The Influence of GINkGo Biloba on the Pharmacokinetics of the UGT Substrate raltEgraviR (GINGER) (GINGER)

November 26, 2020 updated by: Radboud University Medical Center
The objective of this study is to evaluate the effect of ginkgo biloba (steady state) on the pharmacokinetics of a single dose of the UGT-substrate raltegravir. Furthermore the safety profile of the combination is studied.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Ginkgo biloba is an alternative medicine that is popular among HIV-infected patients because if its claimed positive effects on memory, concentration and depression. Alternative medicine can cause drug-drug interactions with regular HIV-medication. Raltegravir is a newly developed HIV integrase inhibitor. It is metabolized in the liver by UGT1A1 and therefore its pharmacokinetic profile can be influenced by inhibitors or inducers of UGT1A1. So far there are no data of the potential effect of ginkgo biloba on glucuronidation in vivo. The current study is designed to evaluate the potential inductive effect of ginkgo biloba on the pharmacokinetics of raltegravir and the safety profile when used in combination.

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • 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

  • Netherlands
      • Nijmegen, Netherlands
        • CRCN, Radboud University Medical Centre

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

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subject is at least 18 and not older than 55 years at screening.
  • Subject does not smoke more than 10 cigarettes, 2 cigars, or 2 pipes per day for at least 3 months prior to the first dosing
  • Subject has a Quetelet Index (Body Mass Index) of 18 to 30 kg/m2, extremes included.
  • Subject is able and willing to sign the Informed Consent Form prior to screening evaluations.
  • Subject is in good age-appropriate health condition as established by medical history, physical examination, electrocardiography, results of biochemistry, haematology and urinalysis testing within 4 weeks prior to Day 1. Results of biochemistry, haematology and urinalysis testing should be within the laboratory's reference ranges. If laboratory results are not within the reference ranges, the subject is included on condition that the Investigator judges that the deviations are not clinically relevant. This should be clearly recorded.
  • Subject has a normal blood pressure and pulse rate, according to the Investigator's judgement.

Exclusion Criteria:

  • Documented history of sensitivity/idiosyncrasy to medicinal products or excipients.
  • Positive HIV test.
  • Positive hepatitis B or C test.
  • Pregnant female (as confirmed by an HCG test performed less than 4 weeks before Day 1) or breast-feeding female. Female subjects of childbearing potential without adequate contraception, e.g. hysterectomy, bilateral tubal ligation, (non-hormonal) intrauterine device, total abstinence, double barrier methods, or two years post-menopausal. They must agree to take precautions in order to prevent a pregnancy throughout the entire conduct of the trial.
  • Therapy with any drug (for two weeks preceding dosing), except for paracetamol.
  • Relevant history or presence of pulmonary disorders (especially COPD), cardiovascular disorders, neurological disorders (especially seizures and migraine), psychiatric disorders, gastro-intestinal disorders, renal and hepatic disorders, hormonal disorders (especially diabetes mellitus), coagulation disorders.
  • Relevant history or current condition that might interfere with drug absorption, distribution, metabolism or excretion.
  • History of or current abuse of drugs, alcohol or solvents.
  • Inability to understand the nature and extent of the trial and the procedures required.
  • Participation in a drug trial within 60 days prior to Day 1.
  • Donation of blood within 60 days prior to Day 1.
  • Febrile illness within 3 days before Day 1.

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: Other
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: ginkgo biloba + raltegravir
15 days ginkgo biloba 120mg BID + raltegravir 400mg SD
Drug: raltegravir single dose
single dose 400mg raltegravir
Other Names:
  • Isentress
Drug: ginkgo biloba multiple dose
15 days ginkgo biloba 120mg BID
Other Names:
  • Tavonin
Active Comparator: raltegravir
single dose raltegravir 400mg
Drug: raltegravir single dose
single dose 400mg raltegravir
Other Names:
  • Isentress

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
raltegravir concentrations
Time Frame: pharmacokinetic curve after a single dose of raltegravir alone or added to steady state ginkgo biloba
To determine the effect of chronic use of ginkgo biloba on the single-dose pharma-cokinetics (AUC0-inf, AUC0-12, Cmax, C12) of raltegravir 400mg in healthy volunteers.
pharmacokinetic curve after a single dose of raltegravir alone or added to steady state ginkgo biloba

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
adverse events
Time Frame: during entire study
To determine the safety of a single dose of raltegravir 400mg when combined with chronic use of ginkgo biloba.
during entire study

Collaborators and Investigators

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

Sponsor

Radboud University Medical Center

Collaborators

Merck Sharp & Dohme LLC

Investigators

  • Principal Investigator: David M Burger, PharmD, PhD, Radboud University Medical Center

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

November 1, 2010

Primary Completion (Actual)

March 1, 2011

Study Completion (Actual)

May 1, 2011

Study Registration Dates

First Submitted

November 22, 2010

First Submitted That Met QC Criteria

November 22, 2010

First Posted (Estimate)

November 23, 2010

Study Record Updates

Last Update Posted (Actual)

November 30, 2020

Last Update Submitted That Met QC Criteria

November 26, 2020

Last Verified

November 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UMCN-AKF 10.02

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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