ClinicalTrials.gg
RecruitingNCT04892654DORDOLUpdated Oct 25, 2023

Efficacy of Doravirine + Dolutegravir Dual Therapy in the Context of Antiretroviral Therapy Switch

A Phase 3 interventional study of Doravirine and Dolutegravir in HIV-1-infection, sponsored by Chelsea and Westminster NHS Foundation Trust. Recruiting at 3 sites in United Kingdom. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-10-25.

Sponsored by Chelsea and Westminster NHS Foundation Trust · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2022; still recruiting 4 years 2 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Combination antiretroviral therapy (cART) HIV treatments are associated with increased quality of life, and a normalisation of life expectancy in people living with HIV. However, long-term use of cART can lead to side-effects through exposure to drug-related toxicity.

For this reason researchers are interested in looking at alternative therapies that might expose patients to fewer and less severe side effects while providing the same quality of care as antiretroviral therapies most often used to treat HIV.

The purpose of this study is to investigate if the study drug combination that is being tested (doravirine + dolutegravir) is safe compared with other triple cART regimens.

Read the detailed description

A randomised, open label study to assess the efficacy of switching from suppressive triple cART to doravirine + dolutegravir dual cART in people living with HIV (PLWH) with an undetectable viral load

A computer-based software will randomise participants 2:1 to either the (1) experimental arm (early switch group) to take two-pill regimen for 96 weeks, or (2) control arm (delayed switch group) where participants continue their current triple cART regimen for 48 weeks, then switch to the two-pill regimen for another 48 weeks.

Viral load will be measured at each study visit to determine the percentage of participants in each treatment arm with undetectable plasma HIV RNA levels at week 48.

Additional research urine and bloods will be taken, as well as questionnaires completed at baseline and every 24 weeks to further investigate safety, tolerability, and quality of life from switch of suppressive triple cART to doravirine + dolutegravir dual cART.

02

Conditions studied

  • HIV-1-infection

Keywords

  • HIV
  • Doravirine
  • Dolutegravir
  • cART
03

In context

Lead sponsor

Chelsea and Westminster NHS Foundation Trust is the lead sponsor of 54 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • -1 infected, 18 years or older
  • On stable \& suppressive triple cART for at least 6 months
  • No evidence of resistance to DOR or DTG
  • No laboratory abnormalities, medical/psychiatric conditions or alcohol/drug use considered a barrier to participation by investigators
  • Women who are pre-menopausal and sexually active should be on one of the following methods of :

    • Implant
    • Depot injection
    • Intra-uterine device or system
    • Oral hormonal contraception

Exclusion criteria

Exclusion Criteria:

  • History of virological failure on an NNRTI in absence of a post-failure genotypic resistance test proving absence of resistance to DOR
  • History of virological failure on an INSTI in absence of a post-failure genotypic resistance test proving absence of resistance to DTG (INSTI mutations that will lead to the need of administering DTG twice-daily are considered as resistance to DTG - and the subject will be considered NOT eligible)
  • Concomitant medication with DTG or DOR
  • \<9 g/dL
  • \<80,000/mm3
  • \<30 mL/min
  • or ALT ≥5N
  • Acute Hepatitis A infection.
  • Concomitant DAA for anti- therapy
  • Known acute or chronic viral or C.

    • Individuals testing positive for HBcAb, but negative HBsAg/HBeAg, may be included on the trial.
    • Individuals with positive anti-HCV results, but with HCV RNA not detected may be included on the trial.
  • Pregnant or breastfeeding women
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
150 participants (estimated)

Study arms

  • Experimental
    Immediate Switch

    Two-pill regimen, doravirine (100 mg) + dolutegravir (50 mg) tablets taken orally once daily for 96 weeks.

    Drug: Doravirine · Drug: Dolutegravir

  • Other
    Delayed Switch

    Participants will continue their current triple cART regimen for 48 weeks. Patients will then be switched to two-pill regimen, doravirine (100 mg) + dolutegravir (50 mg) tablets taken orally once daily for 48 weeks.

    Drug: Doravirine · Drug: Dolutegravir · Other: Triple cART regimen

Interventions

  • Antiretroviral, Non-nucleoside Reverse Transcriptase Inhibitor

    Also known as: Pifeltro

  • Antiretroviral, Integrase strand transfer inhibitors

    Also known as: Tivicay

  • OtherTriple cART regimen

    Participant standard triple cART regimen

06

What researchers measure

Primary outcomes

  1. Percentage of Participants with undetectable plasma HIV RNA levels at Week 48

    Undetectable will be defined as plasma HIV RNA levels of \<50 copies/ml. Any patient with HIV RNA levels \>50 copies/ml at analysis time points will have a repeat test

    Time frame: 48 weeks from randomisation (+/- 7 days)

Secondary outcomes

  1. Proportion of patients treated on each treatment arm with HIV viral load less than 50 copies/ml to determine absolute efficacy of study treatments

    Proportion of patients treated on each treatment arm with HIV viral load less than 50 copies/ml at weeks and 24, 72 and 96.

