U.S. Cell And Gene Therapy Clinical Trials Market Size Expected to Hit USD 14.68 Billion by 2034

According to Nova One Advisor, the U.S. cell and gene therapy clinical trials market size is expected to be worth around 14.68 billion by 2034, increasing from USD 5.92 billion in 2025, representing a healthy CAGR of 15.62% from 2025 to 2034.

The U.S. cell and gene therapy clinical trials market is expanding as it provides many advantages such as targets the root cause, treating previously incurable diseases, a one-time treatment approach, potential for long-lasting effects, and providing potential for personalized medicine. Gene therapy is used to lessen levels of a disease-causing type of protein, increase production of disease-fighting proteins, or produce modified proteins.

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Approved Cell and Gene Therapies Products in 2025

Product & Trade Name

Manufacturer

ABECMA (idecabtagene vicleucel)

Celgene Corporation, a Bristol-Myers Squibb Company

ADSTILADRIN (nadofaragene firadenovec-vcng)

Ferring Pharmaceuticals A/S

ALLOCORD (HPC, Cord Blood)

SSM Cardinal Glennon Children's Medical Center

AMTAGVI (lifileucel)

Iovance Biotherapeutics, Inc.

AUCATZYL (obecabtagene autoleucel)

Autolus Limited

BEQVEZ (fidanacogene elaparvovec-dzkt)

Pfizer, Inc.

CARVYKTI (ciltacabtagene autoleucel)

Janssen Biotech, Inc.

U.S. Cell and Gene Therapy Clinical Trials Market Highlights:

• By phase, the phase III segment dominated the market with the largest share in 2024.

• By phase, the phase I segment is expected to show the fastest growth over the forecast period.

• By indication, the oncology segment held the largest market share in 2024.

• By indication, the cardiology segment is expected to register fastest growth during the forecast period.

Market Overview and Industry Potential

Gene and cell therapy clinical trials are use structured as a phase I / II study where a small group of contributors with the disease are registered and both efficacy and safety tests are performed. They required adequate time to fully assess the results of a trial whether advantages outweigh risks. Contributing in clinical trials is an opportunity to receive a new product, while moving along research to supports others who have the same disease or condition. The clinical study is led in a group of people with a precise disease or condition to test the drug's efficacy and safety.

Gene and cell therapy provide an opportunity to fix those genetic errors who are impossible to treat in past. In this trial, a physician transplants human cells in a patient to replace or repair damaged cells.  Cell and gene therapy become real for patients when innovations translate into the manufacture of advanced therapy medicinal products (ATMPs). These novel therapies treat genetic diseases at the source by moving changes in their cells, tissue, or DNA with the significant to offer an efficient ‘once only’ treatment to ease severe disease. As these diseases are caused on a genetic level, they were conventionally understood poorly and largely considered hopeless. Genetic diseases continue prevalent, with many having few, if any, treatments to alleviate indications.

Latest Trends of the Market

In May 2025, Genprex, Inc., a clinical-stage gene therapy company focused on developing life-changing therapies for patients with cancer and diabetes, announced that it has been selected to present at the upcoming 2025 American Society of Clinical Oncology (ASCO).

In May 2025, AviadoBio, a pioneering gene therapy company devoted to developing and delivering potentially transformative medicines for neurodegenerative disorders, announced that its Phase 1/2 ASPIRE-FTD clinical trial is open in the UK. The trial is appraising AVB-101, an new gene therapy, in people with frontotemporal dementia (FTD) with GRN gene mutations (FTD-GRN). Cambridge University Hospitals NHS Foundation Trust (CUH), which hosts an internationally renowned centre of excellence in offering support and care for families affected by FTD, is present recruiting patients.

In June 2025, the CGTLive team was diligently tracking the FDA's activities related to the development of cell and gene therapies for the treatment of rare, complex, and otherwise challenging diseases and disorders. The agency has continued to ramp up its activities around these therapies as more of them progress through the pipeline in tandem.

Recent Advancements of Cell and Gene Therapy Clinical Trials for Drug Discovery: Market’s Largest Potential

Increasing cutting edge technology of cell and gene therapies (CGTs) in drug discovery creates the opportunity to the growth of the market. It is most advanced medical treatments, precisely designed to correct the root genetic cause of a fundamental health challenge. CGTs have the strength to transform conventional treatment for a broad range of diseases that exhibit poor efficiesncy.

Initiation and advancements in gene editing devices and cell therapy srtratergies, including autologous chimeric antigen receptor (CAR) T cell therapy, CRISPR-Cas9, and viral vector engineering strategies, have expressively contributed to huge growth in CGTs sectior. Automation platforms allow consistent large-scale and small-scale production, which suggestively involve to the controlling of manufacturing expenses.

For Instance, In July 2025, Atsena Therapeutics, a clinical-stage gene therapy company focused on using the life-changing power of genetic medicine to reverse or prevent blindness, announced that the U.S. Food and Drug Administration (FDA) has agreed to the expansion of the company’s ongoing Phase 1 / 2 LIGHTHOUSE study of ATSN-201 into a continuous Phase 1 / 2 / 3 trial, enabling it to serve as a pivotal trial to support a Biologics License Application (BLA) submission for the treatment of X-linked retinoschisis (XLRS).

