search
Back to results

Pharmacokinetics of Lopinavir/Ritonavir Superboosting in Infants and Young Children Co-infected With HIV and TB

Primary Purpose

Acquired Immunodeficiency Syndrome, Tuberculosis

Status
Completed
Phase
Phase 4
Locations
South Africa
Study Type
Interventional
Intervention
lopinavir with ritonavir in 1:1 ratio
Lopinavir/ritonavir 4:1
Sponsored by
Drugs for Neglected Diseases
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Acquired Immunodeficiency Syndrome focused on measuring Human immunideficiency virus, Tuberculosis, superboosting, lopinavir/ritonavir 1:1, Pediatric TB/HIV co-infection

Eligibility Criteria

2 Weeks - undefined (Child, Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Documentation of a confirmed diagnosis of HIV-1 infection following SA clinical guidelines
  • Weight >3kg ≤15 kg at enrolment
  • > 42 weeks gestational age
  • On LPV/r-based therapy or about to start a LPV/r-based antiretroviral combination therapy with 2 NRTIs [ABC+3TC or AZT+3TC or d4T+3TC]
  • Clinical diagnosis of TB requiring RIF-based therapy
  • Parent or legal guardian able and willing to provide written informed consent and able to attend study visits.

Exclusion Criteria:

  • For neonates, less than 42 weeks gestation and 14 days old
  • Concomitant/chronic treatment with potent enzyme-inducing/inhibiting drugs other than those in the study treatments . See Appendix E (minor inducers/inhibitors and drugs used as part of management of the condition are allowed eg. Steroids)
  • Anticipation at the start that anti-TB treatment duration will be longer than 9 months
  • Any other condition/finding that, in the investigator's opinion, would compromise the child's participation in this study eg. alanine transferase (ALT) more than 10 times upper limit of normal (ULN), or chronic renal, hepatic or gastrointestinal disease such as malabsorption.
  • Children with known malignancies and contraindications to taking LPV/r
  • Treatment with experimental drugs for any indication within 30 days prior to study entry; participation in another study may be approved by the study team.

Sites / Locations

  • The Children's Infectious Disease Clinical Research Unit; University of Stellenbosch
  • Enhancing Care Foundation; Wendworth Hospital
  • Perinatal HIV Research Unit
  • Shandukani Research WRHI
  • Empilweni Services and Research Unit

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

TB/HIV co-infection

Arm Description

Superboosting lopinavir with ritonavir in 1:1 ratio during TB/HIV co-infection and treatment of HIV with lopinavir/ritonavir 4:1

Outcomes

Primary Outcome Measures

Modelled C0/morning trough
Proportions of children treated with modelled lopinavir morning C0/morning trough <1mg/L at each of the intensive PK evaluations.

Secondary Outcome Measures

C0/morning trough
Proportions of children with observed lopinavir morning trough, C0/morning trough <1mg/L at each of the intensive PK evaluations
ALT
Safety and tolerability of superboosting focusing on liver functions through clinical and biochemical monitoring.
ECG
Potential superboosting cardiac effect monitored by electrocardiogram at the beginning of anti-TB and HIV concomitant therapy

Full Information

First Posted
December 3, 2014
Last Updated
May 10, 2017
Sponsor
Drugs for Neglected Diseases
Collaborators
University of Cape Town, Medecins Sans Frontieres, Netherlands, French Development Agency, UBS Optimus Foundation
search

1. Study Identification

Unique Protocol Identification Number
NCT02348177
Brief Title
Pharmacokinetics of Lopinavir/Ritonavir Superboosting in Infants and Young Children Co-infected With HIV and TB
Official Title
A Pharmacokinetics Study Comparing Lopinavir Plasma Exposure When Given as Lopinavir/Ritonavir (1:1) in the Presence of Rifampicin and Lopinavir/Ritonavir (4:1) Without Rifampicin in HIV and TB Co-infected Children in South Africa.
Study Type
Interventional

