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Trackers› Clinical trials› Obesity
Clinical trial register · Turkey

Obesity Trials in Turkey, 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 5443 matching records held by the registry are in this view. Synced 10 Nov 2026, 03:18 UTC
5443
Studies in scope
all four open statuses
2494
Recruiting now
open to new participants
547
Lead sponsors
across recruiting studies
Top sites
Istanbul 19 Ankara 9 Adana 8 Antalya 6 Kayseri 5
Narrow the registerReset
Recruitment status
Phase
Lead sponsor
Novo Nordisk A/S8 Eli Lilly and Company3 Pamukkale University2 Amgen2 Istanbul Saglik Bilimleri University2 Hatice Zehra FERHATLAR1 Özlem ÖZPAK AKKUŞ1 Istanbul University1 Istanbul Aydın University1 Sakarya University1 Cumhuriyet University1 Ankara Etlik City Hospital1 Sıdıka Ece Yokuş1 Kocaeli University1 Elazıg Fethi Sekin Sehir Hastanesi1 TC Erciyes University1 Kocaeli City Hospital1 Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey1 Marmara University1 Istanbul Galata University1 Atlas University1 Bilecik Seyh Edebali Universitesi1 Elif Kabasakal1 Kutahya Health Sciences University1 Istanbul Medipol University Hospital1 Havva Talay Çalış1 Marmara University Pendik Training and Research Hospital1
Site location
Istanbul19 Ankara9 Adana8 Antalya6 Kayseri5 Bursa4 Yuregir/Adana4 Denizli4 Afyonkarahisar4 Yıldırım/Bursa3 Sivas3 Kocaeli3 Eskişehir3 Merkez/Battalgazi/Malatya3 Diyarbakır2 Gaziantep2 Bahçelievler/İstanbul2 Çankaya/Ankara2 Izmir2 Alanya/ Antalya2 Maltepe/İstanbull2 Merkez/Çorum2 Yenimahalle / Ankara2 Zeytinburnu/İstanbul2 Kadıköy1 Samsun1 Edirne1 Fatih/İstanbul1 Adana /yüreği̇r1 Battalgazi / Malatya1 Pendik/istanbul1 Yüreğir/Adana1 Sultangazi1 Hatay1 Sakarya1 Manisa1 Elâzığ1 Çorum1 Adapazarı/Sakarya1 Altınordu/Ordu1 Bayraklı/İzmir1 Altındağ/Ankara1 Kepez/Çanakkale Merkez/Çanakkale1 Trabzon Merkez/Ortahisar/Trabzon1 Adapazarı/Turkiye1 Çanakkale/Türkiye1 Bilecik1 Aydin1 Balçova1 Bornova1 Kütahya1
All 51 locations
Target enrolment
to

