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CompletedNCT00841698Updated Aug 19, 2024Results posted

Paroxetine Hydrochloride 40 mg Tablets Under Fasting Conditions

A Phase 1 interventional study of Paroxetine HCl and Paxil® in Healthy, sponsored by Teva Pharmaceuticals USA. Completed at 1 site in Canada. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-08-19.

Sponsored by Teva Pharmaceuticals USA · Phase 1, Interventional, and Other

Phase
Phase 1
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The objective of this study is to compare the rate and extent of absorption of paroxetine hydrochloride 40 mg film-coated tablets (test) versus Paxil® (reference) administered as 1 x 40 mg film-coated tablet under fasting conditions.

Read the detailed description

Criteria for Evaluation: FDA Bioequivalence Criteria

Statistical Methods: FDA bioequivalence statistical methods

02

Conditions studied

  • Healthy

Keywords

  • Bioequivalence
  • Healthy Subjects
03

In context

Lead sponsor

Teva Pharmaceuticals USA is the lead sponsor of 171 studies on the registry; none are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 4 (80%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Subjects will be females and/or males, non-smokers, 18 years of age and older.
  • Female Subjects will be post-menopausal or surgically sterilized.
  • Post-menopausal status is defined as absence of menses for the past 12 months,
  • Sterile status is defined as hysterectomy, bilateral oophorectomy or tubal ligation at least 6 months ago.

Exclusion criteria

Exclusion Criteria

Subjects to whom any of the following applies will be excluded from the study:

  • Clinically significant illnesses within 4 weeks of the administration of study medication.
  • Clinically significant surgery within 4 weeks prior to the administration of the study medication.
  • Any clinically significant abnormality found during medical screening.
  • Subjects with a history of renal, hepatic or cardiovascular disease, tuberculosis, epilepsy, asthma, diabetes, psychosis or glaucoma will not be eligible for this study.
  • History or presence of any clinically significant gastrointestinal pathology (e.g. chronic diarrhea, inflammatory bowel diseases), unresolved gastrointestinal symptoms (e.g. diarrhea, vomiting), liver or kidney disease or other conditions known to interfere with the absorption, distribution, metabolism or excretion of the drug.
  • Subjects with a history of seizures.
  • Subjects who have already had an episode of mania.
  • Any reason which, in the opinion of the medical subinvestigator, would prevent the subject from participating in the study.
  • Abnormal laboratory tests judged clinically significant.
  • Positive urine drug screen at screening.
  • Positive testing for hepatitis B, hepatitis C or HIV at screening.
  • ECG abnormalities (clinically significant) or vital sign abnormalities (systolic blood pressure lower than 90 or over 140 mmHg, or diastolic blood pressure lower than 50 or over 90; or heart rate less than 50 bpm or over 100 bpm) at screening.
  • Subjects with BMI ≥30.0.
  • History of significant alcohol abuse within six months of the screening visit or any indication of the regular use of more than two units of alcohol per day (1 Unit = 150 mL of wine or 360 mL of beer or 45 mL of alcohol 40%).
  • History of drug abuse or use of illegal drugs: use of soft drugs (such as marijuana) within 3 months of the screening visit or hard drugs (such as cocaine, phencyclidine (PCP) and crack) within 1 year of the screening visit.
  • Any food allergy, intolerance, restriction or special diet that, in the opinion of the medical subinvestigator, contraindicates the subject's participation in this study.
  • History of allergic reactions to paroxetine hydrochloride or other related drugs (e.g. citalopram hydrobromide, fluoxetine hydrochloride, fluvoxamine maleate and sertraline hydrochloride).
  • History of allergic reactions to heparin.
  • Use of any drugs known to induce or inhibit hepatic drug metabolism (examples of inducers: barbiturates, carbamazepine, phenytoin, glucocorticoids, rifampin/rifabutin; examples of inhibitors: antidepressants, cimetidine, diltiazem, erythromycin, ketoconazole, MAO inhibitors, neuroleptics, verapamil, quinidine, valproic acid, use of an investigational drug or participation on an investigation study within 30 days prior to the administration of the study medication.
  • Use of prescription medication within 14 days prior to administration of study medication or over-the-counter products )including natural products, vitamins, garlic as a supplement) within 7 days prior to administration of study medication, except for topical products without systemic absorption.
  • Subjects who have had a depot injection or an implant of any drug 3 months prior to administration of study medication.
  • Donation of plasma (500 mL) within 7 days. Donation or loss of whole blood prior to administration of the study medication as follows:
  • Less than 300 mL of whole blood within 30 days or
  • 300 mL to 500 mL of whole blood within 45 days or
  • more than 500 mL of whole blood within 56 days.
  • Positive alcohol breath test at screening.
  • Subjects who have used tobacco in any form within the 90 days preceding study drug administration.
  • Intolerance to venipuncture.

