Cimzia

Quick links to important sections

Cimzia

Selected form

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Cimzia

Cimzia (active ingredient: Certolizumab Pegol) is a specialized, prescription-only (Rx) biologic drug used to manage chronic inflammation stemming from an overactive immune system. The drug is classified as a Tumor Necrosis Factor (TNF) Inhibitor, which is a type of immunosuppressant designed to modify the underlying disease process.

Property Description
Active ingredient Certolizumab Pegol
Form Solution for subcutaneous injection
Pharmacological class TNF Inhibitor / DMARD
Legal Status Prescription-only (Rx)
Origin Recombinant, Humanized Biologic

The Identity and Unique Structure of Certolizumab Pegol

Cimzia's primary distinguishing feature is its structure: it is a PEGylated Fab' fragment of a humanized monoclonal antibody. This means the active part, Certolizumab, is chemically joined to Polyethylene Glycol (PEG), a process known as PEGylation.

This PEGylation process is clinically recognized for enhancing the drug's pharmacokinetic properties, such as increasing its time in the body. The unique architecture of Certolizumab Pegol, which lacks the Fc region found in other full-length TNF inhibitors, differentiates its mechanism within the anti-TNF class. Cimzia is supplied as a sterile solution for subcutaneous (SC) injection.


Classification and General Purpose

The medication is classified as a TNF-alpha inhibitor, meaning it works by binding to and neutralizing the key inflammatory protein Tumor Necrosis Factor alpha (TNF-alpha). This mechanism is supported by its classification as a Disease-Modifying Antirheumatic Drug (DMARD).

The general purpose of this therapy is to provide long-term control over chronic inflammation. By blocking TNF-alpha, Cimzia interrupts the central inflammatory cascade, which is key to reducing disease activity associated with uncontrolled immune responses and mitigating related symptoms like pain and swelling.

Regulatory References

  1. Certolizumab - LiverTox - NIH
  2. Cimzia | European Medicines Agency

What side effects are possible with Cimzia?

Possible side effects and safety information

The safety profile of Certolizumab Pegol (Cimzia) is structured by regulatory agencies, such as the FDA and EMA, around key domains that categorize and contextualize the risks associated with its use as a TNF inhibitor.


Frequency-Classified Adverse Reactions

Adverse events are formally classified by frequency. Common reactions, occurring in up to 1 out of 10 people (ge 1/100 to <1/10), typically affect the Infections and Infestations system-organ class. These common reactions include upper respiratory tract infection (URTI), urinary tract infection (UTI), viral infections (e.g., Herpes), rash, and headache.


Serious Adverse Reactions and Safety Constraints

Official labeling emphasizes the potential for serious and sometimes fatal infections, including active tuberculosis, sepsis, and invasive fungal infections, necessitating pre-screening before and during treatment. The risk of malignancies, such as lymphoma, is also documented.

Other serious reactions include new onset or worsening heart failure, Hepatitis B Virus (HBV) reactivation, and new onset or exacerbation of demyelinating diseases within the Nervous System Disorders class. The medicine is formally contraindicated in patients with active severe infections or moderate to severe heart failure.


Population- and Duration-Specific Notes

Official documents include safety statements for specific groups: Older adults (aged 65 and older) may have a greater risk of infection, and there is an increased risk of malignancy in the pediatric population treated with TNF blockers. Monitoring for infection signs is required during and after treatment due to the drug's persistence in the body. Furthermore, the use of live vaccines and concomitant use with other biologic DMARDs is not recommended.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Certolizumab Pegol (Cimzia) is based on observations from clinical trials and explicitly mandated management procedures.


Documented Overdose Findings

Category Regulatory Statement
Toxicity Observations No dose-limiting toxicities were observed in clinical trials at the maximum dose studied.
Maximum Dose Studied The highest single dose administered subcutaneously to patients in studies was 800 mg.
Antidote Status There is no specific antidote known for Certolizumab Pegol overdose.

Emergency Actions Mandated by Regulatory Authorities

In the event of a known or suspected overdosage, urgent medical attention should be sought to ensure immediate patient evaluation. The official guidelines emphasize that medical professionals must:

  • Monitor the patient closely for any signs or symptoms of adverse reactions or effects.
  • Immediately institute appropriate symptomatic and supportive treatment to manage any resulting clinical manifestations.