Obesity trials in Turkey

39 of 5443 studies
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Status
Study
Lead sponsor
Phase
Enrol
Sites in Turkey
Start
Not yet open
Cumhuriyet University
Not applicable
52
Sivas
2026-12-15
Not yet open
Eli Lilly and Company
Phase 3
3,000
Adana, Ankara, Antalya, Diyarbakır, Eskişehir, Istanbul, Kayseri, Kocaeli
2026-12
Recruiting
Pamukkale University
Not applicable
30
Denizli
2026-11-09
Not yet open
Novo Nordisk A/S
Phase 3
8,500
Istanbul, Kayseri, Adana, Adapazarı/Turkiye, Afyonkarahisar, Ankara, Çanakkale/Türkiye, Eskişehir
2026-10-26
Recruiting
Pamukkale University
Not applicable
50
Denizli
2026-09-26
Recruiting
VC-AF vs FCV in Obese Patients Undergoing Laparoscopic Surgery
NCT07875530Anesthesia, Mechanical Ventilation, Obesity
Kocaeli University
Observational
78
Kocaeli
2026-09-21
Not yet open
NAION in Non-Diabetic Obese Patients Using GLP-1 Receptor Agonists: A Real-World Study
NCT07846956Non-arteritic Anterior Ischemic Optic Neuropathy Obesity, Obesity
Istanbul Saglik Bilimleri University
Observational
28
Istanbul
2026-09-21
Recruiting
Comparison of Segmental Body Composition Characteristics in Lipedema and Obesity
NCT07878299Lipedema, Obesity, Body Mass Index, Bioelectrical Impedance Analysis
Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
Observational
200
Istanbul
2026-09-20
Active, closed
Marmara University
Observational
30
Istanbul
2026-09-07
Not yet open
Sakarya University
Not applicable
54
Sakarya
2026-09
Not yet open
Salivary Function and Dental Changes During GLP-1 Therapy
NCT07720466Obesity, Dental Erosion, Saliva Collection, Saliva Altered
Bilecik Seyh Edebali Universitesi
Observational
40
Bilecik
2026-08-17
Not yet open
Eating Behavior, Nutritional Status and Appetite Hormones After Bariatric Surgery
NCT07636239Obesity, Bariatric Surgery, Laparoscopic Sleeve Gastrectomy, Eating Behavior
Özlem ÖZPAK AKKUŞ
Observational
40
Bursa
2026-07-01
Recruiting
TC Erciyes University
Observational
60
Kayseri
2026-06-01
Recruiting
Istanbul Saglik Bilimleri University
Observational
42
Istanbul
2026-05-30
Not yet open
Novo Nordisk A/S
Phase 3
1,000
Adana /yüreği̇r, Ankara, Battalgazi / Malatya, Istanbul, Pendik/istanbul, Sivas, Yüreğir/Adana
2026-05-20
Recruiting
Novo Nordisk A/S
Phase 3
5,610
Adana, Adapazarı/Sakarya, Afyonkarahisar, Altınordu/Ordu, Ankara, Antalya, Bayraklı/İzmir, Bursa
2026-05-11
Recruiting
Novo Nordisk A/S
Phase 3
300
Alanya/ Antalya, Maltepe/İstanbull, Merkez/Battalgazi/Malatya, Merkez/Çorum, Yenimahalle / Ankara, Yuregir/Adana, Yıldırım/Bursa, Zeytinburnu/İstanbul
2026-05-05
Recruiting
Novo Nordisk A/S
Phase 3
300
Alanya/ Antalya, Maltepe/İstanbull, Merkez/Battalgazi/Malatya, Merkez/Çorum, Yenimahalle / Ankara, Yuregir/Adana, Yıldırım/Bursa, Zeytinburnu/İstanbul
2026-05-05
Recruiting
Novo Nordisk A/S
Phase 3
400
Bahçelievler/İstanbul, Çankaya/Ankara, Edirne, Fatih/İstanbul, Yuregir/Adana, Yıldırım/Bursa
2026-04-20
Recruiting
Novo Nordisk A/S
Phase 3
400
Altındağ/Ankara, Bahçelievler/İstanbul, Çankaya/Ankara, Kepez/Çanakkale Merkez/Çanakkale, Merkez/Battalgazi/Malatya, Trabzon Merkez/Ortahisar/Trabzon, Yuregir/Adana
2026-04-13
Recruiting
Sarcopenia Indicators After Bariatric Surgery
NCT07717333Obesity, Sarcopenia, Bariatric Surgery
Hatice Zehra FERHATLAR
Observational
80
Istanbul
2026-04-10
Recruiting
Ocular Changes in Patients Using Tirzepatide or Semaglutide
NCT07924618Type 2 Diabetes Mellitus, Obesity
DrugsTirzepatide·Semaglutide
Istanbul University
Observational
40
Istanbul
2026-03-01
Recruiting
Flow-Controlled Versus Volume-Controlled Ventilation in Bariatric Surgery
NCT07430111Obesity, Bariatric Surgery, Mechanical Ventilation
Ankara Etlik City Hospital
