Trial to Evaluate Beta-Lactam Antimicrobial Therapy of Community Acquired Pneumonia in Children

A Phase IV Double-Blind, Placebo-Controlled, Randomized Trial to Evaluate Short Course vs.Standard Course Outpatient Therapy of Community Acquired Pneumonia in Children (SCOUT-CAP)

This is a multi-center, randomized, double-blind, placebo-controlled, superiority clinical trial will test the effectiveness of short (5-day) vs.standard (10-day) course therapy in children who are diagnosed with CAP and initially treated in outpatient clinics, urgent care facilities, and emergency departments. Primary objective is to compare the composite overall outcome (Desirability of Outcome Ranking, DOOR) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visit #1 (Study Day 8 +/- 2 days)

Study Overview

• Status: Completed
• Conditions: Pneumonia
• Intervention / Treatment: Other: Placebo; Drug: Amoxicillin; Drug: Amoxicillin-clavulanate; Drug: Cefdinir

Detailed Description

This is a multi-center, randomized, double-blind, placebo-controlled, superiority clinical trial evaluating short course (5 day) vs. standard course (10 day) of oral beta-lactam antibiotic therapy (amoxicillin, amoxicillin-clavulanate, cefdinir) for treatment of CAP in children 6-71 months of age who have clinically improved prior to enrollment. The study will randomize approximately 400 enrolled subjects to one of the two study arms (approximately 200 children in each arm) in order to reach 360 subjects completing Outcome Assessment Visit 1. Subjects will be randomized (1:1) to receive either a standard course of the initially prescribed antibiotic (10 days) or a short course of the initially prescribed antibiotic (5 days) plus 5 days of matching placebo. The study will recruit potential subjects from children who are diagnosed with CAP and who are initiated on oral beta-lactam therapy by healthcare providers in EDs, outpatient clinics, and urgent care centers at the study sites. Day -5 is defined as the date on which oral beta-lactam therapy is initiated for a diagnosis of CAP. Potential subjects will be identified at any time following clinical diagnosis of pneumonia. These subjects will be assessed for eligibility and enrolled on Day -3 to -1 of their initially prescribed oral beta-lactam therapy. Subjects may also be enrolled on Day 1 (the first day of receipt of study agent) provided they have not yet received any doses of the healthcare provider-prescribed antibiotic therapy for that day. The Primary objective is to compare the composite overall outcome (Desirability of Outcome Ranking, DOOR) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visit #1 (Study Day 8 +/- 2 days). The Secondary objectives are: 1) To compare the composite overall outcome (DOOR) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visit #2 (Study Day 22 +/- 3 days); 2) To compare the resolution of symptoms (a component of DOOR) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visits #1 and #2; 3) To compare the clinical response (a component of DOOR) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visits #1 and #2; 4) To compare solicited events (a component of DOOR) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visits #1 and #2; 5) To compare medically attended visits to Emergency Departments (ED) or outpatient clinics, hospitalizations, surgical procedures, and receipt of non-study systemic antibiotics (components of the clinical response) among children 6-71 months of age with CAP assigned to a strategy of short course (5 days) vs standard course (10 days) outpatient beta-lactam therapy at Outcome Assessment Visits #1 and #2

