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Acute PharyngitisYLS-AP-RCTNCT07761013

Yanlishuang Buccal Dropping Pills for Acute Pharyngitis

A study testing Yanlishuang Buccal Dropping Pills in people with Acute Pharyngitis, run by Beijing University of Chinese Medicine at 10 sites in China.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Acute pharyngitis commonly causes sore throat and pain on swallowing. This multicenter trial will compare Yanlishuang Buccal Dropping Pills with a matching placebo in 400 adults aged 18 to 65 years whose acute pharyngitis began within 48 hours and whose baseline throat-pain visual analog scale score is at least 4. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Acute Pharyngitis
What is being tested?
Yanlishuang Buccal Dropping Pills
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
400 participants
Where
10 sitesChina
Study dates
1 Aug 2026to 29 Jun 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

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

  • Age 18 to 65 years, inclusive, of any sex.
  • Baseline throat-pain visual analog scale score of at least 4.
  • Meets the protocol-defined Western medicine diagnostic criteria for acute pharyngitis.
  • Acute onset with disease duration of 48 hours or less.
  • Provides written informed consent and is able to follow the study protocol.

Who cannot join

  • Prior use of Yanlishuang Buccal Dropping Pills before enrollment, or use before enrollment of any other Chinese or Western medicine for the target disease that, in the investigator's judgment, may affect efficacy evaluation.
  • Prodromal or accompanying throat symptoms of an acute infectious disease, such as measles, scarlet fever, or infectious mononucleosis; suppurative tonsillitis; peritonsillar abscess; retropharyngeal abscess; acute epiglottitis; or throat symptoms caused by another disease.
  • Modified Centor score of at least 2, with white blood cell count, absolute neutrophil count, and C-reactive protein all above the upper limit of normal, when the investigator considers bacterial infection or antibiotic treatment necessary.
  • Concurrent bacterial otitis media, sinusitis, laryngitis, bronchitis, pneumonia, acute nephritis, rheumatic fever, sepsis, or a similar complication.
  • Severe primary disease of the central nervous, hematopoietic, endocrine, cardiovascular/cerebrovascular, digestive, or other system, or a psychiatric disorder, that the investigator considers may affect participant safety or materially affect clinical evaluation.
  • Abnormal hepatic or renal function: alanine aminotransferase or aspartate aminotransferase greater than 1.5 times the upper limit of normal and/or serum creatinine above the upper limit of normal.
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  • Suspected or confirmed history of alcohol or drug abuse.
  • Pregnancy, breastfeeding, preparation for pregnancy, or a recent childbearing plan.
  • Known allergy to any component of the study medication.
  • Participation in another clinical trial and use of an investigational product within the previous 1 month.
  • Constitutional spleen-stomach deficiency-cold or a condition considered unsuitable for study medication, including but not limited to acute or chronic gastritis, erosive gastritis, or gastroesophageal reflux disease.
  • Any other condition that the investigator considers makes the individual unsuitable for participation.

Trial locations and contacts

10 sites in 1 country. Contact the study team or a site near you to ask about taking part.

10 sites in 1 country

China10 sites
  • Affiliated Hospital of Chengdu University of Traditional Chinese Medicine / Sichuan Provincial Hospital of Traditional Chinese Medicine

    Chengdu, Sichuan

  • First Affiliated Hospital of Guangzhou University of Chinese Medicine

    Guangzhou, Guangdong

  • Affiliated Hospital of Guizhou Medical University

    Guiyang, Guizhou

  • First Affiliated Hospital of Heilongjiang University of Chinese Medicine

    Harbin, Heilongjiang

  • First Affiliated Hospital of Shandong University of Traditional Chinese Medicine / Shandong Provincial Hospital of Traditional Chinese Medicine

    Jinan, Shandong

  • First Affiliated Hospital of Yunnan University of Chinese Medicine / Yunnan Provincial Hospital of Traditional Chinese Medicine

    Kunming, Yunnan

  • Jiangxi Provincial Hospital of Traditional Chinese Medicine

    Nanchang, Jiangxi

  • Jiangsu Province Hospital of Chinese Medicine

    Nanjing, Jiangsu

  • Shanghai Municipal Hospital of Traditional Chinese Medicine

    Shanghai, Shanghai Municipality

  • First Teaching Hospital of Tianjin University of Traditional Chinese Medicine

    Tianjin, Tianjin Municipality

Other trials in China

About this study

Official title: A Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Clinical Trial to Evaluate the Efficacy and Safety of Miao Medicine Yanlishuang Buccal Dropping Pills in Adults With Acute Pharyngitis

