Mass General - Division of Clinical Research

This phase II trial compares the use of pembrolizumab and radiation therapy to chemotherapy with cisplatin, gemcitabine, 5-fluorouracil or mitomycin-C and radiation therapy for the treatment of non-muscle invasive bladder cancer. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as cisplatin, gemcitabine, 5-fluorouracil or mitomycin-C, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shrink tumors. Giving pembrolizumab with radiation may kill more tumor cells than chemotherapy with radiation therapy in patients with non-muscle invasive bladder cancer.

Type: Interventional

Start Date: Jun 2025

open study

This is a non-inferiority patient-centered and pragmatic comparative-effectiveness pregnancy randomized controlled trial (RCT) with postpartum maternal and child follow-up through 2 years of 1,572 individuals with gestational diabetes mellitus (GDM) randomized to oral metformin versus injectable insulin. This study will determine if metformin is not inferior to insulin in reducing adverse pregnancy outcomes, is comparably safe for exposed individuals and children, and if patient-reported factors, including facilitators of and barriers to use, differ between metformin and insulin. A total of 1,572 pregnant individuals with GDM who need pharmacotherapy will be recruited at 20 U.S. sites using consistent treatment criteria to metformin versus insulin. Participants and their children will be followed through delivery to two years postpartum.

Type: Interventional

Start Date: Aug 2024

open study

This phase II trial compares the effects of immunoglobulin replacement therapy with a placebo for preventing infectious complications in patients receiving CD19 chimeric antigen receptor (CAR)-T cell therapy. Hypogammaglobulinemia is a common complication in patients who receive CD19 CAR-T cell therapy. This is a condition in which the level of immunoglobulins (antibodies) in the blood is low and the risk of infection is high. Immunoglobulin replacement therapy works by replacing the body's immunoglobulin G (IgG) antibodies with donor blood product derived IgG antibodies that may help prevent infection. IgG antibodies are often depleted as a result of CAR-T therapy. Giving immunoglobulin replacement therapy may prevent infectious complications in patients receiving CD19 CAR-T cell therapy.

Type: Interventional

Start Date: Jun 2024

open study

The primary objectives of this study are to determine the recommended dose(s) of PYX-201 for participants with recurrent/metastatic (R/M) solid tumors, and to determine the objective response rate (ORR) in participants treated with PYX-201 as a single agent.

Type: Interventional

Start Date: Mar 2023

open study

This phase I trial tests the safety, side effects and best dose of peposertib (M3814) in combination with tuvusertib (M1774) in treating patients with solid tumors that have spread to other places in the body (advanced). Peposertib and tuvusertib stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

Type: Interventional

Start Date: Jun 2024

open study

This registry evaluates patient characteristics, real-world treatment patterns, and short- and long-term outcomes in a population of patients in the United States and Europe with symptomatic obstructive hypertrophic cardiomyopathy (HCM) who are receiving mavacamten, receiving other treatment for obstructive HCM, or not receiving treatment for obstructive HCM due to intolerance or failure of prior treatment. United States Sub-Study: The purpose of this study is to evaluate the safety of mavacamten in patients with symptomatic obstructive HCM in the real-world setting. Europe Sub-Study: The purpose of this study is to evaluate the effectiveness and safety of mavacamten in patients with symptomatic obstructive HCM in the real-world setting.

Type: Observational [Patient Registry]

Start Date: Aug 2022

open study

The aim of this study is to assess the safety, side effects and effectiveness of EP0031 (Lunbotinib) in patients with advanced RET-altered non-small cell lung cancer (NSCLC) in monotherapy and in combination with standard of care (SOC) chemotherapy.

Type: Interventional

Start Date: Sep 2022

open study

This trial studies how well proton beam radiation therapy compared with intensity modulated photon radiotherapy works in treating patients with stage I-IVA esophageal cancer. Proton beam radiation therapy uses a beam of protons (rather than x-rays) to send radiation inside the body to the tumor without damaging much of the healthy tissue around it. Intensity modulated photon radiotherapy uses high-energy x-rays to deliver radiation directly to the tumor without damaging much of the healthy tissue around it. It is not yet known whether proton beam therapy or intensity modulated photon radiotherapy will work better in treating patients with esophageal cancer.

