A prospective, multi-centre, randomised, double-blind, placebo-controlled Phase III trial to investigate the efficacy and safety of lozenges with benzydamine hydrochloride and dichlorobenzyl alcohol in the symptomatic treatment of patients suffering from acute pharyngitis

2025-521764-35-00 Protocol 6630-9450-01 Therapeutic confirmatory (Phase III) Not authorised

Status Not authorised · 1 EU/EEA countries · 20 sites · Protocol 6630-9450-01

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Not authorised
Participants planned 810
Countries 1
Sites 20

acute pharyngitis

To investigate the efficacy of lozenges with benzydamine hydrochloride and dichlorobenzyl alcohol in the symptomatic treatment of patients suffering from acute pharyngitis in terms of non-inferiority compared to an active comparator and superiority compared to placebo.

Key facts

Sponsor
MEDICE Arzneimittel Puetter GmbH & Co. KG
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Otorhinolaryngologic Diseases [C09]
Decision date (initial)
2025-09-19
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No
Funding sources
MEDICE Arzneimittel Pütter GmbH Co. KG

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy, Safety, Therapy

To investigate the efficacy of lozenges with benzydamine hydrochloride and dichlorobenzyl alcohol in the symptomatic treatment of patients suffering from acute pharyngitis in terms of non-inferiority compared to an active comparator and superiority compared to placebo.

Secondary objectives 1

  1. To investigate the safety and tolerability of lozenges with benzydamine hydrochloride and dichlorobenzyl alcohol compared to placebo and an active comparator in the symptomatic treatment of patients suffering from acute pharyngitis

Conditions and MedDRA coding

acute pharyngitis

VersionLevelCodeTermSystem organ class
20.1 LLT 10001002 Acute pharyngitis 10021881

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 6

  1. Age ≥ 18 years
  2. Signed informed consent
  3. Clinically diagnosed acute pharyngitis (defined as TPA value ≥5 points)
  4. Recent onset of symptoms (≤ 30 hours)
  5. Throat soreness scale ≥7 score points (TSS)
  6. Patients having a private internet-enabled electronic device (e.g. mobile phone, smartphone, tablet, PC) at that can be used for the entire duration of the clinical trial

Exclusion criteria 23

  1. Patients with strong suspicion of streptococcus A infection (McIsaac Score ≥3 points)
  2. Positive rapid streptococcus A test (rapid antigen detection test) to exclude the major bacterial pathogen responsible for sore throat
  3. Purulent tonsillitis
  4. Severe inflammations of the throat or throat pain that are accompanied by either high fever (≥ 38,5°C, oral (sublingual)), and / or nausea and/or vomiting
  5. The use of systemic antibiotics / local antibiotics in the throat area within the previous 7 days prior to screening
  6. The use of any systemic analgesics / local analgesics in the throat area (e.g. non-steroidal drugs, acetylsalicylic acid (> 100 mg), paracetamol) within the previous 6 hours prior to screening
  7. The use of any systemic anti-inflammatory drug / local anti-inflammatory drug in the throat area (e.g. glucocorticoids) within the previous 2 weeks prior to screening
  8. The use of local anaesthetics for treatment of sore throat within the previous 6 hours prior to screening
  9. The use of any systemic or local (i.e. in the throat area) antihistamines started within 2 weeks prior to screening
  10. Patients with any regular consumption of the use of cannabis. and / or any other drugs illegal in Germany (e.g. heroin) and / or alcohol abuse
  11. Known phenylketonuria
  12. Immunodeficiency disorders (e.g. organ transplantation, HIV infection)
  13. Severe neurologic and/or psychiatric disorders (including acute depressive mood / acute episode of depression)
  14. Malignant ENT disorders within the previous 5 years
  15. Known hypersensitivity to any of the ingredients of the trial medication
  16. Known hypersensitivity to salicylic acid or other NSAIDs (e.g. ibuprofen, diclofenac)
  17. Women of child-bearing potential who do not use a highly effective method of contraception (i.e. Pearl Index ≤ 1)
  18. Pregnancy and lactation
  19. Participation in another clinical trial during the trial and within the previous 30 days prior to screening
  20. Persons who are institutionalised by court order or regulatory action
  21. Patients, who are members of the staff of the clinical trial site, staff of the sponsor or involved Clinical Research Organisation (CRO), the investigator him- / herself or close relatives of the investigator
  22. Legal incapacity and/or other circumstances rendering the subject unable to understand the nature, scope and possible impact of the trial
  23. Patients, who take part in the clinical trial at the same time and live in the same household.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Superiority of IMP 1 in comparison to IMP 3 (Placebo) and for non-inferiority of IMP 1 in comparison to IMP 2 (reference) and is defined as area Under Curve (AUC) of changes from Baseline in Throat Soreness Intensity Scale (TSS) over the time course of 2 hours after first application on Day 0