No specific differential overdose considerations for populations, such as pediatric, geriatric, or those with hepatic or renal impairment, are documented in the dedicated Overdosage section of the official label. The management approach remains focused on close observation and support.

Therapeutic Uses of Cimzia

What Cimzia treats: main uses and benefits

This medication is used for managing a variety of chronic inflammatory conditions.

Cimzia is commonly used for active forms of Rheumatoid Arthritis and Psoriatic Arthritis in adults, and is relevant for the systemic symptoms of Ankylosing Spondylitis and non-radiographic Axial Spondyloarthritis. It also plays a role in managing moderately to severely active Crohn's Disease, moderate-to-severe Plaque Psoriasis, and Polyarticular Juvenile Idiopathic Arthritis (pJIA) in pediatric patients.

The therapy is primarily applied in contexts where patients experience symptoms that create noticeable functional strain, such as persistent joint pain, swelling, and debilitating stiffness. It is often used during phases when the symptoms become more disruptive, particularly when previous conventional systemic treatments have led to an inadequate response. A central benefit is that it supports functional stability by addressing factors that contribute to progressive structural change in the joints and spine.


Quick Fact: Relief for Inflammation

The treatment supports the goal of managing symptom severity and easing the physical manifestations associated with inflammatory processes, including gastrointestinal cramps, chronic fatigue, and severe skin lesions. It contributes to improved day-to-day comfort by alleviating the overall symptom burden.

Eligibility and Restrictions for Use

Cimzia (certolizumab pegol) eligibility is determined strictly by regulatory-defined contraindications and population-specific restrictions.

Populations for Whom Use is Prohibited (Contraindicated)

Classification Restriction
Hypersensitivity Patients with a prior allergic reaction (e.g., anaphylaxis, angioedema) to certolizumab pegol or its components.
Infection Status Patients with active severe infections, including active tuberculosis (TB) or sepsis.
Cardiac Health Patients with moderate to severe heart failure (NYHA Class III/IV).

Age and Special Population Eligibility Rules

  • Adults (18+): Approved for use in all labeled indications, such as rheumatoid arthritis, Crohn's disease, and psoriatic arthritis.
  • Pediatric Patients: Approved for use in patients 2 years of age and older for active polyarticular juvenile idiopathic arthritis (pJIA); use in children under 2 years for general indications is not established.
  • Pregnancy and Lactation: Regulatory labeling includes data demonstrating negligible to low transfer of the medicine across the placenta and minimal transfer into breast milk.

Key Eligibility Restrictions

Treatment must not be initiated during an active infection. Patients must be tested for latent TB and Hepatitis B Virus (HBV) infection before starting Cimzia. Use is restricted in patients with mild heart failure (NYHA Class I/II) and requires careful monitoring in patients who are chronic HBV carriers or those ge 65 years of age.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Cimzia (certolizumab pegol) can interact with other products, primarily by increasing the risk of serious infections due to its immune system effects. These potential interactions are strictly based on governmental regulatory warnings and are classified as combinations to avoid or use with caution.


Documented Interaction Structure

Category or Specific Product Interaction Classification Rationale (Official Basis)
Other Biological DMARDs/TNF Blockers (e.g., Abatacept, Anakinra, Natalizumab, Rituximab, other TNF blockers) Not Recommended Concomitant use increases the risk of serious infection, likely due to compounded immunosuppression.
Live/Live Attenuated Vaccines Avoid Use The drug's immunosuppressive nature may impair the immune response to vaccination and increase the risk of vaccine-related infection.
Immunosuppressants (e.g., Methotrexate, Corticosteroids) Increased Risk of Infection Although often used concomitantly in clinical practice, regulatory documents note that most patients who developed serious infections were taking these agents alongside Cimzia.

No interaction is expected with medications that are metabolized by cytochrome P450 enzymes. The overall interaction profile is defined by an increased risk of immune suppression when combined with other biologics or live vaccines, a critical consideration for patient safety.

