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Trackers› Clinical trials› Izmir
Clinical trial register · Turkey

Clinical Trials in Izmir, 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
Ankara 91 Istanbul 69 Adana 42 Izmir 32 Bornova 20
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
AstraZeneca54 Ege University37 Janssen Research & Development, LLC34 Merck Sharp & Dohme LLC32 Izmir Katip Celebi University30 Clear sponsor filter
Site location
Ankara91 Istanbul69 Adana42 Izmir32 Bornova20
All 43 locations
Target enrolment
to

Trials with a site in Izmir

32 of 5418 studies
Download
Status
Study
Lead sponsor
Phase
Enrol
Sites in Turkey
Start
Recruiting
Merck Sharp & Dohme LLC
Phase 3
876
Adana, Ankara, Istanbul, Izmir, Kayseri
2026-05-04
Recruiting
Merck Sharp & Dohme LLC
Phase 3
758
Sıhhiye, Adana, Ankara, Edirne, Istanbul, Izmir
2026-04-09
Recruiting
Merck Sharp & Dohme LLC
Phase 3
477
Sıhhiye, Adana, Ankara, Diyarbakır, Istanbul, Izmir
2025-07-16
Recruiting
Merck Sharp & Dohme LLC
Phase 2
144
Izmir, Adana, Ankara, Istanbul
2025-05-28
Recruiting
Merck Sharp & Dohme LLC
Phase 1/2
50
Ankara, Izmir
2025-05-26
Recruiting
Merck Sharp & Dohme LLC
Phase 2
96
Adana, Ankara, Istanbul, Izmir
2025-05-13
Active, closed
Merck Sharp & Dohme LLC
Phase 2
60
Adana, Ankara, Antalya, Izmir, Samsun
2025-03-20
Active, closed
Merck Sharp & Dohme LLC
Phase 3
550
Adana, Ankara, Izmir
2024-06-11
Recruiting
Merck Sharp & Dohme LLC
Phase 3
851
Stanbul, Ankara, Izmir, Kayseri, Mersin, Samsun
2024-06-10
Active, closed
Merck Sharp & Dohme LLC
Phase 2
272
Ankara, Izmir
2024-04-10
Active, closed
Merck Sharp & Dohme LLC
Phase 1/2
230
Ankara, Istanbul, Izmir
2024-03-28
Active, closed
Merck Sharp & Dohme LLC
Phase 2
147
Adana, Ankara, Izmir
2023-12-26
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,314
Adana, Ankara, Istanbul, Izmir, Samsun
2023-12-18
Recruiting
Merck Sharp & Dohme LLC
Phase 3
1,200
Ankara, Antalya, Edirne, Istanbul, Izmir, Samsun
2023-12-13
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,089
Ankara, Istanbul, Izmir
2023-07-19
Recruiting
Merck Sharp & Dohme LLC
Phase 2/3
342
Ankara, Istanbul, Izmir
2023-05-31
Recruiting
Merck Sharp & Dohme LLC
Phase 1/2
230
Adana, Ankara, Erzurum, Istanbul, Izmir
2023-05-16
Active, closed
Merck Sharp & Dohme LLC
Phase 3
300
Stanbul, Suleymanpasa, Ankara, Istanbul, Izmir
2023-03-16
Active, closed
Merck Sharp & Dohme LLC
Phase 3
377
Ankara, Istanbul, Izmir, Kayseri, Malatya
2023-02-14
Active, closed
Merck Sharp & Dohme LLC
Phase 3
614
Ankara, Edirne, Istanbul, Izmir, Mersin
2023-02-06
Active, closed
Merck Sharp & Dohme LLC
Phase 3
460
Bornova, Adana, Ankara, Istanbul, Izmir
2022-03-24
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,800
Istanbul- Fatih, Adana, Ankara, Istanbul, Izmir
2022-03-15
Recruiting
Merck Sharp & Dohme LLC
Phase 2/3
290
Yenimahalle, Bornova, Ankara, Istanbul, Izmir, Samsun
2022-01-14
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,688
Ankara, Edirne, Istanbul, Izmir
2021-04-14
Recruiting
Efficacy and Safety of Nemtabrutinib (MK-1026) in Participants With Hematologic Malignancies (MK-1026-003)
NCT04728893Hematologic Malignancies, Waldenstroms Macroglobulinaemia, Non-Hodgkins Lymphoma, Chronic Lymphocytic Leukaemia
DrugNemtabrutinib
Merck Sharp & Dohme LLC
Phase 2
490
Stanbul, Ankara, Istanbul, Izmir
2021-04-05
Active, closed
Merck Sharp & Dohme LLC
Phase 3
990
Adana, Ankara, Istanbul, Izmir
2021-01-10
Active, closed
Merck Sharp & Dohme LLC
Phase 3
672
Ankara, Istanbul, Izmir
2020-12-08
Active, closed
Merck Sharp & Dohme LLC
Phase 3
870
Ankara, Istanbul, Izmir
2020-07-06
Active, closed
Merck Sharp & Dohme LLC
Phase 3
520
Ankara, Istanbul, Izmir, Trabzon
2020-05-19
Active, closed
Merck Sharp & Dohme LLC
Phase 3
755
Ankara, Edirne, Istanbul, Izmir
2020-02-27
Active, closed
Merck Sharp & Dohme LLC
Phase 3
1,397
Ankara, Eskişehir, Istanbul, Izmir, Konya
2018-12-24
Active, closed
Merck Sharp & Dohme LLC
Phase 2
329
Konya, Adana, Ankara, Antalya, Edirne, Istanbul, Izmir
2018-12-12
Rows per page Showing 1–32 of 32
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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/izmir

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 32 of those studies with a site in Izmir that also match the filters currently applied.

How many clinical trials are recruiting in Izmir?

13 of the 32 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, 19 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 (Izmir), 32 studies
PhaseStudiesRecruitingShare
Phase 320662.5%
Phase 27321.9%
Phase 1/2329.4%
Phase 2/3226.3%

Most active sponsors

Lead sponsors with the most studies (Izmir)
Lead sponsorStudiesRecruiting
Merck Sharp & Dohme LLC3213
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.