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Triumeq in Amyotrophic Lateral Sclerosis

Randomised Double-Blind Placebo-Controlled Phase 3 Trial of Triumeq in Amyotrophic Lateral Sclerosis

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05193994
Acronym
LIGHTHOUSE II
Enrollment
419
Registered
2022-01-18
Start date
2022-02-24
Completion date
2025-06-30
Last updated
2025-07-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amyotrophic Lateral Sclerosis

Keywords

ALS

Brief summary

To determine if Triumeq improves survival in Amyotrophic Lateral Sclerosis (ALS) compared with placebo

Detailed description

This Randomised Double-Blind Placebo Controlled trial seeks to investigate whether the combination medicine Triumeq (dolutegravir 50mg, abacavir 600mg, lamivudine 300mg), already sold in Australia for HIV treatment is effective in delaying progression of theAmyotrophic Lateral Sclerosis (ALS) disease and if it is safe and well tolerated in patients with ALS. This medication is very commonly prescribed for patients with HIV. The secondary aim of this study is to assess patient's health outcomes whilst taking this medication for their ALS.

Interventions

DRUGDolutegravir, Abacavir and Lamivudine

Dolutegravir 50mg, Abacavir 600mg and Lamivudine 300mg.

DRUGPlacebo

Matching placebo.

Sponsors

King's College London
CollaboratorOTHER
Stichting TRICALS Foundation
CollaboratorOTHER
Macquarie University, Australia
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Double-blind

Intervention model description

Participants will be randomised in a 2:1 ratio to receive either triumeq or placebo

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥ 18 years at the time of screening 2. Diagnosis of ALS according to the Gold Coast Criteria 3. Capable of providing informed consent and complying with trial procedures 4. TRICALS risk profile \> -6.0 and \< -2.0 5. Those taking Riluzole must be on a stable dose for at least 30 days prior to the baseline visit or must have stopped taking Riluzole at least 30 days prior to the baseline visit 6. Women must not become pregnant (e.g., post-menopausal, surgically sterile, using highly effective birth control methods or not having potentially reproductive sex) for the duration of the study plus five days. Highly effective methods of birth control are those with a failure rate of \< 1% per year when employed consistently and correctly, e.g. Combined (oestrogen and progestogen containing) hormonal contraception or progestogen-only hormonal contraception. For more information, please refer to the HMA CTFG Guidelines: https://www.hma.eu/fileadmin/dateien/Human\_Medicines/01-About\_HMA/Working\_Groups/CTFG/2014\_09\_HMA\_CTFG\_Contraception.pdf?fbclid=IwAR3AY5Ha0ESDyqIBeUaYI9VTFWmx9bbt8NZ-80N-5ME6pkBb1UHvFsTwqlQ 7. Women of childbearing potential must have a negative serum pregnancy test at screening and be non-lactating. Patients will be advised regarding appropriate contraception. A menstruation history will be taken at each visit. Women of childbearing potential are defined as females who are fertile, following menarche and until becoming post-menopausal unless permanently sterile. Permanent sterilisation methods include hysterectomy, bilateral salpingectomy and bilateral oophorectomy (https://www.hma.eu/fileadmin/dateien/Human\_Medicines/01-About\_HMA/Working\_Groups/CTFG/2014\_09\_HMA\_CTFG\_Contraception.pdf?fbclid=IwAR3AY5Ha0ESDyqIBeUaYI9VTFWmx9bbt8NZ-80N-5ME6pkBb1UHvFsTwqlQ) 8. For participants taking antacids (regularly or as required), participant is willing and able to avoid taking antacids for at least 6 hours before and 2 hours after Triumeq 9. Participant taking taurursodiol supplements (TUDCA) can participate in this trial if the supplement does not contain sodium phenylbutyrate. 10. Participants taking taurursodiol supplements (TUDCA) that also contain sodium phenylbutyrate must be willing to stop supplementation 30 days prior randomisation.

Exclusion criteria

1. People who are HLA-B\*5701 positive 2. Known hypersensitivity to Dolutegravir, Abacavir or Lamivudine, or to any of the excipients 3. Safety Laboratory Criteria at screening: * ALT ≥ 5 times upper limit of normal (ULN) * AST ≥ 3 times ULN * Bilirubin ≥ 1.5 times ULN with clinical indicators of liver disease * Creatinine clearance \< 30 mL / min * Platelet concentration of \< 100 x109 per L * Absolute neutrophil count of \< 1x109 per L * Haemoglobin \< 100 g/L * Amylase ≥ 2 times ULN * Lactate ≥ 2 times ULN 4. Moderate to severe hepatic impairment, as defined by local clinical guidelines 5. Presence of HIV antibodies at screening 6. Presence of Hepatitis C antibodies at screening unless participants have had effective treatment for Hepatitis C 7. Presence of Hepatitis B core or surface antigen at screening 8. Participation in any other investigational drug trial or using investigational drug within 30 days prior to screening 9. Use of NIV ≥22 h per day or having a tracheostomy 10. Edaravone dose within 30 days prior to screening. Edaravone is approved by the FDA and in Japan, but remains an investigational product in Europe and Australia 11. Clinically significant history of unstable or severe cardiac, oncological, psychiatric, hepatic, or renal disease or other medically significant illness 12. Taking medication contraindicated with Triumeq: Dofetilideor Fampridine (dalfampridine) 13. Taking Tofersen within 3 months prior to screening.

Design outcomes

Primary

MeasureTime frameDescription
Measure overall survival at 24 months or after a minimum of 212 events24 monthsOverall survival is measured as death from any cause, in participants with ALS at 24 months, or after a minimum of 212 events.

Secondary

MeasureTime frameDescription
Number of participants with abnormal Slow Vital Capacity measured by hand spirometry at 3 monthly intervals24 monthsSlow vital capacity is measured in litres, and as a % of predicted.
Measure plasma creatinine at 3 monthly intervals24 monthsPlasma creatinine is assessed to monitor kidney function
Assign a value using the King's Staging Scale to describe degree of disease advancement over time24 monthsThe King's Staging Scale is a clinical staging system defining four stages of ALS assessed by way of a semi-structured interview with the participant.
Evaluate the incidence of treatment-emergent adverse events24 monthsbased on physical examinations and patient reported symptoms.
Measure scoring in the ALS-Functional Rating Scale Revised (ALSFRS-R) at 3 monthly intervals.24 monthsThe ALSFRS-R is a 12 item participant self-report measure that monitors ALS disease progression, where a higher score reflects a better outcome.
Measure the score obtained with the Edinburgh Cognitive and Behavioural Assessment Screen (ECAS)24 monthsECAS is a multidomain assessment questionnaire used in ALS to assess cognitive and behavioural changes where a higher score relates to a better outcome.
Measure the responses in the EQ-5D-5L quality of life health questionnaire.24 monthsThe EQ-5D-5L questionnaire is a standardised measure of health-related Quality of Life, also incorporating a Visual Analogue Scale. A higher score relates to a better outcome.
Measurement of several biomarkers from blood and urine samples24 monthsUrinary P75ECD, plasma neurofilament light and heavy chain, HERV-K expression and genotyping (UNC13a / C9orf72) will be measured for post-trial exploratory analyses.
Measure study medication discontinuation24 monthsthe number of participants who discontinue study medication will be assessed to assess tolerability

Countries

Australia, Ireland, Netherlands, New Zealand, Slovenia, Spain, Sweden, United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026