    Time frame: 96 weeks from randomisation (+/- 7 days)

  2. Frequency and severity of adverse events to determine safety and tolerability of study treatments

    Occurrence of adverse events (including laboratory results), severity of adverse events and occurrence of treatment discontinuations measured through adverse event reporting by sites.

    Time frame: 96 weeks from randomisation (+/- 7 days)

  3. Changes in CD4 count and CD4:CD8 ratio to determine safety and tolerability of study treatments

    CD4 count and CD4:CD8 ratio will be measured at screening and compared to measurements in both arms weeks 24, 48, 72 and 96

    Time frame: 96 weeks from randomisation (+/- 7 days)

  4. Scores from participant-recorded outcome measures on quality of life to determine safety and tolerability of study treatments

    Scores from participant-recorded outcome measures at weeks 0, 24, 48, 72 and 96: EuroQoL EQ-5D-3L Questionnaire Score from 0 to 100 (with 100 as best outcome)

    Time frame: 96 weeks from randomisation (+/- 7 days)

  5. Scores from participant-recorded outcome measures on patient treatment satisfaction to determine safety and tolerability of study treatments

    Scores from participant-recorded outcome measures at weeks 0, 24, 48, 72 and 96: Patient Treatment Satisfaction Questionnaire At week 0: Score from 0 to 6 (with 6 as best outcome) All other visits: Score -3 to +3 compared to week previous (with higher score best outcome)

    Time frame: 96 weeks from randomisation (+/- 7 days)

  6. Scores from participant-recorded outcome measures on sleep quality to determine safety and tolerability of study treatments

    Scores from participant-recorded outcome measures at weeks 0, 24, 48, 72 and 96: Pittsburgh Sleep Quality Index (PSQI) Score range for each PSQI evaluation ranges from 0 to 21 (with 0 as best outcome)

    Time frame: 96 weeks from randomisation (+/- 7 days)

Other outcomes

  1. Serum Neurofilament light chains (sNFL) comparison

    NFL serum levels as measured at weeks 0, 48, 96.

    Time frame: 96 weeks from randomisation (+/- 7 days)

  2. Telomerase length comparison

    Telomerase length measurements from samples taken at weeks 0, 48, 96.

    Time frame: 96 weeks from randomisation (+/- 7 days)

  3. Digit span tests comparison

    Comparison of test results taken at weeks 0, 48, 96: • Digit span forward and backward nb - At Torino site only

    Time frame: 96 weeks from randomisation (+/- 7 days)

  4. Trail making tests comparison

    Comparison of test results taken at weeks 0, 48, 96: • Trail making test A and B nb - At Torino site only

    Time frame: 96 weeks from randomisation (+/- 7 days)

  5. Verbal fluency tests comparison

    Comparison of test results taken at weeks 0, 48, 96: • Phonemic verbal fluency nb - At Torino site only

    Time frame: 96 weeks from randomisation (+/- 7 days)

  6. Groove pegboard tests comparison

    Comparison of test results taken at weeks 0, 48, 96: • Groove pegboard for dominant and non-dominant hand nb - At Torino site only

    Time frame: 96 weeks from randomisation (+/- 7 days)

  7. Bisyllabic words tests comparison

    Comparison of test results taken at weeks 0, 48, 96: • Serial repetition of bisyllabic words test nb - At Torino site only

    Time frame: 96 weeks from randomisation (+/- 7 days)

  8. Metabolomics comparison

    Comparison of liquid chromatography mass spectrometry (LC-MS) based metabolomics analysis on plasma and urine samples taken at weeks at week 0, 48, 96.

    Time frame: 96 weeks from randomisation (+/- 7 days)

07

Study locations

3 of 3 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Aug 2022 (actual). Primary completion is estimated for Nov 2026, 51 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 11, 2020
First posted
May 19, 2021
StartActual
Aug 17, 2022
Primary completionEst.
Nov 30, 2026
CompletionEst.
Nov 30, 2027
Last update
Oct 25, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 25, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04892654
Lead sponsor
Chelsea and Westminster NHS Foundation Trust
Responsible party
Sponsor
First posted
May 19, 2021
Start date
Aug 17, 2022
Primary completion
Nov 30, 2026 (estimated)
Completion
Nov 30, 2027 (estimated)
Last update
Oct 25, 2023

Study contacts

Research Regulatory Compliance Manager
Contact
chelwest.research@nhs.net
020 3315 6825
Marta Boffito, MD PhD FRCP
principal investigator · Chelsea and Westminster NHS Foundation Trust

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drugs tested here: Doravirine · Dolutegravir

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