Acute pharyngitis commonly causes sore throat and pain on swallowing. This multicenter trial will compare Yanlishuang Buccal Dropping Pills with a matching placebo in 400 adults aged 18 to 65 years whose acute pharyngitis began within 48 hours and whose baseline throat-pain visual analog scale score is at least 4. Participants will be randomized 1:1 and treated under double-blind conditions. Each group will use four buccal dropping pills 4 to 6 times daily at intervals of at least 2 hours for up to 5 days. Participants whose sore throat resolves after at least 72 hours and remains absent for at least 24 hours may stop treatment early. The primary outcome is time to complete sore throat resolution. Secondary outcomes assess immediate pain relief, onset and resolution of pain, symptom and physical-sign response, complications, and work absence. Safety will be assessed using physical examinations, vital signs, laboratory tests, electrocardiograms, and adverse events.

Read the detailed description

This is a randomized, double-blind, placebo-controlled, parallel-group, multicenter clinical trial. A total of 400 eligible participants will be assigned in a 1:1 ratio to Yanlishuang Buccal Dropping Pills or matching placebo. Block randomization will be generated with SAS by a statistician not involved in the final study analysis. Study drug and placebo will have identical packaging and labeling to maintain masking. Participants will record resting throat pain and swallowing pain using a 0-to-10 visual analog scale in a daily log. The first dose is taken immediately after study medication is dispensed. Treatment continues for 5 days; participants with complete sore throat resolution after at least 72 hours, maintained for 24 hours or longer, may complete all final safety assessments and end participation early. Other local throat treatments, drugs with similar therapeutic effects, and efficacy-influencing nonpharmacologic treatments are prohibited. Acetaminophen may be used as rescue medication under protocol-specified fever or intolerable-discomfort conditions, and all concomitant medication will be recorded.

Being tested
Yanlishuang Buccal Dropping Pills, Yanlishuang Buccal Dropping Pills Placebo
Keywords
acute pharyngitis, sore throat, swallowing pain, resting throat pain, visual analog scale, Miao medicine, Traditional Chinese Medicine, Yanlishuang, buccal dropping pills, placebo-controlled trial
Medical subject headings
Pharyngitis

What participants receive

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

  • Yanlishuang Buccal Dropping PillsDrug

    Miao medicine buccal dropping pills supplied by the sponsor. The protocol lists Aipian/natural borneol, Blumea balsamifera oil, peppermint oil, menthol, and monoammonium glycyrrhizinate, with polyethylene glycol 6000 as excipient. Dose: 4 pills buccally per administration, 4 to 6 administrations per day, at intervals of at least 2 hours, for up to 5 days.

  • Yanlishuang Buccal Dropping Pills PlaceboDrug

    Matching placebo with identical dosage form, weight, packaging, schedule, and administration: 4 pills buccally per administration, 4 to 6 administrations per day, at intervals of at least 2 hours, for up to 5 days.

Study groups in NCT07761013
Study groupRoleWhat they receive
Yanlishuang Buccal Dropping PillsExperimentalParticipants allow 4 Yanlishuang Buccal Dropping Pills to dissolve in the mouth per dose, 4 to 6 times daily, with at least 2 hours between doses, for up to 5 days. Each pill weighs 0.025 g.
Receives: Drug: Yanlishuang Buccal Dropping Pills
Matching PlaceboPlacebo comparatorParticipants allow 4 matching placebo buccal dropping pills to dissolve in the mouth per dose, 4 to 6 times daily, with at least 2 hours between doses, for up to 5 days. Each placebo pill weighs 0.025 g.
Receives: Drug: Yanlishuang Buccal Dropping Pills Placebo

What is being measured

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

  1. Time to complete sore throat resolution

    Time in hours from the first dose to the first assessment at which both swallowing-pain and resting-throat-pain visual analog scale scores are 0 and remain 0 for at least 24 hours. Participants record the worst pain experienced during the preceding 24 hours.

    Measured: From the first dose until complete sore throat resolution, assessed up to Day 6.

Secondary outcomes (41)
  1. Immediate analgesic effect on resting throat pain

    Change from the pre-dose resting-throat-pain visual analog scale score after the first daily dose. The visual analog scale ranges from 0 (no pain) to 10 (very severe pain); a larger reduction indicates greater immediate pain relief.

    Measured: Days 1, 2, and 3: immediately pre-dose and 5, 30, and 60 minutes after the first daily dose.

