Hematologist
CION Cancer Clinics
Checkpoint inhibitors when Hodgkin lymphoma comes back | CION Cancer Clinics
Pembrolizumab and nivolumab are checkpoint inhibitors, immunotherapy drugs that release the immune system to attack Hodgkin lymphoma. Classical Hodgkin lymphoma responds to them often, so they are widely used when the disease comes back after chemotherapy, a transplant or brentuximab. Side effects are usually milder than chemotherapy, but immune attacks on healthy organs need prompt care. This page explains who they suit and what to watch for. At CION Cancer Clinics, our haematology team plans myeloma and lymphoma care with you, discussed at a tumour board and explained in plain words.
BP
Medically reviewed by Dr. Basudev PokhrelConsultant Haematologist · last reviewed September 2026, next review due September 2027
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
- Can pembrolizumab or nivolumab treat Hodgkin lymphoma that has come back?
- When do doctors consider a checkpoint inhibitor?
- How is it different from chemotherapy?
- What does treatment look like week to week?
- What side effects should you know about?
- What do families often misunderstand about immunotherapy?
- Common questions about checkpoint inhibitors in relapsed Hodgkin
The short answer
Can pembrolizumab or nivolumab treat Hodgkin lymphoma that has come back?
Yes. Pembrolizumab and nivolumab are immunotherapy drugs called checkpoint inhibitors, and classical Hodgkin lymphoma is one of the cancers that responds to them most often. They are mainly used when the lymphoma has come back or has not responded to chemotherapy, a stem cell transplant or brentuximab.
How they work
Your immune system has built-in brakes, called checkpoints, that stop it attacking your own body. One of these brakes is a switch called PD-1 on immune cells. Hodgkin lymphoma cells often carry large amounts of the matching signal, PD-L1, which switches immune cells off around them. Checkpoint inhibitors block that switch, so the immune system can recognise and attack the lymphoma.
Why Hodgkin lymphoma responds so often
In classical Hodgkin lymphoma, a genetic change in the abnormal cells makes them produce extra PD-L1. The lymphoma relies heavily on this shield, so removing it tends to have a strong effect. Many people see their glands shrink, and some have long-lasting control.
What they are not
They are not chemotherapy, and they do not work by killing cells directly. Not everyone responds, and responses can wear off. Where a transplant is still possible, these drugs are often a bridge towards it rather than the whole plan.
This page cannot tell you whether you will respond. Your haematologist can explain what your scans and history suggest.Who it is for
When do doctors consider a checkpoint inhibitor?
The timing depends on what treatment you have already had and whether a transplant is possible.
Relapse after a transplant
When the lymphoma returns after an autologous stem cell transplant, using your own cells, a checkpoint inhibitor is a common next option.
Often after
- Brentuximab
- Several lines of chemotherapy
When a transplant is not possible
For older adults or people with heart, lung or kidney problems who cannot have a transplant, it can offer control with fewer effects than intensive chemotherapy.
Worth asking about
- How often scans will be done
- Travel for each drip from your district
A bridge to transplant
Sometimes used, alone or with chemotherapy, to shrink the lymphoma before a transplant arranged with a qualified transplant centre.
If a donor transplant is planned later, the transplant team must know, because it can raise the risk of complications.Who it does not usually suit
People with active autoimmune disease, such as uncontrolled rheumatoid arthritis, lupus or colitis, or who have had an organ transplant, need very careful thought.
Also tell the team about
- Long-term steroid use
- Thyroid disease
Not sure whether this applies to you?
Ask an oncologistSide by side
How is it different from chemotherapy?
Checkpoint inhibitor
Chemotherapy
Releases the immune system to attack the lymphoma
Directly damages dividing cells
Hair loss and very low blood counts are uncommon
Hair loss and low counts are common
Side effects come from immune attack on healthy organs
Side effects come from damage to fast-growing cells
Side effects can start months into treatment or after it
Side effects usually follow each cycle
Often given for a longer period
Usually a fixed number of cycles
The course
What does treatment look like week to week?
-
Baseline tests
Blood tests including thyroid, liver, kidney and sugar levels, a PET-CT and a review of past illnesses. These give a baseline to compare against.
-
The drip
A short drip into a vein in day-care, repeated every few weeks depending on the drug and schedule. Most people go home within a few hours.
-
Blood tests before each dose
Thyroid, liver and kidney results are checked each time, because immune side effects often show up in blood tests before symptoms appear.
-
Response scans
PET-CT scans at planned points show how the lymphoma is responding. Early scans can be hard to read, so the team may wait for a second scan before deciding.
-
Continuing or stopping
Treatment continues while it works and side effects stay manageable, or until a planned end point or a transplant. Follow-up blood tests carry on for some months after the last drip.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Being straight with you
What side effects should you know about?
