Ipilimumab
/api/v1/drug/ipilimumabMechanism of action
Sourced from openFDACTLA-4 is a negative regulator of T-cell activity. Ipilimumab is a monoclonal antibody that binds to CTLA-4 and blocks the interaction of CTLA-4 with its ligands, CD80/CD86.
Indications
Sourced from openFDA- YERVOY is a human cytotoxic T-lymphocyte antigen 4 (CTLA-4)-blocking antibody indicated for: Melanoma • Treatment of unresectable or metastatic melanoma in adults and pediatric patients 12 years and older as a single agent or in combination with nivolumab. (1.1) • Adjuvant treatment of adult patients with cutaneous melanoma with pathologic involvement of regional lymph nodes of more than 1 mm who have undergone complete resection, including total lymphadenectomy.ICD-10: C43.9
Contraindications
Sourced from openFDA- None. • None.contraindicated
Dosage & administration
Sourced from openFDA• Administer by intravenous infusion after dilution based upon recommended infusion rate for each indication. (2) • Unresectable or Metastatic Melanoma : ∘ YERVOY 3 mg/kg every 3 weeks for a maximum of 4 doses. (2.2) ∘ YERVOY 3 mg/kg immediately following nivolumab 1 mg/kg on the same day, every 3 weeks for 4 doses. After completing 4 doses of the combination, administer nivolumab as a single agent as recommended in the Full Prescribing Information for nivolumab. (2.2) • Adjuvant Treatment of Melanoma : YERVOY 3 mg/kg every 3 weeks for 4 doses, followed by 3 mg/kg every 12 weeks for up to 4 additional doses. (2.2) • Advanced Renal Cell Carcinoma : YERVOY 1 mg/kg immediately following nivolumab 3 mg/kg on the same day, every 3 weeks for 4 doses. After completing 4 doses of the combination, administer nivolumab as a single agent as recommended in Full Prescribing Information for nivolumab. (2.2) • Treatment of microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) colorectal cancer in combination with nivolumab : ∘ Adult and pediatric patients weighing 40 kg or greater: YERVOY 1 mg/kg immediately following nivolumab 240 mg on the same day every 3 weeks for a maximum of 4 doses. After completing the combination, administer nivolumab as a single agent as recommended in Full Prescribing Information for nivolumab. (2.2) ∘ Pediatric patients weighing less than 40 kg: YERVOY 1 mg/kg immediately following nivolumab 3 mg/kg on the same day every 3 weeks for a maximum of 4 doses.
Warnings & precautions
Sourced from openFDA• Severe and Fatal Immune-Mediated Adverse Reactions : Immune-mediated adverse reactions (IMAR) can occur in any organ system or tissue, including the following: immune-mediated colitis, immune-mediated hepatitis, immune-mediated dermatologic adverse reactions, immune-mediated endocrinopathies, immune-mediated pneumonitis, and immune-mediated nephritis with renal dysfunction, and can occur at any time during treatment or after discontinuation. Monitor for symptoms and signs that may be clinical manifestations of IMAR. Evaluate clinical chemistries including liver enzymes, creatinine, adrenocorticotropic hormone level and thyroid function including at baseline and before each dose. In general, withhold YERVOY for severe (grade 3) and permanently discontinue for life-threatening (grade 4) immune-mediated adverse reactions. See Full Prescribing Information for additional dosage modifications. ( 2.3 , 5.1 ) • Infusion-Related Reactions : Discontinue for severe and life-threatening infusion-related reactions. Interrupt or slow the rate of infusion in patients with mild or moderate infusion-related reactions. ( 2.3 , 5.2 ) • Complications of allogeneic HSCT : Fatal and other serious complications can occur in patients who receive allogeneic HSCT before or after being treated with YERVOY. (5.3) • Embryo-Fetal Toxicity : Can cause fetal harm. Advise of potential risk to a fetus and use of effective contraception.
Adverse reactions
Sourced from openFDAThe following clinically significant adverse reactions are described elsewhere in the labeling: • Severe and fatal immune-mediated adverse reactions [see Warnings and Precautions (5.1) ] . • Infusion-related reactions [see Warnings and Precautions (5.2) ] . Most common adverse reactions (≥20%) with YERVOY as a single agent are fatigue, diarrhea, pruritus, rash, nausea, and headache. (6.1) Most common adverse reactions (≥20%) with YERVOY in combination with nivolumab are fatigue, diarrhea, rash, pruritus, nausea, musculoskeletal pain, pyrexia, cough, decreased appetite, vomiting, abdominal pain, dyspnea, upper respiratory tract infection, arthralgia, headache, hypothyroidism, constipation, decreased weight, and dizziness. (6.1) Most common adverse reactions (≥20%) with YERVOY in combination with nivolumab and platinum-doublet chemotherapy are fatigue, musculoskeletal pain, nausea, diarrhea, rash, decreased appetite, constipation, and pruritus. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Bristol-Myers Squibb at 1-800-721-5072 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.
