About this trial
1. Primary Objective:
o To evaluate the efficacy of intravenous azithromycin compared with meropenem in the treatment of extensively drug-resistant (XDR) enteric fever. 2. Secondary Objectives:
* To evaluate the fever defervescence and Salmonella Typhi eradication * To evaluate the cost-effectiveness of intravenous azithromycin versus meropenem in treating XDR enteric fever. 3. Exploratory Objectives:
* To evaluate the drug resistance against intravenous azithromycin versus in treating XDR enteric fever.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Participants will enrolled on following criteria
Voluntarily sign the written informed consent
Patient's of age 1-70 years with clinically suspected on physician decision or XDR enteric fever confirmed by blood culture and sensitivity tests.
Married females with negative pregnancy test.
Disqualifiers
Participants will excluded on following criteria
Pregnant, lactating women or women of childbearing age with positive pregnancy test at baseline.
Patients with known hypersensitivity (skin rashes, anaphylaxis) to azithromycin, meropenem, or any other macrolide or carbapenem antibiotics.
Blood culture and sensitivity tests reported positive culture with MDR S. typhi (non-susceptibility to at least one agent in three or more antimicrobial categories,) o
Trial design
Parallel
Treatments tested in this trial
Azithromycin
DrugAzithromycin 1g IV loading dose then 500mg IV OD
Meropenem Injection
DrugMeropenem 1000 mg IV Q8H
Treatment groups
Trial outcomes
Primary outcomes
Fever defervescence
Proportion of participants with fever defervescence of temperature 37 ℃ at Mid-treatment outcome (Day 7). Temperature will be monitored and documented in degrees centigrade (°C)
Salmonella Typhi eradication
Proportion of participants with Salmonella Typhi eradication in Blood culture test on day 3. After start of intervention, a clearance of blood culture will be monitor at day 3. if Salmonella Typhi in blood culture of day 3 will not eradicate, a second blood culture will be done on Day 7.
Secondary outcomes
Hospital Admission Days
Mean hospital length of stay (in days) will be compared between groups to evaluate differences in duration of hospitalization
Cumulative Treatment Duration
Average total treatment duration, expressed in number of days, will be compared across groups to assess differences in cumulative therapy requirements
Adverse Events Monitoring
Adverse events will be monitored throughout the study period, including abnormal clinical findings such as rash, pruritus, flushing, or angioedema of the face or extremities. Laboratory assessments (ECG and liver function tests) will be performed on Mid-treatment outcome (Day 7) to check any ECG changes and hepatotoxicity. Vital signs-including body temperature (°C), blood pressure (mmHg), and heart rate (beats/min) will be recorded daily from baseline (Day 1) to day of discharge from hospital.
Antimicrobial Resistance and Cost of treatment
Antimicrobial resistance will be assessed by monitoring any changes in the susceptibility pattern of Salmonella Typhi isolates during the study period. The direct cost of treatment will be calculated in Pakistani Rupees (PKR), based on the total cost of vials utilized throughout the treatment course, and will be compared between study groups to evaluate overall cost-effectiveness.
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