Penpulimab
Penpulimab (AK105) · PD-1 immune checkpoint inhibitor
Fc-silent PD-1 blocker for nasopharyngeal carcinoma — class-typical, infrequent immune interstitial nephritis
PD-L1 immune checkpoint inhibitor
Cejemly · PD-L1 inhibitor
PD-L1 immune checkpoint inhibitor · approved 2021 · 5 citations
Describes how this page is sourced, not how dangerous the drug is. Thinly sourced means fewer of the sourcing signals are met — not that the agent is kidney-safe. A rule-based summary, not a formal certainty appraisal.
A full-length anti-PD-L1 antibody whose kidney is its immune system: rare but real autoimmune interstitial nephritis.
Signature lesion
No sugemalimab-specific renal-injury incidence has been published; the GEMSTONE registrational trials reported no nephritis among the most common grade 3-4 treatment-related adverse events (which were dominated by myelosuppression and immune-mediated pneumonitis). By extrapolation from the PD-1/PD-L1 checkpoint-inhibitor class, immune-related AKI occurs in roughly 2-5% of treated patients (higher with combination checkpoint blockade), with clinically significant/biopsy-confirmed acute interstitial nephritis being the dominant lesion. A separate real-world cohort of 1,037 ICI-treated patients supplies the drug-attributable denominator this class otherwise lacks: 18.2% developed AKI of any cause, but only 3.6% (37 patients) had AKI attributed to the checkpoint inhibitor itself — a class figure, not a sugemalimab-specific one.Source: Drug-attributable ICI-AKI rate (3.6%) from Lumlertgul et al., Eur J Cancer 2023 (PMID 37499561); class incidence and lesion distribution from Cortazar et al., J Am Soc Nephrol 2020 (PMID 31896554) and the ASON position statement, Kidney Int 2024 (PMID 39455026); sugemalimab trial safety from GEMSTONE-302 (PMID 35038432) and GEMSTONE-301 (PMID 35038429), in which renal events were not among the prominent toxicities.
Median ~14 weeks (IQR 6–37) from ICI start to AKI — later than most drug-induced AIN.
Distilled from: “Delayed — typically weeks to months after initiation; in the multicenter ICI-AKI cohort median time from checkpoint-inhibitor start to AKI was about 14 weeks (IQR 6-37), later than most other drug-induced AIN.” · PMID 31896554 (opens PubMed in a new tab)
In the multicenter ICI-AKI cohort ~22% were rechallenged and ~23% of those developed recurrent AKI — feasible but an individualized, co-managed decision. PMID 31896554 (opens PubMed in a new tab)
Class-level checkpoint-inhibitor AKI recovery: in a 138-patient multicenter ICI-AKI cohort, complete, partial, and no recovery of kidney function occurred in roughly 40%, 45%, and 15% of patients respectively. Two covariates carried a better renal prognosis — treatment with steroids, and the PRESENCE of a concomitant tubulointerstitial-nephritis-causing medication (69% of patients were on one). The second is an observational association, not an intervention: the cohort analysed no effect of stopping that drug, and the likeliest reading is that a competing culprit makes the ICI a less certain cause. Rechallenge is feasible in selected patients but recurrent AKI occurs in about a quarter.PMID 31896554 (opens PubMed in a new tab)
Long-term outcome and threshold data distilled from the agent's cited literature — educational, not a substitute for the primary sources.
Recovery across agentsThis agent's kidney lesions ordered by prominence — the #1 signature lesion first, then secondary and rare patterns. Cited incidence is shown where a citable figure exists; otherwise the tier stands qualitatively.
Acute tubulointerstitial nephritis is the signature ICI renal lesion — dominant in 93% of the 60 biopsied patients in a 138-patient multicenter ICI-AKI cohort (a biopsy-lesion proportion, not a treated-population incidence). PMID 31896554 (opens PubMed in a new tab)
Renal electrolyte derangement — magnesium/potassium/calcium wasting (cisplatin, anti-EGFR antibodies) or retention (FGFR-inhibitor hyperphosphatemia, tumor-lysis hyperkalemia/hyperphosphatemia).
