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Pharmacokinetic Study of Two Generic co-Formulations of Lopinavir/Ritonavir for HIV Infected Children (SURF) (SURF)

This study has been completed.
Information provided by:
Radboud University Identifier:
First received: April 23, 2008
Last updated: February 24, 2009
Last verified: February 2009

This pilot pharmacokinetic study is designed to exclude a large difference (>40%) in pharmacokinetics (esp. AUC) between two new Lopimune formulations and the branded formulation. The formal bioequivalence study with adequate power will be conducted by the manufacturer. In order to get data independently from the manufacturer and to have this information in an earlier phase, this small pilot study is initiated.

The initial study showed a declined bioavailability of the granules under fasting conditions. The study has been extended with an arm determining the pharmacokinetics of the granules after food (compared to the oral solution taken with food).

Condition Intervention Phase
HIV Infections
Drug: Lopinavir/ritonavir
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: The Pharmacokinetics of Two Generic co-Formulations of Lopinavir/Ritonavir for HIV Infected Children: a Pilot Study of Lopimune vs. the Branded Product (SURF Study).

Resource links provided by NLM:

Further study details as provided by Radboud University:

Primary Outcome Measures:
  • Plasma concentrations of lopinavir and ritonavir. [ Time Frame: 0 (predose), 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0, 24 and 32 hours post ingestion (11 samples) on Days 1, 8 and 15. ]

Secondary Outcome Measures:
  • safety: adverse events [ Time Frame: entire study ]

Enrollment: 12
Study Start Date: September 2008
Study Completion Date: February 2009
Primary Completion Date: February 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: A
Kaletra tablets
Drug: Lopinavir/ritonavir
Lopinavir/ritonavir 200/50mg; 2 tablets; single dose
Other Name: Kaletra
Experimental: B
Lopimune granules
Drug: Lopinavir/ritonavir
Lopinavir/ritonavir 100/25mg; 4 sachets with granules; single dose
Other Name: Lopimune granules
Experimental: C
Lopimune tablets
Drug: Lopinavir/ritonavir
Lopinavir/ritonavir 100/25mg; 4 tablets; single dose
Other Name: Lopimune tablets

Detailed Description:

Cipla has developed two co-formulated forms of lopinavir/ritonavir for second-line antiretroviral therapy for children: Lopimune granules and Lopimune tablets. They contain 100mg lopinavir and 25mg ritonavir.

Primary objective of this study:

To determine the pharmacokinetic profile of lopinavir and ritonavir in two different co-formulations (Lopimune granules and Lopimune tablets) after single-dose in HIV-negative, healthy adult subjects, and to compare this to the branded product.

Secondary objective:

To evaluate the safety of single-dose administration of the two generic co-formulations of lopinavir/ritonavir and compare this to the branded product.


Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Subject is at least 18 and not older than 55 years of age on the day of the first dosing.
  • 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
  • Subject has a normal blood pressure and pulse rate, according to the investigator's judgment.
  • Female subject is either not of childbearing potential, or is of childbearing potential and practicing one of the following methods of birth control: condoms, sponge, foams, jellies, diaphragm or copper intrauterine device (IUD); has a vasectomized partner; or total abstinence from sexual intercourse.

Exclusion Criteria:

  • Documented history of sensitivity/idiosyncrasy to medicinal products or excipients.
  • Positive HIV test.
  • Positive hepatitis B or C test.
  • Therapy with any drug, including oral contraceptives.
  • Relevant history or presence of pulmonary disorders (especially COPD), cardiovascular disorders, neurological disorders (especially seizures and migraine), gastrointestinal 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 the first dose.
  • Donation of blood within 60 days prior to the first dose.
  • Febrile illness within 3 days before the first dose.
  • Pregnancy or breastfeeding.
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Please refer to this study by its identifier: NCT00665951

Radboud University Medical Centre
Nijmegen, Gelderland, Netherlands
Sponsors and Collaborators
Radboud University
Principal Investigator: David M Burger Radboud University
  More Information

Responsible Party: Dr. D.M. Burger, hospital pharmacist, Radboud University Nijmegen Medical Centre Identifier: NCT00665951     History of Changes
Other Study ID Numbers: UMCN-AKF 07.04
Study First Received: April 23, 2008
Last Updated: February 24, 2009

Keywords provided by Radboud University:
HIV infection

Additional relevant MeSH terms:
HIV Infections
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
HIV Protease Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Cytochrome P-450 CYP3A Inhibitors
Cytochrome P-450 Enzyme Inhibitors processed this record on April 21, 2017