  2. Immediate analgesic effect on swallowing pain

    Change from the pre-dose swallowing-pain visual analog scale score after the first daily dose. The visual analog scale ranges from 0 (no pain) to 10 (very severe pain); a larger reduction indicates greater immediate pain relief.

    Measured: Days 1, 2, and 3: immediately pre-dose and 5, 30, and 60 minutes after the first daily dose.

  3. Time to onset of relief of resting throat pain

    Time from the first dose until the worst resting-throat-pain visual analog scale score during the preceding 24 hours is reduced by at least 50 percent from baseline.

    Measured: From the first dose until onset of relief of resting throat pain, assessed up to Day 6.

  4. Time to onset of relief of swallowing pain

    Time from the first dose until the worst swallowing-pain visual analog scale score during the preceding 24 hours is reduced by at least 50 percent from baseline.

    Measured: From the first dose until onset of relief of swallowing pain, assessed up to Day 6.

  5. Time to resolution of resting throat pain

    Time from the first dose until the resting-throat-pain visual analog scale score is 0 and remains 0 for at least 24 hours.

    Measured: From the first dose until resolution of resting throat pain, assessed up to Day 6.

  6. Time to resolution of swallowing pain

    Time from the first dose until the swallowing-pain visual analog scale score is 0 and remains 0 for at least 24 hours.

    Measured: From the first dose until resolution of swallowing pain, assessed up to Day 6.

  7. Complete sore throat resolution rate

    Proportion of participants whose swallowing-pain and resting-throat-pain visual analog scale scores are both 0 at the specified assessment.

    Measured: Day 3 and Day 5; the final Day 5 assessment may be conducted within the Day 5 + 1-day visit window.

  8. Change from baseline in resting throat pain visual analog scale score

    Change from baseline in the resting-throat-pain visual analog scale score. The scale ranges from 0 (no pain) to 10 (very severe pain); a negative change indicates improvement.

    Measured: Baseline, Day 3, and Day 5; the Day 5 assessment may be conducted on Day 6.

  9. Change from baseline in swallowing pain visual analog scale score

    Change from baseline in the swallowing-pain visual analog scale score. The scale ranges from 0 (no pain) to 10 (very severe pain); a negative change indicates improvement.

    Measured: Baseline, Day 3, and Day 5; the Day 5 assessment may be conducted on Day 6.

  10. Traditional Chinese Medicine syndrome response rate

    Proportion of participants with at least a 50 percent decrease from baseline in the protocol-defined Traditional Chinese Medicine syndrome score. The score is the sum of primary-symptom and secondary-symptom item scores.

    Measured: Baseline and Day 5; the Day 5 assessment may be conducted on Day 6.

  11. Resolution rate of individual Traditional Chinese Medicine syndrome symptoms

    For each individual symptom item in the protocol-defined Traditional Chinese Medicine syndrome scale, resolution is defined as a post-treatment item score of 0. Each symptom item will be summarized separately.

    Measured: Baseline and Day 5; the Day 5 assessment may be conducted on Day 6.

  12. Throat physical-sign resolution rate

    Proportion of participants whose protocol-defined throat physical-sign score decreases to 0 after treatment. The assessment includes pharyngeal mucosal congestion, posterior pharyngeal-wall lymphoid follicle swelling, lateral pharyngeal-band swelling, uvula/soft-palate redness and swelling, and submandibular lymph-node enlargement.

    Measured: Baseline and Day 5; the Day 5 assessment may be conducted on Day 6.

  13. Incidence of acute pharyngitis complications

    Proportion of participants who develop protocol-specified complications during treatment, including bacterial otitis media, sinusitis, laryngitis, bronchitis, pneumonia, acute nephritis, rheumatic fever, sepsis, or other clinically diagnosed complications.

    Measured: From the first dose through Day 6.

  14. Work absence due to acute pharyngitis

    Number and proportion of employed/commuting participants who miss work because of acute pharyngitis during the treatment period.

    Measured: From the first dose through Day 6.

  15. Duration of work absence due to acute pharyngitis

    Total duration of work absence attributable to acute pharyngitis among employed/commuting participants.

    Measured: From the first dose through Day 6.

  16. Change from baseline in axillary body temperature

    Change in axillary body temperature as a vital-sign safety assessment.

    Measured: Baseline and final visit on Day 6 (Day 5 + 1-day window).

  17. Change from baseline in pulse rate

    Change in pulse rate as a vital-sign safety assessment.

