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Priya Life Science Clinical trial register
Trackers› Clinical trials› Seyhan
Clinical trial register · Turkey

Clinical Trials in Seyhan, 2026

Every study on the ClinicalTrials.gov registry that lists a site in Turkey 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 5418 matching records held by the registry are in this view. Synced 11 Oct 2026, 03:18 UTC
5418
Studies in scope
all four open statuses
2461
Recruiting now
open to new participants
548
Lead sponsors
across recruiting studies
Top sites
Istanbul 1988 Ankara 1440 Izmir 568 Adana 377 Antalya 261
Narrow the registerReset
Recruitment status
Phase
Site location
Istanbul1988 Ankara1440 Izmir568 Adana377 Antalya261
All 318 locations
Target enrolment
to

Trials with a site in Seyhan

20 of 5418 studies
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Status
Study
Lead sponsor
Phase
Enrol
Sites in Turkey
Start
Recruiting
Hoffmann-La Roche
Phase 2
100
Ankara, Atakum, Istanbul, Izmir, Seyhan
2026-03-11
Recruiting
Hoffmann-La Roche
Phase 2
80
Bağcılar, Adana, Ankara, Seyhan
2026-02-18
Recruiting
AstraZeneca
Phase 3
1,100
Ankara, Erzurum, Istanbul, Konya, Seyhan
2025-12-04
Recruiting
Merck Sharp & Dohme LLC
Phase 3
675
Seyhan, Altindağ, Ankara, Edirne, Istanbul
2025-10-08
Recruiting
AstraZeneca
Phase 3
700
Ankara, Cordaleo, Diyarbakır, Istanbul, Izmir, Sakarya, Seyhan, Şahinbey
2025-08-06
Recruiting
CSL Behring
Phase 2
70
Adana, Ankara, Istanbul, Mezitli-Mersin, Seyhan, Seyhan/Adana, Yenişehir
2025-07-10
Recruiting
Seyhan District Health Directorate, Adana
Not applicable
60
Adana, Seyhan
2025-07-01
Recruiting
Regeneron Pharmaceuticals
Phase 2
297
Seyhan, Altındağ, Istanbul, Bornova, Gaziantep, Adana, Ankara, Izmir
2025-05-28
Recruiting
AstraZeneca
Phase 3
1,160
Ankara, Antalya, Edirne, Izmir, Seyhan
2024-11-27
Active, closed
Amgen
Phase 3
315
Seyhan, Keçiören, Yenimahalle, İskender, Atakum, Adana, Ankara, Bursa
2024-09-09
Recruiting
AstraZeneca
Phase 3
582
Adapazarı, Ankara, Goztepe Istanbul, Izmir, Küçükçekmece, Seyhan
2024-04-29
Recruiting
Hoffmann-La Roche
Phase 3
230
Adapazarı, Ankara, Bakirkoy / Istanbul, Diyarbakır, Istanbul, Izmir, Seyhan, Sihhiye/Ankara
2023-09-08
By invitation
A Study to Provide Access to Mitapivat for Participants Who Previously Participated in an Agios-Sponsored Mitapivat Study
NCT05777993Pyruvate Kinase Deficiency, Anemia, Hemolytic, Sickle Cell Disease, Thalassemia
Agios Pharmaceuticals, Inc.
Phase 4
59
Seyhan
2023-07-06
Recruiting
Forma Therapeutics, Inc.
Phase 2
95
Ankara, Seyhan
2023-01-12
Active, closed
Daiichi Sankyo
Phase 3
1,170
Ankara, Antalya, Bağcılar, Bornova-Izmir, Cankaya/Ankara, Etimesgut Ankara, Istanbul, Seyhan
2023-01-11
Active, closed
Agios Pharmaceuticals, Inc.
Phase 2/3
286
Ankara, Seyhan
2022-02-11
Active, closed
Jazz Pharmaceuticals
Phase 3
920
Ankara, Edirne, Izmir, Seyhan, Trabzon, Yenimahalle
2021-12-02
Active, closed
Gilead Sciences
Phase 2
502
Ankara, Diyarbakır, Edrine, Istanbul, Izmir, Seyhan
2018-08-13
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Cite this view

Priya Life Science (2026). Clinical trial register: studies with a Turkish investigative site, filtered. Derived from ClinicalTrials.gov. Retrieved 12 October 2026. https://priyalifescience.com/clinical-trials-turkey/city/seyhan

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 Turkey and is recruiting, not yet recruiting, active but no longer recruiting, or enrolling by invitation: 5,418 studies in total at the last sync on 11 Oct 2026, 03:18 UTC. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 20 of those studies with a site in Seyhan.

How many clinical trials are recruiting in Seyhan?

14 of the 20 studies on this page are recruiting new participants as of the 11 Oct 2026, 03:18 UTC sync. A further 0 have not yet opened recruitment, 5 are active but closed to new participants, and 1 are enrolling by invitation only. Eligibility for any study is decided by its study team.

Summary by phase

Studies by phase (Seyhan), 20 studies
PhaseStudiesRecruitingShare
Phase 311855%
Phase 26530%
Not applicable115%
Phase 2/3105%
Phase 4105%

Most active sponsors

Lead sponsors with the most studies (Seyhan)
Lead sponsorStudiesRecruiting
AstraZeneca44
Hoffmann-La Roche44
Agios Pharmaceuticals, Inc.20
CSL Behring22
Amgen10
Daiichi Sankyo10
Forma Therapeutics, Inc.11
Gilead Sciences10
Jazz Pharmaceuticals10
Merck Sharp & Dohme LLC11
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.