Nivolumab Side Effects and Adverse Events
Nivolumab causes immune-related adverse events (irAEs) in 74-85% of patients, with severe (grade 3-4) toxicity occurring in 12-20% when used as monotherapy, and the most common side effects include fatigue, rash, diarrhea, and endocrine dysfunction. 1
Frequency and Severity of Adverse Events
Monotherapy Profile
When nivolumab is used alone, treatment-related adverse events occur in approximately 74-85% of patients, with 12-20% experiencing grade 3-4 toxicity across various cancer types including melanoma, non-small cell lung cancer, and renal cell carcinoma. 1 The incidence varies by indication, with metastatic melanoma showing 74-85% any-grade events and 12-20% severe events, while NSCLC demonstrates 58-69% any-grade and 7-10% severe toxicity. 1
Combination Therapy Risks
Combining nivolumab with ipilimumab dramatically increases toxicity, with 95% of patients experiencing treatment-related adverse events and 55-59% developing grade 3-4 toxicity - more than double the rate seen with nivolumab monotherapy. 2, 1 In the CheckMate 067 trial, 39% of patients receiving combination therapy discontinued treatment due to adverse events, compared to only 12% on nivolumab monotherapy. 2
Most Common Adverse Reactions
General and Constitutional Symptoms
- Fatigue/asthenia: Occurs in 47-62% of patients (3.5-7% grade 3-4) 1, 3
- Pyrexia (fever): Affects 16-40% of patients, more common with combination therapy 1
- Decreased appetite: Reported in 22-51% of patients 1, 3
Gastrointestinal Toxicity
- Diarrhea: Occurs in 29-54% of patients (2.9-11% grade 3-4) 1, 3
- Nausea: Affects 22-65% of patients 1, 3
- Colitis: A serious irAE occurring in approximately 10% of combination therapy patients, leading to treatment discontinuation 3
- Stomatitis: Seen in 44% of patients receiving nivolumab with chemotherapy 3
Dermatologic Reactions
- Rash: Develops in 16-53% of patients (0.6-6% grade 3-4), significantly more common with combination therapy 1, 3
- Pruritus: Affects 11-23% of patients 1, 3
- Vitiligo: Occurs in 9-11% of patients, particularly in melanoma 3, 4
Endocrine Dysfunction
- Hypothyroidism: Develops in 7-19% of patients, more frequent with PD-1 inhibitors than PD-L1 inhibitors (6.7% vs 4.2%) 2, 1, 3, 4
- Hyperthyroidism: Occurs in 6-14% of patients, often preceding hypothyroidism 1, 3
- Adrenal insufficiency: A serious but less common endocrine toxicity 3
Hepatotoxicity
- Elevated transaminases (ALT/AST): Occurs in 20-55% of patients (2.1-16% grade 3-4), with combination therapy showing substantially higher rates 1, 3
- Hepatitis: Develops in 1-5% of patients as an immune-mediated adverse event 1
Pulmonary Toxicity
- Pneumonitis: Occurs in approximately 4% of patients on PD-1 inhibitors versus 2% on PD-L1 inhibitors, with 1.1% being high-grade 2
- Cough: Reported in 13-28% of patients 1, 3
Musculoskeletal Effects
- Musculoskeletal pain: Affects 11-42% of patients 1, 3
- Myositis/myopathy: Rare but serious, can present with elevated creatine kinase without muscle pain 4
Renal Toxicity
- Increased creatinine: Occurs in 15-41% of patients (0.7-2.7% grade 3-4) 3
- Renal insufficiency: Can develop as an immune-mediated adverse event 4
Timing of Adverse Events
irAEs typically occur within weeks to 3 months after initiating treatment, but can develop as late as 1 year after discontinuation. 1 The median time to onset varies by organ system:
- Skin toxicity: Median 5.6-7.4 weeks 1
- Gastrointestinal toxicity: Median 12.1-26.3 weeks 1
- Hepatic toxicity: Median 3.7-7.4 weeks 1
- Endocrine toxicity: Median 28.6 weeks 1
With combination therapy, grade 3-4 toxicities may develop earlier and over a more prolonged period compared to monotherapy. 1
Serious and Fatal Adverse Events
Serious adverse reactions occur in 21-74% of patients, with higher rates in combination therapy. 2, 5 Fatal irAEs occur in approximately 0.36% of patients receiving anti-PD-1 therapy. 2
The most frequent serious adverse reactions include:
Fatal adverse reactions reported with nivolumab include pneumonitis, myocarditis, hepatitis, neurological disorders (including Guillain-Barré syndrome), and sepsis. 3, 6
Laboratory Abnormalities
Hematologic
- Lymphopenia: 39-67% (4-23% grade 3-4) 3
- Anemia: 27-81% (0.8-21% grade 3-4) 3
- Neutropenia: 13-61% (1.3-18% grade 3-4) 3
Chemistry
- Hyponatremia: 19-52% (1.7-15% grade 3-4) 3
- Hyperglycemia: 34-53% (0-5.3% grade 3-4) 3
- Increased lipase: 32-43% (12-22% grade 3-4) 3
Special Populations and Considerations
Patients with autoimmune disease are at increased risk for worsening of their condition while on immune checkpoint blockade. 1
A critical warning exists for complications of allogeneic hematopoietic stem cell transplantation after nivolumab, including severe or hyperacute graft-versus-host disease and transplant-related mortality. 5
Management Requirements
Approximately 25-72% of patients require systemic corticosteroids for management of irAEs, with 25% requiring additional immunosuppression with infliximab or mycophenolate for steroid-refractory toxicity. 7 Emergency department visits occur in 50% of patients and hospitalizations in 36% related to immune-related adverse events. 7