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Sore ThroatEarly Phase 1NCT06811051

Effect of Clove Oil and Menthol Lozenges on Post-extubation Sore Throat

A Early Phase 1 study testing Menthol lozenge and Clove lozenge in people with Sore Throat, run by Atlas University at 2 sites in Turkey (Türkiye).

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

In patients undergoing surgical intervention, endotracheal intubation, which is a part of the anesthesia procedure, can cause postoperative sore throat in patients. This situation causes difficulty in swallowing, inadequate nutrition and fluid intake, and prolongs the recovery process. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Sore Throat
What is being tested?
Menthol lozenge and Clove lozenge
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
150 participants
Where
2 sitesTurkey (Türkiye)
Study dates
25 Jan 2025to 15 Nov 2025
Phase
Early Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Being between the ages of 18-65. Having had abdominal surgery. Being extubated within the first 8 hours after surgery. ASA class I-III. Mallampati class I-II. Glasgow Coma Scale (GCS) score 15

Who cannot join

  • History of allergies.
  • Severe nausea and vomiting.
  • Being extubated after the first 8 hours after surgery.
  • Communication disorders
  • Mallampati class III-IV.
  • Glasgow Coma Scale (GCS) score <15

Trial locations and contacts

2 sites in 1 country.

Turkey (Türkiye)2 sites
  • İstanbul Atlas University

    Istanbul, Kağıthane

  • Bakirkoy Dr. Sadi Konuk Training and Research Hospital

    Istanbul, 34147

Other trials in Turkey (Türkiye)

About this study

Official title: Effects of Clove Oil and Menthol-containing Lozenges in Preventing Post-extubation Sore Throat in Patients Undergoing Surgical Intervention

In patients undergoing surgical intervention, endotracheal intubation, which is a part of the anesthesia procedure, can cause postoperative sore throat in patients. This situation causes difficulty in swallowing, inadequate nutrition and fluid intake, and prolongs the recovery process. In addition, sore throat is defined as a source of physical stress, which can lead to an increase in the incidence of postoperative morbidity and a decrease in patient satisfaction. This study aimed to investigate the effect of menthol and clove oil lozenges on sore throat after surgery. Our aim was to provide evidence on the effectiveness of simple, low-cost menthol and clove oil lozenges in reducing sore throat after extubation, thus helping the patient recover.

Read the detailed description

This study aimed to investigate the effect of menthol and clove oil lozenges on sore throat in patients after surgery.

Conditions
Sore Throat
Being tested
Menthol lozenge, Clove lozenge, None-placebo
Keywords
sore throat, lozenge, postoperative
Medical subject headings
Pharyngitis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Menthol lozengeBiological

    Patients in the menthol group will fill out the Patient introduction form, patient follow-up form, and numerical pain scale just before the first application. After 60 minutes after extubation, they will be asked to take the lozenge into their mouth without chewing or swallowing it and suck it, and the patient will be monitored until the lozenge is completely dissolved. After the first lozenge is finished, the patient follow-up form and numerical pain scale will be filled out. The second lozenge will be sucked 90 minutes after extubation. The third lozenge will be sucked 120 minutes after extubation and the patient follow-up form and numerical pain scale will be filled out.

  • Clove lozengeBiological

    Patients in the clove group will fill out the Patient introduction form, patient follow-up form, and numerical pain scale just before the first application. After 60 minutes after extubation, they will be asked to take the lozenge into their mouth without chewing or swallowing it and suck it, and the patient will be monitored until the lozenge is completely dissolved. After the first lozenge is finished, the patient follow-up form and numerical pain scale will be filled out. The second lozenge will be sucked 90 minutes after extubation. The third lozenge will be sucked 120 minutes after extubation and the patient follow-up form and numerical pain scale will be filled out.

  • None-placeboOther

    Before routine clinical procedures after surgery, the patients in the control group will fill out the Patient introduction form, Patient follow-up form, and Numerical pain scale. After 60 minutes after extubation; clinical procedures do not include any procedures or interventions and the patient follow-up form and Numerical pain scale will be evaluated. After 120 minutes after extubation; the patient follow-up form and numerical pain scale will be evaluated.

Study groups in NCT06811051
Study groupRoleWhat they receive
Menthol Group PatientsExperimentalPatients in the menthol group will fill out the Patient introduction form, patient follow-up form, and numerical pain scale just before the first application. After 60 minutes after extubation, they will be asked to take the lozenge into their mouth without chewing or swallowing it and suck it, and the patient will be monitored until the lozenge is completely dissolved. After the first lozenge is finished, the patient follow-up form and numerical pain scale will be filled out. The second lozenge will be sucked 90 minutes after extubation. The third lozenge will be sucked 120 minutes after extubation and the patient follow-up form and numerical pain scale will be filled out.
Receives: Biological: Menthol lozenge
Clove lozenge groupExperimentalPatients in the clove group will fill out the Patient introduction form, patient follow-up form, and numerical pain scale just before the first application. After 60 minutes after extubation, they will be asked to take the lozenge into their mouth without chewing or swallowing it and suck it, and the patient will be monitored until the lozenge is completely dissolved. After the first lozenge is finished, the patient follow-up form and numerical pain scale will be filled out. The second lozenge will be sucked 90 minutes after extubation. The third lozenge will be sucked 120 minutes after extubation and the patient follow-up form and numerical pain scale will be filled out.
Receives: Biological: Clove lozenge
Control GroupPlacebo comparatorBefore routine clinical procedures after surgery, the patients in the control group will fill out the Patient introduction form, Patient follow-up form, and Numerical pain scale. After 60 minutes after extubation; clinical procedures do not include any procedures or interventions and the patient follow-up form and Numerical pain scale will be evaluated. After 120 minutes after extubation; the patient follow-up form and numerical pain scale will be evaluated.
Receives: Other: None-placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. VAS pain score

    Sore throat pain will be measured by VAS score: zero mean NO PAIN, 10 means unsupportable pain.

    Measured: Pain was assessed at 4 time points, immediately before the first application (baseline) and 30 minutes after application of each of the three lozenges (T1, T2, T3).

  2. sore throat

    VAS is used to make measurable some values that cannot be measured numerically, evaluated by individuals by marking them on a horizontal or vertical line of 10 cm or 100 mm, one end of which indicates that the individual is "very good" and the other end of which indicates that the individual is "very bad".

    Measured: 60 minutes after extubation

Secondary outcomes (1)
  1. Sore throat

    VAS is used to make measurable some values that cannot be measured numerically, evaluated by individuals by marking them on a horizontal or vertical line of 10 cm or 100 mm, one end of which indicates that the individual is "very good" and the other end of which indicates that the individual is "very bad".

    Measured: 90 minutes after extubation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Feb 2025
  2. Study start25 Jan 2025
  3. Primary completion15 Oct 2025 (estimated)
  4. Study completion15 Nov 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Early Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
150 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06811051
Sponsor's protocol ID
CToprak
Status last verified
Feb 2024
First submitted
8 Jan 2025
Last updated
6 Feb 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Menthol lozenge and Clove lozenge in people with Sore Throat, run by Atlas University at 2 sites in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 6 Feb 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

VAS pain score (time frame: Pain was assessed at 4 time points, immediately before the first application (baseline) and 30 minutes after application of each of the three lozenges (T1, T2, T3).). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Feb 2025.

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