    Measured: Baseline and final visit on Day 6.

  18. Change from baseline in respiratory rate

    Change in respiratory rate as a vital-sign safety assessment.

    Measured: Baseline and final visit on Day 6.

  19. Change from baseline in systolic blood pressure

    Change in systolic blood pressure as a vital-sign safety assessment.

    Measured: Baseline and final visit on Day 6.

  20. Change from baseline in diastolic blood pressure

    Change in diastolic blood pressure as a vital-sign safety assessment.

    Measured: Baseline and final visit on Day 6.

  21. Change from baseline in red blood cell count

    Change in red blood cell count as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  22. Change from baseline in hemoglobin level

    Change in hemoglobin level as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  23. Change from baseline in platelet count

    Change in platelet count as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  24. Change from baseline in white blood cell count

    Change in white blood cell count as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  25. Change from baseline in absolute neutrophil count

    Change in absolute neutrophil count as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  26. Change from baseline in neutrophil percentage

    Change in neutrophil percentage as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  27. Change from baseline in absolute lymphocyte count

    Change in absolute lymphocyte count as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  28. Change from baseline in lymphocyte percentage

    Change in lymphocyte percentage as a hematology safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  29. Change from baseline in C-reactive protein level

    Change in C-reactive protein level as a laboratory safety and inflammation measure.

    Measured: Baseline and final visit on Day 6.

  30. Change from baseline in alanine aminotransferase level

    Change in alanine aminotransferase level as a liver-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  31. Change from baseline in aspartate aminotransferase level

    Change in aspartate aminotransferase level as a liver-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  32. Change from baseline in total bilirubin level

    Change in total bilirubin level as a liver-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  33. Change from baseline in alkaline phosphatase level

    Change in alkaline phosphatase level as a liver-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  34. Change from baseline in gamma-glutamyl transferase level

    Change in gamma-glutamyl transferase level as a liver-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  35. Change from baseline in blood urea nitrogen level

    Change in blood urea nitrogen level as a renal-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  36. Change from baseline in serum creatinine level

    Change in serum creatinine level as a renal-function safety laboratory measure.

    Measured: Baseline and final visit on Day 6.

  37. Clinically significant changes in physical examination findings

    Number and proportion of participants with new or worsened clinically significant physical examination findings after treatment, based on the investigator assessment.

    Measured: Baseline and final visit on Day 6.

  38. Clinically significant 12-lead electrocardiogram abnormalities

    Number and proportion of participants with new or worsened clinically significant abnormalities on 12-lead electrocardiogram after treatment.

    Measured: Baseline and final visit on Day 6.

  39. Incidence of adverse events

    Number and proportion of participants with one or more adverse events after receiving study medication. Events will be coded using MedDRA and summarized by system organ class and preferred term. Unresolved adverse events will be followed until resolution, stabilization, a reasonable explanation, loss to follow-up, or investigator determination that further follow-up is unnecessary.

    Measured: From the first dose through Day 6.

  40. Incidence of serious adverse events

    Number and proportion of participants with one or more serious adverse events after receiving study medication. Serious adverse events will be followed and reported according to the protocol.

    Measured: From the first dose through Day 6.

  41. Incidence of suspected unexpected serious adverse reactions

    Number and proportion of participants with one or more suspected unexpected serious adverse reactions related to study medication. Events will be followed and reported according to the protocol.

    Measured: From the first dose through Day 6.

Timeline

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

  1. First posted12 Aug 2026
  2. Study start1 Aug 2026 (estimated)
  3. Primary completion26 Mar 2027 (estimated)
  4. Study completion29 Jun 2027 (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
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants are randomized in a 1:1 ratio to Yanlishuang Buccal Dropping Pills or matching placebo for up to 5 days.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
400 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07761013
Sponsor's protocol ID
YNZYYLS-2026-06
Acronym
YLS-AP-RCT
Status last verified
Aug 2026
First submitted
4 Aug 2026
Last updated
12 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data will not be shared with other researchers. Study findings will be reported only in aggregate form.

Questions about this trial

What is this clinical trial studying?

A study testing Yanlishuang Buccal Dropping Pills in people with Acute Pharyngitis, run by Beijing University of Chinese Medicine at 10 sites in China.

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 5 inclusion and 12 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: opening soon, as of the sponsor's last update on 12 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 10 sites in China. 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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?

Time to complete sore throat resolution (time frame: From the first dose until complete sore throat resolution, assessed up to Day 6.). 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 12 Aug 2026.

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