2. Study Status

Record Verification Date
May 2017
Overall Recruitment Status
Completed
Study Start Date
January 2013 (undefined)
Primary Completion Date
December 2016 (Actual)
Study Completion Date
December 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Drugs for Neglected Diseases
Collaborators
University of Cape Town, Medecins Sans Frontieres, Netherlands, French Development Agency, UBS Optimus Foundation

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this study is to determine the lopinavir levels in blood of HIV and TB infected children (3-15kg) when given lopinavir/ritonavir in a 1:1 ratio with rifampicin containing TB regimen and its safety.
Detailed Description
This is a multicentre, open label, non-randomized, prospective, noninferiority study to compare the pharmacokinetics of lopinavir administered with superboosting (LPV/r 1:1) and concurrent RIF treatment or with standard boosting (LPV/r 4:1) without concurrent RIF treatment, and to assess the safety, tolerance, and virological effect of superboosting in HIV-TB co-infected infants and children weighing >3 kg and ≤15 kg. LPV/r will be administered as the liquid 80/20 mg/mL formulation (4:1 standard boosting ratio). During anti-TB treatment, additional RTV liquid formulation will be provided to deliver a 1:1 superboosting ratio of LPV to RTV. Actual doses for antiretrovirals and anti-TB drugs will be based on the South African (SA) weight band dosing recommendations and provided as per the site standard of care.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Acquired Immunodeficiency Syndrome, Tuberculosis
Keywords
Human immunideficiency virus, Tuberculosis, superboosting, lopinavir/ritonavir 1:1, Pediatric TB/HIV co-infection

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
96 (Actual)

8. Arms, Groups, and Interventions

Arm Title
TB/HIV co-infection
Arm Type
Experimental
Arm Description
Superboosting lopinavir with ritonavir in 1:1 ratio during TB/HIV co-infection and treatment of HIV with lopinavir/ritonavir 4:1
Intervention Type
Drug
Intervention Name(s)
lopinavir with ritonavir in 1:1 ratio
Other Intervention Name(s)
Lopinavir/ritonavir, Ritonavir
Intervention Description
During co-treatment of rifampicin containing tuberculosis treatment and lopinavir/ritonavir (4:1) based therapy, additional ritonavir is given to make lopinavir/ritonavir 1:1 ratio
Intervention Type
Drug
Intervention Name(s)
Lopinavir/ritonavir 4:1
Other Intervention Name(s)
Lopinavir/ritonavir
Intervention Description
This is the conventional dosing of LPV/r 4:1 for HIV when TB treatment has not been started or has been stopped
Primary Outcome Measure Information:
Title
Modelled C0/morning trough
Description
Proportions of children treated with modelled lopinavir morning C0/morning trough <1mg/L at each of the intensive PK evaluations.
Time Frame
Predose
Secondary Outcome Measure Information:
Title
C0/morning trough
Description
Proportions of children with observed lopinavir morning trough, C0/morning trough <1mg/L at each of the intensive PK evaluations
Time Frame
Predose
Title
ALT
Description
Safety and tolerability of superboosting focusing on liver functions through clinical and biochemical monitoring.
Time Frame
baseline, PK1, PK2, PK3
Title
ECG
Description
Potential superboosting cardiac effect monitored by electrocardiogram at the beginning of anti-TB and HIV concomitant therapy
Time Frame
baseline, 2 weeks after LPV/r 1:1, PK1

