The United States clinical trials market was valued at USD 27.89 Billion in 2025 and is expected to grow at a CAGR of 6.80%, reaching USD 53.85 Billion by 2035. The market growth is driven by increasing research and development activities and investment in novel therapeutics.
Base Year
Historical Period
Forecast Period
The rising R&D investments and the growing demand for innovative therapies are expected to boost the market growth in the forecast period.
Decentralized models using telehealth, remote monitoring, and mobile health technologies are improving patient access and engagement, reducing costs, and expanding participation, which is projected to elevate the United States clinical trials market value in the coming years.
The rising use of artificial intelligence and big data analytics in clinical trials is one of the major market trends.
Compound Annual Growth Rate
6.8%
Value in USD Billion
2026-2035
*this image is indicative*
In the United States, the clinical trials market is experiencing significant growth, driven by investments in R&D, technological advancements like artificial intelligence (AI) and big data, and the rise of decentralized clinical trials (DCTs) that leverage telemedicine and wearable technologies. Such innovations improve patient recruitment, trial efficiency, and data management, and are anticipated to elevate the market value in the forecast period. The focus on oncology, precision medicine, and biomarker-driven trials is also a major market trend, with an increasing number of trials targeting personalized therapies. Moreover, regulatory improvements, particularly by the FDA, are poised to impact market dynamics in the coming years.
Increasing Clinical Trial Activity to Drive Market Growth
As of January 2024 , there are 20,465 clinical trials actively recruiting patients in the United States, as per the National Library of Medicine (NLM). This increase in the number of clinical trials is a key driver of the United States clinical trials market, reflecting the growing demand for new therapies, advancements in medical technologies, and expanded research in emerging therapeutic areas. The surge in trials is fueled by rising investments in drug development, greater patient access through decentralized trials, and supportive regulatory frameworks.
The market is witnessing trends like increasing R&D investment and the growing use of AI and big data.
The market report offers a detailed analysis of the market based on the following segments:
Market Breakup by Phase
Market Breakup by Service Type
Market Breakup by Therapeutic Areas
Market Breakup by Application
Segmentation Based on Phase to Witness Substantial Growth
Based on the phase, the market is segmented into Phase I, Phase II, Phase III, and Phase IV clinical trials. Phase III hold a substantial market share, driven by the large number of studies required to secure regulatory approval for new drugs. Phase III trials often have the most participants, the largest budgets, and the longest duration, making them the dominant phase in the clinical trials lifecycle.
The key features of the market report comprise patent analysis, funding and investment analysis, and strategic initiatives by the leading players. The major companies in the market are as follows:
IQVIA, a leading global provider of clinical research services, is a key player in the U.S. clinical trials market. The company leverages its IQVIA CORE™ platform, which combines advanced analytics, real-world data, and technology to improve trial design, patient recruitment, and outcome prediction. IQVIA supports trials across all phases and therapeutic areas, including oncology and rare diseases.
Labcorp Drug Development is a leading CRO offering end-to-end drug development services and significantly contributes to the United States clinical trials market growth. It operates one of the largest clinical trial testing networks in the U.S., providing central laboratory services, biomarker discovery and validation, and companion diagnostics and precision medicine support. Labcorp’s central laboratory services are widely used in Phase I-IV trials, with a focus on ensuring accurate and timely lab data to meet regulatory requirements.
Parexel is a prominent CRO with expertise in regulatory consulting, clinical trial management, and real-world evidence generation. Its U.S. operations are central to supporting clinical trials for biopharmaceutical and biotech clients. Parexel’s Patient Innovation Center enhances patient recruitment and retention by using real-time insights and digital tools to make trials more accessible and inclusive.
Syneos Health is a fully integrated biopharmaceutical solutions provider playing a key role in the United States clinical trials market. By partnering with pharmaceutical and biotech companies, Syneos Health streamlines the clinical development process to accelerate the delivery of new therapies. It utilizes its Syneos One® platform, which integrates clinical and commercial services, enabling coordination from trial design through product launch.
*Please note that this is only a partial list; the complete list of key players is available in the full report. Additionally, the list of key players can be customized to better suit your needs.*
Other key players in the market include PPD (Part of Thermo Fisher Scientific), Charles River Laboratories, ICON plc, Covance, Clinilabs Drug Development Corporation, and Celerion.
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*While we strive to always give you current and accurate information, the numbers depicted on the website are indicative and may differ from the actual numbers in the main report. At Expert Market Research, we aim to bring you the latest insights and trends in the market. Using our analyses and forecasts, stakeholders can understand the market dynamics, navigate challenges, and capitalize on opportunities to make data-driven strategic decisions.*
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| REPORT FEATURES | DETAILS |
| Base Year | 2025 |
| Historical Period | 2019-2025 |
| Forecast Period | 2026-2035 |
| Scope of the Report |
Historical and Forecast Trends, Industry Drivers and Constraints, Historical and Forecast Market Analysis by Segment:
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| Breakup by Phase |
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| Breakup by Service Type |
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| Breakup by Therapeutic Areas |
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| Breakup by Application |
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| Market Dynamics |
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| Supplier Landscape |
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| Companies Covered |
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