Mechanism of Action

How Cimzia Works: Mechanism of Action

Certolizumab Pegol acts by binding directly to Tumor Necrosis Factor alpha ( TNF-alpha), a central pro-inflammatory signal. This interaction neutralizes TNF-alpha both in circulation ( sTNF-alpha) and on the surface of immune cells ( tmTNF-alpha), preventing it from engaging its receptors ( p55 and p75) on target cells and halting the initial inflammatory signal. This focused binding results in the suppression of TNF-alpha-mediated signal transduction.

By blocking the central TNF-alpha signal, the drug effectively stops the inflammatory cascade. This mechanism significantly reduces the downstream production of other major pro-inflammatory mediators, such as IL-1 and IL-6, by activated immune cells. The resulting physiological effect is the reduction in systemic TNF-alpha-driven inflammatory activity, which modulates the activity of tissue-degrading enzymes and preserves structural integrity.

Certolizumab Pegol is a unique Fab' fragment that lacks the Fc region. This structural feature prevents the molecule from mediating mechanisms like ADCC (Antibody-Dependent Cell-Mediated Cytotoxicity) or apoptosis (programmed cell death) in immune cells. The mechanism relies solely on the neutralization of the TNF-alpha mediator and the resulting pathway modulation.

Dosage and Administration Information

How to use Cimzia

The official use of Certolizumab Pegol is strictly limited to subcutaneous (SC) injection. The administration follows a structured, two-phase protocol that begins with an Induction Phase and continues with Maintenance Therapy.

The initial dosage across most adult indications is a loading dose of 400 mg administered at Weeks 0, 2, and 4. This 400 mg amount is defined as requiring two separate 200 mg injections at distinct sites, such as the thigh or abdomen, and sites must be rotated.

Following the loading regimen, the long-term Maintenance Dose is typically 200 mg every two weeks or 400 mg every four weeks, depending on the specific condition. For pediatric patients (aged 2 years and older) with polyarticular juvenile idiopathic arthritis, the dosing follows a weight-based tiered schedule.

Regarding administration logistics, the medication must be warmed to room temperature for about 30 minutes before injection. Patients trained by a professional may perform self-injection using the prefilled syringe. If a dose is missed, it should be injected immediately upon remembering, with the next dose then returning to the original schedule. The drug is not to be used concomitantly with other biological disease-modifying anti-rheumatic drugs.

Dosing Pattern Key Procedure
Route Subcutaneous Injection only
400 mg Protocol Requires two separate 200 mg injections at distinct sites
Frequency Intermittent (bi-weekly or monthly) after Induction Phase
Special Constraint Not used with other TNF blockers

Recent Clinical Evidence

Research Evidence / Overview of Studies for Cimzia (Certolizumab Pegol)

This overview describes the types of clinical research and the areas of study that have been reported for Certolizumab Pegol (Cimzia), drawing only from regulatory and peer-reviewed scientific sources. The findings reflect the specific conditions under which these studies were conducted and provide context, but not individual predictions.


Evidence for Use in Inflammatory Arthritis (RA and PsA)

Research exploring how symptoms change over time in participants with Rheumatoid Arthritis (RA) has been conducted using large, short-term randomized controlled trials (RCTs). These studies typically involved adults with moderate to severe disease, often compared Certolizumab Pegol (used with Methotrexate) against placebo (used with Methotrexate). The trials monitored outcomes related to physical discomfort, functional imbalance, and daily functioning over periods typically spanning 12 to 24 weeks.

Studies observed patterns where the proportion of participants meeting standardized disease activity metrics (such as ACR20/50/70) was different in the Certolizumab Pegol groups compared to the placebo groups in short-term research.

Sub-section: Focus on Measures of Structural Damage

Certolizumab Pegol was also evaluated in studies where changes in joint and bone structure were measured, outcomes reflecting the daily functioning of participants with RA. Analyses of one-year data described patterns where the mean change in the radiographic progression scores was lower in the Certolizumab Pegol groups compared to the placebo groups.

For Psoriatic Arthritis (PsA), short-term placebo-controlled RCTs and long-term open-label extensions were applied in studies examining patient-reported experiences related to both joint symptoms and skin lesions. Findings describe patterns observed in the studies related to both the joint and skin manifestations in the observed populations.