10. Eligibility

Sex
All
Minimum Age & Unit of Time
2 Weeks
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Documentation of a confirmed diagnosis of HIV-1 infection following SA clinical guidelines Weight >3kg ≤15 kg at enrolment > 42 weeks gestational age On LPV/r-based therapy or about to start a LPV/r-based antiretroviral combination therapy with 2 NRTIs [ABC+3TC or AZT+3TC or d4T+3TC] Clinical diagnosis of TB requiring RIF-based therapy Parent or legal guardian able and willing to provide written informed consent and able to attend study visits. Exclusion Criteria: For neonates, less than 42 weeks gestation and 14 days old Concomitant/chronic treatment with potent enzyme-inducing/inhibiting drugs other than those in the study treatments . See Appendix E (minor inducers/inhibitors and drugs used as part of management of the condition are allowed eg. Steroids) Anticipation at the start that anti-TB treatment duration will be longer than 9 months Any other condition/finding that, in the investigator's opinion, would compromise the child's participation in this study eg. alanine transferase (ALT) more than 10 times upper limit of normal (ULN), or chronic renal, hepatic or gastrointestinal disease such as malabsorption. Children with known malignancies and contraindications to taking LPV/r Treatment with experimental drugs for any indication within 30 days prior to study entry; participation in another study may be approved by the study team.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Mark Cotton, Professor
Organizational Affiliation
University of Stellenbosch
Official's Role
Principal Investigator
Facility Information:
Facility Name
The Children's Infectious Disease Clinical Research Unit; University of Stellenbosch
City
Cape Town
State/Province
Western Cape
ZIP/Postal Code
7505
Country
South Africa
Facility Name
Enhancing Care Foundation; Wendworth Hospital
City
Durban
ZIP/Postal Code
4013
Country
South Africa
Facility Name
Perinatal HIV Research Unit
City
Johannesburg
ZIP/Postal Code
1864
Country
South Africa
Facility Name
Shandukani Research WRHI
City
Johannesburg
ZIP/Postal Code
2001
Country
South Africa
Facility Name
Empilweni Services and Research Unit
City
Johannesburg
ZIP/Postal Code
2093
Country
South Africa

