NCT04320446 is a NA clinical trial of Test in the morning in Energy Metabolism, sponsored by Universidad de Granada.

Who is sponsoring NCT04320446?

NCT04320446 is sponsored by Universidad de Granada.

What drugs are being tested in NCT04320446?

Interventions in NCT04320446: Test in the morning, Test in the afternoon.

What condition does NCT04320446 study?

NCT04320446 studies Energy Metabolism, Athletic Performance.

Is NCT04320446 still recruiting?

NCT04320446 is currently completed. Last updated 25 March 2020.

Last reviewed 2020-03-25 · How we verify

NCT04320446

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

Caffeine Increases Maximal Fat Oxidation During Exercise in Endurance-trained Men: is There a Diurnal Variation

Completed NA Last updated 25 March 2020

What this trial tests

NA trial testing Test in the morning in Energy Metabolism in 15 participants. Completed in 30 November 2019.

Timeline

1 June 2019

Primary endpoint
30 November 2019

30 November 2019

Quick facts

Lead sponsor	Universidad de Granada
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	crossover
Masking	triple
Primary purpose	other
Enrollment	15
Start date	1 June 2019
Primary completion	30 November 2019
Estimated completion	30 November 2019
Sites	1 location across Spain

Drugs / interventions tested

Test in the morning
Test in the afternoon

Conditions studied

Energy Metabolism — all drugs for Energy Metabolism →
Athletic Performance — all drugs for Athletic Performance →

Sponsor

Universidad de Granada — full company profile →

Who can join

Adults 18 to 40, male only, with Energy Metabolism or Athletic Performance. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Maximal fat oxidation during exercise (MFO) and the intensity of exercise that elicits MFO (Fatmax) has been recognized as potential determinants of endurance performance. The purpose of this study was to determine the possible interaction between the effects of diurnal variation (morning vs. afternoon) and caffeine ingestion on MFO, Fatmax and VO2 max in endurance-trained men. Specifically, the investigators sought to elucidate whether the stimulant actions of caffeine could reverse the decrements of MFO and Fatmax observed in the morning.

Publications & conference data

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

Caffeine increases maximal fat oxidation during a graded exercise test: is there a diurnal variation?
Ramírez-Maldonado M, Jurado-Fasoli L, Del Coso J, R Ruiz J, et al · · 2021 · cited 25× · PMID 33413459 · DOI 10.1186/s12970-020-00400-6

Verify or expand the search:

Other recruiting trials for Energy Metabolism

Currently open trials in the same condition.

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NCT07056504 — Technologies and Systems for Assessing Human Energy Metabolism and Nutritional Rehabilitation · recruiting
NCT07478211 — Menstrual Cycle Mapping While Using Closed-Loop Insulin Delivery · recruiting
NCT05736302 — Validating a New Machine-Learned Accelerometer Algorithm Using Doubly Labeled Water · recruiting
NCT06483542 — Bionenergetic Balance During CVVH · active not recruiting

Other Universidad de Granada trials

Trials by the same sponsor.

NCT07497698 — Saffron Extract Supplementation and Sleep Quality in Middle-Aged Adults · NA · recruiting
NCT07528924 — TuJugling: Comparing Two Juggling Learning Methods in College Students · NA · recruiting
NCT07388134 — Virtual Reality Based High-intensity Interval Training in Chronic Low Back Pain · NA · active not recruiting
NCT07494916 — Effects of Functional Task Training on Muscle Health and Function in Older Adults With Sarcopenia · NA · active not recruiting
NCT06518200 — Preventing Breast Cancer Therapy-related Cardiovascular Toxicity With a Daily-adapted Program With Mhealth Support · NA · not yet 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 NCT04320446 (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 Universidad de Granada
Last refreshed: 25 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/NCT04320446.

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