Mass General - Division of Clinical Research

Previous evidence has indicated that resection for recurrent glioblastoma might benefit the prognosis of these patients in terms of overall survival. However, the demonstrated safety profile of this approach is contradictory in the literature and the specific benefits in distinct clinical and molecular patient subgroups remains ill-defined. The aim of this study, therefore, is to compare the effects of resection and best oncological treatment for recurrent glioblastoma as a whole and in clinically important subgroups. This study is an international, multicenter, prospective observational cohort study. Recurrent glioblastoma patients will undergo tumor resection or best oncological treatment at a 1:1 ratio as decided by the tumor board. Primary endpoints are: 1) proportion of patients with NIHSS (National Institute of Health Stroke Scale) deterioration at 6 weeks after surgery and 2) overall survival. Secondary endpoints are: 1) progression-free survival (PFS), 2) NIHSS deterioration at 3 months and 6 months after surgery, 3) health-related quality of life (HRQoL) at 6 weeks, 3 months, and 6 months after surgery, and 4) frequency and severity of Serious Adverse Events (SAEs) in each arm. Estimated total duration of the study is 5 years. Patient inclusion is 4 years, follow-up is 1 year. The study has been approved by the Medical Ethics Committee (METC Zuid-West Holland/Erasmus Medical Center; MEC-2020-0812). The results will be published in peer-reviewed academic journals and disseminated to patient organisations and media.

Type: Observational

Start Date: Jan 2023

open study

Patients undergoing radiation for the treatment of malignancies may suffer from side effects to the skin in the form of radiation dermatitis. This can lead to local wound formation with poor healing. Treatment options for the resulting wound can range from watchful waiting to more aggressive debridement and secondary grafting. Epidermal grafting is a technique in which autologous epidermis is used to cover wounds that are larger than the donor site. Previous studies have demonstrated that this is an effective treatment for different wounds and ulcers but its utility has not yet been evaluated for the treatment of radiation induced injuries. The CelluTome Epidermal Grafting System is a semi automated device that allows easy formation of epidermal Blister. Our study will evaluate the efficacy of epidermal grafts collected using the CelluTome device in the treatment of radiation dermatitis.

Type: Interventional

Start Date: Jan 2021

open study

This trial examines colorectal cancer incidence in participants with 1 to 2 non-advanced adenomas randomized to surveillance colonoscopy at 10 years compared to participants randomized to surveillance colonoscopy at 5 and 10 years.

Type: Interventional

Start Date: Feb 2022

open study

Without an explanation for severe and sometimes life-threatening symptoms, patients and their families are left in a state of unknown. Many individuals find themselves being passed from physician to physician, undergoing countless and often repetitive tests in the hopes of finding answers and insight about what the future may hold. This long and arduous journey to find a diagnosis does not end for many patients- the Office of Rare Diseases Research (ORDR) notes that 6% of individuals seeking their assistance have an undiagnosed disorder. In 2008, the National Institutes of Health (NIH) Undiagnosed Diseases Program (UDP) was established with the goal of providing care and answers for these individuals with mysterious conditions who have long eluded diagnosis. The NIH UDP is a joint venture of the NIH ORDR, the National Human Genome Research Institute Intramural Research Program (NHGRI-IRP), and the NIH Clinical Research Center (CRC) (1-3). The goals of the NIH UDP are to: (1) provide answers for patients with undiagnosed diseases; (2) generate new knowledge about disease mechanisms; (3) assess the application of new approaches to phenotyping and the use of genomic technologies; and (4) identify potential therapeutic targets, if possible. To date, the UDP has evaluated 3300 medical records and admitted 750 individuals with rare and undiagnosed conditions to the NIH Clinical Center. The NIH UDP has identified more than 70 rare disease diagnoses and several new conditions. The success of the NIH UDP prompted the NIH Common Fund to support the establishment of a network of medical research centers, the Undiagnosed Diseases Network (UDN), for fiscal years 2013-2020. The clinical sites will perform extensive phenotyping, genetic analyses, and functional studies of potential disease-causing variants. The testing performed on patients involves medically indicated studies intended to help reach a diagnosis, as well as research investigations that include a skin biopsy, blood draws, and DNA analysis. In addition, the UDN will further the goals of the UDP by permitting the sharing of personally identifiable phenotypic and genotypic information within the network. By sharing participant information and encouraging collaboration, the UDN hopes to improve the understanding of rare conditions and advance the diagnostic process and care for individuals with undiagnosed diseases.