• Study Type: Interventional
• Enrollment (Actual): 385
• Phase: Phase 4

Contacts and Locations

Study Locations

• United States
  • Alabama
    • Birmingham, Alabama, United States, 35233-1711
      • University of Alabama - Children's of Alabama - Infectious Diseases/Virology
  • Arkansas
    • Little Rock, Arkansas, United States, 72202-3500
      • Arkansas Children's Hospital - Infectious Diseases
  • Kentucky
    • Louisville, Kentucky, United States, 40202
      • University of Louisville School of Medicine - Norton Children's Hospital - Infectious Diseases
  • Missouri
    • Saint Louis, Missouri, United States, 63110-1010
      • Washington University School of Medicine in St. Louis - Infectious Diseases
  • North Carolina
    • Durham, North Carolina, United States, 27704
      • Duke Human Vaccine Institute - Duke Vaccine and Trials Unit
  • Ohio
    • Cincinnati, Ohio, United States, 45229-3039
      • Cincinnati Children's Hospital Medical Center - Infectious Diseases
  • Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19104-3309
      • Children's Hospital of Philadelphia - The Center for Pediatric Clinical Effectiveness
    • Pittsburgh, Pennsylvania, United States, 15213-3205
      • Children's Hospital of Pittsburgh of UPMC - General Academic Pediatric
  • Tennessee
    • Nashville, Tennessee, United States, 37232-2573
      • Vanderbilt University - Pediatric - Vanderbilt Vaccine Research Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 6 months to 5 years (Child)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Age 6 - 71 months

2. Provider diagnosis of CAP and prescription of antibiotic therapy with amoxicillin, amoxicillin-clavulanate, or cefdinir

   - amoxicillin or amoxicillin-clavulanate prescribed at a amoxicillin dose of 60 mg/kg/day

   -- cefdinir prescribed at a minimum dose of 10 mg/kg/day

3. Parental report of clinical improvement

   - based on lack of either subjective or known fever temperature >/= 38.3°C in the preceding 24 hours; current respiratory rate no greater than 50 breaths/minute (<2 years of age) or breaths/minute (= / > 2 years of age); and current grade of cough < 3

4. Ability of a parent or guardian to understand and comply with the study procedures and be available for all study visits
5. Signed written informed consent by a parent or guardian

Exclusion Criteria:

1. Treatment with any systemic antibiotic therapy within 7 days before the diagnosis of CAP 2. Initial therapy for CAP with combination antibiotic therapy

• amoxicillin, amoxicillin/clavulanate or cefdinir plus one or more additional oral, intravenous, or intramuscular antibiotics 3. History of anaphylaxis or severe drug allergy to amoxicillin, if prescribed amoxicillin or amoxicillin/clavulanic acid; or oral cephalosporin antibiotics (except cefaclor), if prescribed cefdinir 4. Presence of concomitant bacterial infection that requires > 5 days of antibiotic therapy 5. Radiographic findings (where applicable) of complicated pneumonia at presentation or any subsequent chest radiograph up to the time of enrollment
• clinically significant pleural effusion, lung abscess, or pneumatocele 6. Hospitalization for pneumonia during Day -5 to -1 of antibiotic therapy for CAP
• subjects who require serial clinical assessments, but are discharged within 24 hours will not be considered hospitalized and will not satisfy this exclusion criterion 7. Pneumonia due to S. aureus or group A streptococcus documented by positive blood culture or PCR, at the time of enrollment 8. History of pneumonia within the previous 6 months 9. History of persistent asthma within the previous 6 months or current acute asthma exacerbation

• persistent asthma is defined as receiving daily asthma maintenance therapy such as inhaled corticosteroids, cromolyn, theophylline, or leukotriene receptor antagonists

  -- acute asthma exacerbation is defined as receiving concomitant bronchodilator therapy and systemic corticosteroids 10. Provider-diagnosis of aspiration pneumonia, bronchiolitis, or bronchitis 11. Surgery or other invasive procedures of the upper or lower airway (e.g., bronchoscopy, laryngoscopy) with general anesthesia or hospitalization </=7 days before diagnosis of CAP 12. History of an underlying chronic medical condition

• including chronic heart disease, chronic lung disease (except asthma), congenital anomalies of the airways or lung, cystic fibrosis, chronic renal disease including nephrotic syndrome, protein-losing enteropathy of any cause, severe malnutrition, neurocognitive disorders, metabolic disorders (including phenylketonuria), or genetic disorders (note: genetic syndromes such as Down syndrome and Edwards Syndrome are excluded; however, children with genetic disorders (e.g., hemophilia) but who do not have a genetic syndrome may not satisfy this particular exclusion criterion; it is important that children with such genetic disorders do not have symptoms and/or comorbidities that would pose additional risk to them nor jeopardize the adequacy of study assessments.) 13. History of a condition that compromises the immune system
• HIV infection, primary immunodeficiency, anatomic or functional asplenia; receipt of a hematopoietic stem cell or solid organ transplant at any time; receipt of immunosuppressive therapy including chemotherapeutic agents, biologic agents, antimetabolites or radiation therapy during the past 12 months; or daily use of systemic corticosteroids for more than 7 consecutive days during the past 14 days 14. Any other condition that in the judgment of the investigator precludes participation because it could affect the safety of the subject 15. Current enrollment in another clinical trial of an investigational agent 16. Previous enrollment in this trial

