Study to Assess the Efficacy and Safety of Potassium Clavulanate/Amoxicillin in Children With Acute Bacterial Rhinosinusitis

This study has been completed.
Information provided by (Responsible Party):
GlaxoSmithKline Identifier:
First received: August 29, 2013
Last updated: November 27, 2013
Last verified: November 2013

Acute Bacterial Rhinosinusitis (ABRS) is a respiratory inflammation commonly seen in clinical practice, which has with respiratory symptoms including nasal congestion, rhinorrhoea, postnasal discharge and cough and is associated with headache, cheek pain, facial pressure and other conditions. The principal bacterial pathogens in causing ABRS include Streptococcus pneumoniae, Haemophilus influenzae and Moraxella (Branhamella) catarrhalis. These three bacteria account for approximately 90% of ABRS in children less than or equal to 5 years of age. Combination of Potassium Clavulanate (CVA) and Amoxicillin (AMPC) produces higher antibiotic activity against beta-lactamase-producing bacteria. The present study is designed to assess the clinical efficacy, bacteriological efficacy and safety of CVA/AMPC (1:14) administered in children aged from 3 months to less than 15 years with ABRS. It is an open-label study consisting of a 7-day treatment phase and a post-treatment follow-up phase for 7 to 14 days.

Condition Intervention Phase
Sinusitis, Acute
Drug: Amoxicillin-Potassium Clavulanate Combination
Phase 3

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Multicenter, Open-Label Study To Assess The Efficacy And Safety Of Potassium Clavulanate/Amoxicillin (CVA/AMPC 1:14 Combination) In The Treatment Of Children With Acute Bacterial Rhinosinusitis

Resource links provided by NLM:

Further study details as provided by GlaxoSmithKline:

Primary Outcome Measures:
  • To assess clinical outcome at follow-up (Day 15) [ Time Frame: Day 15 ] [ Designated as safety issue: No ]
    Clinical assessment of ABRS by the investigator (or subinvestigator) at the follow-up (Day 15) as; Cure: Sufficient improvement of the signs and symptoms such that no additional antibiotic therapy is needed. Failure: No change of the signs and symptoms, or additional antibiotic therapy is needed. Unable to determine: No information is available on signs and symptoms, or despite improvement of the signs and symptoms, use of a non study antibiotic, which means a protocol deviation.

Secondary Outcome Measures:
  • To assess clinical outcome at end of treatment (Day 8) [ Time Frame: Day 8 ] [ Designated as safety issue: No ]
    Clinical assessment by the investigator (or sub-investigator) at the end of treatment (Day 8) using the criteria shown in primary endpoint.

  • Bacteriological outcome at end of treatment (Day 8) [ Time Frame: Day 8 ] [ Designated as safety issue: No ]
    The investigator (or sub-investigator) will use the sample collected at the start of study treatment to isolate and identify the pathogenic bacteria. The sample collected at the end of treatment (Day 8) will be used to evaluate the bacteriological response to the investigational product of each participant using the classification system for bacteriological outcome shown in the protocol.

  • Severity assessment of symptoms and nasal cavity findings at Day 1, Day 4, Day 8 and Day 15 [ Time Frame: Day 1, Day 4, Day 8 and Day 15 ] [ Designated as safety issue: No ]
    The investigator (or sub-investigator) categorized the severity of symptoms like rhinorrhoea, bad mood/productive cough and nasal/postnasal discharge as mild, moderate and none.

Enrollment: 27
Study Start Date: August 2013
Study Completion Date: November 2013
Primary Completion Date: November 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Single arm
Each participant will take Potassium Clavulanate (CVA)/ Amoxicillin (AMPC) corresponding 6.4/90 mg/kg/day in two divided doses (every 12 hours) just before lactation or meal for 7 days depending on his/her body weight at the start of treatment (Day 1). The actual daily dose depends on the body weight of the participant.
Drug: Amoxicillin-Potassium Clavulanate Combination
The drug is available in two sachets (CVA/AMPC Dry Syrup 0.505 g and CVA/AMPC Dry Syrup 1.01 g). CVA/AMPC Dry Syrup 1.01 g sachet contains 42.9 mg of Potassium Clavulanate and 600 mg of Amoxicillin Hydrate. It is a white to yellowish white powder and has strawberry flavor and it is white to yellowish white suspension when it is suspended before use.


