Ivonescimab
AK112 (Akeso/Summit) · PD-1 x VEGF bispecific antibody
Two nephrotoxic pathways in one molecule: VEGF-blockade glomerular injury plus checkpoint-inhibitor interstitial nephritis.
Yervoy · Ipi
CTLA-4 checkpoint inhibitor · approved 2011 · 13 citations · FAERS AKI reporting ROR 2.84 (95% CI 2.65–3.03, 869 AKI reports)
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.
The first-approved CTLA-4 blocker whose kidney signature is immune-mediated acute interstitial nephritis, classically granulomatous, with markedly higher AKI risk when combined with nivolumab.
Signature lesion
1–2% range across studies
Clinically significant kidney injury from ipilimumab monotherapy is uncommon; renal immune-related adverse events are reported in roughly 1-2% of patients on single-agent checkpoint blockade. The dominant driver of elevated incidence is combination therapy: in real-world ICI cohorts any-cause AKI reaches about 16-17%, but only a minority is true immune-mediated nephritis. The combination of ipilimumab plus nivolumab carries a substantially higher and more severe AKI risk than either single agent. In a pooled analysis of biopsy-proven ICI-related acute tubulointerstitial nephritis, all patients on dual ICI blockade developed stage 3 AKI versus about half on a single agent, and complete renal recovery was less likely with dual blockade.Source: Single-center cohort: 16.5% (51/309) developed AKI, ~2% biopsy/clinically attributed to ICI nephritis (Meraz-Munoz et al., J Immunother Cancer 2020, PMID 32601079); dual-blockade severity from pooled biopsy analysis (Esposito et al., Front Oncol 2023, PMID 37936605).
Delayed and variable onset, typically weeks to several months (median ~3 months/91 days), though combination therapy can trigger nephritis after one or two doses or even after discontinuation.
Distilled from: “Delayed and variable: typically weeks to several months after initiation. Median time to AKI in biopsy cohorts was roughly 3 months (about 91 days; ~4 cycles); combination ipilimumab/nivolumab nephritis can appear after only one or two doses, and onset after drug discontinuation has been described.”
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 interstitial nephritis (often granulomatous) is the dominant ipilimumab renal lesion; ICI-attributable AKI pooled ~3.5% (overall AKI during ICI therapy ~16%), and ipilimumab is the highest-risk single agent (adjusted OR 2.18) — biopsy series show AIN as the leading pattern.
Second most common (but uncommon) ICI kidney lesion after AIN; biopsy-confirmed cases include membranous nephropathy and minimal-change/podocytopathy. PMID 32601079 (opens PubMed in a new tab)
Case-level thrombotic microangiopathy documented in ICI kidney-biopsy cohorts (2 of 12 biopsy-attributed lesions). PMID 32601079 (opens PubMed in a new tab)
Renal hypoperfusion from capillary leak and cytokine storm — IL-2 and CAR-T cytokine release syndrome.
Slow, cumulative tubulointerstitial scarring — fibrosis, tubular atrophy and glomerulosclerosis with no discrete acute phase. The nitrosourea (carmustine/lomustine) lesion and delayed radioligand (radiation) nephropathy; often irreversible and detected only as a creeping creatinine months to years later.
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.
Ipilimumab is a fully human IgG1 monoclonal antibody against cytotoxic T-lymphocyte antigen 4 (CTLA-4), an inhibitory receptor upregulated on activated T cells and constitutively expressed on regulatory T cells. By blocking CTLA-4 engagement of its B7 ligands (CD80/CD86) on antigen-presenting cells, ipilimumab removes an early "checkpoint" brake on T-cell priming in lymph nodes, amplifying antitumor T-cell activation and proliferation and depleting intratumoral regulatory T cells. It was the first immune checkpoint inhibitor to gain FDA approval (2011, advanced melanoma) and is most often used today combined with the PD-1 inhibitor nivolumab.
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 CTLA-4 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
10 primary references — trials, cohorts, mechanism, and reviews. Single-patient case reports are listed separately below, graded by strength. 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.
Single-patient and small-series reports, graded by evidentiary strength — A Strong (biopsy-proven plus a series and/or positive rechallenge), B Moderate, and C Limited (a single clinically-diagnosed case). Strongest first. Grades are inferred automatically from each report's abstract and journal — a heuristic ranking aid, not a formal quality appraisal.
Everything below is FAERS — adverse events someone chose to report, about 42,912 of them for this agent. Nobody counts the patients who were fine, so none of these numbers is an incidence, a risk, or a rate: they describe what gets reported, shaped by a drug's fame, its indication, and who was watching. How these numbers work.
Only significant signals appear (95% CI lower bound above 1) — a phenotype missing here was tested and did not reach significance, except Prerenal / Hemodynamic AKI, Pseudo-AKI, Renal Cysts, Chronic Interstitial Nephropathy — outside the clinician-reviewed MedDRA term map, never queried — and ATN and AIN, queried but biopsy-bound: real cases are filed as generic “acute kidney injury”, so their absence is not a negative. As of 2026-10-01.
What reporting says about this profile's documented lesions
Reported with a death outcome
9,585 of 42,912 reports
Reported with hospitalization
19,401 of 42,912 reports
Reports per year
Yearly FAERS report volume · most recent year is partial.
Bars rank systems by summed reaction-term mentions (a report counts once per term it names) — an ordinal “more vs less reported” cue, not a tally of distinct reports. Renal & urinary first. As of 2026-10-01.
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 Ipilimumab 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.
AK112 (Akeso/Summit) · PD-1 x VEGF bispecific antibody
Two nephrotoxic pathways in one molecule: VEGF-blockade glomerular injury plus checkpoint-inhibitor interstitial nephritis.
Tevimbra · PD-1 immune checkpoint inhibitor
A PD-1 blocker whose kidney risk is the class-typical rare immune-mediated interstitial nephritis.
Keytruda · PD-1 checkpoint inhibitor
PD-1 inhibitor; ICI interstitial nephritis, varied glomerular lesions.
Opdivo · PD-1 checkpoint inhibitor
PD-1 inhibitor; ICI acute interstitial nephritis is the prototype.
Mekinist · MEK inhibitor
MEK inhibitor; hypertension, proteinuria, and combination-therapy AKI.
Bavencio · Anti-PD-L1 antibody
ICI-associated AIN.
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.
The leading contributors to Ipilimumab’s clinical kidney literature on PubMed, ranked by a blend of publication volume and citation impact — filtered toward clinical work via the PubMed Humans heading and clinical publication types (trials, cohorts, case reports, guidelines, reviews). Names link to that author’s work on Ipilimumab; the PMIDs beside each name are up to three of their most recent papers on it, not the full count.
Ranked by a 50/50 blend of publication volume and a position-weighted, capped Relative Citation Ratio (NIH iCite) on this agent’s renal literature; the citation count shown is the raw total, not the ranking score — counted over the 83 clinical records among all 97 PubMed matches, so counts are within-sample — bibliometric context, not an endorsement or a measure of clinical authority.