12. IPD Sharing Statement

Citations:
PubMed Identifier
15464184
Citation
Newell ML, Coovadia H, Cortina-Borja M, Rollins N, Gaillard P, Dabis F; Ghent International AIDS Society (IAS) Working Group on HIV Infection in Women and Children. Mortality of infected and uninfected infants born to HIV-infected mothers in Africa: a pooled analysis. Lancet. 2004 Oct 2-8;364(9441):1236-43. doi: 10.1016/S0140-6736(04)17140-7.
Results Reference
background
PubMed Identifier
22189531
Citation
Johnson LF, Davies MA, Moultrie H, Sherman GG, Bland RM, Rehle TM, Dorrington RE, Newell ML. The effect of early initiation of antiretroviral treatment in infants on pediatric AIDS mortality in South Africa: a model-based analysis. Pediatr Infect Dis J. 2012 May;31(5):474-80. doi: 10.1097/INF.0b013e3182456ba2.
Results Reference
background
PubMed Identifier
21247884
Citation
Marston M, Becquet R, Zaba B, Moulton LH, Gray G, Coovadia H, Essex M, Ekouevi DK, Jackson D, Coutsoudis A, Kilewo C, Leroy V, Wiktor S, Nduati R, Msellati P, Dabis F, Newell ML, Ghys PD. Net survival of perinatally and postnatally HIV-infected children: a pooled analysis of individual data from sub-Saharan Africa. Int J Epidemiol. 2011 Apr;40(2):385-96. doi: 10.1093/ije/dyq255. Epub 2011 Jan 18.
Results Reference
background
PubMed Identifier
15504887
Citation
Gurumurthy P, Ramachandran G, Hemanth Kumar AK, Rajasekaran S, Padmapriyadarsini C, Swaminathan S, Bhagavathy S, Venkatesan P, Sekar L, Mahilmaran A, Ravichandran N, Paramesh P. Decreased bioavailability of rifampin and other antituberculosis drugs in patients with advanced human immunodeficiency virus disease. Antimicrob Agents Chemother. 2004 Nov;48(11):4473-5. doi: 10.1128/AAC.48.11.4473-4475.2004.
Results Reference
background
PubMed Identifier
21555825
Citation
McIlleron H, Ren Y, Nuttall J, Fairlie L, Rabie H, Cotton M, Eley B, Meyers T, Smith PJ, Merry C, Maartens G. Lopinavir exposure is insufficient in children given double doses of lopinavir/ritonavir during rifampicin-based treatment for tuberculosis. Antivir Ther. 2011;16(3):417-21. doi: 10.3851/IMP1757.
Results Reference
background
PubMed Identifier
20935555
Citation
Zanoni BC, Phungula T, Zanoni HM, France H, Feeney ME. Impact of tuberculosis cotreatment on viral suppression rates among HIV-positive children initiating HAART. AIDS. 2011 Jan 2;25(1):49-55. doi: 10.1097/QAD.0b013e32833f9e04.
Results Reference
background
PubMed Identifier
19020325
Citation
Violari A, Cotton MF, Gibb DM, Babiker AG, Steyn J, Madhi SA, Jean-Philippe P, McIntyre JA; CHER Study Team. Early antiretroviral therapy and mortality among HIV-infected infants. N Engl J Med. 2008 Nov 20;359(21):2233-44. doi: 10.1056/NEJMoa0800971.
Results Reference
background
PubMed Identifier
20214476
Citation
Reitz C, Coovadia A, Ko S, Meyers T, Strehlau R, Sherman G, Kuhn L, Abrams EJ. Initial response to protease-inhibitor-based antiretroviral therapy among children less than 2 years of age in South Africa: effect of cotreatment for tuberculosis. J Infect Dis. 2010 Apr 15;201(8):1121-31. doi: 10.1086/651454.
Results Reference
background
PubMed Identifier
20823434
Citation
Coovadia A, Abrams EJ, Stehlau R, Meyers T, Martens L, Sherman G, Hunt G, Hu CC, Tsai WY, Morris L, Kuhn L. Reuse of nevirapine in exposed HIV-infected children after protease inhibitor-based viral suppression: a randomized controlled trial. JAMA. 2010 Sep 8;304(10):1082-90. doi: 10.1001/jama.2010.1278.
Results Reference
background
PubMed Identifier
12634581
Citation
