Condition category
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Date assigned
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Prospectively registered
Overall trial status
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No longer recruiting
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Plain English Summary

Background and study aims
Chronic tonsillitis is a permanent inflammation of the tonsils. It means recurrent acute throat infections as well as swallowing problems, sore throat and/or bad breath which may come and go. In case of acute throat infections, patients usually receive pain relief medicines and/or antibiotics. Tonsilotren is a homeopathic medicinal product which is traditionally used for tonsillitis. The aim of this study is to assess how well Tonsilotren works in patients with chronic tonsillitis. The effect of Tonsilotren tablets will be assessed when they are given in addition to conventional treatment.

Who can participate?
Patients aged between 6 and 60 with chronic tonsillitis in Germany, Spain and Ukraine

What does the study involve?
Al patients receive conventional treatment which the study doctors adjust to the clinical symptoms of the patients. In addition, one in two patients are randomly allocated to also receive Tonsilotren. Patients see their study doctor 9 times in total over 14 months. At each of the visits, the study doctor performs a thorough physical examination (chronic tonsillitis-specific symptoms as well as respiratory complaints when present). Patients have to take their conventional medication as agreed with the study doctor. The patients belonging to the Tonsilotren group also have to take Tonsilotren according to a fixed dosage scheme. Patients keep a diary to record the changes of their chronic tonsillitis symptoms. In between the visits the study doctors call the patients to check their medical condition.

What are the possible benefits and risks of participating?
Patients receive a conventional symptomatic treatment for their chronic tonsillitis which does not differ from the treatment they would receive if they did not participate in this study. If patients are in the Tonsilotren group, they receive the homeopathic medicinal product Tonsilotren which is usually well tolerated. Possible side effects of Tonsilotren include reactions of hypersensitivity like skin rashes or possibility of increased salivation. At the beginning of this study, patients receive a detailed diagnostic evaluation and are under close medical supervision for as long as the study continues. By participating in this study, patients might contribute to new scientific findings relevant to the treatment of chronic tonsillitis with Tonsilotren.

Where is the study run from?
The study will be carried out by private practices or medical institutions experienced in ear-nose-throat medicine in Germany, Spain and Ukraine

When is the study starting and how long is it expected to run for?
January 2013 to May 2015

Who is funding the study?
Deutsche Homöopathie-Union (Germany)

Who is the main contact?
Dr Jürgen Palm

Trial website

Contact information



Primary contact

Dr Juergen Palm


Contact details

Rueckersdorfer Str. 61
Roethenbach an der Pegnitz

Additional identifiers

EudraCT number

2012-001430-34 number

Protocol/serial number


Study information

Scientific title

Therapeutic effectiveness, safety and tolerability of Tonsilotren® tablets in patients (6 to 60 years old) with chronic tonsillitis



Study hypothesis

No formal study hypothesis has been formulated. The data will be analyzed exploratively. The actual study has been set up to obtain systematically data of Tonsilotren® when treating patients suffering from chronic tonsillitis with Tonsilotren® under conditions which are as close as possible to normal daily routine.

Ethics approval

1. Germany: The Ethics Committee of the Bavarian State Medical Association (Ethikkommission der Bayrischen Landesärztekammer), 27/08/2012, ref: 12051
2. Spain: The Ethics Committee of the Joined Foundation of the Catalanian Hospitals (Comité Ético de Investigación Clínica de la Fundació unio catalana d'hospitals), 16/10/2012
3. Ukraine:
Local Ethics Committee from the National children's specialized hospital Ohmatdyt (Kiev), 29/08/2012, ref: 48
Local Ethics Committee from the Vinnytsia Regional Clinical Hospital, 30/07/2012, ref: 01-5-02/5
Local Ethics Committee from the Poltava Regional Clinical Hospital, 02/11/2012, ref: 47
Local Ethics Committee from the Odessa National Medical University, 11/09/2012, ref: 1
Local Ethics Committee from the Lugansk Hospital of Ministry of Internal Affairs, 16/07/2012, ref: 1
Local Ethics Committee from the Lugansk Regional Children's Clinical Hospital, 26/07/2012, ref: 1

Study design

Randomized international multicenter open controlled clinical trial

Primary study design


Secondary study design

Randomised controlled trial

Trial setting

GP practices

Trial type


Patient information sheet

Not available in web format, please use the contact details to request a patient information sheet


Chronic tonsillitis


Patients will be observed for 60 weeks. During that time they will receive three treatment cycles with Tonsilotren® each lasting eight weeks, in case the subject will be randomly allocated to the test group. Additionally all study subjects (test as well as control group) receive a symptomatic treatment where needed.

Intervention type



Phase III

Drug names


Primary outcome measure

Mean period of time between consecutive acute throat infections within one year

Secondary outcome measures

1. Number of days with either sore throat/difficulties in swallowing or halitosis or exhaustion [measurement: documentation in patient's diary]
2. Number of upper respiratory tract infections [measurement: documentation of investigator]
3. Severity of chronic tonsillitis symptoms [measurement: documentation of investigator using a 3-item scale: absent, mild, severe]
4. Frequency of antibiotics consumption due to acute throat infections [measurement: documentation of investigator]
5. Days with analgetics consumption due to acute throat infections [measurement: documentation in patient's diary]
6. Effect of treatment on performance of normal daily activity [measurement: documentation in patient's diary]
7. Patient’s quality of life [measurement: documentation on 5-item scale: very good, god, moderate, poor, very poor ]
8. Treatment outcome according to Integrative Medicine Outcome Scale [measurement: documentation of investigator and patient on 5-item scale: complete recovery, major improvement, slight to moderate improvement, no change, deterioration]
9. Tolerability of treatment [measurement: documentation of investigator and patient on 5-item scale: very good, good, moderate, poor, very poor]
10. Adverse events. [measurement: documentation of investigator]

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Subjects aged 6 to 60 years, either sex
2. Diagnosis of chronic tonsillitis
3. Written informed consent
4. Willingness and ability to comply with all trial procedures

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. Presence of acute throat infection at inclusion
2. Presence of peri-tonsillar abscess
3. Presence of acute and chronic otitis, adenoiditis, sinusitis of all types, odontological infection, bronchial and lung disease, tuberculosis or known allergic manifestations in the throat and / or mouth
4. Obstruction in the pharynx due to enlargement of tonsils
5. Presence of severe cardiovascular, renal or hepatic disease, as well as gastroesophageal reflux, unstable diabetes mellitus, hyperthyroidism, cerebrovascular or other active bleeding, human immunodeficiency virus infection, mononucleosis of each severity, or oropharyngeal gonorrhea
6. History of non-steroidal anti-inflammatory drugs (NSAIDs) intolerance, hematogenetic dysfunction of unknown origin, repeated peptic ulcera or hemorrhages
7. History or presence of all kind of serious streptococcal complications
8. Previous surgery in the past six months or need for surgery of the nose or paranasal sinuses, adenoids and/or tonsils
9. Evidence of any malignant disease during the past five years before enrolment into the trial
10. Presence of neurological and/or psychiatric diseases interfering with evaluation of quality of life and assessment in the patient's diary
11. Treatment with systemic acting antibiotics, glucocorticosteroids or medications with immunomodulating activities during the past four weeks and treatment with NSAIDs as well as locally on the tonsils acting antibiotics, glucocorticosteroids or immuno-modulators during the past week prior to enrolment into the trial
12. Known or suspected hypersensitivity to chromium, mercury or any other ingredient and/or excipient of Tonsilotren, lactose and / or fructose intolerance and known intolerance towards leather and jewelry metals as well as towards dental metal fillings and vaccines;
13. Heavy smoking or known or suspicion to or presence of drug addiction including alcohol abuse
14. Women of childbearing potential without adequate contraception or women, who want to become pregnant, are pregnant or breastfeeding
15. Prior enrolment into this trial
16. Participation in another clinical trial during the past three months prior to enrolment into the trial
17. Incapability of understanding nature, meaning and consequences of the trial
18. Patients in custody by juridical or official order
19. Patients, who are members of the staff of the study center, staff of the sponsor or involved Clinical Research Organizations, the investigator him- / herself or close relatives of the investigator

Recruitment start date


Recruitment end date



Countries of recruitment

Germany, Spain, Ukraine

Trial participating centre

Rueckersdorfer Str. 61
Roethenbach an der Pegnitz

Sponsor information


Deutsche Homöopathie-Union DHU-Arzneimittel GmbH & Co. KG (Germany)

Sponsor details

Ottostraße 24

Sponsor type




Funder type


Funder name

Deutsche Homöopathie-Union (DHU)-Arzneimittel GmbH & Co. KG (Germany)

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Basic results (scientific)

Publication list

2017 results in:

Publication citations

Additional files

Editorial Notes

09/08/2017: Publication reference added.