Evidence for Use in Axial Spondyloarthritis (AS and nr-axSpA)

Certolizumab Pegol was studied for Ankylosing Spondylitis (AS) through short-term RCTs. Research examined outcomes related to spinal symptoms and function. Long-term observational research spanning up to three years recorded the sustained observation of symptom and function scores of the participants.

For non-radiographic Axial Spondyloarthritis (nr-axSpA), dedicated placebo-controlled RCTs were conducted. Research explored short-term symptom changes and objective outcomes linked to inflammatory states. Findings describe patterns observed in the studies related to changes in symptom activity and objective inflammatory markers over the course of the study period.


Research Gaps and Areas of Uncertainty

Evidence highlights what is known—and what is still uncertain—about Certolizumab Pegol. Comparative evidence is lacking for direct head-to-head trials against all other specific biologic agents used for conditions like RA and Psoriasis. While long-term open-label extension studies provide extensive follow-up data, long-term effects are not fully established through long-term placebo-controlled research, as this design is not typically used beyond the short-term phase.

Frequently Asked Questions (FAQ)

Common questions about Cimzia (FAQ)


Q: What conditions, besides rheumatoid arthritis, is Cimzia used to treat?

According to official product information, Cimzia is approved for multiple chronic inflammatory conditions beyond rheumatoid arthritis. These include moderate-to-severe Crohn's disease, active psoriatic arthritis, active ankylosing spondylitis, active non-radiographic axial spondyloarthritis, and moderate-to-severe plaque psoriasis.


Q: How quickly does Cimzia typically start working for chronic inflammatory conditions?

Clinical trial data suggests that some patients may notice initial symptom improvements as early as 1 to 2 weeks after starting treatment, especially for conditions like psoriatic arthritis and ankylosing spondylitis. However, reaching the full benefit may take longer, with clinical trials showing continued improvement for several months, or up to a year, depending on the condition.


Q: Why is Cimzia pegylated, and what benefit does that offer?

Cimzia is unique because the active ingredient is chemically joined to Polyethylene Glycol (it is PEGylated). This modification is designed to prolong the drug’s half-life (the time it stays in the body), which supports its intermittent, less frequent dosing schedule.


Q: Can Cimzia cause weight gain or changes in metabolism?

Weight gain or loss were not reported as general side effects in the initial clinical trials for Cimzia. However, official safety information lists new or worsening heart failure as a potential serious adverse reaction. Patients should be monitored for any unexplained weight changes.


Q: Are there any reported cases of hair loss linked to Cimzia use?

Hair loss (alopecia) has been mentioned in pharmacovigilance reports related to TNF-alpha blockers, including certolizumab pegol. However, hair loss is not listed as a common side effect in the official product labeling.


Q: Does Cimzia affect fertility in men or women?

Official data indicates that there are no human studies available to determine if certolizumab pegol affects fertility in men or women. Studies in animals, however, did not find any effect on fertility.


Q: What should I do if I forget or miss my scheduled Cimzia injection?

The official product information describes a protocol where a missed dose is taken immediately upon remembering. After that, the next scheduled injection should then be returned to the original, planned date for the treatment schedule.


Q: Is a Cimzia injection typically painful, and what can be done to minimize discomfort?

Injection site reactions, such as pain, redness, or swelling, are documented as potential adverse events. Product information suggests allowing the prefilled syringe to warm to room temperature for about 30 minutes before injection, and rotating the injection site is generally recommended to minimize local reactions.


Q: What is the likelihood of developing an allergic reaction to Cimzia?

Serious hypersensitivity reactions (including anaphylaxis) are documented as potential risks. The medication is contraindicated for use in patients with a known prior allergic reaction to certolizumab pegol or its components. The exact frequency of these reactions in the general population is not typically provided as a simple number.


Q: Does Cimzia have any known effects on mood or mental health?

Official safety data indicates that effects on mood and mental health are reported as uncommon side effects (occurring in less than 1% of patients). These reports have included anxiety, mood disorders (and associated symptoms), and restlessness.


