Gene Therapy

Building on prior research, a team tackled mouse-model colon cancer with a novel nonviral nanovector to carry dual–messenger RNA (mRNA) immunogene therapy.

The proof-of-concept study showed that antisense oligonucleotides developed by the researchers successfully restored cellular development and brain cell function in patients with the disease characterized by multiorgan dysfunction.

A new report says early evidence of using gene therapy to treat monogenic diseases offers reason for optimism.

New study findings demonstrate that valoctocogene roxaparvovec, a gene therapy for severe hemophilia A, significantly reduces bleeding episodes and dependency on factor VIII infusions over a 3-year period, while maintaining a favorable safety profile.

This study introduces a novel "all-in-one" strategy combining CD7 chimeric antigen receptor T-cell therapy with haploidentical hematopoietic stem-cell transplantation, showing significant potential to improve survival and reduce toxicities in patients with relapsed or refractory CD7-positive hematologic cancers.

Data from the study showed that exa-cel prevented vaso-occlusive crises in all but 1 of the 30 evaluable patients for at least 12 months.

Only 11 cases of adverse events (AEs) were reported over a 6-year time frame, the investigators found, following administration of chimeric antigen receptor T-cell therapy (CAR T).

The analysis also found the therapy has a manageable safety profile.

In their preclinical model, the researchers found efficacy both in vitro and in vivo by using CRISPR-Cas9 to mimic porphyria and combining the technology with light therapy.

A single injection of a gene therapy was well tolerated and showed the potential to control exudation in patients with neovascular age-related macular degeneration (wet AMD).

The approval makes atidarsagene autotemcel (arsa-cel [Lenmeldy]; Orchard Therapeutics) the first approved treatment for metachromatic leukodystrophy, a disease caused by a mutation in the ARSA gene and marked by progressive declines in both the central and peripheral nervous systems.

In a recent issue of JAMA, a team led by Benjamin N. Rome, MD, MPH, examined how the FDA’s accelerated approval process has moved 5 genetically targeted treatments for Duchenne muscular dystrophy (DMD) through its pipeline despite limited evidence on their efficacy.

Since 2016, 5 targeted treatments have received accelerated approval from the FDA for use in Duchenne muscular dystrophy (DMD), and the total spend for just 3 of them is $3.1 billion.

Knowledge gaps persist in awareness of and education on the use of chimeric antigen receptor (CAR) T-cell therapies for hematologic malignancies, especially multiple myeloma and lymphoma.

With little data available on outcomes among patients who have B-cell lymphoma (BCL) and secondary central nervous system (CNS) involvement who were administered CD19-targeting chimeric antigen receptor (CAR) T-cell therapy, these investigators enrolled 4 male patients in their study.

For chimeric antigen receptor T-cell therapies (CAR T) approved to treat B-cell lymphoproliferative disorders and multiple myeloma, more data are needed on the effects of posttreatment myeloid neoplasms to optimize patient counseling, risk stratification, and surveillance.

Coverage from the session, "Which Comes First? Bispecifics, CAR T-Cell Therapy, and Cost Consideration in Sequencing,” at Patient-Centered Oncology Care 2023.

For this analysis, investigators used metagenomic sequencing files from the Gut Bugs trial, a placebo-controlled multidonor fecal microbiota transplantation (FMT) trial conducted among adolescents classified as obese.

The gene therapy delandistrogene moxeparvovec-rokl, also known as Elevidys (Sarepta Therapeutics) is indicated to treat Duchenne muscular dystrophy (DMD) in ambulatory patients aged 4 to 5 years, and Sarepta recently filed supplemental data with the FDA seeking to expand the labeled indication.

Sickle cell disease (SCD) will be the first focus of the Cell and Gene Therapy (CGT) Access Model; the FTC has challenged the validity of over 100 drug product patents to help increase competition and potentially lower prices; the rate of infectious syphilis cases in the US rose 9% in 2022.

Sarepta Therapeutics has started screening participants for a Phase 3 clinical trial to test its gene therapy candidate SRP-9003 in children with limb-girdle muscular dystrophy type 2E; wastewater testing points to a new COVID-19 infection wave fueled by the JN.1 variant; most patients on anti-obesity medications kept at least some weight off up to a year after they stopped taking them.

This new economic valuation of the societal and health care benefits of gene therapy to treat sickle cell disease (SCD) concludes the highly personalized treatment has potential to be cost effective if priced below $2 million.

The FDA and the European Medicines Agency have accepted marketing authorization applications and decisions are pending.

Delandistrogene moxeparvovec-rokl (Elevidys; Sarepta Therapeutics) is currently approved to treat Duchenne muscular dystrophy in 4- and 5-year-old patients who have a confirmed DMD gene mutation.

A recent study encapsulates how patients and caregivers characterize the impact of Duchenne muscular dystrophy (DMD) on patients’ physical limitations and symptom burden, potentially helping to inform patient-centered strategies for assessing clinical outcomes in DMD research.

Excision BioTherapeutics has so far released positive safety data from the first 3 participants living with HIV-1, with no evidence of vector shedding in sexual organ tissue.

From the 2023 Academy of Managed Care Pharmacy (AMCP) Nexus meeting, held in October, expert interviews and insightful updates on the Inflation Reduction Act, gene therapy affordability and access, and the 340B Drug Pricing Program comprise the conference highlights.

Also known as Sanfilippo syndrome, this rare genetic syndrome has no known cures and what current treatment options are available are expensive and limited in supply.

The decision was supported by efficacy data from 36 patients from the ongoing phase 1/2 HGB-206 trial (NCT02140554) and 2 patients in the phase 3 HGB-210 trial (NCT04293185). It was the second approval from FDA for a gene therapy for sickle cell disease.