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Trackers› Clinical trials› Kolkata
Clinical trial register · India

Clinical Trials in Kolkata, 2026

Every study on the ClinicalTrials.gov registry that lists a site in India and is open, about to open, active-but-closed, or enrolling by invitation. Filter it, cite it, and take it away as a file.

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Source: ClinicalTrials.gov, U.S. National Library of Medicine. Complete coverage — all 1120 matching records held by the registry are in this view. Synced 07 Nov 2026, 03:16 UTC
1120
Studies in scope
all four open statuses
608
Recruiting now
open to new participants
218
Lead sponsors
across recruiting studies
Top sites
Kolkata 54 Delhi 41 Bangalore 41 New Delhi 39 Hyderabad 37
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
AstraZeneca54 Bristol-Myers Squibb12 Pfizer12 Janssen Research & Development, LLC11 Novartis Pharmaceuticals6 Clear sponsor filter
Site location
Kolkata54 Delhi41 Bangalore41 New Delhi39 Hyderabad37
All 80 locations
Target enrolment
to

Trials with a site in Kolkata

54 of 1120 studies
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Status
Study
Lead sponsor
Phase
Enrol
Indian sites
Start
Not yet open
AstraZeneca
Phase 3
330
Ansārinagar, Calicut, Kolkata, Ludhiana, Meerut, Surat
2027-01-04
Recruiting
AstraZeneca
Phase 3
1,072
Hyderabad, Kolkata, New Delhi, Pune
2026-08-31
Recruiting
AstraZeneca
Phase 3
1,500
Bangalore, Indore, Kolkata, Nagpur, Noida, Pune, Siliguri, Visakhapatnam
2026-08-20
Recruiting
AstraZeneca
Phase 3
2,500
Bhubaneswar, Coimbatore, Hyderabad, Indore, Jaipur, Jodhpur, Kochi, Kolkata
2026-08-19
Recruiting
AstraZeneca
Phase 3
915
Kolkata, Kottayam, Nashik, Navi Mumbai, New Delhi
2026-07-16
Recruiting
AstraZeneca
Phase 3
2,130
Ahmedabad, Bhubaneswar, Hyderabad, Kolkata, Mohali, Mumbai, New Delhi, Varanasi
2026-02-03
Recruiting
AstraZeneca
Phase 3
1,100
Bhubaneswar, Chennai, Delhi, Dhanvantari Nagar, Kolkata, Nagpur, Nashik, Surat
2025-12-29
Active, closed
AstraZeneca
Not applicable
21
Hyderabad, Jhānsi, Kanpur, Kolkata, Mysore, Nagpur, Pune, Vidyanagar, Hubballi
2025-12-10
Recruiting
AstraZeneca
Phase 3
1,100
Delhi, Hyderabad, Kolhāpur, Kolkata, Mumbai, Nashik, Surat
2025-12-04
Recruiting
AstraZeneca
Phase 3
400
Bangalore, Kolkata, Mumbai, Nashik, New Delhi
2025-10-31
Active, closed
AstraZeneca
Phase 3
212
Belagavi, Delhi, Hyderabad, Kolkata, Mumbai
2025-08-07
Recruiting
AstraZeneca
Phase 3
5,000
Bangalore, Belagavi, Hyderabad, Kolkata, Madurai, Mumbai, New Delhi, Pune
2025-03-03
Recruiting
AstraZeneca
Phase 3
840
Ansārinagar, Bangalore, Delhi, Hyderabad, Kolkata, Mumbai, Varanasi
2025-03-01
Recruiting
AstraZeneca
Phase 3
1,160
Calicut, Delhi, Gūrgaon, Kolkata, Madurai, Mumbai, Nashik, New Delhi
2024-11-27
Recruiting
AstraZeneca
Phase 3
1,160
Calicut, Delhi, Gūrgaon, Kolkata, Madurai, Mumbai, Nagpur, Nashik
2024-11-18
Recruiting
AstraZeneca
Phase 3
620
Dehradun, Delhi, Kanpur, Kolkata, Mumbai, Vadodara, Varanasi
2024-08-12
Recruiting
AstraZeneca
Phase 3
1,018
Delhi, Gurugram, Kolkata, Nashik, Surat, Thiruvananthapuram
2024-08-07
Recruiting
AstraZeneca
Phase 3
788
Delhi, Kolkata, Lucknow, Mumbai, Mysuru, Nagpur, Nashik, New Delhi
2024-08-01
Recruiting
AstraZeneca
Phase 3
240
Ahmedabad, Bangalore, Dehradun, Delhi, Gurugram, Hyderabad, Kolkata, Lucknow
2024-06-20
Recruiting
AstraZeneca
Phase 3
582
Bangalore, Delhi, Hyderabad, Kolkata, Mysuru, Nagpur, Nashik, New Delhi
2024-04-29
Recruiting
AstraZeneca
Phase 3
675
Chennai, Dwārka, Jaipur, Kolkata, Marg Jaipur, Nagpur, Nashik, New Delhi
2024-04-11
Active, closed
AstraZeneca
Phase 3
2,554
Bangalore, Belagavi, Calicut, Chennai, Coimbatore, Dehradun, Hyderabad, Kolkata
2024-03-29
Recruiting
AstraZeneca
Phase 3
1,145
Bengaluru, Hyderabad, Jaipur, Kanpur, Kochi, Kolkata, Lucknow, Madurai
2023-12-14
Active, closed
AstraZeneca
Phase 3
760
Delhi, Kolkata, Mumbai, Mysuru, New Delhi, Varanasi
2023-12-04
Recruiting
AstraZeneca
Phase 3
625
Calicut, Chennai, Jaipur, Kochi, Kolkata, Kottayam, Marg Jaipur, Mohali
2023-11-23
Active, closed
AstraZeneca
Phase 3
1,898
Bangalore, Calicut, Kanpur, Kolkata, Nagpur, New Delhi, Pune, Vadodara
2023-11-21
Active, closed
AstraZeneca
Phase 3
1,902
Bengaluru, Delhi, Kolkata, Marg Jaipur, Nagpur, Nashik, Thiruvananthapuram, Vadodara
2023-11-14
Active, closed
AstraZeneca
Phase 3
314
Ahmedabad, Delhi, Gurugram, Hyderabad, Kolkata, Mumbai, Mysuru, New Delhi
2023-11-08
Active, closed
AstraZeneca
Phase 3
895
Bengaluru, Hyderabad, Kolkata, Mysuru, Nagpur, Varanasi
2023-10-24
Active, closed
AstraZeneca
Phase 3
5,511
Ansārinagar, Bangalore, Dehradun, Delhi, Kolkata, Kozhikode, Mumbai, Mysuru
2023-10-05
Active, closed
AstraZeneca
Observational
712
Gurugram, New Delhi, Hyderabad, Bangalore, Chennai, Kolkata, Mumbai, Pune
2023-04-20
Recruiting
AstraZeneca
Phase 3
4,300
Bangalore, Belagavi, Bhubaneswar, Hubli, Hyderabad, Jaipur, Kolkata, Mumbai
2023-03-31
Active, closed
AstraZeneca
Phase 3
1,350
Calicut, Delhi, Jaipur, Kolkata, Madurai, Puducherry
2022-12-29
Active, closed
AstraZeneca
Phase 3
644
Bangalore, Jaipur, Kolkata, Nagpur, Nashik, New Delhi, Puducherry, Vadodara
2022-05-16
Active, closed
AstraZeneca
Phase 3
760
Ahmedabad, Bangalore, Delhi, Hyderabad, Jaipur, Kolkata, Mumbai, New Delhi
2022-03-28
Active, closed
AstraZeneca
Phase 3
791
Ahmedabad, Bangalore, Delhi, Howrah, Hyderabad, Jaipur, Kolkata, Marg Jaipur
2022-02-18
Active, closed
AstraZeneca
Phase 3
363
Ahmedabad, Dehradun, Delhi, Hyderabad, Kolkata, Nadiād, Pune, Secunderabad
2022-02-15
Active, closed
AstraZeneca
Phase 3
732
Gūrgaon, Howrah, Hyderabad, Jaipur, Kolkata, Nashik, Surat, Visakhapatnam
2021-10-18
Active, closed
D9319C00001- 1L OC Mono Global RCT
NCT04884360Ovarian Cancer
DrugOlaparib
AstraZeneca
Phase 3
366
Gūrgaon, Jaipur, Kolkata, Madurai, Namakkal, Nashik, New Delhi
2021-05-31
Active, closed
AstraZeneca
Phase 3
1,371
Ahmedabad, Calicut, Delhi, Faridabad, Gūrgaon, Karamsad, Kolkata, Madurai
2021-01-28
Active, closed
A Phase 2 Study of T-DXd in Patients With Selected HER2 Expressing Tumors
NCT04482309Part 1: Bladder, Biliary Tract, Cervical, Endometrial, Ovarian, Pancreatic Cancer, Rare Tumors, Any Tumor Type Excluding Breast, Gastric, Colorectal Cancer, Part 2: HER2 Expressing/Amplified Solid Tumors Excluding Breast, Gastric, Colorectal Cancer
DrugTrastuzumab deruxtecan
AstraZeneca
Phase 2
477
Delhi, Gūrgaon, Kolkata, Mumbai
2020-08-18
Active, closed
AstraZeneca
Phase 3
866
Bengaluru, Calicut, Kolkata, Marg Jaipur, New Delhi, Surat, Thiruvananthapuram
2020-07-24
Active, closed
AstraZeneca
Phase 3
1,012
Ahmedabad, Bangalore, Delhi, Faridabad, Kanpur, Kolkata, Madurai, Manipal
2020-07-13
Active, closed
AstraZeneca
Phase 3
587
Belagavi, Bengaluru, Gūrgaon, Kolkata, New Delhi, Pune
2019-07-02
Active, closed
AstraZeneca
Phase 3
923
Bangalore, Gūrgaon, Kolkata, Mumbai, Mysuru, Nagpur, Nashik, New Delhi
2019-06-25
Active, closed
AstraZeneca
Phase 3
810
Gūrgaon, Kolkata, Mumbai, New Delhi
2019-04-16
Active, closed
AstraZeneca
Phase 2
367
Bangalore, Chennai, Kolkata, New Delhi
2019-01-09
Active, closed
AstraZeneca
Phase 3
825
Ahmedabad, Gūrgaon, Kolkata, Manipal, Mumbai, Mysuru, Namakkal, Nashik
2018-12-06
Active, closed
AstraZeneca
Phase 3
724
Bangalore, Bengaluru, Hyderabad, Kolkata, Madurai, Mumbai, Nashik, Pune
2018-11-30
Active, closed
AstraZeneca
Phase 3
407
Bangalore, Bengaluru, Karamsad, Kolkata, Nashik, Vadodara
2018-11-27
Active, closed
AstraZeneca
Phase 3
1,246
Gūrgaon, Hubli, Kolkata, Mysuru, Nagpur, Nashik, New Delhi, Pune
2018-09-27
Active, closed
AstraZeneca
Phase 3
216
Bangalore, Gūrgaon, Hubli, Karamsad, Kolkata, Nashik, New Delhi
2018-07-19
Recruiting
iCaReMe Global Registry: Multinational Real-world Evidence in Cardiorenal and Metabolic Diseases
NCT03549754Type 2 Diabetes, Hypertension, Chronic Kidney Disease, Heart Failure
AstraZeneca
Observational
35,000
Ahmedabad, Kolkata, Mumbai
2018-02-17
Active, closed
AstraZeneca
Phase 3
736
Ansārinagar, Bhopal, Hyderabad, Jaipur, Kolkata, Manipal, Marg Jaipur, Mumbai
2005-02-13
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Cite this view

Priya Life Science (2026). Clinical trial register: studies with an Indian investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 7 November 2026. https://priyalifescience.com/clinical-trials-india/city/kolkata

Query this register directly
GET /api/trials?country=in&status=recruiting&format=json Try it now →

About this register

This register is built from ClinicalTrials.gov, the trial registry run by the U.S. National Library of Medicine. It includes every study on the registry that lists at least one investigative site in India and is recruiting, not yet recruiting, active but no longer recruiting, or enrolling by invitation: 1,120 studies in total at the last sync on 07 Nov 2026, 03:16 UTC. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 54 of those studies with a site in Kolkata that also match the filters currently applied.

How many clinical trials are recruiting in Kolkata?

22 of the 54 studies on this page are recruiting new participants as of the 07 Nov 2026, 03:16 UTC sync. A further 1 have not yet opened recruitment, 31 are active but closed to new participants, and 0 are enrolling by invitation only. Eligibility for any study is decided by its study team.

Summary by phase

Studies by phase (Kolkata), 54 studies
PhaseStudiesRecruitingShare
Phase 3492190.7%
Observational213.7%
Phase 2203.7%
Not applicable101.9%

Most active sponsors

Lead sponsors with the most studies (Kolkata)
Lead sponsorStudiesRecruiting
AstraZeneca5422
Listing here is informational and not medical advice; eligibility is determined by each study team. See also the Ireland, UK, EU, USA and China registers.