Q: Is it normal to feel a mild burning sensation at the injection site after using Cimzia?

Yes, feeling a mild burning, pain, or stinging sensation at the injection site falls into the documented adverse reaction profile for Cimzia. These are considered local injection site reactions that can occur with subcutaneous injections.


Q: Is it okay to drink alcohol while I am being treated with Cimzia?

Official regulatory documents do not list a direct drug-alcohol interaction for Cimzia. However, since the medication and alcohol may cause similar side effects, such as headaches or fatigue, there is a possibility that these shared side effects may be more likely to occur when used concomitantly.


Q: What research supports the use of Cimzia for treating axial spondyloarthritis?

The use of Cimzia for axial spondyloarthritis, including ankylosing spondylitis (AS) and non-radiographic axial spondyloarthritis (nr-axSpA), is supported by large Phase 3 clinical trials. These studies, which included trials like RAPID-axSpA and C-axSpAnd, showed evidence of efficacy in symptoms and functional outcomes for patients with these conditions.


Q: Does Cimzia treat the symptoms, or does it slow down the progression of the disease?

Clinical trials indicate that Cimzia helps to improve the signs and symptoms of the disease, providing relief from inflammation and discomfort. Furthermore, clinical studies utilizing Cimzia in combination with methotrexate observed an inhibition of the progression of radiographic damage, a measure of structural change to the joints.

--́n

Q: What is the typical time frame for reaching maximum benefit from Cimzia?

While some patients may notice initial improvements quickly, reaching the maximum clinical benefit is a gradual process. Clinical trial observations suggest patients may continue to see improvements over time, with continued benefit reported between 4 months and up to 1 year, depending on the condition.


Q: What is the difference between Cimzia and other TNF blockers like Humira or Enbrel?

Cimzia has a unique structure: it is a PEGylated Fab' fragment which means it is an antibody fragment chemically attached to polyethylene glycol. This structure lacks the Fc portion of the antibody, differentiating its mechanism by preventing certain immune cell interactions like inducing programmed cell death (apoptosis).


Q: How effective is Cimzia compared to methotrexate alone for rheumatoid arthritis?

Clinical trials demonstrated that using Cimzia in combination with methotrexate resulted in significant clinical improvement compared to using methotrexate combined with an inactive placebo. This evidence supports the added therapeutic benefit of Cimzia when it is used alongside methotrexate.


Q: Can patients who have previously failed other biologics still try Cimzia?

Clinical trial populations for Cimzia included patients who had previously used other TNF inhibitors. While data shows that patients with prior TNF inhibitor exposure may have had higher rates of treatment discontinuation, the drug is approved for use in the general population regardless of prior bDMARD failure.


Q: Is it true that Cimzia has a lower transfer across the placenta compared to other biologics?

Official data on pregnancy indicates that studies found little to no transfer of certolizumab pegol across the placenta to the fetus. This low transfer rate is a point of distinction when compared to some other medications in the anti-TNF class.


Q: Is it possible to become resistant to the effects of Cimzia over time?

While long-term pooled clinical trial data does not establish this as a certainty, one of the reasons for discontinuing Cimzia treatment in some patients was inadequate levels of efficacy. This suggests that some individuals may experience a diminished response over the course of treatment.

How should Cimzia be stored and disposed of?

Official Storage and Disposal Requirements

Cimzia (certolizumab pegol) must be stored under specific environmental and temperature conditions to maintain its quality as a biologic product.

Storage Conditions

Condition Requirement
Primary Temperature Store in the refrigerator between 2 C and 8 C (36 F and 46 F).
Prohibited Conditions Do not freeze the medicine, and do not shake the syringe.
Protection Keep the syringe in its original carton to protect it from light.
Room Temperature Stability If removed, the syringe can be stored at up to 25 C (77 F) for a single period of up to 7 days, but it must not be placed back in the refrigerator.

Disposal and Child Safety

Used syringes and needles must be disposed of immediately in an FDA-cleared sharps disposal container. They must not be thrown away in household trash or recycled. The medicine and all injection supplies must be kept out of the reach of children at all times.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

Available in countries:

Equivalent of Cimzia found in:

A-Z Index: