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Bioequivalence of Alprazolam Sublingual vs Oral Tablets

Information source: Pfizer
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Healthy

Intervention: alprazolam sublingual tablet (Drug); alprazolam oral tablet (Drug)

Phase: Phase 1

Status: Completed

Sponsored by: Pfizer

Official(s) and/or principal investigator(s):
Pfizer CT.gov Call Center, Study Director, Affiliation: Pfizer


This study tests the assumption that the bioavailability of alprazolam from a new sublingual formulation is the same as that from a standard orally administered tablet.

Clinical Details

Official title: Open-Label, Randomized, Single-Dose, 2-Way Crossover Pivotal Bioequivalence Study Comparing Alprazolam Immediate Release (IR) Tablets (Administered Orally) And Alprazolam Sublingual (SL) Tablets (Administered Sublingually)

Study design: Allocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Basic Science

Primary outcome: Alprazolam bioavailability assessed as area under the concentration-time curve (AUC) and maximum concentration (Cmax)

Secondary outcome:

Alprazolam time of maximum concentration (Tmax) and half life

Adverse events, clinical laboratory tests, vital signs


Minimum age: 21 Years. Maximum age: 55 Years. Gender(s): Both.


Inclusion Criteria:

- Healthy male or female subjects

- BMI 17. 5 - 30. 5

- Must provide informed consent

Exclusion Criteria:

- Clinically significant disease

- Narrow angle glaucoma

- Positive drug screen

Locations and Contacts

Pfizer Investigational Site, Ahmedabad, Gujarat 380 015, India
Additional Information

To obtain contact information for a study center near you, click here.

Starting date: August 2009
Last updated: November 11, 2009

Page last updated: August 23, 2015

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