To Assess the Effect of AZD1722 on the Pharmacokinetics of Cefadroxil in Healthy Volunteers

Study Overview
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Brief Summary
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A study to evaluate the effect of repeated oral doses of AZD1722 on the pharmacokinetics of Cefadroxil

Detailed Description
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A Phase 1, Single-center, Randomized, 2-Way Cross-over, Open-label Study to Evaluate the Effect of Oral Repeated Doses of AZD1722 on the Pharmacokinetics of Oral Cefadroxil in Healthy Volunteers

Official Title
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A Phase 1, Single-center, Randomized, 2-Way Cross-over, Open-label Study to Evaluate the Effect of Oral Repeated Doses of AZD1722 on the Pharmacokinetics of Oral Cefadroxil in Healthy Volunteers

Conditions
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Healthy Volunteers

Intervention / Treatment
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* Drug: Treatment A (cefadroxil alone)
* Drug: Treatment B - AZD1722 followed by cefadroxil


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria:- 1. Healthy male and female volunteers aged ≥18 years to ≤50 years (inclusive) with suitable veins for cannulation or repeated venepuncture 2. Females could be of non-childbearing potential and child bearing potential Females of non-child bearing potential should be Post-menopausal, documentation of irreversible surgical sterilization by hysterectomy, bilateral oophorectomy or bilateral salpingectomy but not tubal ligation. Females of childbearing potential must have a negative pregnancy test at screening and must not be lactating, using one of the following effective methods to avoid pregnancy during the treatment periods, must have an established use of oral, injected, or implanted hormonal methods of contraception, placement of an intrauterine device (IUD) or intrauterine system, use a barrier method of contraception: condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal. Male healthy volunteers with a partner of childbearing potential must agree to avoid fathering a child, and refrain from donating sperm, from the first day of dosing until at least 3 months after last dose of investigational product, and therefore be either sterile (with the appropriate post-vasectomy documentation of the absence of sperm in the ejaculate) or agree to use, one of the following approved methods of contraception: a male condom with spermicide; a sterile sexual partner or use by female sexual partner of an acceptable form of effective contraception (see above) 3. Have a body mass index (BMI) ≥18 and ≤30 kg/m2 and weigh at least 50 kg and no more than 100 kg Exclusion Criteria: 1.History of any clinically significant disease or disorder which, in the opinion of the principal investigator, may either put the healthy volunteer at risk because of participation in the study, or influence the results or the healthy volunteer's ability to participate in the study. 2.History or presence of GI, hepatic or renal disease including GI surgery other than appendectomy or any other condition known to interfere with absorption, distribution, metabolism or excretion of drugs. 3.Any clinically significant illness, medical/surgical procedure or trauma within 4 weeks of the first administration of the investigational product. 3 History of severe allergy/hypersensitivity or ongoing allergy/hypersensitivity, as judged by the principal investigator or history of hypersensitivity to drugs with a similar chemical structure or class to AZD1722 or cefadroxil. 4. Has received another new chemical entity (defined as a compound which has not been approved for marketing) or has participated in any other clinical study that included drug treatment within at least 30 days of the first administration of investigational product in this study. 5. Loose stools for ≥2 days in the past 7 days before investigational product administration. Use of medications that are known to affect stool consistency and/or GI motility, including fibre supplements, anti diarrheals, prokinetic drugs, enemas, probiotic medications or supplements; or salt or electrolyte supplements containing sodium, potassium, chloride, or bicarbonate formulations during the past 7 days before randomization

Ages Eligible for Study
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Minimum Age: 18 Days
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Sequence 1 (Treatment A/B)<br>Subjects will be randomised to receive Treatment A in Period 1 followed by Treatment B in period 2 | Drug: Treatment A (cefadroxil alone)<br>* A single 500 mg oral dose of cefadroxil will be given on the morning of Day 1<br>Drug: Treatment B - AZD1722 followed by cefadroxil<br>* 15mg oral dose of AZD1722 will be given twice daily from Day 1 to Day 4 followed on the morning of Day 5 by a single dose of 15 mg AZD1722 taken together with a single 500mg dose of cefadroxil<br>|
| Experimental: Sequence 2 (Treatment B/A)<br>Subjects will be randomised to receive Treatment B in Period 1 followed by Treatment A in period 2 | Drug: Treatment A (cefadroxil alone)<br>* A single 500 mg oral dose of cefadroxil will be given on the morning of Day 1<br>Drug: Treatment B - AZD1722 followed by cefadroxil<br>* 15mg oral dose of AZD1722 will be given twice daily from Day 1 to Day 4 followed on the morning of Day 5 by a single dose of 15 mg AZD1722 taken together with a single 500mg dose of cefadroxil<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To evaluate the pharmacokinetics of cefadroxil when administered after AZD1722 by assessment of area under the concentration-time curve (AUC) and maximal plasma concentration (Cmax) of cefadroxil | Change in plasma area under the concentration-time curve (AUC) and maximal plasma concentration (Cmax) of cefadroxil after AZD1722 administration. | Blood sampling for cefadroxil: Predose, 0.5 hour, 1, 1.5, 2, 2.5, 4, 6, 8, 10, and 12 hours postdose on Day 1 in Treatment A and on Day 5 in Treatment B | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To evaluate the plasma concentrations of AZD1722 | To evaluate plasma concentrations of AZD1722 to be measured (no PK parameters derived) | Blood sampling for AZD1722: Predose, 1, 2, and 4 hours postdose, on Day 5 (Treatment B) | 
| To evaluate the pharmacodynamic outcomes of AZD1722 by the assessment of how AZD1722 effects stool consistency and frequency | Pharmacodynamic outcome of the effect on stool consistency and frequency | Stool frequency and stool consistency will be measured daily (24-hour period intervals) on Day -1 through Day 1 (Treatment A) and Day 1 through Day 5 (Treatment B) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Phase I, Healthy Volunteers