Assessment of Drug-Drug Interactions of Androxal With Cytochrome P450 Isoenyzmes in Healthy Males

August 7, 2014 updated by: Repros Therapeutics Inc.

AN OPEN-LABEL, MULTIPLE DOSE STUDY TO ASSESS THE DRUG-DRUG INTERACTIONS OF ANDROXAL WITH CYTOCHROME P450 ISOENZYMES IN HEALTHY MALE SUBJECTS

The primary objective of this study is to assess the drug-drug interactions of Androxal with cytochrome P450 isoenzymes, CYP1A2, CYP2C8, CYP2C9, CYP2C19, CYP2D6, and CYP3A4 in healthy male subjects administered 25 mg Androxal once daily for 3 days. Secondly, the safety and tolerability of Androxal will be determined in healthy male subjects administered Androxal 25 mg daily for 3 days.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Speak, read, and understand English or Spanish and is willing and able to provide written informed consent on an institutional review board (IRB)-approved form prior to the initiation of any study procedures;
  • Healthy male, between the ages of 18 and 60 years; body mass index (BMI) 19.0-29.9.
  • All laboratory tests either within the normal range or assessed as not clinically significant by the Principal Investigator. Any clinically significant deviations outside of the normal range in the opinion of the Principal Investigator will require sponsor approval. A negative hepatitis B surface antigen, hepatitis C antibody or HIV antibody test result within the previous 3 months may be used instead of obtaining a screening laboratory sample for these laboratory tests;
  • Ability to complete the study in accordance with the protocol.

Exclusion Criteria:

  • Known hypersensitivity to Clomid;
  • A clinically significant laboratory abnormality or other clinical findings indicative of a clinically significant exclusionary disease including hepatic insufficiency, renal insufficiency, unstable coronary artery disease, malignancy other than basal cell carcinoma or squamous cell carcinoma of the skin or stroke;
  • A positive hepatitis screen including hepatitis surface B antigen (HBsAg) and hepatitis C antibody;
  • A positive test result for HIV;
  • Positive results from a urine screen for substances of abuse;
  • A recent history of alcoholism (< 2 years) or of moderate alcohol use (greater than an average of 3 drinks per day or a total of 21 drinks per week) or use of alcohol within 24 hours prior to receiving the first dose of study medication;
  • Use of any recreational drugs within the past year or a previous history of drug abuse;
  • Use of an investigational drug or product, or participation in a drug research study within 30 days prior to receiving study medication;
  • A clinically significant electrocardiogram (ECG) abnormality;
  • A history of difficulty with phlebotomy;
  • Donation of blood (1 pint or more) within 30 days, or plasma within 7 days prior to receiving study medication;
  • Use of any prescription drug therapy within 14 days prior to receiving study medication;
  • Use of any over-the-counter (OTC) drugs for therapeutic purposes within 48 hours prior to receiving study medication; Use of dietary or herbal supplements 14 days prior to study or megavitamin supplements within 48 hours prior to receiving study medication;
  • Consumption of any caffeine containing foods or beverages within 48 hours prior to receiving study medication;
  • Consumption of any grapefruit or grapefruit-containing juices, vegetables from the mustard green family, and charbroiled meat within 72 hours prior to receiving study medication;
  • Current smoker or user of any tobacco products that has smoked in last 30 or 60 days;
  • Any condition which, in the opinion of the Principal Investigator, could interfere with the subject's ability to provide informed consent, comply with study instructions, possibly confound interpretation of study results, or endanger the subject if he took part in the study;
  • Classified as a cytochrome P450 isoenzyme 2D6 (CYP2D6) "poor metabolizer" as determined by genotyping at the screening visit
  • Use of a monoamine oxidase (MAO) Inhibitor in the previous 28 days prior to dose.
  • Concurrent use of cimetidine, levodopa, amantadine, other antipsychotics or antidepressants.
  • Type I or Type II diabetes
  • Clinical evidence of cirrhosis or biopsy proven cirrhosis of any etiology
  • Screening liver function tests (ALT, AST, Bil, Alk. Phos) greater than upper limit of normal
  • History of hypertension with BP > 150/95 mmHg seated at screening
  • History of chronic pancreatitis or cholelithiasis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Androxal
Androxal 25 mg capsules once a day for 7 days
Drug: Androxal
Other Names:
  • enclomiphene citrate
Active Comparator: Placebo Androxal
Drug: Placebo

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Drug-Drug Interaction
Time Frame: 3 days
The primary objective of this study is to assess the drug-drug interactions of Androxal with cytochrome P450 isoenzymes, CYP1A2, CYP2C8, CYP2C9, CYP2C19, CYP2D6, and CYP3A4 in healthy male subjects administered 25 mg Androxal once daily for 3 days.
3 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Repros Therapeutics Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 18, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 18, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 25, 2013

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 11, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 7, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2014

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ZA-106

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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