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

DoriDuo

PRD12494753 · Product

Active substance
Benzydamine Hydrochloride
Substance synonyms
BENZINDAMINE HYDROCHLORIDE
Pharmaceutical form
LOZENGE
Route of administration
OROPHARYNGEAL USE
Max daily dose
25.2 mg milligram(s)
Max total dose
84 mg milligram(s)
Max treatment duration
4 Week(s)
Authorisation status
Not Authorised
ATC code
R02AX — -
MA holder
MEDICE ARZNEIMITTEL PÜTTER GMBH & CO KG
Paediatric formulation
No
Orphan designation
No

Comparator 1

Mebocaína Anti-Inflam, 1.2 mg + 3 mg, comprimidos para chupar

PRD9177224 · Product

Active substance
Benzydamine Hydrochloride
Pharmaceutical form
COMPRESSED LOZENGE
Route of administration
OROPHARYNGEAL USE
Max daily dose
25.2 mg milligram(s)
Max total dose
84 mg milligram(s)
Max treatment duration
4 Week(s)
Authorisation status
Authorised
ATC code
A01AD11 — VARIOUS
Marketing authorisation
5407382
MA holder
STADA LDA.
MA country
Portugal
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
new packaging for unblinding purpose

Placebo 1

Placebo to Test and Comparator

N/A · Product

Other product name
N/A
Pharmaceutical form
N/A
Route of administration
OROPHARYNGEAL USE
Max daily dose
25.2 mg milligram(s)
Max total dose
84 mg milligram(s)
Max treatment duration
4 Day(s)
ATC code
N/A — N/A
Marketing authorisation
N/A
MA holder
N/A
MA country
Iceland
Paediatric formulation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

MEDICE Arzneimittel Puetter GmbH & Co. KG

3 Total trials
Commercial
Sponsor organisation
MEDICE Arzneimittel Puetter GmbH & Co. KG
Address
Kuhloweg 37, Kuhlo Kuhlo
City
Iserlohn
Postcode
58638
Country
Germany

Scientific contact point

Organisation
MEDICE Arzneimittel Puetter GmbH & Co. KG
Contact name
Dr. Anne Schumacher-Stimpfl

Public contact point

Organisation
MEDICE Arzneimittel Puetter GmbH & Co. KG
Contact name
Dr. Anne Schumacher-Stimpfl

Third parties 4

OrganisationCity, countryDuties
Lozy's Pharmaceuticals S.L.
ORG-100020153
Lekaroz, Spain Other
Astrum CRO Germany GmbH
ORG-100027709
Ismaning, Germany On site monitoring, Code 10, Code 11, Code 12, Code 2, Code 5, Data management
Staburo GmbH
ORG-100042826
Munich, Germany Other
EvidentlQ Germany GmbH
ORG-100046039
Munich, Germany E-data capture

Locations

1 EU/EEA country · 20 investigational sites

By country

CountryMS statusPlanned subjectsSites
Germany Not authorised 810 20
Rest of world 0

