A trial of tazemetostat for diffuse large B cell lymphoma and follicular lymphoma
Please note - this trial is no longer recruiting patients. We hope to add results when they are available.
Cancer type:
Status:
Phase:
This trial is for people with diffuse large B cell lymphoma or follicular lymphoma that has come back after or continued to get worse during treatment.
The trial is now only open to people with follicular lymphoma. There are enough people with diffuse large B cell lymphoma taking part in the trial.
More about this trial
Doctors can treat diffuse large B cell lymphoma (DLBCL) and follicular lymphoma with chemotherapy, targeted cancer drug and a steroid such as prednisolone. If your lymphoma comes back, you might have the same treatment.
Tazemetostat is a targeted cancer drug. It blocks an
The researchers want to find out if it can help people with lymphoma. In this trial some people with DLBCL will have:
- tazemetostat only
- tazemetostat and prednisolone
People with follicular lymphoma will have tazemetostat only.
The main aims of this trial are to find out:
- how well tazemetostat works
- what the side effects are
Who can enter
The following bullet points list 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 diffuse large B cell lymphoma (DLBCL) or follicular lymphoma that has come back after treatment or continued to get worse during treatment
- have had at least 2 previous
standard treatments for your lymphoma - have an area of lymphoma that can be measured
- have satisfactory blood test results
- are able to do anything apart from heavy physical work (performance status 0, 1 or 2)
- are willing to use reliable contraception during treatment and for a month after if there is any chance you or your partner could become pregnant
- are at least 18 years old
Who can’t take part
You cannot join this trial if any of these apply.
Cancer related
You:
- have DLBCL and you are able to have high dose treatment followed by a stem cell transplant using your own cells (
autologous stem cell transplant) - have lymphoma spread to the brain or have had treatment for lymphoma spread to the brain
- have had chemotherapy in the past 3 weeks, or for a group of chemotherapy drugs called
nitrosoureas this is 6 weeks - have had a targeted cancer drug in the past 2 weeks, for
monoclonal antibodies this is 4 weeks - have had radiotherapy in the past 2 weeks to 12 weeks depending on the type of radiotherapy, the trial team can tell you about this
- have had high dose treatment followed by a stem cell or bone marrow transplant of your own cells (autologous transplant) in the past 2 months
- have had high dose treatment followed by a stem cell or bone marrow transplant from a donor (allogenic transplant) in the past 3 months
- have ongoing moderate to severe
graft v host disease (GVDH) following your donor transplant - have any ongoing moderate to severe side effects from any previous treatment
- have already had tazemetostat or a drug that works in a similar way
- have had another cancer apart from successfully treated
non melanoma skin cancer andin situ carcinoma , or any previous cancer that was successfully treated and there hasn’t been a sign of it for the past 5 years
Medical conditions
You:
- are taking medication that affects the CYP enzymes
- aren’t willing to exclude food from your diet that affects the CYP enzymes
- have had major surgery in the past 4 weeks, or minor surgery in the last 3 weeks
- have a problem absorbing medication in your
digestive system or have ongoing problems such as being sick or diarrhoea that can affect how well you absorb medication - have had a stroke in the past 6 months
- have a heart attack, unstable angina or another heat problem in the past 6 months
- have had a blood clot (DVT) or a blood clot on the lung (PE) in the 3 months before starting treatment
- have an infection that needs treatment that reaches the whole body (
systemic treatment) - have HIV
- have had an
organ transplant - have any other medical or mental health condition that your doctor or the trial team think could affect you taking part
Other
You:
- are allergic to tazemetostat, prednisolone or any of their ingredients
- are pregnant or breastfeeding
Trial design
Please note the trial team is no longer asking people with diffuse large B cell lymphoma to join the trial.
There are 2 parts to this trial.
The first part was a phase 1 trial to find the best dose of tazemetostat to give. This part is now closed.
The second part is a phase 2 trial. The trial team need 340 people to take part. There are 6 groups in this part. Some groups are now closed.
Tazemetostat is a tablet you take twice a day. You continue to take tazemetostat as long as it is helping and the side effects aren’t too bad.
You shouldn’t eat grapefruit or drink grapefruit juice for a week before starting tazemetostat. This is because they can affect how much tazemetostat is in your blood.
Prednisolone is a tablet. If you are in one of the groups taking prednisolone your doctor will tell you how many to take and how often.
Tissue and blood samples
The team will ask your permission to get a small sample of tissue from when you were first diagnosed.
When you agree to take part in the trial they will also ask for a sample of tissue (biopsy) taken from your lymphoma and, or a
Researchers will use these samples to find out more about lymphoma and what happens to tazemetostat in the body.
When you first start treatment, you have a blood sample taken on 3 separate occasions. They will use these samples to find out what happens to tazemetostat in the body.
Hospital visits
You see the doctor before taking part to have some tests. These include:
- a physical examination
- blood tests
- heart trace (
ECG ) - CT scan or MRI scan
- FDG-PET scan
- bone marrow test if needed
For the first 8 weeks of treatment, you will see the doctor every 2 weeks for:
- a physical examination
- heart trace
- blood tests
Then you see the doctor every 4 weeks for the same tests as above. Every 2 weeks a member of the team will phone you to see how you are.
You have the same scans you had a the beginning every 2 months for the first 6 months. Then every 3 months after that.
When you stop treatment, you see the doctor for:
- a physical examination
- heart trace
- blood tests
After treatment a member of the trial team will phone you to see how you are and to ask if you have started any other treatment for your lymphoma.
Side effects
Your doctor and nurse will monitor you closely for any side effects. Let your doctor or nurse know as soon as possible if:
- you have severe side effects
- your side effects aren’t getting any better
- your side effects are getting worse
- you notice anything unusual or anything that has changed
Tazemetostat is a new drug and there might be side effects we don’t know about yet. The common side effects of tazemetostat we do know about from ongoing clinical trials include:
- lack of energy
- overall feeling of weakness
- a drop in the blood cells causing an increased risk of infection, bruising and bleeding
- loss of appetite
- constipation or diarrhoea
- muscle spasms
- feeling or being sick
- dry skin
- changes in taste
- shortness of breath
- tummy (abdominal) pain
We have information about the side effects of prednisolone.
Your doctor or a member of the trial team will tell you about the side effects of tazemetostat and prednisolone before you agree to take part in the trial.
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.
Chief Investigator
Professor Peter Johnson
Supported by
Epizyme, Inc.
Experimental Cancer Medicine Centre (ECMC)
NIHR Clinical Research Network: Cancer
If you have questions about the trial please contact our cancer information nurses
Freephone 0808 800 4040