Saez-Llorens X, Violari A, Deetz CO, Rode RA, Gomez P, Handelsman E, Pelton S, Ramilo O, Cahn P, Chadwick E, Allen U, Arpadi S, Castrejon MM, Heuser RS, Kempf DJ, Bertz RJ, Hsu AF, Bernstein B, Renz CL, Sun E. Forty-eight-week evaluation of lopinavir/ritonavir, a new protease inhibitor, in human immunodeficiency virus-infected children. Pediatr Infect Dis J. 2003 Mar;22(3):216-24. doi: 10.1097/01.inf.0000055061.97567.34.
Results Reference
background
PubMed Identifier
17668553
Citation
Verweel G, Burger DM, Sheehan NL, Bergshoeff AS, Warris A, van der Knaap LC, Driessen G, de Groot R, Hartwig NG. Plasma concentrations of the HIV-protease inhibitor lopinavir are suboptimal in children aged 2 years and below. Antivir Ther. 2007;12(4):453-8.
Results Reference
background
PubMed Identifier
18097227
Citation
Chadwick EG, Capparelli EV, Yogev R, Pinto JA, Robbins B, Rodman JH, Chen J, Palumbo P, Serchuck L, Smith E, Hughes M; P1030 team. Pharmacokinetics, safety and efficacy of lopinavir/ritonavir in infants less than 6 months of age: 24 week results. AIDS. 2008 Jan 11;22(2):249-55. doi: 10.1097/QAD.0b013e3282f2be1d.
Results Reference
background
PubMed Identifier
19209098
Citation
Chadwick EG, Pinto J, Yogev R, Alvero CG, Hughes MD, Palumbo P, Robbins B, Hazra R, Serchuck L, Heckman BE, Purdue L, Browning R, Luzuriaga K, Rodman J, Capparelli E; International Maternal Pediatric Adolescent Clinical Trials Group (IMPAACT) P1030 Team. Early initiation of lopinavir/ritonavir in infants less than 6 weeks of age: pharmacokinetics and 24-week safety and efficacy. Pediatr Infect Dis J. 2009 Mar;28(3):215-9. doi: 10.1097/INF.0b013e31818cc053.
Results Reference
background
PubMed Identifier
19258274
Citation
Rakhmanina N, van den Anker J, Baghdassarian A, Soldin S, Williams K, Neely MN. Population pharmacokinetics of lopinavir predict suboptimal therapeutic concentrations in treatment-experienced human immunodeficiency virus-infected children. Antimicrob Agents Chemother. 2009 Jun;53(6):2532-8. doi: 10.1128/AAC.01374-08. Epub 2009 Mar 2.
Results Reference
background
PubMed Identifier
20552180
Citation
Elsherbiny D, Ren Y, McIlleron H, Maartens G, Simonsson US. Population pharmacokinetics of lopinavir in combination with rifampicin-based antitubercular treatment in HIV-infected South African children. Eur J Clin Pharmacol. 2010 Oct;66(10):1017-23. doi: 10.1007/s00228-010-0847-9. Epub 2010 Jun 16.
Results Reference
background
PubMed Identifier
21564164
Citation
Urien S, Firtion G, Anderson ST, Hirt D, Solas C, Peytavin G, Faye A, Thuret I, Leprevost M, Giraud C, Lyall H, Khoo S, Blanche S, Treluyer JM. Lopinavir/ritonavir population pharmacokinetics in neonates and infants. Br J Clin Pharmacol. 2011 Jun;71(6):956-60. doi: 10.1111/j.1365-2125.2011.03926.x.
Results Reference
background
PubMed Identifier
20942667
Citation
Palumbo P, Lindsey JC, Hughes MD, Cotton MF, Bobat R, Meyers T, Bwakura-Dangarembizi M, Chi BH, Musoke P, Kamthunzi P, Schimana W, Purdue L, Eshleman SH, Abrams EJ, Millar L, Petzold E, Mofenson LM, Jean-Philippe P, Violari A. Antiretroviral treatment for children with peripartum nevirapine exposure. N Engl J Med. 2010 Oct 14;363(16):1510-20. doi: 10.1056/NEJMoa1000931.
Results Reference
background
PubMed Identifier
21258105
Citation
Moorthy A, Kuhn L, Coovadia A, Meyers T, Strehlau R, Sherman G, Tsai WY, Chen YH, Abrams EJ, Persaud D. Induction therapy with protease-inhibitors modifies the effect of nevirapine resistance on virologic response to nevirapine-based HAART in children. Clin Infect Dis. 2011 Feb 15;52(4):514-21. doi: 10.1093/cid/ciq161. Epub 2011 Jan 22.
