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Drug-Drug Interaction Study of Voriconazole With Clarithromycin.

Registration Number
NCT05380245
Lead Sponsor
Abdul Wali Khan University Mardan
Brief Summary

The current study evaluated the Pharmacokinetic (PK) drug-drug interaction (PK-DDI) of voriconazole with clarithromycin in healthy male volunteers. The drug interaction study was designed as a single oral dose, open-label, crossover, and randomized trial. In the first phase of the study, the principal investigator developed a high-performance-liquid chromatography (HPLC) method and validation according to standard ICH guidelines for the quantification of voriconazole in the biological matrix. During the second step, Enrolled volunteers were divided randomly into group A and group B by the "permuted block randomization" technique. Then, voriconazole either alone (2 x 200mg, tab, P/O) or in combination with clarithromycin (Voriconazole 2 x 200mg, tab + clarithromycin 500mg, tab, P/O) was administered to enrolled volunteers in two sequences. Finally, sample collection was carried out and blood samples were collected at specified time periods (i.e., 0.0 (pre-dose), 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 6.0, 8.0, 12, and 24 hours) in EDTA or heparinized tubes from the enrolled human volunteers. Further processing of the sample was done for extractions and subsequent analysis with the developed analytical method.

Detailed Description

Study Design and Ethical Approval: The drug interaction study was designed as a single oral dose, open-label, randomized, cross-over study of healthy volunteers. The ethical approval of the protocol was taken from the Advanced Studies and Research Board (ASRB) of the Pharmacy department, Abdul Wali Khan University, Mardan before initiation. This study followed the "ethical principles of the Helsinki declaration for medical research involving human subjects" and "good clinical practice guidelines". The clinical trial of this study followed the guidelines of CONSORT. Written consent was obtained from all included volunteers in the DDI study. The study was comprised of two treatment sequences with a two-week washout period

Randomization and Drug administration: Enrolled volunteers were divided randomly into Group A and Group B by the "permuted block randomization" technique. Computed the volunteer data into an excel sheet and applied a RAND\* function; selected two groups (G-A and G-B) sized, finally assigned 6 participants in each study group for two (Voriz (alone) or Voriz + CLRM) intervention arms, for the execution of block randomization. A balance (1:1) was acquired across both intervention arms through this randomization technique. Treatment drugs were administered to enrolled volunteers in two sequences,

Sequence-I: In the first phase, group-A volunteers on day-1 received oral voriconazole (2 x 200mg, tab, P/O) while group-B volunteers received oral clarithromycin (500mg, tab, P/O) along with voriconazole (2 x 200mg, tab, P/O). A two-week wash-out period was allocated that started on day-2 to day-15 for avoiding the carry-over effect.

Sequence-II: On day-16, the second phase of the trial was conducted in which group-A volunteers received voriconazole (2 x 200mg, tab, P/O) along with clarithromycin (500mg, tab, P/O) while group-B volunteers received Voriz (2 x 200mg, tab, P/O) only. Voriconazole and clarithromycin were administered to the overnight fasted volunteers corresponding to the sequences. All volunteers took the medication with a glass of water (250mL). On day-1 and 16 (treatment days), standard breakfast and lunch were served two and six hours after drug administration to all volunteers, respectively.

Recruitment & Eligibility

Status
COMPLETED
Sex
Male
Target Recruitment
12
Inclusion Criteria

• Male Pakistani volunteers in good health aged 18-35 years were enrolled as participants in this study.

The selection was based on:

  • A complete detailed medical history,
  • Clinical examination,
  • Voriconazole hypersensitivity test,
  • Evaluation of various biochemical tests like Blood Glucose Level, Hemoglobin (Hb) Level, Serum Glutamic-Pyruvic Transaminase (SGPT) Or Alanine Amino Transferase and Aspartate (ALT and AST, respectively) Level, Urine Test, Albumin to Creatinine Ratio (ACR) Test, Glomerular Filtration Rate (GFR) Level, etc.
Exclusion Criteria
  • Those volunteers were having a history of voriconazole hypersensitivity reaction were excluded from the study.
  • Deviation from normal values in the biochemical test report was excluded from the study.
  • Having any pathology like chronic renal disease, and hepatic impairment was excluded from the study.
  • Having any cardiovascular, gastrointestinal tract, and hematopoietic disorders were excluded from the study.
  • Alcohol addicted, smokers and volunteers who cannot sign the permission consent form were excluded from the study.