Minority histologic pattern — tubulointerstitial nephritis dominates 93% of ICI-AKI biopsies, with ATN and other lesions making up the remainder. PMID 31896554 (opens PubMed in a new tab)
Case-level; glomerular lesions (2 membranous nephropathy, 2 minimal change disease) among 12 biopsy/nephrologist-attributed ICI nephrotoxicity cases. PMID 32601079 (opens PubMed in a new tab)
Tap a signature to trace where it strikes the nephron.
Acute Interstitial Nephritis
Immune-mediated inflammation of the renal interstitium — the signature kidney injury of checkpoint inhibitors.
Sugemalimab is a fully human IgG4 monoclonal antibody that binds programmed death-ligand 1 (PD-L1) on tumor cells and antigen-presenting cells, blocking its engagement of PD-1 (and CD80) on T cells. This releases the inhibitory brake on tumor-reactive cytotoxic T lymphocytes, restoring antitumor immunity. It was developed and validated in the GEMSTONE-301 (stage III unresectable NSCLC consolidation) and GEMSTONE-302 (first-line metastatic NSCLC) phase 3 trials.
27 grade-indexed syndromes across 11 organ systems, written for checkpoint blockade as a class rather than per agent — where a rate differs between anti-PD-1, anti-PD-L1, anti-CTLA-4 and combination therapy, the card names the class it was measured in.
Class-level context for the major non-renal toxicities of the PD-L1 immune checkpoint inhibitor class.
Endocrine
Thyroiditis, hypophysitis, diabetes
Gastrointestinal
Diarrhea, colitis, mucositis, perforation
Hepatic / Liver
Transaminitis, hepatitis, VOD/SOS
Pulmonary
Pneumonitis, ILD, effusions, hypertension
Dermatologic
Rash, HFS, SJS/TEN, vitiligo
5 primary references — trials, cohorts, mechanism, and reviews. Citation metadata via PubMed / NLM.
Primary (non–case-report) references per year — a proxy for how actively the agent's renal literature is accruing. Recent years are highlighted. Reflects curation depth, not a systematic bibliometric count.
Each recommendation below is this atlas's faithful summary of the source, not a quotation from it — follow the PubMed link for the wording the society published. Summaries may be superseded; consult the current full text and individualize to the patient.
General onco-nephrology references
Where Sugemalimab sits in nephrotoxicity space — each dot is an anti-cancer agent, positioned so neighbors share a kidney-injury phenotype. Its 6 closest are filled and lead to a numbered marker, matching the numbered cards below.
Penpulimab (AK105) · PD-1 immune checkpoint inhibitor
Fc-silent PD-1 blocker for nasopharyngeal carcinoma — class-typical, infrequent immune interstitial nephritis
Loqtorzi · PD-1 immune checkpoint inhibitor
First FDA-approved drug for nasopharyngeal carcinoma; renal risk is class-typical immune-mediated interstitial nephritis.
Unloxcyt · PD-L1 immune checkpoint inhibitor
PD-L1 blockade for cutaneous SCC — watch for late immune interstitial nephritis
Opdivo · PD-1 checkpoint inhibitor
PD-1 inhibitor; ICI acute interstitial nephritis is the prototype.
Immune checkpoint inhibitor
Acute interstitial nephritis with long latency.
Keytruda · PD-1 checkpoint inhibitor
PD-1 inhibitor; ICI interstitial nephritis, varied glomerular lesions.
Nearest agents by kidney-injury phenotype (shared injuries, nephron target, severity, class) — a similarity approximation, not a claim of shared drug identity or mechanism.
Same-class agents ordered by their documented kidney-injury profile — atlas severity, an acute-kidney-injury FAERS signal, and how many injury types each is documented to cause. Agents nearer the top carry the lighter documented renal profile.
A comparison of documented kidney-injury data within one drug class — not a substitution recommendation. Efficacy, indication, and non-renal toxicity differ between these agents and are out of scope here. Educational only, not medical advice.