Results Reference
background
PubMed Identifier
21888444
Citation
Eley BS, Meyers T. Antiretroviral therapy for children in resource-limited settings: current regimens and the role of newer agents. Paediatr Drugs. 2011 Oct 1;13(5):303-16. doi: 10.2165/11593330-000000000-00000.
Results Reference
background
PubMed Identifier
19392636
Citation
McIlleron H, Willemse M, Werely CJ, Hussey GD, Schaaf HS, Smith PJ, Donald PR. Isoniazid plasma concentrations in a cohort of South African children with tuberculosis: implications for international pediatric dosing guidelines. Clin Infect Dis. 2009 Jun 1;48(11):1547-53. doi: 10.1086/598192.
Results Reference
background
PubMed Identifier
19386087
Citation
Schaaf HS, Willemse M, Cilliers K, Labadarios D, Maritz JS, Hussey GD, McIlleron H, Smith P, Donald PR. Rifampin pharmacokinetics in children, with and without human immunodeficiency virus infection, hospitalized for the management of severe forms of tuberculosis. BMC Med. 2009 Apr 22;7:19. doi: 10.1186/1741-7015-7-19.
Results Reference
background
PubMed Identifier
18713511
Citation
Thee S, Detjen A, Wahn U, Magdorf K. Pyrazinamide serum levels in childhood tuberculosis. Int J Tuberc Lung Dis. 2008 Sep;12(9):1099-101.
Results Reference
background
PubMed Identifier
17167947
Citation
Donald PR, Maher D, Maritz JS, Qazi S. Ethambutol dosage for the treatment of children: literature review and recommendations. Int J Tuberc Lung Dis. 2006 Dec;10(12):1318-30.
Results Reference
background
PubMed Identifier
21968358
Citation
Thee S, Seddon JA, Donald PR, Seifart HI, Werely CJ, Hesseling AC, Rosenkranz B, Roll S, Magdorf K, Schaaf HS. Pharmacokinetics of isoniazid, rifampin, and pyrazinamide in children younger than two years of age with tuberculosis: evidence for implementation of revised World Health Organization recommendations. Antimicrob Agents Chemother. 2011 Dec;55(12):5560-7. doi: 10.1128/AAC.05429-11. Epub 2011 Oct 3.
Results Reference
background
PubMed Identifier
16394846
Citation
Berenguer J, Perez-Elias MJ, Bellon JM, Knobel H, Rivas-Gonzalez P, Gatell JM, Miguelez M, Hernandez-Quero J, Flores J, Soriano V, Santos I, Podzamczer D, Sala M, Camba M, Resino S; Spanish Abacavir, Lamivudine, and Zidovudine Cohort Study Group. Effectiveness and safety of abacavir, lamivudine, and zidovudine in antiretroviral therapy-naive HIV-infected patients: results from a large multicenter observational cohort. J Acquir Immune Defic Syndr. 2006 Feb 1;41(2):154-9. doi: 10.1097/01.qai.0000194231.08207.8a.
Results Reference
background
PubMed Identifier
19588374
Citation
Shey M, Kongnyuy EJ, Shang J, Wiysonge CS. A combination drug of abacavir-lamivudine-zidovudine (Trizivir) for treating HIV infection and AIDS. Cochrane Database Syst Rev. 2009 Jul 8;(3):CD005481. doi: 10.1002/14651858.CD005481.pub2.
Results Reference
background
PubMed Identifier
15105105
Citation
la Porte CJ, Colbers EP, Bertz R, Voncken DS, Wikstrom K, Boeree MJ, Koopmans PP, Hekster YA, Burger DM. Pharmacokinetics of adjusted-dose lopinavir-ritonavir combined with rifampin in healthy volunteers. Antimicrob Agents Chemother. 2004 May;48(5):1553-60. doi: 10.1128/AAC.48.5.1553-1560.2004.
Results Reference
background
PubMed Identifier
21537021
Citation
Decloedt EH, McIlleron H, Smith P, Merry C, Orrell C, Maartens G. Pharmacokinetics of lopinavir in HIV-infected adults receiving rifampin with adjusted doses of lopinavir-ritonavir tablets. Antimicrob Agents Chemother. 2011 Jul;55(7):3195-200. doi: 10.1128/AAC.01598-10. Epub 2011 May 2.
