Effects of Rosemary Essential Oil on Human Cognition (Rosmarinus)
28. April 2026 aktualisiert von: Heloisa de Freitas Pacífico, Federal University of Paraíba
The Use of Rosmarinus Officinalis L. Essential Oil (Camphor and Cineol Chemotypes) in Cognition: a Randomized, Double-blind, Placebo-controlled Study
Aromatherapy is one of the complementary therapies that is carried out through essential oils.
The essential oil of Rosmarinus Officinalis L. (rosemary) has been gaining attention in aromatherapy research, as studies have shown that the use of this oil is one of the promising non-pharmacological therapies for cognition.
In this way, inhalation of rosemary essential oil is one of the forms of cognitive intervention across different age groups.
The study will aim to analyze the effect of rosemary essential oil, with the following chemotypes: camphor and cineole, on the cognitive performance of adults.
Significant differences are expected between the control (placebo) and experimental groups, given that studies in humans have already shown significant effects of rosemary essential oil on cognition.
Considering the inclusion and exclusion criteria of the study, participants will be allocated to either the control or experimental group.
Consequently, the application of the tests will be carried out neuropsychological tests for the pre-test evaluation, followed by aromatherapy (acute phase) and the reapplication of the tests (post-test phase 1).
For 14 days, the participants will chronically use rosemary essential oil and at the end they will participate in the reapplication of the neuropsychological tests (post-test phase 2).
For inferential analyses, the ANOVA test or its non-parametric equivalent will be used.
In addition, linear regressions may be performed to verify how much the essential oil can predict the outcome of the study's dependent variables.
Effect Size will also be calculated.
Keywords: Chronic intervention; neuropsychology; aromatherapy.
Studienübersicht
Status
Aktiv, nicht rekrutierend
Bedingungen
Intervention / Behandlung
Studientyp
Interventionell
Einschreibung (Tatsächlich)
63
Phase
- Unzutreffend
Kontakte und Standorte
Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.
Studienorte
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Paraíba
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João Pessoa, Paraíba, Brasilien, 58062-106
- Helô
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Teilnahmekriterien
Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
Akzeptiert gesunde Freiwillige
Ja
Beschreibung
Inclusion Criteria:
- 1a Healthy adults
- 1b should be able to inhale the essential oil
Exclusion Criteria:
- 2a Neurodegenerative diseases
- 2b Traumatic brain injury
- 2c Brain tumors
- 2d Multiple sclerosis
- 2e Epileptic seizures
- 2f Anxiety Disorder
- 2g Depressive Disorders,
- 2h Uncontrolled arterial hypertension,
- 2i nutritional deficiency or thyroid disease.
Studienplan
Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Sonstiges
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Doppelt
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
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Experimental: essential oil of Rosmarinus officinalis 1
Inhalation of 2 drops of rosemary camphor essential oil for 5 minutes, once a day for 1 week consecutive on a cotton pad followed
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oil essential
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Kein Eingriff: Placebo
Inhalation of 2 drops of sunflower essential oil for 5 minutes, once a day for 1 week consecutive on a cotton pad followed
|
|
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Aktiver Komparator: essential oil of Rosmarinus officinalis 2
Inhalation of 2 drops of rosemary cineol essential oil for 5 minutes, for once a day for 1 week consecutive on a cotton pad followed
|
oil essential
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
STROOP TEST
Zeitfenster: Cognitive tests were administered at the following stages: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
Unit of measurement: time (seconds)
|
Cognitive tests were administered at the following stages: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
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Subteste Digits of the Test WAIS-III - (Wechsler Adult Scale)
Zeitfenster: Cognitive tests were administered at the following stages: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
1a. Maximum raw score: 30 1b. Minimum raw score: 2 |
Cognitive tests were administered at the following stages: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
|
Subtest Number and Letter Sequence of the WAIS-III Test - (Wechsler Adult Scale)
Zeitfenster: Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
1.0 Measurement Units: raw score 1a. Maximum raw score: 21 1b. Minimum raw score: 0 |
Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
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Tower of London
Zeitfenster: Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
1.0 Measurement Units: raw score 1a. Maximum raw score: 46 1b. Minimum raw score: 0 |
Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
|
Token Test
Zeitfenster: Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
1.0 Measurement Units: raw score 1a. Maximum raw score: 36 1b. Minimum raw score: 0 |
Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
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Corsi Blocks
Zeitfenster: Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
1.0 Measurement Units: raw score 1a. Maximum raw score: 30 1b. Minimum raw score: 0 |
Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
|
Hopkins Verbal Learning
Zeitfenster: Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
1.0 Measurement Units: raw score 1a. Maximum raw score: 0 1b. Minimum raw score: 36 |
Cognitive test were administered at the following times: "Before the intervention (baseline), immediately after the intervention, and 1 week after the intervention."
|
Mitarbeiter und Ermittler
Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.
Sponsor
Studienaufzeichnungsdaten
Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.
Haupttermine studieren
Studienbeginn (Tatsächlich)
1. März 2025
Primärer Abschluss (Geschätzt)
1. Dezember 2026
Studienabschluss (Geschätzt)
31. Dezember 2026
Studienanmeldedaten
Zuerst eingereicht
13. April 2026
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
28. April 2026
Zuerst gepostet (Tatsächlich)
1. Mai 2026
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
1. Mai 2026
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
28. April 2026
Zuletzt verifiziert
1. April 2026
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Andere Studien-ID-Nummern
- 80434324.0.0000.5188
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Nein
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Nein
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