Most people have mild side effects such as tiredness, itching, a rash or joint aches. A smaller number develop immune-related side effects, where the released immune system attacks a healthy organ.
Organs that can be affected
The thyroid is the most commonly affected, causing tiredness, weight change or feeling cold or hot. Less often, the lungs become inflamed, called pneumonitis, or the bowel becomes inflamed, causing loose motions and belly pain. The liver, skin, kidneys and hormone glands can also be affected.
Why early reporting matters
Caught early, most immune side effects settle with a pause in treatment and steroid medicines. Left for days, some can become serious. Report any new symptom, even one that seems unrelated, and tell every doctor you see that you are on immunotherapy.
They can appear late
Immune side effects can start months into treatment or after it has finished. Some, like an underactive thyroid, may need lifelong tablets.
Does treating side effects stop the drug working?
Families often worry that steroids will switch the immune response off again. Short courses given for side effects do not appear to undo the benefit in most people. Your team balances the two, and may restart the drug once the side effect has settled, or change the plan if it was serious.
Never start or stop steroids, or any other medicine, on your own. Your team decides.
!
Symptoms that need same-day care
If you are breathless at rest, have chest pain, confusion or collapse, go to the nearest emergency department now or call 108. Contact your team the same day for a new cough or breathlessness, loose motions several times a day or blood in the stool, yellow eyes, severe headache, or a fever. Say you are on a checkpoint inhibitor. Do not wait for your next appointment.
Commonly believed
What do families often misunderstand about immunotherapy?
"Immunotherapy is natural, so it is mild."
Many people tolerate it well, but immune side effects can be serious. It needs the same careful monitoring as any cancer treatment.
"Immunity boosters and supplements will help it work."
Supplements do not help these drugs, and some herbal products affect the liver or immune system. Show the team everything you take before starting.
"If the first scan looks bigger, the drug has failed."
Immune activity can make glands look larger or brighter early on. The team often repeats the scan before deciding. Do not stop treatment on the basis of one report.
"Once treatment stops, the side effects are over."
Some immune side effects start after the last dose. Keep reporting new symptoms and keep your treatment card with you for months afterwards.
Questions we are asked
Common questions about checkpoint inhibitors in relapsed Hodgkin
Which is used more, pembrolizumab or nivolumab?
Both work by blocking the same PD-1 switch and both are used for relapsed classical Hodgkin lymphoma. The choice often depends on approvals, schedule, availability, cost and scheme cover rather than one being clearly stronger. Your haematologist will explain why a particular drug is suggested for you.
How long will I stay on treatment?
It varies. Some people stay on it for many months while it keeps the lymphoma controlled. Others move on to a transplant once the disease is under control, or stop because of side effects. Your team will review the plan at each scan.
Are checkpoint inhibitors used in first treatment now?
Research is testing nivolumab combined with chemotherapy as a first treatment for advanced Hodgkin lymphoma, with encouraging early results. Practice is changing, and it is not yet standard everywhere. Ask your haematologist whether it is relevant to you.
Can I work while on immunotherapy?
Many people keep working, as tiredness is often milder than with chemotherapy. Plan for drip days and blood tests, and let your employer know that sudden symptoms may need same-day medical attention. Adjust if tiredness builds.
Can I take vaccines during treatment?
Inactivated vaccines such as the flu vaccine are usually fine, but live vaccines are generally avoided after a transplant. Check with your team before any vaccine, including for travel, so it can be timed safely around your treatment.
Is it covered by Aarogyasri or insurance?
These are costly medicines. Aarogyasri, CGHS, ECHS, EHS, PM-JAY and cashless insurance may cover them for approved indications, but entitlements vary and change. Check your current cover with the helpline before treatment starts, and keep all approval letters.
What happens if it stops working?
There are still options, such as other chemotherapy combinations, brentuximab if not already used, radiotherapy to specific areas, clinical trials or a donor transplant. The right path depends on your health and past treatment.
My mother has thyroid disease. Can she still have it?
Often yes. Existing thyroid disease does not rule out treatment, but thyroid tests will be watched closely and her tablets may need adjusting. Share her full history and medicines list with the haematology team at the first visit.
Your Haematologist
Meet CION's haematologist. One specialist for your blood report and your plan.
Dr. Basudev Pokhrel reviews blood counts, transfusion needs and blood disorders, and works with the CION tumour board on blood cancers.
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- National Cancer Institute — Pembrolizumab
- National Cancer Institute — Nivolumab
- National Cancer Institute — Adult Hodgkin Lymphoma Treatment (PDQ) - Patient Version
- Cancer Research UK — Hodgkin lymphoma
- American Cancer Society — Treating Hodgkin lymphoma
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Talk to us
Not sure what to do next?
Tell us what has been found so far and we will help you reach the right specialist. One helpline serves every CION centre.