Results Reference
background
PubMed Identifier
18197120
Citation
Ren Y, Nuttall JJ, Egbers C, Eley BS, Meyers TM, Smith PJ, Maartens G, McIlleron HM. Effect of rifampicin on lopinavir pharmacokinetics in HIV-infected children with tuberculosis. J Acquir Immune Defic Syndr. 2008 Apr 15;47(5):566-9. doi: 10.1097/QAI.0b013e3181642257.
Results Reference
background
PubMed Identifier
21383838
Citation
Frohoff C, Moodley M, Fairlie L, Coovadia A, Moultrie H, Kuhn L, Meyers T. Antiretroviral therapy outcomes in HIV-infected children after adjusting protease inhibitor dosing during tuberculosis treatment. PLoS One. 2011 Feb 23;6(2):e17273. doi: 10.1371/journal.pone.0017273.
Results Reference
background
PubMed Identifier
11714868
Citation
Rae JM, Johnson MD, Lippman ME, Flockhart DA. Rifampin is a selective, pleiotropic inducer of drug metabolism genes in human hepatocytes: studies with cDNA and oligonucleotide expression arrays. J Pharmacol Exp Ther. 2001 Dec;299(3):849-57.
Results Reference
background
PubMed Identifier
22267466
Citation
Zhang C, McIlleron H, Ren Y, van der Walt JS, Karlsson MO, Simonsson US, Denti P. Population pharmacokinetics of lopinavir and ritonavir in combination with rifampicin-based antitubercular treatment in HIV-infected children. Antivir Ther. 2012;17(1):25-33. doi: 10.3851/IMP1915.
Results Reference
background
PubMed Identifier
17914927
Citation
Anderson BJ, Holford NH. Mechanism-based concepts of size and maturity in pharmacokinetics. Annu Rev Pharmacol Toxicol. 2008;48:303-32. doi: 10.1146/annurev.pharmtox.48.113006.094708.
Results Reference
background
PubMed Identifier
20090674
Citation
Holford N. Dosing in children. Clin Pharmacol Ther. 2010 Mar;87(3):367-70. doi: 10.1038/clpt.2009.262. Epub 2010 Jan 20. No abstract available.
Results Reference
background
PubMed Identifier
14594104
Citation
Price PS, Conolly RB, Chaisson CF, Gross EA, Young JS, Mathis ET, Tedder DR. Modeling interindividual variation in physiological factors used in PBPK models of humans. Crit Rev Toxicol. 2003;33(5):469-503.
Results Reference
background
PubMed Identifier
17085459
Citation
Zar HJ, Cotton MF, Strauss S, Karpakis J, Hussey G, Schaaf HS, Rabie H, Lombard CJ. Effect of isoniazid prophylaxis on mortality and incidence of tuberculosis in children with HIV: randomised controlled trial. BMJ. 2007 Jan 20;334(7585):136. doi: 10.1136/bmj.39000.486400.55. Epub 2006 Nov 3.
Results Reference
background
PubMed Identifier
20051929
Citation
Hartkoorn RC, Kwan WS, Shallcross V, Chaikan A, Liptrott N, Egan D, Sora ES, James CE, Gibbons S, Bray PG, Back DJ, Khoo SH, Owen A. HIV protease inhibitors are substrates for OATP1A2, OATP1B1 and OATP1B3 and lopinavir plasma concentrations are influenced by SLCO1B1 polymorphisms. Pharmacogenet Genomics. 2010 Feb;20(2):112-20. doi: 10.1097/FPC.0b013e328335b02d.
Results Reference
background
PubMed Identifier
21709081
Citation
Chigutsa E, Visser ME, Swart EC, Denti P, Pushpakom S, Egan D, Holford NH, Smith PJ, Maartens G, Owen A, McIlleron H. The SLCO1B1 rs4149032 polymorphism is highly prevalent in South Africans and is associated with reduced rifampin concentrations: dosing implications. Antimicrob Agents Chemother. 2011 Sep;55(9):4122-7. doi: 10.1128/AAC.01833-10. Epub 2011 Jun 27.
Results Reference
background
PubMed Identifier
20861742
Citation
