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What is the aim of the study?
This study is testing a new investigational medicine called LY3954068 for people with Alzheimer’s disease.
LY3954068 is an investigational treatment that is intended to help the body make less of a protein called tau. Tau helps support brain cells, but in Alzheimer’s disease, too much tau can clump together and cause damage which may lead to memory and thinking problems. This medicine is designed to lower the amount of tau so that these harmful clumps form more slowly, which may help slow the disease.
The study aims to understand:
- If LY3954068 is safe for people with Alzheimer’s disease and to see how well people can tolerate it.
- How LY3954068 works inside the body, including what it does and how the body handles it after it is given.
The LY3954068 or placebo is given as an injection into the space around the spine so it can reach the brain more directly.
This study is a double-blind placebo-controlled trial and people in the study will be put into their treatment groups at random. This means:
- Some people will get LY3954068
- Some people will get a placebo (a dummy treatment that has no medicine in it).
- Neither the participant, nor their study doctor will know who is getting which treatment during the first part of the study. This helps make the results fair.
Find more information about why studies use blinding, randomisation and placebo controls.
The study is made up of two parts, A and B.
- Each participant in Part A will receive 1 dose of LY3954068 or placebo (no active drug) given into the spinal fluid.
- Each participant in Part B will receive multiple doses of either LY3954068 or placebo administered into the spinal fluid.
- Participants will also potentially have an opportunity to join a separate study where participants would receive LY3954068.
LY3954068 is an experimental medicine. This means health authorities (like the U.S. Food and Drug Administration and European Medicines Agency) have not approved LY3954068 for the treatment of Alzheimer’s disease.
The study also uses a drug called Flortaucipir F18 to monitor changes in the brain linked to Alzheimer’s disease. Flortaucipir F18 is a special type of medicine that gives off a very small amount of radiation. Medicines like this are called radiopharmaceuticals. Doctors use them before scans to help take clear pictures inside the body. Everyone in the study will have Flortaucipir F18 before their positron emission tomography (PET) scans.
What will participants be asked to do during the study?
During the study, participants will:
- Have some laboratory tests, such as blood, urine or spinal fluid tests. These tests help doctors check for any new side effects, such as symptoms or health changes that might happen after receiving the study medicines or placebo.
- Have brain scans called PET scans and magnetic resonance imaging (MRI) scans. These scans take detailed pictures of the brain to help doctors check brain health and safety.
- Complete tests that look at memory, thinking, and emotional wellbeing.
The study will last up to approximately 45 weeks for Part A, and, 100 weeks for Part B, including the screening period.
If participants would like more details about the tests, procedures, or number of visits, the study team can provide full information.
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This study is testing a new investigational medicine called RO7812653.
The aim of this study is to compare RO7812653 with a placebo (a dummy medicine) to see:
- How well RO7812653 works
- How safe RO7812653 is in people who have early signs of Alzheimer’s disease.
RO7812653 is an experimental medicine. This means health authorities (like the U.S. Food and Drug Administration and European Medicines Agency) have not approved RO7812653 for the treatment of AD.
How the study is carried out
This study is a double-blind placebo-controlled trial. This means:
- Some people will get RO7812653.
- Some people will get a placebo (a dummy treatment that has no medicine in it).
Neither the participant, their study doctor, nor the study team will know who is getting which treatment during the first part of the study. This helps make the results fair.
People in the study will be put into their treatment groups by chance, like flipping a coin. Most participants will have a 3 in 4 chance of receiving RO7812653 (the study drug) and a 1 in 4 chance of receiving a placebo (a dummy treatment).
For the very first group taking part, the chances are slightly different: they will have a 2 in 3 chance of getting the study drug and a 1 in 3 chance of getting a placebo.
Find more information about why studies use blinding, randomisation and placebo controls.
How is the study treatment given?
RO7812653 or placebo is given as an injection into the space around the spine so it can reach the brain more directly. Participants will be given RO7812653 or placebo once in the study.
What will participants be asked to do during the study?
During the study, participants will:
- Have some laboratory tests, such as blood tests. These tests help doctors check for any new side effects, such as symptoms or health changes that might happen after receiving the study medicine.
- Have brain scans called magnetic resonance imaging (MRI) scans. These scans take detailed pictures of the brain to help doctors check brain health and safety.
- Wear a heart monitor that records your heartbeat so doctors can spot any problems that a quick heart test might miss, like your heart beating too fast, too slow, or feeling like it skips a beat.
- Be admitted to hospital to be monitored immediately before, and for 24 hours after receiving RO7812653 or placebo.
- Complete tests that look at memory, thinking, and emotional wellbeing.
If participants would like more details about the tests, procedures, or number of visits, the study team can provide full information.
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This study is looking at a medicine called XBD173. We want to find out if it can improve blood flow in the brains of people living with Alzheimer’s disease.