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Short; 200 subjects will receive a short course of the initially prescribed antibiotic for 5 days plus 5 days of matching placebo	Other: Placebo; Placebo; Drug: Amoxicillin; Amoxicillin is an aminopenicillin antibiotic; Drug: Amoxicillin-clavulanate; A fixed-ratio combination of amoxicillin trihydrate, an aminopenicillin, and potassium clavulanate, a beta-lactamase inhibitor, used to treat a broad-spectrum of bacterial infections, especially resistant strains.; Drug: Cefdinir; Cefdinir is a cephalosporin antibiotic used to treat bacterial infections in many different parts of the body.
Active Comparator: Standard; 200 subjects will receive a standard course of the initially prescribed antibiotic( Amoxicillin, Amoxicillin-Clavulanate, Cefdinir) for 10 days	Drug: Amoxicillin; Amoxicillin is an aminopenicillin antibiotic; Drug: Amoxicillin-clavulanate; A fixed-ratio combination of amoxicillin trihydrate, an aminopenicillin, and potassium clavulanate, a beta-lactamase inhibitor, used to treat a broad-spectrum of bacterial infections, especially resistant strains.; Drug: Cefdinir; Cefdinir is a cephalosporin antibiotic used to treat bacterial infections in many different parts of the body.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Desirability of Outcome Ranking (DOOR)	DOOR is a composite endpoint created using clinical outcomes from the first 5 days and at Outcome Assessment Visit #1 (OAV #1). It is based on adequate clinical response at OAV #1, solicited symptoms from first 5 days and number of days of antibiotics use for worsening pneumonia from the first 5 days of the study.	Outcome Assessment Visit 1 (Study Day 8 +/- 2 days)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Desirability of Outcome Ranking (DOOR)	DOOR is a composite endpoint created using clinical outcomes from the first 18 days and at Outcome Assessment Visit #2 (OAV #2). It is based on adequate clinical response at OAV #2, solicited symptoms from first 18 days and number of days of antibiotics use for worsening pneumonia from the first 18 days of the study.	Outcome Assessment Visit 2 (Study Day 22 +/- 3 days)
Resolution of Symptoms (a Component of DOOR)	This table provides number and percentage of subjects who experienced lack of resolution of symptoms by their OAV #1.	Outcome Assessment Visit 1 (Study Day 8 +/- 2 days)
Resolution of Symptoms (a Component of DOOR)	This table provides number and percentage of subjects who experienced lack of resolution of symptoms by their OAV #2.	Outcome Assessment Visit 2 (Study Day 22 +/- 3 days)
Adequate Clinical Response Rates (a Component of DOOR)	Lack of adequate clinical response at OAV #1 is defined as the presence of a medically attended visit to an Emergency Department (ED) or outpatient clinic or hospitalization or receipt of non-study antibiotics or surgical procedures for persistent or worsening pneumonia from Day 1 to Day 5.	Outcome Assessment Visit 1 (Study Day 8 +/- 2 days)
Adequate Clinical Response Rates (a Component of DOOR)	Lack of adequate clinical response at OAV #2 is defined as the presence of a medically attended visit to an ED or outpatient clinic or hospitalization or receipt of non-study antibiotics or surgical procedures for persistent or worsening pneumonia from Day 1 to Day 18.	Outcome Assessment Visit 2 (Study Day 22 +/- 3 days)
Number of Participants Reporting Solicited Symptoms	This table summarizes the number and percentage of subjects experiencing any solicited events of mild, moderate or severe severity from Day 1 to Day 5	Outcome Assessment Visit 1 (Study Day 8 +/- 2 days)
Number of Participants Reporting Solicited Symptoms	This table summarizes the number and percentage of subjects experiencing any solicited events of mild, moderate or severe severity from Day 1 to Day 18	Outcome Assessment Visit 2 (Study Day 22 +/- 3 days)
Number of Participants Receiving Non-study Systemic Antibiotics for Persistent or Worsening Pneumonia During Medically Attended Visits	This table provides number and percentage of subjects who received non-study antibiotics for any use from Day 1 to Day 5	Outcome Assessment Visit 1 (Study Day 8 +/- 2 days)
Number of Participants Receiving Non-study Systemic Antibiotics for Persistent or Worsening Pneumonia During Medically Attended Visits	This table provides number and percentage of subjects who received non-study antibiotics for any use from Day 1 to Day 18	Outcome Assessment Visit 2 (Study Day 22 +/- 3 days)
Number of Participants Receiving Non-study Systemic Antibiotics for All Causes During Medically Attended Visits	This table provides number and percentage of subjects who received non-study antibiotics for any reason from Day 1 to Day 5	Outcome Assessment Visit 1 (Study Day 8 +/- 2 days)
Number of Participants Receiving Non-study Systemic Antibiotics for All Causes During Medically Attended Visits	This table provides number and percentage of subjects who received non-study antibiotics for any reason from Day 1 to Day 18	Outcome Assessment Visit 2 (Study Day 22 +/- 3 days)

