Go to www.google.com and search indeed.com. This website is highly recommendable to apply for clinical research jobs because it contains a lot of jobs and also has a quick apply feature. They also update these jobs every week.
When the website is found, go to search bar and search for desired job but do not forget to mention clinical research job to get desired suggestions for jobs of clinical research.
Now just scroll down and see what they have as they will show you multiple job suggestions. There will be both sponsored and non-sponsored jobs but be careful to apply for the sponsored jobs, not because they may have errors, just because of a lot of traffic applying for sponsored jobs. There are different clinical research companies offering jobs.
Different companies give easy application process because they want more candidates to apply. Save all those without opening them, this will boost your speed but you can also apply for others. This easy apply feature requires to create an account and when you have your account, upload your resumes.
Next thing to do is just to apply for all the easy apply jobs whether you are qualified for those or not. There are qualified, over-qualified and low qualified people but it is up to the recruiters to decide and qualify someone. Apply for the wide number of jobs whether you are fit or not but they have other vacancies and if you are a good candidate, they will interview you first on a phone call. By applying for different jobs and going through a lot of interviews, you will get better at it as practice makes a man not perfect but better. Apply for hundreds of jobs whether they are easy apply or not, sponsored or not, when you are without any experience. Now just wait for the recruiters to contact and response.