Not applicable
40
Ankara
2026-02-24
Not yet open
Havva Talay Çalış
Not applicable
42
Kayseri
2026-02-01
Not yet open
Istanbul Galata University
Not applicable
48
Istanbul
2025-12-29
Not yet open
Effect of TAP Block on GI Function After Sleeve Gastrectomy Using PRO-diGI Scale and Perlas Score
NCT07168538Obesity, Postoperative Gastrointestinal Dysfunction
Elazıg Fethi Sekin Sehir Hastanesi
Observational
60
Elâzığ
2025-09-01
Recruiting
Sıdıka Ece Yokuş
Not applicable
36
Manisa
2025-08-14
Active, closed
Amgen
Phase 3
12,800
Adana, Afyonkarahisar, Ankara, Antalya, Bursa, Denizli, Istanbul, Izmir
2025-07-25
Not yet open
Kocaeli City Hospital
Observational
77
Kocaeli
2025-07-22
Recruiting
Maridebart Cafraglutide in Heart Failure With Preserved or Mildly Reduced Ejection Fraction and Obesity
NCT07037459Heart Failure With Preserved Ejection Fraction, Heart Failure With Mildly Reduced Ejection Fraction, Obesity
DrugMaridebart cafraglutide
Amgen
Phase 3
5,056
Adana, Afyonkarahisar, Ankara, Çorum, Eskişehir, Istanbul, Izmir, Kayseri
2025-06-25
Recruiting
Elif Kabasakal
Not applicable
36
Istanbul
2025-05-10
Recruiting
Vestibular Function in Obesity
NCT07033221Obesity, Vestibular Function Disorder, Balance Assessment, Balance Impairment
Istanbul Aydın University
Observational
30
Istanbul
2025-04-05
Recruiting
Executive Function in Obese
NCT06578091Obesity
Kutahya Health Sciences University
Observational
100
Kütahya
2025-01-30
Recruiting
Modified Thoracoabdominal Nerve Plane Block In Laparoscopic Sleeve Gastrectomy
NCT06515691Obesity, Bariatric Surgery, Laparoscopic Sleeve Gastrectomy, Acute Post Operative Pain
Istanbul Medipol University Hospital
Not applicable
60
Istanbul
2025-01-03
Active, closed
Marmara University Pendik Training and Research Hospital
Not applicable
70
Istanbul
2025-01-01
Active, closed
EFFECTS OF OLEUROPEIN ON BLOOD PARAMETERS AND INFLAMMATORY MARKERS IN ADULTS WITH METABOLIC SYNDROME
NCT06673914Metabolic Syndrome, Insulin Resistance, Obesity, Abdominal, Obesity
Atlas University
Not applicable
34
Istanbul
2024-11-01
Active, closed
Eli Lilly and Company
Phase 2
414
Kadıköy, Adana, Antalya, Bursa, Diyarbakır, Gaziantep, Istanbul, Samsun
2023-09-21
Active, closed
Novo Nordisk A/S
Phase 3
3,400
Ankara, Sultangazi, Adana, Antalya, Hatay, Istanbul, Sivas
2022-11-01
Active, closed
Eli Lilly and Company
Phase 3
15,374
Adana, Ankara, Antalya, Aydin, Balçova, Bornova, Denizli, Gaziantep
2022-10-11
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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 November 2026. https://priyalifescience.com/clinical-trials-turkey/condition/obesity

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: 5,443 studies in total at the last sync on 10 Nov 2026, 03:18 UTC. The full list can be downloaded as CSV or queried as JSON through the register API.

This page shows the 39 of those studies listing the condition Obesity.

How many Obesity trials are recruiting in Turkey?

20 of the 39 studies on this page are recruiting new participants as of the 10 Nov 2026, 03:18 UTC sync. A further 12 have not yet opened recruitment, 7 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 (Obesity), 39 studies
PhaseStudiesRecruitingShare
Observational14835.9%
Not applicable12630.8%
Phase 312630.8%
Phase 2102.6%

Most active sponsors

Lead sponsors with the most studies (Obesity)
Lead sponsorStudiesRecruiting
Novo Nordisk A/S85
Eli Lilly and Company30
Amgen21
Istanbul Saglik Bilimleri University21
Pamukkale University22
Ankara Etlik City Hospital11
Atlas University10
Bilecik Seyh Edebali Universitesi10
Cumhuriyet University10
Elazıg Fethi Sekin Sehir Hastanesi10
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.