Svard J, Spiers JP, Mulcahy F, Hennessy M. Nuclear receptor-mediated induction of CYP450 by antiretrovirals: functional consequences of NR1I2 (PXR) polymorphisms and differential prevalence in whites and sub-Saharan Africans. J Acquir Immune Defic Syndr. 2010 Dec 15;55(5):536-49. doi: 10.1097/QAI.0b013e3181f52f0c.
Results Reference
background
PubMed Identifier
22415931
Citation
Shimizu M, Fukami T, Kobayashi Y, Takamiya M, Aoki Y, Nakajima M, Yokoi T. A novel polymorphic allele of human arylacetamide deacetylase leads to decreased enzyme activity. Drug Metab Dispos. 2012 Jun;40(6):1183-90. doi: 10.1124/dmd.112.044883. Epub 2012 Mar 13.
Results Reference
background
PubMed Identifier
21856291
Citation
Nakajima A, Fukami T, Kobayashi Y, Watanabe A, Nakajima M, Yokoi T. Human arylacetamide deacetylase is responsible for deacetylation of rifamycins: rifampicin, rifabutin, and rifapentine. Biochem Pharmacol. 2011 Dec 1;82(11):1747-56. doi: 10.1016/j.bcp.2011.08.003. Epub 2011 Aug 12.
Results Reference
background
PubMed Identifier
22315002
Citation
Wiseman CA, Gie RP, Starke JR, Schaaf HS, Donald PR, Cotton MF, Hesseling AC. A proposed comprehensive classification of tuberculosis disease severity in children. Pediatr Infect Dis J. 2012 Apr;31(4):347-52. doi: 10.1097/INF.0b013e318243e27b.
Results Reference
background
PubMed Identifier
18453852
Citation
Nijland HM, L'homme RF, Rongen GA, van Uden P, van Crevel R, Boeree MJ, Aarnoutse RE, Koopmans PP, Burger DM. High incidence of adverse events in healthy volunteers receiving rifampicin and adjusted doses of lopinavir/ritonavir tablets. AIDS. 2008 May 11;22(8):931-5. doi: 10.1097/QAD.0b013e3282faa71e.
Results Reference
background
PubMed Identifier
18446428
Citation
Dansirikul C, Silber HE, Karlsson MO. Approaches to handling pharmacodynamic baseline responses. J Pharmacokinet Pharmacodyn. 2008 Jun;35(3):269-83. doi: 10.1007/s10928-008-9088-2. Epub 2008 Apr 30.
Results Reference
background
PubMed Identifier
18299967
Citation
Gupta P, Hutmacher MM, Frame B, Miller R. An alternative method for population pharmacokinetic data analysis under noncompliance. J Pharmacokinet Pharmacodyn. 2008 Apr;35(2):219-33. doi: 10.1007/s10928-008-9085-5. Epub 2008 Feb 26.
Results Reference
background
PubMed Identifier
23432610
Citation
Zhang C, Denti P, Decloedt EH, Ren Y, Karlsson MO, McIlleron H. Model-based evaluation of the pharmacokinetic differences between adults and children for lopinavir and ritonavir in combination with rifampicin. Br J Clin Pharmacol. 2013 Nov;76(5):741-51. doi: 10.1111/bcp.12101.
Results Reference
background
PubMed Identifier
32071055
Citation
Rabie H, Tikiso T, Lee J, Fairlie L, Strehlau R, Bobat R, Liberty A, McIlleron H, Andrieux-Meyer I, Cotton M, Lallemant M, Denti P. Abacavir Exposure in Children Cotreated for Tuberculosis with Rifampin and Superboosted Lopinavir-Ritonavir. Antimicrob Agents Chemother. 2020 Apr 21;64(5):e01923-19. doi: 10.1128/AAC.01923-19. Print 2020 Apr 21.
Results Reference
derived
PubMed Identifier
30529029
Citation
Rabie H, Denti P, Lee J, Masango M, Coovadia A, Pillay S, Liberty A, Simon F, McIlleron H, Cotton MF, Lallemant M. Lopinavir-ritonavir super-boosting in young HIV-infected children on rifampicin-based tuberculosis therapy compared with lopinavir-ritonavir without rifampicin: a pharmacokinetic modelling and clinical study. Lancet HIV. 2018 Dec 6:S2352-3018(18)30293-5. doi: 10.1016/S2352-3018(18)30293-5. Online ahead of print.
Results Reference
derived

Learn more about this trial

Pharmacokinetics of Lopinavir/Ritonavir Superboosting in Infants and Young Children Co-infected With HIV and TB

We'll reach out to this number within 24 hrs