Nemvaleukin alfa monotherapy in patients with advanced melanoma and renal cell carcinoma: results from the phase 1/2 non-randomized ARTISTRY-1 trial
Bibliographic record
Abstract
Background Despite improved outcomes with immune checkpoint inhibitors (ICIs) and their combinations in advanced solid tumors, a subset of patients remains unresponsive or progresses, highlighting an unmet need for novel treatments with durable benefit. Nemvaleukin alfa (nemvaleukin, ALKS 4230) demonstrated manageable safety and antitumor activity, alone and in combination with pembrolizumab, across heavily pretreated advanced solid tumors in the ARTISTRY-1 study. We report in-depth antitumor activity, safety, pharmacokinetics, and pharmacodynamics of nemvaleukin monotherapy at the recommended phase 2 dose (RP2D) in advanced melanoma and renal cell carcinoma (RCC) cohorts from ARTISTRY-1. Methods ARTISTRY-1 was a three-part (A, B, and C), multicenter, open-label, phase 1/2 study. Adult patients who had received prior treatment, including ICIs, and had advanced melanoma or RCC were enrolled in Part B. Patients received intravenous nemvaleukin once daily on days 1–5 (21-day cycle) at 6 µg/kg/day (RP2D determined from Part A). Primary endpoints for Part B were overall response rate (ORR) and safety. Secondary endpoints included pharmacokinetic and pharmacodynamic measures. Results From July 2016 to March 2023, 74 patients in Part B received nemvaleukin monotherapy (melanoma, n=47; RCC, n=27). ORR in melanoma and RCC cohorts was 9% (95% CI, 2% to 21%; n=4) and 14% (95% CI, 3% to 35%; n=3), respectively; disease control rate was 50% (95% CI, 35% to 65%; n=23) and 50% (95% CI, 28% to 72%, n=11), respectively, with stable disease ≥6 months observed in 3 (7%) and 2 (9%) patients, respectively. The most common nemvaleukin-related treatment-emergent adverse event of grade 3–4 was neutropenia (melanoma, n=27 (57%); RCC, n=9 (33%)). No patients in either cohort experienced grade ≥3 treatment-emergent adverse events (TEAEs) of cytokine release syndrome or infusion-related reaction. There were no reported capillary leak syndrome TEAEs. Pharmacokinetic parameters for extent and duration of nemvaleukin exposure were similar between the two cohorts. Increases in peripheral CD8 + T-cell and natural killer cell populations from baseline were similar between the two cohorts, with minimal changes in regulatory T cells observed. Conclusions Nemvaleukin demonstrated pharmacodynamic proof of mechanism, with single-agent antitumor activity and manageable safety in patients with advanced melanoma and RCC. Trial registration number NCT02799095 .
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".