBC) or estrogen receptor (ER)-low, human epidermal growth factor receptor 2 (HER2)-negative BC patients who are not candidates for anti-PD(L)1 therapy and endocrine therapies.

Type: Interventional

Start Date: Sep 2025

open study

A phase II, randomized, open-label, two-arm clinical trial evaluating the safety and efficacy of pramipexole extended release (ER) versus escitalopram for the treatment of major depressive disorder (MDD) and comorbid MDD with mild neurocognitive disorder (MND) in persons with HIV (PWH). Participants will be assessed comprehensively and briefly at intercurrent visits to monitor for toxicity, response to therapy, and to assess for dose changes. An optional sub-study to evaluate treatment impact on the cerebrospinal fluid (CSF) profile will be conducted in a subset of 36 participants.

Type: Interventional

Start Date: May 2026

open study

The purpose of TEAM-HF IDE clinical trial is to evaluate safety and effectiveness of the HeartMate 3 LVAS compared to guideline directed medical therapy (GDMT) in a population of ambulatory advanced heart failure patients who are not dependent on intravenous inotrope.

Type: Interventional

Start Date: Dec 2024

open study

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 observational study is to determine whether specific advanced MRI measures are associated with functional outcomes in patients who are comatose after cardiac arrest. The main question[s] it aims to answer are: Aim 1: Determine if stimulus-based functional MRI (fMRI)-measured activations are independently associated with favorable neurological outcomes after cardiac arrest Aim 2: Determine if resting state functional MRI (rs-fMRI)-measured functional network connectivity is independently associated with favorable neurological outcomes after cardiac arrest. Aim 3: Determine if diffusion tensor imaging (DTI)-measured white matter integrity is associated with favorable neurological outcomes after cardiac arrest. Participants will undergo advanced MRI sequences at time of clinical MRI, and will be followed for 6 months post-arrest.

Type: Observational

Start Date: May 2024

open study

The purpose of the study is to evaluate efficacy of riliprubart compared to placebo in adult participants with CIDP whose disease is refractory to standard of care. The study duration will be for a maximum of 111 weeks including screening, treatment phases, and follow-up.

Type: Interventional

Start Date: Jul 2024

open study

This is a Phase 1/1b open-label, multi-center dose escalation and dose optimization study designed to evaluate the safety and preliminary efficacy of IAM1363 in participants with advanced cancers that harbor HER2 alterations.

Type: Interventional

Start Date: Mar 2024

open study

The purpose of this platform study is to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary antitumor activity of novel RAS(ON) inhibitors as a monotherapy or combined with Standard(s) of Care (SOC) or with each other. The first four subprotocols include the following: Subprotocol A: RMC-6291 +/- RMC-6236 + SOC Subprotocol B: RMC-6236 + SOC Subprotocol C: RMC-9805 +/- RMC-6236 + SOC Subprotocol D: RMC-9805

Type: Interventional

Start Date: Jan 2024

open study