A trial looking at different ways of having isatuximab for multiple myeloma that has come back or stopped responding to treatment (IRAKLIA)

Please note - this trial is no longer recruiting patients. We hope to add results when they are available.

Cancer type:

Blood cancers
Myeloma

Status:

Closed

Phase:

Phase 3

This trial is looking at having isatuximab as a drip into your bloodstream (intravenous) or as an injection under your skin (subcutaneous). 

It is for people with multiple myeloma that:

  • has come back after the initial treatment (relapsed multiple myeloma)
  • continued to grow despite treatment (refractory multiple myeloma)
     

More about this trial

Myeloma is a type of cancer that starts in the bone marrow Open a glossary item. Doctors usually treat multiple myeloma with a combination of different types of drugs:

  • targeted drugs such as lenalidomide 
  • chemotherapy such as cyclophosphamide 
  • steroids such as dexamethasone 

The treatment can work well for some time. But sometimes the cancer can continue to grow despite treatment. This is refractory or relapsed multiple myeloma.

Treatment for refractory or relapsed myeloma depends on a number of things including the type of treatment you have before. A possible treatment is a combination of:

  • isatuximab 
  • pomalidomide 
  • dexamethasone

Isatuximab is a type of targeted drug called a monoclonal antibody. You usually have it as a drip into your bloodstream (intravenous or IV) every week. It takes between 30 to 60 minutes each time. This is the standard treatment Open a glossary item

Doctors think that having isatuximab as an injection under your skin (subcutaneous or SC) works just as well as isatuximab IV. But they want to find out for sure. 

Everyone taking part in this trial has one of the following:

  • isatuximab SC with pomalidomide and dexamethasone 
  • isatuximab IV with pomalidomide and dexamethasone 

The main aims of this trial are to find out:

  • how well isatuximab SC works 
  • how isatuximab SC is absorbed by the body
     

Who can enter

The following bullet points are a summary of the entry conditions for this trial. Talk to your doctor or the trial team if you are unsure about any of these. They will be able to advise you. 

Who can take part
You may be able to join this trial if all of the following apply:

  • you have myeloma that has come back or stopped responding to treatment (refractory or relapsed myeloma)  
  • you have myeloma that shows up in blood and urine tests  
  • you have had at least one type of treatment for myeloma in the past 
  • you have had at least 2 treatment cycles of lenalidomide alone or with bortezomib, carfilzomib or ixazomib 
  • if you only had one type of treatment, your cancer must have got worse (progressed) within 2 months of having treatment with lenalidomide
  • you can look after yourself but may not be able to do heavy physical work (performance status 0 or 1)
  • you have satisfactory blood tests results 
  • you are at least 18 years old
  • you are willing to use contraception during the study and for a certain time after if there is any chance you or your partner could become pregnant

Who can’t take part

Cancer related
You cannot join this trial if any of these apply:

  • your myeloma never responded to any treatment you had. This is primary refractory myeloma. 
  • you have a rare type of cancer called plasma cell leukaemia. Your doctor can tell you more about this.
  • you have had pomalidomide 
  • you had any cancer treatment in the past 2 weeks such as surgery, radiotherapy or drug treatments
  • your cancer got worse within 2 months of having treatment with isatuximab, daratumumab or any other similar drug 
  • you had a stem cell transplant from a donor and have symptoms of graft versus host Open a glossary itemdisease (GvHD) 
  • have had drugs that damp down your immune system Open a glossary item in the last 2 months 
  • you are sensitive to isatuximab, thalidomide, lenalidomide, dexamethasone or any other similar drug 

Medical conditions
You cannot join this trial if any of these apply. You:

  • can’t take drugs to prevent blood clots such as warfarin for any reason 
  • have a high risk of bleeding 
  • take a large amount of prednisolone or any other similar drug every day and you need to continue taking it for more than a week 
  • have heart problems such as angina  Open a glossary itemthat isn’t controlled or you had a heart attack in the last year
  • have had an experimental drug in the last 28 days  
  • have had any other cancer in the last 3 years, apart from non melanoma skin cancer, any carcinoma in situ Open a glossary item or low risk prostate cancer that has been treated  
  • are known to be HIV, hepatitis B or hepatitis C positive 
  • have a condition that affects the way you absorb nutrients from food
  • have a rare condition where an abnormal protein accumulates in the tissues (AL amyloidosis)

Other
You cannot join this trial if any of these apply. You:

  • are pregnant or breastfeeding 
  • have any other medical condition or mental health problem that the trial team think would affect you taking part in this trial 
  • are directly involved in running this trial or you are a family member of someone who is 

Trial design

This is a phase 3 trial. The researchers need around 20 people from the UK to take part. 

