“What types of clinical studies must be registered in CTRI, including interventional trials, observational studies, bioavailability studies, and post-marketing surveillance?”

“Is registration of a purely observational study in CTRI mandatory, and what are the regulatory requirements or ethical considerations influencing this decision?”

“Why is it important to register clinical trials in CTRI, and how does it enhance transparency, accountability, and compliance with ethical and regulatory standards?”

“Who is responsible for registering a clinical trial in CTRI—principal investigator, sponsor, or institution—and what are the key steps in the registration process?”

“What is the Clinical Trials Registry – India (CTRI), and how does it facilitate the registration, transparency, and ethical oversight of clinical trials in India?”