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Report Scope of U.S. Cell And Gene Therapy Clinical Trials Market

Report Coverage

Details

Market Size in 2025

USD 5.92 Billion

Market Size by 2034

USD 14.68 Billion

Growth Rate From 2025 to 2034

CAGR of 10.62%

Base Year

2024

Forecast Period

2025-2034

Segments Covered

Phase, Indication

Market Analysis (Terms Used)

Value (US$ Million/Billion) or (Volume/Units)

Key Companies Profiled

Charles River Laboratories, ICON Plc, IQVIA, LabCorp, Medpace, Novotech, PAREXEL International Corp.,Syneos Health, Thermo Fisher Scientific, Inc., Veristat, LLC

Country Level Analysis:

Increasing approved gene therapy treatments available in the United States drive the growth of the market. Leading research and developing a safe and effective gene therapy is expensive, and it can be challenging and inefficient to produce a gene therapy on a large scale.  More than 4,000 gene, cell, and RNA therapies in expansion. Early–phase clinical trials are significant for evaluating novel medicine safety, tolerability, and pharmacokinetics.

They offer appreciated insights in the safety of potential therapeutic agents before they are progressive to larger–scale research. The cell and gene therapy areas are increasing exponentially, with novel players developing daily and much development being made both in and out of the laboratory.

For Instance, In April 2025, Abeona Therapeutics Inc. announced the U.S. Food and Drug Administration (FDA) has approved ZEVASKYN gene-modified cellular sheets, also known as pz-cel, as the first and only autologous cell-based gene therapy for the treatment of wounds in adult and pediatric patients with recessive dystrophic epidermolysis bullosa (RDEB), a serious and debilitating genetic skin disease.

U.S. Cell and Gene Therapy Clinical Trials Market Segmentation Analysis:

By Phase Analysis:

The phase III segment dominates in the U.S. cell and gene therapy clinical trials market, as phase III trial continues with the emphasis on safety and efficacy, but increases the standards than the Phase II by growing the size and refining the endpoints essential for approval. A drug in Phase III can be under investigation for many years and potentially enrol thousands of subjects in a randomized, double-blind, placebo-controlled trial. The NDA covers all the scientific information that the business has gathered during the phases in all trials.

On the other hand, the phase I segment is expected to grow exponentially during the forecast period as phase I trials are done to discover the highest dose of a novel treatment that can be given safely deprived of causing serious adverse effects. These studies help to decide on the greatest way to give the novel treatment. Phase I trials look at what the treatment does to the body and what the body does with the treatment. Phase one in most clinical trials tests if the therapy is safe for a small number of well volunteers. In gene and cell therapy clinical trials, the conduct can be far more challenging and very precise to a disease, so strong participants are not generally used.

By Indication Analysis:

The oncology segment generated the highest market revenue in 2024, as clinical trials are the novel ways to prevent, find, and treat cancer. They support physician to improve the quality of life for patients with cancer by testing ways to manage the adverse effects of cancer and its treatment. Most cancer clinical trials are conduct studies that contain people who have cancer. These trials test novel treatments or new ways of using present treatments. The main aim of cancer screening trials is to test ways to find cancer before it causes symptoms, when it may be easier to manage.

On the other hand, the cardiology segment is expected to grow exponentially during the forecast period as therapeutic use of cell therapies has the probable to reverse myocardial injury and enhance cardiac function, in contrast to most present medical therapies. Cell-based therapy enhanced quality of life for patients with progressive heart failure, Mayo Clinic scientists and international partners discovered in a late-stage international clinical trial.

Some of the Prominent Players in the U.S. Cell and Gene Therapy Clinical Trials Market

Charles River Laboratories

ICON Plc

IQVIA

• LabCorp

• Medpace

• Novotech

• PAREXEL International Corp.

Syneos Health

Thermo Fisher Scientific, Inc.

• Veristat, LLC

What is Going Around the Globe? 

In April 2025, INmune Bio Inc. a clinical-stage biotechnology company targeting inflammation and immunology through the innate immune system has partnered with the Cell and Gene Therapy Catapult (CGT Catapult) to establish large-scale, commercial-ready manufacturing for its cell therapy platforms. CGT Catapult is an independent technology and innovation organization specializing in the advancement of the cell and gene therapy industry. 

In April 2025, AGC Biologics launched New Dedicated Cell and Gene Business Division. The new Cell and Gene Technologies Division will focus on elevating existing AGC Biologics capabilities and supporting developers in need of capacity, scientific capabilities, and technically qualified cell and gene CDMO operators

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Segments Covered in the Report

This report forecasts revenue growth at country levels and provides an analysis of the latest industry trends in each of the sub-segments from 2021 to 2034. For this study, Nova one advisor, Inc. has segmented the U.S. cell and gene therapy clinical trials market.

By Phase

• Phase I

• Phase II

• Phase III

• Phase IV

By Indication

• Oncology

• Cardiology

• CNS

• Musculoskeletal

• Infectious diseases

• Dermatology

• Endocrine, metabolic, genetic

• Immunology & inflammation

• Ophthalmology

• Hematology

• Gastroenterology

• Others

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Our expertise spans the entire biotech and pharmaceutical value chain, empowering startups, global enterprises, investors, and research institutions that are pioneering the next generation of therapies in regenerative medicine, oncology, and precision medicine.

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