Investigational sites

Germany

20 sites · Not authorised
Gemeinschaftspraxis Drs. Grosskopf
General Physician, Ahornstrasse 2a, 94574, Wallerfing
Praxis Dr. Joachim Weimer
General Physician, Paul-von-Schoenaich-Straße 29, 23858, Reinfeld
Medizinisches Versorgungszentrum Jung GbR
General Physician, Ditzenbacher Strasse 33, 73326, Deggingen
Private Practice Dr. med. Christian Korte
General Physician, Zörbigerstrasse 9, 06188, Landsberg
Private Practice Prof. Dr. med. Frederik M. Mader
General Physician, Talstraße 5, 93512, Nittendorf
Hausarztzentrum Butendorf
General Physician, Horster Strasse 137, Butendorf, Gladbeck
Praxis Dr. med. Manuela Thinesse-Mallwitz
General Physician, Faeustlestrasse 8, 80339, Munich
Studienzentrum MOL, BAG Dres. E. Hippke & S. Runge
Otolaryngologist, Allergist, Rosa-Luxemburg-Damm 1, 15366, Neuenhagen
MVZ im Altstadt-Carree Fulda GmbH
General Physician, Dalbergstrasse 22, Innenstadt, Fulda
Studienpraxis Heimeranplatz
General Physician, Heimeranplatz 2, 80339, Munich
Private Practice Dr. med. Annette Biedermann
General Physician, Marktstraße 19, 99444, Blankenhain
Praxis Dr. Mürbeth
General Physician, Schillerstraße 51, 93333, Neustadt an der Donau
Ambenet GmbH Das Ambulante Behandlungsnetz
General Physician, Wilhelm-Leuschner-Platz 12, Zentrum-Süd, Leipzig
Zentrum für klinische Forschung
General Physician, Berliner Str. 895, 51069, Köln
Medizentrum Essen Borbeck
General Physician, Huelsmannstrasse 6, Borbeck, Essen
Studienzentrum Dresden, Praxisklinik am Altmarkt, HNO-Praxis
Specialist in Ear, Nose and Throat medicine, Altmarkt 10 A, 01067, Dresden
HNO Praxis Dr. Thieme
Specialist in Ear, Nose and Throat medicine, Mercatorstraße 10-12, 47051, Duisburg
Berufsausübungsgemeinschaft Dr.med. Jörg Schulze,Dr.med.michael Schwerdtfeger Und Dr. Andrei Lehmann
Specialist internal medicine, Johannes-Lange-Str. 20, 39319, Jerichow
HNO prax
Specialist in Ear, Nose and Throat medicine, Hofaue 95, 42103, Wuppertal
medicoKIT GmbH
General Physician, Brueckenstrasse 42, 47574, Goch

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 14 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol_2025-521764-35-00_redacted 1
Protocol (for publication) D1_Protocol_2025-521764-35-00_V2_clean_redacted 2
Protocol (for publication) D4_Patient facing documents_eDiary specifications 1
Protocol (for publication) D4_Patient facing documents_Questionnaire_V1 1
Protocol (for publication) D4_Patient facing documents_TP and McIsaac Score 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_Flyer 1
Recruitment arrangements (for publication) K1_Recruitment Arrangements_patient recruitment procedure 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_Poster 1
Subject information and informed consent form (for publication) L1_SIS and ICF_Final V2_clean_redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_pregnant ICF_redacted 1
Subject information and informed consent form (for publication) L1_SIS and ICF_redacted 1
Subject information and informed consent form (for publication) L2_Patient facing documents_Emergency Contact Card 1
Summary of Product Characteristics (SmPC) (for publication) G2_SmPC_IMP2_Eng_redacted 1
Synopsis of the protocol (for publication) D1_Protocol Synopsis_2025-521764-35-00_redacted 1

Application history

1 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-07-11 Germany Not acceptable
2025-09-15
2025-09-19