Use in specific populations
Sourced from openFDA• Lactation : Advise not to breastfeed. ( 8.2 ) 8.1 Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action [see Clinical Pharmacology (12.1) ] , YERVOY can cause fetal harm when administered to a pregnant woman. There is insufficient human data for YERVOY exposure in pregnant women. In animal reproduction studies, administration of ipilimumab to cynomolgus monkeys from the onset of organogenesis through delivery resulted in higher incidences of abortion, stillbirth, premature delivery (with corresponding lower birth weight), and higher incidences of infant mortality in a dose-related manner (see Data ) . The effects of ipilimumab are likely to be greater during the second and third trimesters of pregnancy. Human IgG1 is known to cross the placental barrier and ipilimumab is an IgG1; therefore, ipilimumab has the potential to be transmitted from the mother to the developing fetus. Advise pregnant women of the potential risk to a fetus. Report pregnancies to Bristol-Myers Squibb at 1-844-593-7869. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Pharmacokinetics
Sourced from openFDA- Metabolism
- The pharmacokinetics (PK) of ipilimumab was studied in 785 patients with unresectable or metastatic melanoma who received doses of 0.3, 3, or 10 mg/kg once every 3 weeks for 4 doses. The PK of ipilimumab is linear in the dose range of 0.3 mg/kg to 10 mg/kg.
Approval history
Sourced from openFDA- Mar 25, 2011BLABLA125377Bristol Myers Squibb
FAERS reports
- 1Death4,30510%
- 2Malignant Neoplasm Progression3,7178.8%
- 3Diarrhoea3,0957.4%
- 4Off Label Use2,4155.7%
- 5Colitis2,2825.4%
- 6Pyrexia2,0244.8%
- 7Rash1,7894.3%
- 8Fatigue1,6754.0%
- 9Nausea1,3703.3%
- 10Intentional Product Use Issue1,3483.2%
- 11Decreased Appetite1,1042.6%
- 12Immune-mediated Enterocolitis1,0672.5%
- 13Hypophysitis1,0632.5%
- 14Vomiting1,0442.5%
- 15Dyspnoea9982.4%
Literature
Recent PubMed references pinned to Ipilimumab as a MeSH major topic. Citations link to pubmed.ncbi.nlm.nih.gov.
- Three-factor Clinical Score for First-line Nivolumab Plus Ipilimumab in Metastatic Renal Cell Carcinoma.Anticancer research · 2026 · Yanishi M, Nakamoto T, Yoshida T, et al.PMID 42203341DOI 10.21873/anticanres.18213
- Systematic monitoring identified a high incidence of hypopituitarism following combined ipilimumab plus nivolumab therapy for metastatic melanoma.Frontiers in endocrinology · 2026 · Hasan M, Samlowski W, Nakhle S, et al.PMID 42181194DOI 10.3389/fendo.2026.1827644
- HLA Class II Alleles DRB1*11:01 and DQB1*03:01 Unmask Immunogenetic Susceptibility to Anti-Nivolumab Antibodies in Combination with Ipilimumab.The AAPS journal · 2026 · Rajendran S, Gutierrez AH, Chien MS, et al.PMID 42162441DOI 10.1208/s12248-026-01244-9
- The case for tumour-agnostic reimbursement of dual immunotherapy.European journal of cancer (Oxford, England : 1990) · 2026 · Subbiah V, Kurzrock RPMID 42106259DOI 10.1016/j.ejca.2026.116784
- Incidence and impact of pseudoprogression and mixed responses in metastatic renal cell carcinoma patients treated with ipilimumab/nivolumab: a retrospective analysis.Acta oncologica (Stockholm, Sweden) · 2026 · Caeyman A, Mammone G, Kinget L, et al.PMID 42089693DOI 10.2340/ao.v65.45460
- Discontinuation of combo immunotherapy and outcome of patients with melanoma brain metastases.Journal for immunotherapy of cancer · 2026 · Mandalà M, Chen MF, Sullivan RJ, et al.PMID 42082273DOI 10.1136/jitc-2026-015063
- Clinical activity and safety of nivolumab in combination with ipilimumab in metastatic melanoma: findings from REALIPINIVO, a real-world study.Frontiers in immunology · 2026 · Caraglia F, Argenziano G, Scala M, et al.PMID 42079618DOI 10.3389/fimmu.2026.1738772
- Nivolumab Plus Ipilimumab in Patients With Solid Tumors With High Tumor Mutation Burden: Results From the Targeted Agent and Profiling Utilization Registry Study.JCO precision oncology · 2026 · Cobain EF, Rothe M, Garrett-Mayer E, et al.PMID 42060861DOI 10.1200/PO-25-01205
Clinical trials
The 10 most recently updated of 956 ClinicalTrials.gov registrations naming Ipilimumab as an intervention. Registration is not evidence of efficacy or safety — reference crosswalk only.