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
Treatment Voriconazole + Clarithromycin, then Voriconazole (alone).Clarithromycin 500 mg x 1TabletsOn Day-1, Group-B participants first received Voriconazole (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral) along with Clarithromycin (Name of medication of Intervention Formulation: Tablet Klaricid, Dose: 500mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral).After a washout period of two weeks. Then, on Day-16 they received Voriconazole (alone) (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral).
Treatment Voriconazole (alone), then Voriconazole + Clarithromycin.Voriconazole 200 mg x 2 TabletsOn Day-1, Group-A participants first received Voriconazole (alone) (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral). After a washout period of two weeks. Then, on Day-16 they received Voriconazole (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral) along with Clarithromycin (Name of medication of Intervention Formulation: Tablet Klaricid, Dose: 500mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral).
Treatment Voriconazole + Clarithromycin, then Voriconazole (alone).Voriconazole 200 mg x 2 TabletsOn Day-1, Group-B participants first received Voriconazole (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral) along with Clarithromycin (Name of medication of Intervention Formulation: Tablet Klaricid, Dose: 500mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral).After a washout period of two weeks. Then, on Day-16 they received Voriconazole (alone) (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral).
Treatment Voriconazole (alone), then Voriconazole + Clarithromycin.Clarithromycin 500 mg x 1TabletsOn Day-1, Group-A participants first received Voriconazole (alone) (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral). After a washout period of two weeks. Then, on Day-16 they received Voriconazole (Dose: 400mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral) along with Clarithromycin (Name of medication of Intervention Formulation: Tablet Klaricid, Dose: 500mg, Dosage form: Tablet, Frequency: Once (OD), Duration of administration: Single Dose, Kind of administration: Oral).
Primary Outcome Measures
NameTimeMethod
Plasma Concentration of voriconazoleAt "Day 1" Pre-dose, 0.5hour, 1hour, 1.5hour, 2hour, 3hour, 4hour, 6hour, 8hour, 12hour, 24hour post-dose and At "Day 16" Pre-dose, 0.5hour, 1hour, 1.5hour, 2hour, 3hour, 4hour, 6hour, 8hour, 12hour, 24hour post-dose.

Determine the Plasma Concentration particularly the Maximum Plasma Concentration (Cmax) of voriconazole either alone or co-administration with clarithromycin.

Area under the Plasma Concentration versus Time Curve (AUC) of voriconazoleAt "Day 1" Pre-dose, 0.5hour, 1hour, 1.5hour, 2hour, 3hour, 4hour, 6hour, 8hour, 12hour, 24hour post-dose and At "Day 16" Pre-dose, 0.5hour, 1hour, 1.5hour, 2hour, 3hour, 4hour, 6hour, 8hour, 12hour, 24hour post-dose.

Determine the Area under the Plasma Concentration versus Time Curve (AUC) of voriconazole either alone or co-administration with clarithromycin.

Secondary Outcome Measures
NameTimeMethod
Maximum Time to Reach (Cmax) of voriconazole (Tmax)At "Day 1" Pre-dose, 0.5hour, 1hour, 1.5hour, 2hour, 3hour, 4hour, 6hour, 8hour, 12hour, 24hour post-dose and At "Day 16" Pre-dose, 0.5hour, 1hour, 1.5hour, 2hour, 3hour, 4hour, 6hour, 8hour, 12hour, 24hour post-dose.

Tmax of voriconazole either alone or co-administration with clarithromycin.

Trial Locations

Locations (1)

Medical Dispensary, Abdul Wali Khan University Mardan, Pakistan.

🇵🇰

Mardan, KPK, Pakistan

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