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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT02551523
Other study ID # KEK-ZH-Nr. 2015-0288
Secondary ID
Status Active, not recruiting
Phase Phase 2
First received
Last updated
Start date November 2016
Est. completion date February 2021

Study information

Verified date October 2018
Source University of Zurich
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Long term toxicity of combination antiretroviral therapy (cART) is a substantial contributor to morbidity and mortality in chronically infected HIV positive individuals. To date it is still debated, whether long term nucleoside reverse transcriptase inhibitors (NRTI's) -sparing regimens are practicable or even superior compared to standard of care cART in terms of efficacy, safety and tolerability. In addition, data about efficacy of integrase inhibitor (INSTI) based monotherapy is lacking. We aim at investigating the efficacy of standard of care combination antiretroviral therapy with a simplified dolutegravir monotherapy in patients with a primary HIV-1 infection under suppressive early standard of care antiretroviral therapy. Briefly, hundred-thirty-eight patients with a documented primary HIV1- infection (PHI) will be recruited from the Zurich Primary HIV-1 Infection Study (ZHPI), which is an open label, non-randomized, observational, single-center study (http://clinicaltrials.gov, ID 5 NCT00537966). All subjects formerly underwent early cART consisting of either a protease inhibitor (PI) or a non-nucleoside reverse transcriptase inhibitor (NNRTI) or a INSTI in combination with two NRTIs at the time point of enrolment in the ZPHI and must be under a fully suppressive ART (i.e., <50 copies/ml) for at least 48 weeks at the time point of randomisation. The primary end point is the proportion of individuals with a viral failure at week 48 or before.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 101
Est. completion date February 2021
Est. primary completion date October 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Informed Consent as documented by signature,

- All patients =18 years with a documented primary HIV-infection undergoing standard of care cART (i.e., one active drug from the class of either the PIs, or the NNRTIs, or the INSTIs, in combination with two active drugs from the class of NRTIs) with no previous structured treatment interruption and with a suppressed viral load (defined as 50 copies/ml) during the previous 48 weeks,

- Participant of the Swiss HIV Cohort Study

Exclusion Criteria:

- Patients not willing to sign the informed consent form,

- Presence of =1 major integrase inhibitor resistance associated mutation according to the Sanford algorithm1,

- History of =2 consecutive plasma viremia levels >400 copies/ml at least two weeks apart,

- Ongoing (i.e., replicating) hepatitis B virus infection,

- Hemoglobin < 10 g/dl (men) and < 9 g/dl (women) at the time of enrolment,

- Contraindications to the class of drugs under study, e.g. known hypersensitivity or allergy to class of drugs or the investigational product,

- Women who are pregnant or breast feeding,

- Intention to become pregnant during the course of the study,

- Lack of safe contraception,

- Other clinically significant concomitant disease states (e.g., renal failure, hepatic dysfunction, cardiovascular disease, etc.),

- Known or suspected non-compliance, drug or alcohol abuse,

- Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant,

- Participation in another study with investigational drug within the 30 days preceding and during the present study,

- Previous enrolment into the current study,

- Enrolment of the investigator, his/her family members, employees and other dependent persons.

Study Design


Intervention

Drug:
Dolutegravir
92 patients will be simplified to once daily dolutegravir monotherapy
Standard of care combinational antiretroviral therapy


Locations

Country Name City State
Switzerland University Hospital Zurich, University of Zurich Zurich

Sponsors (1)

Lead Sponsor Collaborator
University of Zurich

Country where clinical trial is conducted

Switzerland, 

Outcome

Type Measure Description Time frame Safety issue
Primary Proportion of individuals with a viral failure [defined as =2 plasma viremia levels >50copies/ml at least two weeks apart] at week 48 or before. The study seeks primarily to determine the efficacy (i.e., proportion of patients with a viral failure [defined as =2 plasma viremia levels >50copies/ml at least two weeks apart] at week 48 or before) of a simplified monotherapy (i.e., DTG) compared to a standard of care HIV triple-therapy in patients with a PHI treated with early ART under long term suppressive ART for at least 48 weeks. 48 weeks
Secondary Quantification of latent HIV-1 reservoir by measurement of proviral DNA and cell-associated RNA at baseline (time point of randomization), and at week 48 Week48
Secondary Proportion of individuals with a CSF HIV-1 RNA <50copies/ml in the CSF at week 48 after treatment simplification. Week 48
Secondary Proportion of patients with an adverse event at week 48. Week 48
Secondary Proportion of patients with a severe adverse event at week 48. Week 48
Secondary Time to viral failure (defined as =2 plasma viremia levels >50copies/ml at least two weeks apart) at week 48. Week 48
Secondary Proportion of individuals with blips (defined as one viral load >50 and <400 copies/ml with a next viral load <50 copies/ml) at week 48. Week 48
Secondary Change from baseline CD4+ cell count from baseline at week 48. Week 48
Secondary Proportion of individuals with new onset of proximal tubular renal dysfunction at week 48. Week 48
Secondary Creatinine clearance change from baseline at week 48. Week 48
Secondary Lipidic profile changes from baseline at week 48. Week 48
Secondary Proportion of individuals developing a new CDC-event at week 48. Week 48
Secondary Proportion of individuals withdrawing consent at week 48. Week 48
Secondary Proportion of individuals being lost to follow-up at week 48. Week 48
Secondary Proportion of individuals switching assigned treatment for any cause at week 48. Week 48
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