Clinical trial NCT03103334: A Bioavailability Study of Methotrexate 25 mg Administered by Needle Injection and a Pre Filled Needle-free Device in Healthy Volunteers.
Official title: A Single Center Single Dose Open-label Randomized Two Period Crossover Study to Determine the Bioavailability of Two Formulations of Methotrexate 25 mg Administered by Needle Injection and a Pre-filled Needle-free Device in at Least 48 Healthy Volunteers.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Healthy
Lead sponsor: Crossject
Sponsor class: INDUSTRY
First posted: 2017-04-06
Enrollment: 58
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: TREATMENT

Brief summary: The objective is to determine whether the test product, Methotrexate 40 mg/mL solution for injection administered subcutaneously by the prefilled and needle-free delivery system Zeneo®, and the reference product, Methotrexate Biodim® 25 mg/mL, solution for injection administered subcutaneously by a conventional syringe with needle are bioequivalent.

Detailed description: ABSTRACT Objective: Zeneo1 is a needle-free injection device. We performed a pharmacokinetic study to investigate the bioequivalence of methotrexate administered subcutaneously using either the needle-free injection device or a conventional needle and syringe.

Research design and methods: This was a single-dose, open-label, laboratory-blind, randomized crossover study performed in adult healthy volunteers. Each participant received two methotrexate injections (each 25mg), one via needle-free injection device and one via conventional injection, with a 21-28 day wash-out interval between dosing. For each participant, the administration site for both injections was either the abdomen or the thigh.

Main outcome measures: The primary pharmacokinetic outcome parameters were AUC(0-t) and Cmax.

Bioequivalence was assessed by standard criteria: whether 90% confidence intervals of geometric mean ratios for the two administration methods were within 80-125%.

Results: Fifty-two individuals completed the study. Bioequivalence criteria were met for AUC(0-t), for the overall analysis (both injection sites: 90% confidence interval: 99.4-103.1%), and for each injection site separately. Bioequivalence was similarly demonstrated with AUC(0-1). Bioequivalence criteria for Cmax were fulfilled for abdominal administration but not for the overall analysis. Injection via the needle- free injection device was well tolerated.

Limitations: Limitations include conducting the study in healthy volunteers and the relatively small subject number (albeit satisfactory for bioequivalence).

Conclusions: This study shows that methotrexate injection via needle-free injection device is bioequivalent to a conventional needle and syringe in relation to AUC(0-t) and AUC(0-1). Studies of needle-free injection device use in patients requiring methotrexate therapy are planned.

Eligibility criteria: Inclusion Criteria:

* Healthy subjects
* BMI between 18.5 and 30 kg/m2
* Body mass \> 60 kg
* Non-tobacco user
* Written consent given for participation in the study

Exclusion Criteria:

* Evidence of clinically relevant oral, cardiovascular, hematologic, gastrointestinal, hepatic, renal, endocrine, pulmonary, neurologic, psychiatric or skin disorder
* Heavy alcohol consumption and regular exposure to drug of abuse

Primary outcomes:
measure: Maximum observed plasma concentration (Cmax).
timeFrame: serial pharmacokinetic plasma concentrations were drawn prior pre-dose and post-dose at 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16 and 24 hours
measure: Area under the plasma concentration versus time curve (AUC) time zero to time of the last quantifiable concentration (AUC(0-t)).
timeFrame: serial pharmacokinetic plasma concentrations were drawn prior pre-dose and post-dose at 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16 and 24 hours
Secondary outcomes:
Other outcomes:
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