Collaborators and Investigators

• Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Publications and helpful links

General Publications

• Pettigrew MM, Kwon J, Gent JF, Kong Y, Wade M, Williams DJ, Creech CB, Evans S, Pan Q, Walter EB, Martin JM, Gerber JS, Newland JG, Hofto ME, Staat MA, Fowler VG, Chambers HF, Huskins WC; Antibacterial Resistance Leadership Group. Comparison of the Respiratory Resistomes and Microbiota in Children Receiving Short versus Standard Course Treatment for Community-Acquired Pneumonia. mBio. 2022 Apr 26;13(2):e0019522. doi: 10.1128/mbio.00195-22. Epub 2022 Mar 24.
• Williams DJ, Creech CB, Walter EB, Martin JM, Gerber JS, Newland JG, Howard L, Hofto ME, Staat MA, Oler RE, Tuyishimire B, Conrad TM, Lee MS, Ghazaryan V, Pettigrew MM, Fowler VG Jr, Chambers HF, Zaoutis TE, Evans S, Huskins WC; The DMID 14-0079 Study Team. Short- vs Standard-Course Outpatient Antibiotic Therapy for Community-Acquired Pneumonia in Children: The SCOUT-CAP Randomized Clinical Trial. JAMA Pediatr. 2022 Mar 1;176(3):253-261. doi: 10.1001/jamapediatrics.2021.5547.

Study record dates

Study Major Dates

• Study Start (Actual): December 2, 2016
• Primary Completion (Actual): December 16, 2019
• Study Completion (Actual): December 16, 2019

Study Registration Dates

• First Submitted: September 1, 2016
• First Submitted That Met QC Criteria: September 1, 2016
• First Posted (Estimate): September 8, 2016

Study Record Updates

• Last Update Posted (Actual): February 3, 2021
• Last Update Submitted That Met QC Criteria: January 14, 2021
• Last Verified: April 5, 2017

More Information

Terms related to this study

• Keywords: Pneumonia; Therapy; Antimicrobial; Beta-Lactam; Short Course; Standard Course
• Additional Relevant MeSH Terms: Infections; Respiratory Tract Infections; Respiratory Tract Diseases; Lung Diseases; Pneumonia; Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Enzyme Inhibitors; Anti-Bacterial Agents; beta-Lactamase Inhibitors; Amoxicillin; Clavulanic Acid; Clavulanic Acids; Amoxicillin-Potassium Clavulanate Combination; Cefdinir
• Other Study ID Numbers: 14-0079; HHSN272201300023I

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No