Type: Interventional

Start Date: Jun 2019

open study

The Fabry Registry is an ongoing, international multi-center, strictly observational program that tracks the routine clinical outcomes for patients with Fabry disease, irrespective of treatment status. No experimental intervention is involved; patients in the Registry undergo clinical assessments and receive care as determined by the patient's treating physician. The primary objectives of the Registry are: - To enhance the understanding of the variability, progression, and natural history of Fabry disease, including heterozygous females with the disease; - To assist the Fabry medical community with the development of recommendations for monitoring patients and reports on patient outcomes to help optimize patient care; - To characterize and describe the Fabry population as a whole; - To evaluate the long-term safety and effectiveness of Fabrazyme® Fabry Pregnancy Sub-registry: This Sub-registry is a multicenter, international, longitudinal, observational, and voluntary program designed to track pregnancy outcomes for any pregnant woman enrolled in the Fabry Registry, regardless of whether she is receiving disease-specific therapy (such as enzyme replacement therapy with agalsidase beta) and irrespective of the commercial product with which she may be treated. Data from the Sub-registry are also used to fulfill various global regulatory requirements, to support product development/reimbursement, and for other research and non-research-related purposes. No experimental intervention is given; thus a patient will undergo clinical assessments and receive standard of care treatment as determined by the patient's physician. If a patient consents to this Sub-registry, information about the patient's medical and obstetric history, pregnancy, and birth will be collected, and, if a patient consents to data collection for her infant, data on infant growth through month 36 postpartum will be collected.

Type: Observational [Patient Registry]

Start Date: Jul 2001

open study

The goal of this observational study is to learn about the natural progression of Angelman syndrome (AS) in children and adults with a confirmed genetic diagnosis of AS. The main questions it aims to answer are: - How do developmental skills, such as communication, motor abilities, and adaptive behaviors, change over a 1-year period in people with AS? - Are there specific patterns in brain activity or sleep that are associated with changes in AS symptoms over time? Participants will: - Visit the study site 5 times over 1 year (approximately every 3 months) for assessments. - Complete tests and questionnaires about development, behaviors, and sleep with the help of their caregivers. - Undergo electroencephalograms (EEGs) to measure brain activity and wear a sleep-monitoring device at home (to collect actigraphy data).

Type: Observational

Start Date: Jun 2026

open study

The purpose of this study is to see if combining silevertinib with temozolomide after surgery and radiotherapy helps treat newly diagnosed glioblastoma (GBM) better than using temozolomide alone in the maintenance setting. Specifically, this study is being done to find answers to the following questions: - How much of the study drugs (silevertinib combined with temozolomide) should be given to participants with GBM? - What are the side effects participants have when taking the study drug (silevertinib combined with temozolomide)? - Can the study drug (silevertinib combined with temozolomide) help participants with GBM live longer without disease progression compared to treatment with temozolomide alone?

Type: Interventional

Start Date: May 2026

open study

The overall aim of this study is to develop an intervention that can help recovery in patients surviving severe brain injury but failing to fully recover. In particular, this multicenter project aims to (1) establish short-term efficacy of tFUS as a therapeutic to promote recovery in patients with prolonged DoC as compared to sham treatment, (2) establish dose-related safety and efficacy of tFUS as a therapeutic intervention in prolonged DoC patients and (3) explore preliminary predictors and biomarkers of susceptibility and response to thalamic sonication.

Type: Interventional

Start Date: Apr 2025

open study

This is a randomized controlled trial testing the efficacy of Resilience Training in college students with elevated transdiagnostic risk for developing a serious mental illness.

Type: Interventional

Start Date: Feb 2025

open study

The purpose of this study is to evaluate the efficacy and safety of rapcabtagene autoleucel versus comparator in participants with severe active Granulomatosis with Polyangiitis (GPA) or Microscopic Polyangiitis (MPA)

Type: Interventional

Start Date: Mar 2025

open study

Women living with HIV have been shown to experience more frequent and severe hot flashes and night sweats (collectively known as vasomotor symptoms) as compared to women living without HIV. This correlates with disturbed sleep, increased depressive symptoms, increased anxiety, worse mental function, interference with activities of daily living including work, and worse overall quality of life. Hormone therapy is considered to be the most effective therapy for hot flashes and night sweats and the most appropriate choice to prevent bone loss at the time of menopause for women without HIV. However, the usefulness of hormone therapy has not been specifically studied in women living with HIV. This trial is being done to see if: - There is evidence to support the use of hormone therapy (estradiol with or without progesterone) for the treatment of hot flashes and night sweats in women living with HIV - Hormone therapy improves mental function, mood, sleep, quality of life, bone health, heart health, and inflammation in women living with HIV - Hormone therapy is safe and tolerable for women living with HIV

Type: Interventional

Start Date: Apr 2026

open study

This study is designed to characterize the safety, tolerability, and anti-tumor activity of MDX2001 in patients with advanced solid tumors.