It is a randomised trial. The people taking part are put into 1 of the following groups by a computer:

  • isatuximab SC with pomalidomide and dexamethasone 
  • isatuximab IV with pomalidomide and dexamethasone 

Neither you nor your doctor will be able to decide which group you are in. 

 

Everyone has treatment in cycles of treatment. This means that you have the 3 drugs and then a rest to allow your body to recover. Each cycle of treatment last 4 weeks. 

This is how you have each cycle of treatment. You have:

  • isatuximab IV or SC every week for the first month. You then have isatuximab IV or SC every 2 weeks. 
  • pomalidomide as tablets that you swallow whole every day for 3 weeks. You then have a break of a week.
  • dexamethasone as tablets that you swallow once every week

You then start a new cycle of treatment. This continues for as long as the treatment is working and the side effects aren’t too bad. 

Isatuximab SC
Your nurse puts a small needle into your skin which is attached to a pump or device. This device has isatuximab. The device gives the drug slowly over 10 minutes. At the end of the injection, the needle retracts back into the device and this is then removed. 

Isatuximab IV
It takes between 30 to 60 minutes to have isatuximab IV each time. 

Quality of life questionnaires 
Everyone taking part completes quality of life questionnaires. They ask about how you have been feeling and what side effects you have had. 

You complete the questionnaires:

  • before the start of treatment
  • at set times during treatment 
  • at the end of treatment 
  • then every 1 to 3 months until the end of the trial

Research samples
The researchers will ask to take extra blood tests as part of this trial. Where possible, you have them at the same time as your routine blood tests. They use these blood samples to understand more about how isatuximab is absorbed by the body.

Hospital visits

You see a doctor and have some tests before taking part. These tests might include: 

You have treatment in the hospital outpatient department. You see the trial doctor at the hospital every week for the first month. You then see the trial team every 4 weeks. You have blood tests and a physical examination before the start of each treatment cycle. 

When you finish treatment, you go to hospital for follow up appointments. You see the trial team every one or 3 months until the trial finishes.   

 

Side effects

The trial team monitor you during treatment and afterwards. Contact your advice line or tell your doctor or nurse if any side effects are bad or not getting better. 

Isatuximab can affect the immune system. It may cause inflammation in different parts of the body. This can cause serious side effects. They could happen during treatment, or some months after treatment has finished. Rarely, these side effects could be life threatening. Your doctor or nurse can explain what these side effects are, the risk of them happening and what to look out for.
 
If you have any of these side effects tell your doctor or nurse as soon as possible. You should tell them that you are on or have been on an immunotherapy.

The most common side effects of isatuximab are:

You may have different side effects if you have isatuximab as an injection under your skin. And there may be some side effects the doctors don’t know about yet. Your treatment team will monitor you during and after the injection.   

The most common side effects of pomalidomide are:

  • chest infection
  • a drop in the number of blood cells 
  • loss of appetite
  • breathlessness and cough
  • diarrhoea or constipation
  • feeling sick
  • pain in your bones and muscle spasms
  • tiredness 
  • high temperature 
  • swelling of your arms and legs 

We have information about the side effects of pomalidomide and dexamethasone. 

Recruitment start:

Recruitment end:

How to join a clinical trial

Please note: In order to join a trial you will need to discuss it with your doctor, unless otherwise specified.

Please note - unless we state otherwise in the summary, you need to talk to your doctor about joining a trial.

Chief Investigator

Dr Mamta Garg

Supported by

Sanofi
 

If you have questions about the trial please contact our cancer information nurses

Freephone 0808 800 4040

Last review date

CRUK internal database number:

18465

Please note - unless we state otherwise in the summary, you need to talk to your doctor about joining a trial.

Last reviewed:

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