NCT04138537 is a NA clinical trial of OB volume in Acromegaly, sponsored by Bezmialem Vakif University.

Who is sponsoring NCT04138537?

NCT04138537 is sponsored by Bezmialem Vakif University.

What drugs are being tested in NCT04138537?

Interventions in NCT04138537: OB volume, CCCRC test.

What condition does NCT04138537 study?

NCT04138537 studies Acromegaly, Olfactory Disorder.

Is NCT04138537 still recruiting?

NCT04138537 is currently completed. Last updated 16 March 2020.

Last reviewed 2020-03-16 · How we verify

NCT04138537

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Olfactory Function and Olfactory Bulb Volume in Acromegaly Patients

Completed NA Last updated 16 March 2020

What this trial tests

NA trial testing OB volume in Acromegaly in 40 participants. Completed in 30 January 2020.

Timeline

15 August 2018

Primary endpoint
10 December 2019

30 January 2020

Quick facts

Lead sponsor	Bezmialem Vakif University
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	non randomized
Design	parallel
Masking	single
Primary purpose	other
Enrollment	40
Start date	15 August 2018
Primary completion	10 December 2019
Estimated completion	30 January 2020
Sites	1 location across Turkey (Türkiye)

Drugs / interventions tested

OB volume
CCCRC test

Conditions studied

Acromegaly — all drugs for Acromegaly →
Olfactory Disorder — all drugs for Olfactory Disorder →

Sponsor

Bezmialem Vakif University

Who can join

Adults 18 to 80, any sex, with Acromegaly or Olfactory Disorder. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

A prospective, controlled, single blinded study was planned. 20 patients with Acromegaly (Acromegaly Group) and 20 healthy subjects (Control Group) were planned to include in the study. Connecticut Chemosensory Clinical Research Center (CCCRC) test was applied to evaluate olfactory functions. Olfactory bulb(OB) volumes were measured with a 1.5 T General Electric Signa Excite MRI scanner.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

Changes in olfactory function and olfactory bulb after treatment for acromegaly.
Degirmenci N, Bektas H, Senturk E, Ilhan M, et al · · 2021 · PMID 33386970 · DOI 10.1007/s00405-020-06515-5

Verify or expand the search:

Other recruiting trials for Acromegaly

Currently open trials in the same condition.

NCT07037420 — ALXN2420 Versus Placebo in Combination With Somatostatin Analogs in Participants With Acromegaly · Phase 2 · recruiting
NCT05401084 — Diet in the Management of Acromegaly · NA · recruiting
NCT05131100 — Korean Regulatory Post Marketing Surveillance for Somavert · recruiting
NCT05964712 — Effects of Therapies in the Acromegaly Disease: Acral Morpho-functional Study · recruiting
NCT03158090 — The Longitudinal Approach to Acromegaly: A Pattern of Treatment and Comparative Effectiveness Research · recruiting

Other Bezmialem Vakif University trials

Trials by the same sponsor.

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NCT07433595 — Association Between Child and Parental Stress and Bruxism in Children Aged 8-11 Years · not yet recruiting
NCT07443111 — Comparison of Virtual Reality-Based and Routine Preoperative Education on Surgical Anxiety and Salivary Cortisol · NA · not yet recruiting
NCT07421349 — Comparison of Pulmonary Functions and Respiratory Muscle Strength Between Children With Hearing Impairment and Healthy P · not yet recruiting
NCT07414615 — Aerobic Training in Lower Extremity Lymphedema · NA · recruiting

Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT04138537 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Bezmialem Vakif University
Last refreshed: 16 March 2020

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT04138537.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing