Immunotherapy in Barcelona: Advanced Cancer Treatment for International Patients

For many patients and families, searching for immunotherapy in Barcelona begins with an important question: could this advanced treatment be an option for my type of cancer?

Immunotherapy has changed the way some cancers are treated by helping the immune system recognise and attack cancer cells. However, it is not suitable for every patient or every tumour. This article explains what immunotherapy is, how it differs from other cancer treatments, why specialised evaluation is essential, and what international patients should prepare before requesting a medical opinion in Barcelona.

What is immunotherapy?

Иммунотерапия is a type of cancer treatment that uses the body’s immune system to help fight cancer. Normally, the immune system can identify and destroy abnormal cells, but cancer cells may develop mechanisms to hide from immune responses.

Cancer immunotherapy aims to help the immune system recognise these cells more effectively or strengthen the body’s ability to attack them.

In simple terms, immunotherapy does not act in the same way as chemotherapy. Instead of directly attacking rapidly dividing cells, it works by activating or guiding immune responses against cancer cells.

However, immunotherapy is not a universal treatment. Its use depends on several factors, including:

• the type of cancer;
• the stage of the disease;
• previous treatments;
• the patient’s general health;
• tumour biomarkers;
• the expected benefits and risks;
• specialist evaluation by an oncology team.

This is why patients interested in immunotherapy in Barcelona should first request a complete medical evaluation before assuming that this treatment is appropriate for their case.

How is immunotherapy different from chemotherapy?

Cancer treatment has become increasingly personalised. Today, specialists may combine several approaches depending on the diagnosis and the patient’s individual situation.

Treatment approach	How it works	When it may be considered
Chemotherapy	Uses drugs to attack rapidly dividing cells	In many cancer types, depending on the treatment protocol
Иммунотерапия	Helps the immune system recognise and attack cancer cells	In selected cancers with specific characteristics
Targeted therapy	Acts on specific molecular alterations involved in cancer growth	When the tumour has identifiable biomarkers or mutations
CAR-T-терапия	Modifies immune cells to recognise and attack specific cancer cells	In selected blood cancers, after specialist evaluation

CAR-T therapy is one of the most advanced forms of personalised immunotherapy used in selected blood cancers. You can read more in our dedicated guide: CAR-T Therapy in Barcelona: What International Patients Should Know.

Types of cancer where immunotherapy may be considered

Immunotherapy may be part of the treatment strategy for selected patients with different types of cancer. Its use depends on the tumour type, biomarkers, previous treatments and the patient’s clinical condition.

Cancer area	How immunotherapy may be relevant
Lung cancer	May be considered in selected cases depending on biomarkers, tumour characteristics and disease stage.
Melanoma	One of the areas where immunotherapy has significantly changed treatment strategies.
Kidney and bladder cancer	May be part of advanced treatment pathways in selected patients.
Head and neck cancers	Immunotherapy may be considered in certain advanced or recurrent cases.
Some gastrointestinal cancers	Suitability depends on tumour biology, biomarkers and previous treatment history.
Blood cancers	Some immune-based therapies, including CAR-T therapy, may be considered in selected cases.
Other tumours	Evaluation depends on diagnosis, molecular profile and specialist recommendation.

It is important to avoid general assumptions. Two patients with the same type of cancer may receive different recommendations depending on their tumour profile, medical history and response to previous treatments.

Why biomarkers are important in immunotherapy

One of the most important concepts in modern oncology is that cancer treatment is no longer based only on the tumour’s location. Specialists increasingly look at the biological characteristics of the tumour to understand which treatments may be more appropriate.

These characteristics are often called biomarkers.

Biomarkers can help doctors understand whether immunotherapy, targeted therapy or another treatment approach may be relevant. Depending on the type of cancer, the medical team may request specific tests such as molecular analysis, genetic testing or other tumour markers.

For international patients, this is especially important. Before requesting immunotherapy abroad, it is useful to check whether previous pathology, molecular or biomarker results are available. If not, the specialist may recommend additional tests before making a treatment recommendation.

This is where personalised cancer treatment becomes essential. The goal is not simply to use the newest therapy, but to identify the most appropriate treatment strategy for each individual case.

Immunotherapy in Barcelona: why the city is relevant

Barcelona has become one of Europe’s most recognised medical destinations for advanced cancer care. The city combines specialised hospitals, experienced oncology teams, advanced diagnostic resources, clinical research, surgical expertise and international patient services.

For patients searching for immunotherapy in Barcelona, this ecosystem matters because immunotherapy is not usually decided by one specialist alone. It often requires coordination between different areas of care.

A patient may need input from:

• medical oncology;
• pathology;
• radiology;
• molecular diagnostics;
• surgery;
• radiation oncology;
• hematology;
• nursing teams;
• supportive care specialists;
• international patient coordinators.

Этот междисциплинарный подход helps ensure that immunotherapy is considered within the full context of the patient’s disease and treatment history.

Barcelona also offers practical advantages for international patients, including good international connectivity, multilingual medical environments and hospitals used to receiving patients from abroad.

Multidisciplinary cancer care: why it matters

Immunotherapy can be highly valuable for selected patients, but it is not always the first or only option. In many cases, the best treatment plan may involve a combination of therapies.

A multidisciplinary team can help answer key questions:

Is immunotherapy appropriate for this cancer type?

The oncology team needs to evaluate the diagnosis, stage, tumour biology and previous treatments before deciding whether immunotherapy may be suitable.

Should immunotherapy be combined with another treatment?

In some cases, cancer treatment may involve surgery, chemotherapy, radiotherapy, targeted therapy or supportive treatments. The right sequence and combination must be carefully planned.

Are additional tests needed?

If biomarker or molecular results are missing, the medical team may need further testing before making a recommendation.

Is the patient medically fit for treatment?

Immunotherapy may not be suitable for all patients. General health, immune conditions, infections, organ function and previous complications may influence the recommendation.

What follow-up will be needed?

Cancer treatment does not end with the first decision. Patients need monitoring, response assessment and management of possible side effects.

For international patients, this type of coordination is especially important because the treatment pathway may involve both the hospital in Barcelona and the medical team in the patient’s home country.

BIH partner hospitals and advanced cancer care

Barcelona International Hospitals brings together leading hospitals in Barcelona with complementary areas of expertise. Within the BIH network, several partner hospitals contribute to advanced cancer care, diagnosis, surgery, oncology pathways, pediatric care, urology, rehabilitation and complex medical support.

Depending on each patient’s diagnosis and needs, BIH can help identify the most appropriate hospital pathway. Relevant hospitals within the BIH network include:

BIH partner hospital	How it may be relevant in complex cancer care
Медицинский центр Текнон	Advanced private hospital care, diagnosis, surgery, oncology pathways and multidisciplinary medical services.
Больница Квиронсалуд Барселона	Private hospital care, advanced diagnosis, surgery, oncology-related pathways and international patient support.
барнаклиник+	Highly specialised adult medical and surgical care linked to Hospital Clínic Barcelona.
Больница Сан-Жоан-де-Деу в Барселоне	Pediatric oncology, complex childhood diseases, rare diseases and international family care.
Университетская клиника Dexeus	Multidisciplinary hospital care, diagnosis, surgery, women’s health and pediatric/neonatal expertise.
Фонд Пуигверта	Urology, nephrology, andrology and complex renal or urological diseases, including uro-oncology pathways.
Институт Гуттманна	Neurorehabilitation and complex functional recovery after neurological disease or injury.

Not all hospitals provide the same treatments or services. The value of the BIH network lies in helping patients find the right specialist pathway according to their medical case.

Immunotherapy for international patients: what to prepare before evaluation

Before travelling for immunotherapy in Barcelona, patients should prepare a complete medical file. This allows specialists to review the case properly and decide whether immunotherapy, another treatment option, a second opinion or an in-person visit may be appropriate.

Document or information	Why it matters
Diagnosis report	Helps specialists understand the type and stage of cancer.
Pathology report	Confirms tumour characteristics and supports treatment planning.
Biomarker or molecular test results	May help assess whether immunotherapy or targeted therapy is relevant.
Imaging studies	Shows disease extension, evolution and response to previous treatments.
Previous treatment history	Helps evaluate what options have already been used and what may remain available.
Surgery reports, if relevant	Provides information about previous procedures and tumour findings.
Current medications	Important for safety, interactions and treatment planning.
Recent discharge reports	Gives updated information about admissions, complications or urgent care.
Clinical summary in English, if possible	Makes the first international evaluation easier and faster.

A complete medical file helps avoid delays and allows the medical team to provide a more accurate recommendation.

When to request a second opinion about immunotherapy

A second medical opinion can be especially useful when a patient wants to understand whether immunotherapy may be appropriate for their case.

International patients may request a second opinion when:

• the cancer has progressed after previous treatment;
• different doctors have given different recommendations;
• the patient wants to know whether immunotherapy is an option;
• biomarker or molecular testing needs to be reviewed;
• advanced therapies are being considered;
• the patient wants to explore treatment options in Spain or Europe;
• the case requires multidisciplinary review.

A second opinion should not simply confirm the patient’s expectations. It should clarify what is realistic, what evidence supports each option and what the next medical steps should be.

For a broader overview of oncology pathways in the city, you can also read: Cancer Treatment in Barcelona: Advanced Care for International Patients.

FAQ: Immunotherapy in Barcelona

Conclusion: immunotherapy requires precision, experience and the right medical pathway

Immunotherapy has become one of the most important advances in modern cancer treatment, but it is not a universal solution. Its value depends on careful patient selection, biomarker testing, multidisciplinary review and specialised oncology expertise.

For international patients, immunotherapy in Barcelona offers access to a strong medical ecosystem with advanced hospitals, experienced specialists, diagnostic resources and international patient support.

Barcelona International Hospitals helps patients identify the most appropriate hospital pathway according to their diagnosis, medical history and treatment needs.

If you are considering immunotherapy, advanced cancer treatment or a second medical opinion in Barcelona, you can contact Barcelona International Hospitals here:

Свяжитесь с международными больницами Барселоны

This article is for informational purposes only and should not replace professional medical advice. Always consult a qualified specialist regarding your individual case.