The global Clinical Research Services Market size was estimated at USD 70.2 billion in 2021, growing at a CAGR of 10.2% during the forecast period 2021-2027. Clinical research is a branch of healthcare that studies whether a medical strategy, medicine, medical device, diagnostics and treatment regimes is safe and effective for human use. Clinical research may contribute to treatment, prevention, diagnosis or relieving certain symptoms of disease or condition. Clinical research is carried out with a pool of patients or people under study condition. Clinical research is a broad term which includes many research studies such as treatment, prevention, diagnostic, screening, genetic, epidemiological and clinical trial studies. Clinical research services market is at steady stage of growth. The market is expected to grow at a significant rate during the forecast period. Market players are expanding their markets by offering various services and collaborations. For instance in June 2017, PAREXEL International Corporation, a leading global biopharmaceutical services organization, collaborated with Sanofi to advance the use of wearable devices to transform the collection of data in clinical trials. Moreover, In order to maintain market position, companies adopting mergers and acquisitions as their key strategies. For instance, in May, 2017 and inVentiv Health, Inc. and INC Research Holdings, Inc., announced a definitive merger agreement to create a leading biopharmaceutical solutions organization. Similarly, in April 2016, Charles River Laboratories acquired WIL Research to enhance its global footprint, scientific capabilities, and access to growing market segments.