Additional exclusion criteria for female subjects only:

  • Breast feeding subjects.
  • Positive urine pregnancy test at screening (performed on all females).
05

Study design

Phase
Phase 1
Primary purpose
Other
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
50 participants (actual)

Study arms

  • Experimental
    Paroxetine

    Paroxetine HCl 40 mg Tablet (test) dosed in first period followed by Paxil® 40 mg Tablet (reference) dosed in second period

    Drug: Paroxetine HCl

  • Active comparator
    Paxil®

    Paxil 40 mg Tablet (reference) dosed in first period followed by Paroxetine HCl 40 mg Tablet (test) dosed in second period

    Drug: Paxil®

Interventions

  • DrugParoxetine HCl

    40 mg Film-Coated Tablet

  • DrugPaxil®

    40 mg Film-Coated Tablet

06

What researchers measure

Primary outcomes

  1. Cmax - Maximum Observed Concentration (of Paroxetine in Plasma)

    Bioequivalence based on Cmax

    Time frame: Blood samples collected over 120 hour period

  2. AUC0-inf - Area Under the Concentration-time Curve From Time Zero to Infinity (Extrapolated)

    Bioequivalence based on AUC0-inf

    Time frame: Blood samples collected over 120 hour period

  3. AUC0-t - Area Under the Concentration-time Curve From Time Zero to Time of Last Non-zero Concentration (Per Participant)

    Bioequivalence based on AUC0-t

    Time frame: Blood samples collected over 120 hour period

07

Results

Posted Aug 18, 2009

Participant flow

First Intervention
Participant flow — First Intervention
MilestoneParoxetine (Test) FirstPaxil® (Reference First)
Started2525
Completed2425
Not completed10
Withdrew: Withdrawal by subject10
Washout: 2 Weeks
Participant flow — Washout: 2 Weeks
MilestoneParoxetine (Test) FirstPaxil® (Reference First)
Started2425
Completed2425
Not completed00
Second Intervention
Participant flow — Second Intervention
MilestoneParoxetine (Test) FirstPaxil® (Reference First)
Started2425
Completed2425
Not completed00

Outcome measures

PrimaryCmax - Maximum Observed Concentration (of Paroxetine in Plasma)

Bioequivalence based on Cmax

Time frame:
Blood samples collected over 120 hour period
Reported as:
Mean · ng/mL
Cmax - Maximum Observed Concentration (of Paroxetine in Plasma)
ng/mLParoxetinePaxil®
Cmax - Maximum Observed Concentration (of Paroxetine in Plasma)20.39 ± 12.6320.67 ± 12.00
Statistical analysis
  • Paroxetine vs Paxil® · Ratio of ls means x 100: 97.34 · 90% CI 91.67 to 103.35Bioequivalence is established when 90% Confidence Interval falls within 80-125.
PrimaryAUC0-inf - Area Under the Concentration-time Curve From Time Zero to Infinity (Extrapolated)

Bioequivalence based on AUC0-inf

Time frame:
Blood samples collected over 120 hour period
Reported as:
Mean · ng*h/mL
AUC0-inf - Area Under the Concentration-time Curve From Time Zero to Infinity (Extrapolated)
ng*h/mLParoxetinePaxil®
AUC0-inf - Area Under the Concentration-time Curve From Time Zero to Infinity (Extrapolated)653.84 ± 774.21673.45 ± 782.97
Statistical analysis
  • Paroxetine vs Paxil® · Ratio of ls means x 100: 94.46 · 90% CI 90.22 to 98.89Bioequivalence is established when 90% Confidence Interval falls within 80-125.
PrimaryAUC0-t - Area Under the Concentration-time Curve From Time Zero to Time of Last Non-zero Concentration (Per Participant)

Bioequivalence based on AUC0-t

Time frame:
Blood samples collected over 120 hour period
Reported as:
Mean · ng*h/mL
AUC0-t - Area Under the Concentration-time Curve From Time Zero to Time of Last Non-zero Concentration (Per Participant)
ng*h/mLParoxetinePaxil®
AUC0-t - Area Under the Concentration-time Curve From Time Zero to Time of Last Non-zero Concentration (Per Participant)602.86 ± 650.05618.14 ± 632.70
Statistical analysis
  • Paroxetine vs Paxil® · Ratio of ls means x 100: 94.83 · 90% CI 89.96 to 99.96Bioequivalence is established when 90% Confidence Interval falls within 80-125.

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Paroxetine (Test) FirstPaxil® (Reference First)Total
<=18 years000
Between 18 and 65 years252550
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Paroxetine (Test) FirstPaxil® (Reference First)Total
Female358
Male222042
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Paroxetine (Test) FirstPaxil® (Reference First)Total
Caucasian242246
Black112
American Hispanic022
Region of Enrollment
Region of Enrollment(participants)Paroxetine (Test) FirstPaxil® (Reference First)Total
Canada252550
08

Study locations

1 site
  • Anapharm Inc.
    Sainte-Foy, Quebec, Canada
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00841698
Lead sponsor
Teva Pharmaceuticals USA
First posted
Feb 11, 2009
Start date
Oct 2002
Primary completion
Oct 2002
Completion
Oct 2002
Results posted
Aug 18, 2009
Last update
Aug 19, 2024

Study contacts

Benoit Girard, MD
principal investigator · Anapharm

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

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