Ages Eligible for Study:   3 Months to 15 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Child with ABRS with inflammation as bacterial infection who has the following symptoms/signs on the day of or the day before the first dose of the investigational product: Redness of the nasal mucosa; nasal or postnasal discharge is purulent or mucopurulent; Pathological shadow in the paranasal sinus on a radiogram (only for reference). Patient with surgical history should be excluded but patient with a pervious surgery more than 365 days before and apparently preserved maxillary sinus mucosa or patient with a previous surgery of nasal polypectomy more than 90 days before may be enrolled in the study.
  • Child with ABRS whose severity is classified as moderate or severe (total score >=4) based on the nasal cavity findings and symptoms.
  • Boy or girl aged >=3 months to <15 years.
  • Body weight >=6 kilograms (kg) to <40 kg.
  • Written informed consent has been obtained from the child's legally acceptable representative. If the child is 12 years or older, the child him/herself should have also provided written informed consent. The investigator (or sub-investigator) should attempt to obtain written informed consent from the child him/herself as far as possible even if the child is less than 12 years of age.

Exclusion Criteria:

  • Severe infection that requires surgical treatment (e.g., child with systemic symptoms such as fever associated with swelling face, child with almost full nasal obstruction due to a large nasal polyp).
  • Serious complication such as acute mastoiditis, facial palsy, bacterial meningitis, and brain tumor.
  • Congenital disorder such as maxillofacial dysplasia.
  • Need of concomitant use of other antibiotics.
  • Serious underlying disease (e.g., cardiac disease, malignancy, juvenile diabetes).
  • Concurrent infection associated with gastrointestinal symptoms (e.g., diarrhoea, vomiting) that may affect safety assessment.
  • Known hypersensitivity to any component of CVA/AMPC or penicillin or cephem antibiotic, or past history of a serious adverse reaction possibly related to any of these agents.
  • Infectious mononucleosis.
  • Current hepatic impairment, or past history of jaundice or hepatic impairment due to any component of CVA/AMPC.
  • Past or current renal impairment (e.g., serum creatinine >=1.5 × Upper Limit of Normal, creatinine clearance of less than 30 milliliter/liter [mL/L]).
  • Past or current immune dysfunction or insufficiency, or use of immunosuppressive therapy.
  • Need corticosteroid for systemic, eye drops or nasal drops.
  • Phenylketonuria.
  • Use of azithromycin within 14 days prior to the first dose of the investigational product.
  • Use of any antibiotic within 7 days prior to the first dose of the investigational product.
  • Current use or imperative use during the study period of probenecid or a tubular secretion inhibitor.
  • Participation in another clinical study within 3 months prior to enrollment, or prospected participation in another clinical study during the period of this study.
  • Girl with menstruation and childbearing potential, pregnant girl, lactating girl, or girl who is planning a pregnancy during the study period. A girl with childbearing potential may be enrolled in the study only if she is willing to use at least one of the following acceptable measures for contraception throughout the study period: Male partner sterilization prior to the girl's entry into the study, and this male is the sole partner for that girl; Intrauterine device (IUD) (with documented annual failure rate estimate of <1%); Abstinence; Male condom combined with a female diaphragm, either with or without a vaginal spermicide.
  • The legally acceptable representative is a minor.
  • Child in care.
  • History of alcohol or drug abuse.
  • Relationship with the study medical institution: The investigator, sub-investigator, study collaborator, person employed by the investigator or the study medical institution, or their close relatives.
  • Child whose participation in the study is considered inappropriate by the investigator (or sub-investigator).
  Contacts and Locations
Please refer to this study by its identifier: NCT01934231

GSK Investigational Site
Chiba, Japan, 279-0012
GSK Investigational Site
Chiba, Japan, 272-0143
GSK Investigational Site
Tokyo, Japan, 125-0052
Sponsors and Collaborators
Study Director: GSK Clinical Trials GlaxoSmithKline
  More Information

No publications provided

Responsible Party: GlaxoSmithKline Identifier: NCT01934231     History of Changes
Other Study ID Numbers: 117150
Study First Received: August 29, 2013
Last Updated: November 27, 2013
Health Authority: Japan: Ministry of Health, Labor and Welfare
Japan: Pharmaceuticals and Medical Devices Agency

Keywords provided by GlaxoSmithKline:
Acute bacterial rhinosinusitis
Potassium clavulanate

Additional relevant MeSH terms:
Paranasal Sinus Diseases
Nose Diseases
Respiratory Tract Diseases
Respiratory Tract Infections
Otorhinolaryngologic Diseases
Amoxicillin-Potassium Clavulanate Combination
Clavulanic Acids
Clavulanic Acid
Anti-Bacterial Agents
Anti-Infective Agents
Therapeutic Uses
Pharmacologic Actions
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on April 21, 2014