TLD HIV Treatment Recommendation
Start antiretroviral therapy (ART) immediately upon HIV diagnosis, ideally within 7 days or even on the same day if the patient is ready and there is no suspicion of opportunistic infection, using an integrase strand transfer inhibitor (InSTI)-based regimen as first-line treatment. 1
Timing of ART Initiation
- Initiate ART as soon as possible after HIV diagnosis, including at the first clinic visit if the patient is ready to commit to treatment 1
- Same-day initiation (rapid start) is recommended when clinically appropriate and has been shown to achieve viral suppression faster (median 1.8 months) compared to delayed initiation (4.3 months) 2
- Remove structural barriers that delay ART receipt to allow newly diagnosed persons to start treatment at the first clinic visit 1
- For acute HIV infection, immediate ART initiation is strongly recommended 1
First-Line Recommended Regimens
The preferred initial regimens consist of an InSTI plus 2 nucleoside reverse transcriptase inhibitors (NRTIs): 1
- Bictegravir/tenofovir alafenamide/emtricitabine (BIC/TAF/FTC) - evidence rating AIa 1
- Dolutegravir (DTG) plus tenofovir alafenamide or tenofovir disoproxil fumarate/emtricitabine or lamivudine - evidence rating AIa 1
- Dolutegravir/abacavir/lamivudine - evidence rating AIa (requires HLA-B*5701 testing first) 1
These regimens are recommended due to high viral suppression rates, excellent tolerability, infrequent toxicity, limited drug-drug interactions, high barrier to resistance, and low pill burden 1
Special Considerations for TLD (Tenofovir/Lamivudine/Dolutegravir)
TLD is a widely used fixed-dose combination, particularly in resource-limited settings, containing:
- Tenofovir disoproxil fumarate (TDF) 300 mg
- Lamivudine (3TC) 300 mg
- Dolutegravir (DTG) 50 mg
Key advantages of TLD:
- Single daily pill regimen enhancing adherence 1
- High barrier to resistance with dolutegravir 1
- Cost-effective, especially in low- and middle-income countries 1
Important caveats for TLD use:
- Avoid tenofovir disoproxil fumarate (TDF) in individuals with or at risk of kidney disease or bone disease (osteopenia/osteoporosis); use tenofovir alafenamide (TAF) instead 1
- Perform HBV screening before initiation, as tenofovir is active against hepatitis B 1
- For pregnant women, dolutegravir is recommended (evidence rating AIb) combined with tenofovir/emtricitabine or lamivudine 1
Baseline Laboratory Testing Before Starting TLD
Required tests before initiating ART: 3
- CD4+ cell count
- HIV RNA viral load
- HIV genotype resistance testing
- HLA-B*5701 testing (if considering abacavir-containing regimens)
- Hepatitis B and C serology
- Basic chemistry panel (including creatinine for renal function assessment)
- Liver function tests
- Pregnancy test in women of childbearing potential
Monitoring After TLD Initiation
- Measure viral load 4-6 weeks after starting ART to assess initial response 3
- Once viral suppression is achieved (<200 copies/mL), monitor every 3 months until suppression is maintained for at least 1 year 3
- After 1 year of sustained viral suppression, monitoring can be reduced to every 6 months 3
- Monitor renal function (creatinine, estimated GFR) at baseline, 2-4 weeks after initiation, and then every 3-6 months due to tenofovir's potential nephrotoxicity 4
Special Situations Requiring Modified Timing
For most opportunistic infections: Initiate ART within 2 weeks of starting treatment for the opportunistic infection 1
For tuberculosis:
- If CD4 count ≥50/μL: Start ART within 2-8 weeks of initiating TB treatment 1
- If CD4 count <50/μL: Start ART within 2 weeks of initiating TB treatment 1
- Important: Dolutegravir requires dose adjustment to 50 mg twice daily when used with rifampin-based TB treatment 1
For cryptococcal meningitis: Initiate ART 2-4 weeks after starting antifungal therapy, with earlier initiation at 2 weeks for those who have clinically improved and have controlled intracranial pressure 1
For TB meningitis: Initiate high-dose corticosteroids and TB treatment immediately, then start ART when TB meningitis is under control (typically 2-4 weeks after starting TB treatment) 1
Common Pitfalls to Avoid
- Do not delay ART initiation - delaying treatment leads to poorer outcomes and increased risk of HIV transmission 3
- Do not use TDF in patients with renal impairment (creatinine clearance <60 mL/min) or bone disease; switch to TAF-based regimens 1
- Do not use bictegravir with rifampin due to significant drug-drug interactions in TB co-infection 1
- Do not skip HBV testing - if HBV co-infection is present, ensure the regimen contains tenofovir (TDF or TAF) plus lamivudine or emtricitabine 1
- Do not assume adherence - provide intensive support, social needs assessment, and frequent follow-up, especially with rapid-start protocols 2
- Do not continue TDF if renal toxicity develops - switch to TAF-based regimen 1
Expected Outcomes with TLD
- Viral suppression (<200 copies/mL) typically achieved within 12-24 weeks of consistent therapy 5
- With rapid-start protocols using integrase inhibitor-based regimens like TLD, viral suppression can occur even faster (median 1.8 months) 2, 6
- Patients with undetectable viral load on ART pose virtually no risk of transmitting HIV through sexual contact (U=U: Undetectable = Untransmittable) 5
- Survival rates among HIV-infected adults retained in care can approach those of uninfected adults 1, 7