Type: Interventional

Start Date: Jun 2024

open study

This study is to prospectively compare clinical effectiveness between clinically- matched incremental hemodialysis and conventional hemodialysis in patients with incident kidney dysfunction requiring dialysis and residual kidney function. The study will enroll 350 patients on chronic hemodialysis and 140 caregivers of enrolled patients. Patients will be randomized in 1:1 ratio to either incremental start hemodialysis or conventional hemodialysis. Caregivers will be followed along with patients for an average period of 2 years post randomization.

Type: Interventional

Start Date: Feb 2024

open study

The goal of this observational study is to evaluate the role of blood pressure (BPV) variability in patients suffering from acute ischemic stroke. The main questions it aims to answer are: 1. To determine the association of BPV with functional/cognitive outcome after ischemic stroke. 2. To determine a pathophysiologic mechanism of BPV's deleterious effect on functional outcome. 3. To evaluate potential treatment targets to pharmacologically reduce BPV after ischemic stroke.

Type: Observational

Start Date: Jul 2024

open study

The purpose of this study is to obtain preliminary device safety information and demonstrate proof of principle (feasibility) of the ability of people with tetraplegia to control a computer cursor and other assistive devices with their thoughts.

Type: Interventional

Start Date: Oct 2023

open study

This is a Phase 2 study to evaluate the efficacy, safety, and tolerability of axatilimab at 3 different dose levels in participants with recurrent or refractory active chronic graft versus host disease (cGVHD) who have received at least 2 prior lines of systemic therapy.

Type: Interventional

Start Date: Mar 2021

open study

The purpose of this study is to determine the rate of minimum residual disease (MRD) negative response (i.e. the rate of no evidence of disease) of the study drugs, zanubrutinib, obinutuzumab, and venetoclax, given in combination as a treatment for CLL and/or SLL.

Type: Interventional

Start Date: Feb 2019

open study

Phase 1 dose escalation will determine the first cycle dose-limiting toxicities (DLTs), the maximum tolerated dose (MTD), the biologically effective dose and recommended Phase 2 dose (RP2D) of repotrectinib given to adult subjects with advanced solid malignancies harboring an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement. Midazolam DDI substudy will examine effect of of repotrectinib on CYP3A induction. Phase 2 will determine the confirmed Overall Response Rate (ORR) as assessed by Blinded Independent Central Review (BICR) of repotrectinib in each subject population expansion cohort of advanced solid tumors that harbor a ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement. The secondary objective will include the duration of response (DOR), time to response (TTR), progression-free survival (PFS), overall survival (OS) and clinical benefit rate (CBR) of repotrectinib in each expansion cohort of advanced solid tumors that harbor a ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement.

Type: Interventional

Start Date: Mar 2017

open study

This study is being conducted to decrease the rate of surgical wound complications. The investigators are studying the effects that caloric restriction has on decreasing the rate of surgical wound complications.

Type: Interventional

Start Date: Jun 2016

open study

The purpose of this study is to obtain preliminary device safety information and demonstrate proof of principle (feasibility) of the ability of people with tetraplegia to control a computer cursor and other assistive devices with their thoughts.

Type: Interventional

Start Date: May 2009

open study

The purpose of this study is to collect information about the effects of EPP/XLP in adults and adolescents. This is an observational study in which participants will not receive any treatment. Study details include: - The study duration will be up to 6 months for each participant. - After Screening, participants will have a Baseline (Day 1) visit and return for visits every 4 weeks through 24 weeks. - Assessments to evaluate EPP/XLP will include clinical laboratory tests, physical exams, vital signs measurement, blood draws for PPIX concentration, reporting of EPP/XLP-related symptoms (including completion of a daily diary), light dosimetry.

Type: Observational

Start Date: Apr 2026

open study