Type: Observational

Start Date: Sep 2015

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 Connect-One Study is an early feasibility study to obtain preliminary device safety information for the Connexus Brain-Computer Interface (BCI). The Connexus BCI is intended to be used as: (1) an assistive communication device to decode imagined language correlates and speech for patients with impaired communication as a result of severe loss of voluntary motor control; and (2) to provide control of computer devices for individuals with severe loss of voluntary motor control of the upper extremity.

Type: Interventional

Start Date: Mar 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

The goal of this early phase, open-label, single arm clinical trial is to determine the 6-month effects and tolerability of NPC1 (parthenolide and ipriflavone) on biomarkers of Alzheimer's Disease among adults with objective indicators of seeding AD pathology that also have subjective cognitive concerns, Mild Cognitive Impairment, or Alzheimer's Disease (AD)

Type: Interventional

Start Date: Apr 2026

open study

The purpose of this study is to establish the safety of the pulsed field ablation (PFA) therapy of Pulmonary Veins and Electrographic Flow (EGF) identified extra-PV sources of atrial fibrillation (PVI + EGF ablation of sources) and to demonstrate its non-inferiority in effectiveness compared to PFA of Pulmonary Veins and LA Posterior Wall (PVI+ PWA) in the treatment of de novo symptomatic drug-refractory persistent atrial fibrillation (PersAF).

Type: Interventional

Start Date: Nov 2025

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: Apr 2026

open study

The purpose of this research is to evaluate if early vs rescue Therapeutic Plasma Exchange (PLEX) treatment algorithm leads to better visual outcomes in severe Optic Neuritis and leads to better neurological disability outcomes in severe Transverse Myelitis.

Type: Interventional

Start Date: Jul 2025

open study

This study aims to refine and pilot test PDAC-PATHWAYS, a digital informational and supportive care app for patients who are initiating neoadjuvant therapy for pancreatic ductal adenocarcinoma (PDAC).

Type: Interventional

Start Date: Oct 2025

open study

The purpose of this study is to measure the safety and efficacy of LY4175408 in participants with selected advanced cancer. In addition, this study will evaluate how much LY4175408 gets into the bloodstream, how it is broken down, and how long it takes the body to get rid of it. Participation could last up to 4 years.

Type: Interventional

Start Date: Jul 2025

open study

The purpose of the present investigation is to test the efficacy of a virtual, brief (6 sessions) dyadic (patient and care-partner together) intervention to prevent chronic emotional distress in dyads where one person is diagnosed with Young Onset Dementia (YOD). Through this study, we seek to address the unmet need of preventing chronic emotional distress in YOD dyads through a feasible, acceptable and credible program, and ideally enhance resiliency and improve wellbeing and quality of life in both members of the dyad.

Type: Interventional

Start Date: Jan 2026

open study

The ELEVATE III Pivotal Study is a prospective, multi-center, open-label, interventional, randomized, controlled study with an active control group. The study is intended to assess the safety and efficacy of the Elevate™ percutaneous Left Ventricular Assist Device System in patients referred to high-risk percutaneous coronary interventions (HR-PCI).

Type: Interventional

Start Date: Jul 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

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 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 evaluate the safety and effectiveness of Onyx™ LES in the treatment of subjects with active arterial bleeding in the peripheral vasculature outside of the heart and brain.

Type: Interventional

Start Date: May 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

This is a Phase 2 study of the study drug, ivosidenib (a mutant IDH1 inhibitor), compared to placebo, given to patients with IDH1-mutant acute myeloid leukemia (AML) after hematopoietic stem cell transplantation (HCT).

Type: Interventional

Start Date: Jan 2026

open study

Primary PC - or training HCT clinicians to deliver PC domains as part of routine practice - is an alternative model of supportive care. We have developed Sentinel, a primary PC intervention for HCT clinicians and patients. This study will assess Sentinel's feasibility and acceptability.

Type: Interventional

Start Date: Jan 2026

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

Amyotrophic lateral sclerosis (ALS) has been traditionally considered incurable and untreatable. But starting in the 1990s with the introduction of Riluzole, therapies are being discovered and ultimately approved for slowing disease progression. Many pharmaceutical companies continue to seek new therapeutic approaches. One critical aspect of all clinical trials is the need track to progression sensitively to identify the impact of therapy. Tools to track ALS progression must be convenient, objective, require minimal training, be easily standardized, cost-efficient, and have the potential to be applied effectively at home. There has been a push to identify accurate, objective biomarkers of ALS progression. In this study, the investigators propose to use Electrical impedance myography (EIM) to evaluate the progression of the disease. Work has shown that the EIM 50 kilohertz (kHz) phase value from one or more muscles, followed sequentially, can serve as an effective overall biomarker for assessing the rate of ALS progression for a single person.

Type: Observational

Start Date: Mar 2025

open study