E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
The patients for this trial are to be antiretroviral treatment-experienced, currently receiving nevirapine IR with a background therapy of fixed-dose combination (FDC) of 3TC + ABC, FTC + TDF or 3TC + /AZT, men and women ≥ 18 years of age, with an undetectable HIV-1 viral load, provided that the limit of detection of the test is below 100 copies/mL.
All patients need to be on stable therapy with Nevirapine for at least 18 weeks with a viral load of < 50 copies/mL. |
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E.1.1.1 | Medical condition in easily understood language |
Patienten mit HIV-Infektion, die aktuell Nevirapine IR in Kombination mit 3TC + ABC, FTC + TDF oder 3TC + AZT erhalten. Die Viruslast darf nicht nachweisbar sein. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Virus Diseases [C02] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of this study is to demonstrate the efficacy of nevirapine extended release (NVP XR) based regimen for HIV-1 infected patients who were receiving nevirapine immediate release (NVP IR) based regimen for at least 18 prior weeks of therapy. |
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E.2.2 | Secondary objectives of the trial |
Secondary objective of this study is to assess the safety and tolerance of NVP XR based regimen for HIV-1 infected patients who were receiving NVP IR based regimen for at least 18 prior weeks of therapy. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
HIV infected subjects treated with a Viramune based regimen. A subject that meets the following inclusion criteria will be eligible for participation in this study:
1. Signed and dated written informed consent prior to admission to the study in
accordance with GCP and the local legislation.
2. HIV-1 infected males or females ≥ 18 years. Patients without documented
proceeding Western Blot for HIV may undergo testing at screening.
3. Treatment with Viramune regimen for at least the preceding 18 weeks.
4. Background therapy with one of the following for the previous 18 weeks:
3TC/ABC (Kivexa® in EU; Epzicom in US), FTC/TDF (Truvada™) or 3TC/AZT
(Combivir®). The combination drug may also be given as separate components. No
other anti-retrovirals may be given in addition to nevirapne and background at the
time of screening.
5. An undetectable HIV viral load in the preceding 1-4 months, provided that the
limit of detection of the test is below 100 copies/mL.
6. An HIV viral load of < 50 copies/mL at screening (Visit 1).
7. Acceptable screening laboratory values that indicate adequate baseline organ function with the following exceptions:
• ALT and AST < 2.5 × ULN (DAIDS Grade 1).
8. Willingness to abstain from ingesting medications that are listed as contraindicated in the SPC (or PI) or Investigator's Brochure during the study.
9. Karnofsky performance score of ≥ 70 (listed in Appendix 10.4). |
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E.4 | Principal exclusion criteria |
Subjects who meet one or more of the following criteria will be excluded from the study:
1. Current treatment with an HIV protease inhibitor
2. Participation in another trial or use of an investigational medicine within two months prior to Day 1 of this study
3. Female patients of child-bearing potential who:
a. Have a positive serum pregnancy test at screening.
b. Are breast feeding.
c. Are planning to become pregnant
d. Are not willing to use a double-barrier methods (simultaneous use of two diffeent
methods such as diaphragm with spermicidal substance and condom) of
contraception, or require ethinyl estradiol administration. Barrier methods of
contraception include diaphragm with spermicidal substance, condom for females,
cervical caps and condoms..
4. Laboratory parameters > DAIDS grade 2:
• Coagulation (PT, PTT, INR)
• Hematology (absolute platelets, WBC, absolute neutrophil count, hemoglobin)
• Biochemistry (total bilirubin, amylase, serum creatinine, fasting glucose, alkaline
phosphatase)
5. Laboratory parameters > DAIDS grade 3
• Total triglycerides (total cholesterol no restriction)
6. Hypersensitivity to any ingredients of the test products
7. Active drug abuse or chronic alcoholism.
8. Hepatic cirrhosis stage Child-Pugh B or C
9. History of severe or acute illness within 60 days prior to Day 1, malignancy or any other conditions which would make the patient, in the opinion of the investigator, unsuitable for the trial
10. Inability to comply with protocol requirements |
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary endpoint is proportion of sustained virologic response (viral load < 50
copies/mL) through Week 24. The time window of week 24 is defined as 24 ± 4 weeks from Day 1. A patient will be considered as a treatment failure at the earliest time of any one of the following events prior to Week 24:
• A virologic failure defined by viral load ≥ 50 copies/mL measured at two consecutive
visits, at least two weeks apart;
• Change of ARV therapy: a change of ARV therapy is defined as either a permanent
discontinuation of study medication NVP (XR or IR), or addition of new ARV drugs,
or alterations in background therapy.
• Patients who change between the three alternative background therapies because
of toxicity of the background or for convenience are not considered treatment
failures. In the case the background has to be discontinued due to its own toxicity
or intolerance, the investigator has to construct a new NRTI-backbone choosing
one of the other two background therapies allowed in this study. Convenience
includes changing to a once-a-day scheduled background treatment if patients
are randomized to receive nevirapine XR or other changes in schedule not
related to virologic failure or toxicity. Patients who change background for
reasons of convenience will only do so after having completed Visit 7 (Week 24).
• Death;
• Lost to follow-up.
A change in the background therapy due to toxicity or intolerance clearly attributable to the background therapy is not considered as treatment failure. In the case the background has to be discontinued due to its own toxicity or intolerance, the investigator has to construct a new NRTI-backbone choosing one of the other two background therapies allowed in this study. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
The secondary endpoints include:
• Proportion of sustained virologic response (viral load < 50 copies/mL) through Week 48. The time window of Week 48 is defined as 48 ± 4 weeks from Day 1;
• Proportion of sustained virologic response (viral load < 400 copies/mL) through Week 24;
• Proportion of sustained virologic response (viral load < 400 copies/mL) through Week 48;
• Time to treatment failure, defined as the time between the start of treatment and the time of treatment failure, prior to the time when the last patient is on treatment for 24 weeks;
• Time to treatment failure, defined as the time between the start of treatment and the time of treatment failure, prior to the time when the last patient is on treatment for 48 weeks;
• Change in VL and CD4+ cell count from baseline at each visit;
• Genotypic resistance associated with virologic failure.
Secondary pharmacokinetic endpoints include:
• Trough nevirapine plasma concentrations at Visits 2 through 9 (Week 0 through Week 48)
Safety endpoints include:
• Adverse events (treatment related and unrelated);
• Serious adverse events (including AIDS-defining events);
• Occurrences of rashes and hepatic events;
• Laboratory measurement abnormalities;
• Change in laboratory test value from baseline at Week 24 and Week 48;
• Incidence of AIDS progression or death at Week 24 and Week 48. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | Information not present in EudraCT |
E.7.1.1 | First administration to humans | Information not present in EudraCT |
E.7.1.2 | Bioequivalence study | Information not present in EudraCT |
E.7.1.3 | Other | Information not present in EudraCT |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Information not present in EudraCT |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | Information not present in EudraCT |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | Information not present in EudraCT |
E.8.1.4 | Double blind | Information not present in EudraCT |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | Information not present in EudraCT |
E.8.1.7 | Other | Information not present in EudraCT |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 15 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 33 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
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E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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End of trial will be the last visit of the last subject. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 6 |