XBD173 works by attaching to a protein called TSPO. TSPO is found in mitochondria, which are tiny parts of our cells that help produce energy. By attaching to TSPO, XBD173 may help the small blood vessels in the brain work better. Better blood flow may help keep the brain healthy and protect it from damage.
If you take part, you will be asked to take XBD173 capsules by mouth. Most participants will take one capsule twice a day for 4 weeks. During another part of the study, participants will take a placebo, which looks the same as XBD173 but does not contain any active medicine.
Most participants will:
- Take either XBD173 or placebo for 4 weeks
- Have a 6-week break
- Then take the other treatment for 4 weeks
Neither you nor the study team will know which treatment you are taking at the time. Find more information about why studies use blinding, randomisation and placebo controls.
Before joining the study, you will attend a screening visit to check whether the study is suitable for you.
During the study, participants will attend 4 main study visits and 2 shorter safety visits. At the main visits, you will have:
- Simple tests of memory and thinking
- A blood sample taken
- An MRI scan of the brain
An MRI scan uses a strong magnet to produce detailed pictures of the brain. It does not use X-rays. Some MRI scans will use a small amount of contrast dye to help show the brain’s blood vessels more clearly. During one MRI scan, you will be asked to breathe air containing a small amount of extra carbon dioxide for a few minutes. This is a safe way to measure how well the brain’s blood vessels respond to changes in blood flow.
The main part of the study lasts about 14 weeks.
XBD173 may not provide a direct benefit to you. However, the information collected may help researchers learn more about Alzheimer’s disease and develop treatments for people in the future. XBD173 has been used safely in previous studies.
We are also inviting healthy volunteers to take part. Healthy volunteers will attend for one MRI scan only and will not receive any study medication. Their results will help researchers compare brain blood flow between people with and without Alzheimer’s disease.
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What is the goal of this study?
This study is looking at a new gene therapy called AVB 101. It is being developed to treat people with Frontotemporal Dementia who carry a Progranulin Mutation (FTD GRN).
FTD GRN is a rare type of dementia that usually starts earlier in life. It affects behaviour, language, and movement. People with this condition have very low levels of a protein called progranulin (PGRN) in the brain. Without enough PGRN, brain cells (neurons) begin to die, and the brain cannot work properly.
AVB 101 is designed to help the body make more PGRN, which may help protect brain cells.
What is the study trying to find out?
The study has three main questions:
- Is a one time dose of AVB 101 safe for people with FTD GRN?
- Does AVB 101 increase PGRN levels in the brain back to normal or close to normal?
- Can AVB 101 help slow down or stop the worsening of FTD GRN?
What treatment will participants receive?
This study does not use a placebo. This means everyone who joins the study will receive AVB 101.
AVB 101 is a gene therapy which is given once, directly into the brain, using a special medical procedure. After this one time treatment, participants will have regular check-ups at the study centre for 5 years so doctors can see how they are doing and how well the treatment is working.
Trial recruitment and assessment sites are in London and Cambridge. However, all participants will be required to travel to the trial surgical site in Cardiff to receive AVB-101.
What will participants be asked to do during the study?
During the study, participants will:
- Have some laboratory tests, such as blood tests. These tests help doctors check for any new side effects, such as symptoms or health changes that might happen after receiving the study medicine.
- Have brain scans called MRI scans. These scans take detailed pictures of the brain to help doctors check brain health and safety.
- Complete tests that look at memory, thinking, and emotional wellbeing.
If participants would like more details about the tests, procedures, or number of visits, the study team can provide full information.
It is a one-time treatment of AVB-101 with follow-up assessments for 5 years.
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What is the aim of the study?
This study is testing a new medicine called ALN 5288 for people with Alzheimer’s disease. ALN 5288 is a treatment that helps the body make less of a protein called tau. Too much tau in the brain can cause it to clump together, which may lead to memory and thinking problems.
The medicine works by finding and breaking down the instructions inside cells that tell the body to make tau. By reducing tau production, the aim is to lower tau levels, and so slow down the changes in the brain caused by Alzheimer’s disease. The medicine is given as an injection into the space around the spine so it can reach the brain more directly.
What the study wants to find out
The study has two main goals:
- To check if ALN 5288 is safe for people with Alzheimer’s disease and to see how well people can tolerate it.
- To learn how the medicine works inside the body, including what it does and how the body uses and clears it after it is given.
How the study is carried out
This study is a double-blind placebo-controlled trial. This means:
- Some people will get ALN 5288.
- Some people will get a placebo (a dummy treatment that has no medicine in it).
Neither the participant, their study doctor, nor the study team will know who is getting which treatment during the first part of the study. This helps make the results fair.
In the second part of the study, everyone will get ALN 5288, no matter what they received at the start. This part is called an open label extension, because everyone and their doctors will know they are getting the real medicine.
Find more information about why studies use blinding, randomisation and placebo controls.