- Immunotherapy in Combination With Prednisone and Sirolimus for Kidney Transplant Recipients With Unresectable or Metastatic Skin CancerRecruiting · Phase 1 · Phase 2 · Interventional · 16 enrolled · National Cancer Institute (NCI)NCT05896839updated 2026-06-12
- Testing Nivolumab and Ipilimumab Immunotherapy With or Without the Targeted Drug Cabozantinib in Recurrent, Metastatic, or Incurable Nasopharyngeal CancerRecruiting · Phase 2 · Interventional · 50 enrolled · National Cancer Institute (NCI)NCT05904080updated 2026-06-12
- Testing Nivolumab With or Without Ipilimumab in Deficient Mismatch Repair System (dMMR) Recurrent Endometrial CarcinomaRecruiting · Phase 2 · Interventional · 81 enrolled · National Cancer Institute (NCI)NCT05112601updated 2026-06-12
- Neoadjuvant Docetaxel, Cisplatin, and Dual Immunotherapy for Sinonasal CarcinomaNot yet recruiting · Phase 2 · Interventional · 23 enrolled · Sun Yat-sen UniversityNCT07645846updated 2026-06-12
- Nivolumab and Ipilimumab and Radiation Therapy in MSS and MSI High Colorectal and Pancreatic CancerActive not recruiting · Phase 2 · Interventional · 84 enrolled · Massachusetts General HospitalNCT03104439updated 2026-06-12
- CIML NK Cell in Head & Neck CancerCompleted · Phase 1 · Interventional · 11 enrolled · Dana-Farber Cancer InstituteNCT04290546updated 2026-06-11
- Testing an Immunotherapy Anti-cancer Drug, Nivolumab, for Advanced Cancers in Patients With Autoimmune Disorders, AIM-NIVORecruiting · Phase 1 · Interventional · 300 enrolled · National Cancer Institute (NCI)NCT03816345updated 2026-06-11
- A Study of APX005M in Combination With Nivolumab and Ipilimumab in Treatment Naïve Patients With Advanced Melanoma or Renal Cell Carcinoma (RCC)Completed · Phase 1 · Interventional · 26 enrolled · Yale UniversityNCT04495257updated 2026-06-11
- Testing the Effectiveness of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) With One Anti-cancer Targeted Drug (Cabozantinib) for Rare Genitourinary TumorsRecruiting · Phase 2 · Interventional · 314 enrolled · National Cancer Institute (NCI)NCT03866382updated 2026-06-11
- Adding Biotherapy or Placebo to Standard Treatment for Advanced Kidney CancerRecruiting · Phase 3 · Interventional · 718 enrolled · SWOG Cancer Research NetworkNCT07383441updated 2026-06-11
Frequently asked questions
- How does Ipilimumab work?
- CTLA-4 is a negative regulator of T-cell activity. Ipilimumab is a monoclonal antibody that binds to CTLA-4 and blocks the interaction of CTLA-4 with its ligands, CD80/CD86.
- What is Ipilimumab used for?
- According to FDA labeling, Ipilimumab carries indications including: YERVOY is a human cytotoxic T-lymphocyte antigen 4 (CTLA-4)-blocking antibody indicated for: Melanoma • Treatment of unresectable or metastatic melanoma in adults and pediatric patients 12 years and older as a single agent or in combination with nivolumab. (1.1) • Adjuvant treatment of adult patients with cutaneous melanoma with pathologic involvement of regional lymph nodes of more than 1 mm who have undergone complete resection, including total lymphadenectomy.. This is a reference summary of labeled uses, not medical advice or a treatment recommendation.
- What class of drug is Ipilimumab?
- Ipilimumab is classified as Other monoclonal antibodies and antibody drug conjugates, CTLA-4-directed Blocking Antibody, CTLA-4-directed Antibody Interactions, Increased T Lymphocyte Activation.
- What are the brand names for Ipilimumab?
- Ipilimumab is marketed under brand names including Yervoy.
- What are the contraindications for Ipilimumab?
- Ipilimumab labeling lists contraindications including: None. • None.. Always consult the full prescribing information and a clinician.
ipilimumab is illustrative MVP content compiled from public sources. pharmacopeia is for educational and informational use only and is not a substitute for professional medical advice.