Casdatifan
HIF-2α inhibitor (investigational)
Trial-stage RCC HIF-2α inhibitor; renal profile being defined.
Cereblon E3 ligase modulator (CELMoD)
Zenbexus · IBER
Cereblon E3 ligase modulator (CELMoD) · approved 2026 · 7 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.
The first approved cereblon E3 ligase modulator, whose kidney relevance runs the other way — the drug accumulates below eGFR 30 and the dose drops, while its randomized safety table shows no excess renal impairment over the comparator arm.
Signature lesion
No renal lesion is attributed to iberdomide, and the randomized comparison is the reason that can be said plainly rather than assumed. In the FDA label's EXCALIBER-RRMM safety population, renal impairment - a composite adverse-reaction term - occurred in 11% of patients on iberdomide with daratumumab/hyaluronidase and dexamethasone (N=204) and in 8% on the daratumumab/hyaluronidase, bortezomib and dexamethasone comparator arm (N=204), with grade 3-4 rates of 3.4% and 3.9% respectively - numerically lower on the iberdomide arm. In relapsed or refractory myeloma the kidney is a target organ of the disease itself (cast nephropathy, hypercalcemia, volume depletion), so a single-arm rate of 11% would have read as drug toxicity; the comparator shows most of it belongs to the population. The label carries no renal warning, and the boxed warning is embryo-fetal toxicity and serious venous and arterial thromboembolism. Phase 3 results are not yet published, so these figures come from the label rather than from a peer-reviewed report.Source: No drug-attributable renal incidence: renal impairment 11% all-grade / 3.4% grade 3-4 on the iberdomide arm (N=204) versus 8% / 3.9% on the DVd comparator arm (N=204), FDA label EXCALIBER-RRMM safety population
This agent's defining kidney lesion — its #1 signature. Cited incidence is shown where a citable figure exists; otherwise the tier stands qualitatively.
Renal hypoperfusion from capillary leak and cytokine storm — IL-2 and CAR-T cytokine release syndrome.
Oral cereblon E3 ubiquitin ligase modulator (CELMoD) that binds cereblon with greater affinity than the earlier immunomodulatory drugs and drives ubiquitination and degradation of the transcription factors Ikaros (IKZF1) and Aiolos (IKZF3), producing both direct myeloma-cell death and immune activation. Given as 1 mg orally once daily on Days 1 to 21 of a 28-day cycle in combination with subcutaneous daratumumab and hyaluronidase-fihj and dexamethasone. The August 2026 approval is an accelerated approval based on minimal residual disease-negative complete response, a surrogate endpoint; continued approval may be contingent on confirmatory trials.
Vasculature / Endothelium
Glomerular & peritubular capillaries
7 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.
Quoted verbatim from this agent's current FDA label (Aug 2026) — not paraphrased or interpreted. Full label on DailyMed .
Boxed warning
WARNING: EMBRYO-FETAL TOXICITY and SERIOUS VENOUS AND ARTERIAL THROMBOEMBOLISM EMBRYO-FETAL TOXICITY ZENBEXUS is contraindicated in pregnancy. ZENBEXUS is embryo-fetal toxic in animals and can cause birth defects or embryo-fetal death in humans. In females of reproductive potential, obtain 2 negative pregnancy tests before starting ZENBEXUS treatment [ Contraindications (4) , see Warnings and Precautions (5.1) and Use in Specific Populations (8.1 , 8.3) ] . Females of reproductive potential must use 2 effective forms of contraception or continuously abstain from heterosexual sex during and for 4 weeks after last dose of ZENBEXUS treatment [see Contraindications (4) , Warnings and Precautions (5.1) , and Use in Specific Populations (8.1 , 8.3) ] . Because of the risk of embryo-fetal toxicity, ZENBEXUS is only available through a restricted distribution program called ZENBEXUS REMS [see Warnings and Precautions (5.2) ] . Information about ZENBEXUS REMS is available at www.ZENBEXUSREMS.com or by calling the REMS Call Center at 1-888-423-5436. SERIOUS VENOUS AND ARTERIAL THROMBOEMBOLISM Increased risk of deep venous thrombosis (DVT), pulmonary embolism (PE), myocardial infarction, and stroke in patients with multiple myeloma receiving ZENBEXUS with daratumumab and hyaluronidase-fihj and dexamethasone. Anti-thrombotic prophylaxis is recommended [see Warnings and Precautions (5.3) ]…
Renal impairment — from the label
Reduce ZENBEXUS dose in patients with eGFR less than 30 mL/min/1.73 m 2 not on dialysis [see Dosage and Administration (2.5) ] . Iberdomide exposure increased in subjects with eGFR less than 30 mL/min/1.73 m 2 not on dialysis [see Clinical Pharmacology (12.3) ] , which may increase the risk of adverse reactions.
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 Iberdomide 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.
HIF-2α inhibitor (investigational)
Trial-stage RCC HIF-2α inhibitor; renal profile being defined.
Modeyso · Imipridone (ONC201; DRD2/ClpP)
2025 imipridone for H3 K27M glioma; renally well tolerated — QT prolongation, not nephrotoxicity, is the safety focus.
Welireg · HIF-2α inhibitor
Anemia/hypoxia; emerging renal profile in VHL/RCC.
Lymphir · Immunotoxin (IL-2–diphtheria)
Capillary-leak syndrome → prerenal AKI.
Veppanu · PROTAC estrogen-receptor degrader
2026 first PROTAC ER degrader; no meaningful intrinsic renal signal.
Jideytro · ROS1-selective TKI
2026 TRK-sparing ROS1 TKI; no creatinine abnormality reached the label's >=20% lab-table cutoff — unlike the class's benign pseudo-AKI rise. Renally quiet so far.
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.