Abacavir/Lamivudine Fixed-Dose Combination With Ritonavir-Boosted Darunavir: A Safe and Efficacious Regimen for HIV Therapy
Why this work is in the frame
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Bibliographic record
Abstract
BACKGROUND: Current treatment guidelines recommend the use of tenofovir (TDF) and emtricitabine (FTC) along with a third agent to treat HIV-positive adults. However, other treatment options, including the use of abacavir (ABC) and lamivudine (3TC) when used with ritonavir-boosted darunavir (DRV/r), have rarely been studied. OBJECTIVE: We evaluated the safety and efficacy of the coformulation of ABC/3TC administered with DRV/r in treatment-naïve and treatment-experienced patients. METHODS: HIV-infected adults who received an open-label combination of ABC/3TC/ DRV/r were followed in a community clinic in Montréal. Patients had no resistance to any of the compounds in their regimen. Viral load (VL), CD4 cell count, AST, ALT, and creatinine levels were examined throughout the 48 weeks of follow-up. RESULTS: Sixty-seven patients with a mean age of 45 years were enrolled. Two did not return for follow-up and were excluded. Thirty-five (52%) were treatment- experienced and the remaining were treatment-naïve. HLA-B*5701 test results were available for 56 patients and none were positive. At baseline, mean VL was 4.8 log for treatment-naïve and 2.3 log for experienced patients. Twelve patients discontinued the study regimen prior to reaching the endpoint. At week 48, 79% had a VL <50. Median CD4 cell gain was higher among treatment-naïve patients (273 cells) than among treatment-experienced patients (102 cells) (P = .002). No patient experienced any grade 2 or higher liver enzyme elevation throughout the study. CONCLUSIONS: The new combination of ABC/3TC/DRV/r demonstrates a high rate of antiviral activity with no major toxicity. The drug combination appears to be generally safe and well tolerated.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.006 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it