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This is a First in Human (FIH) Phase 1, multicenter, open label, dose escalation and dose expansion study to evaluate the safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity of BGB-30813 as monotherapy and in combination with tislelizumab in participants with advanced or metastatic solid tumors. The study will be conducted in 2 parts: Phase 1a dose escalation and Phase 1b dose expansion.

Researchers are looking for a better way to treat people who have advanced solid tumors.
Advanced solid tumors are types of cancer that may have spread to nearby tissue, lymph nodes, and/or to distant parts of the body and that are unlikely to be cured or controlled with currently available treatments. This study focuses on certain types of skin cancer, kidney cancer, stomach cancer, and lung cancer.
The study treatment BAY2965501 is currently under development as monotherapy or in combination with a drug named pembrolizumab for the treatment of people with advanced solid tumors.
BAY2965501 blocks an enzyme in T-cells to activate them. T-cells are a type of immune cell that are known to have an anti-cancer effect and BAY2965501 is a potential new immunotherapy.
The main purpose of this first-in-human study is to learn:
how safe different doses of BAY2965501 are when given as a single drug or in combination,
the degree to which medical problems caused by BAY2965501 when given as a single drug or in combination, can be tolerated (also called tolerability),
what maximum amount can be given as a single drug or in combination, and
how it moves into, through and out of the body as a single drug or in combination.
To answer this, researchers will look at:
the number and severity of medical problems participants have after taking BAY2965501 as a single drug or in combination for each dose level. These medical problems are also referred to as adverse events.
the (average) total level of BAY2965501 in the blood (also called AUC) after intake of single and multiple doses
the (average) highest level of BAY2965501 in the blood (also called Cmax) after intake of single and multiple doses Doctors keep track of all medical problems that participants have during the study, even if they do not think the medical problem might be related to the study treatment.
In addition, the researchers want to know if and how the participants' tumors change after taking BAY2965501.
The study will have two parts. The first part, called dose escalation, is done to find the most appropriate dose that can be given in the second part. For this, participants will be assigned to receive one of the planned doses and schedules of BAY2965501 as single drug or participants will be assigned to one of the increasing doses of BAY2965501 in combination with 200mg pembrolizumab. All participants will take BAY2965501 by mouth. Additionally, in the combination group, pembrozilumab will be given.
In the second part, called dose expansion, all participants in the single drug group will receive up to 2 of the most appropriate doses of BAY2965501 from the 1st part as tablet by mouth. The participants in the combination group will receive the most appropriate dose of BAY2965501 from the first part.
Participants in both parts of the study, will take the study treatment until the tumor gets worse (also known as 'disease progression'), or until the participants have medical problems. In general, the study treatment is planned for a maximum of 35 cycles.
Each participant will be in the study for several months, including a screening phase of up to 28 days, few months of treatment depending on the participant's benefit, and a follow up phase after the end of treatment. The following approximate numbers of visits to the study site are planned: two during the screening phase, six in the first treatment month, one to three per month in the following periods.
Participants in part two will be assigned to one of 3 groups depending on cancer characteristics.
Study procedures described below may vary between these groups.
During the study, the study team will:
take blood and urine samples
do physical examinations
check vital signs such as blood pressure, heart rate, body temperature
examine heart health using ECG (electrocardiogram)
check if the participants' cancer has grown and/or spread using CT (computed tomography) or MRI (magnetic resonance imaging) and, if needed, bone scan
take tumor samples (if required)
The treatment period ends with a visit no later than 7 days after the last BAY2965501 dose in the single drug and combination group. About 30 and 90 days after the last dose and every 12 weeks thereafter, the study team will check the participants' health and any changes in cancer. This follow-up period ends with worsening of the cancer, start of new anti-cancer therapy, or until the participant leaves the study. In addition, the study doctors and their team will contact the participant every 12 weeks to learn about the participant's survival. This ends no later than 12 months after the last participant started treatment or by the end of the study, whichever comes first.

Immune therapies work with the body's immune system to treat a number of cancers. They work with T-cells, a type of white blood cell, to target and attack specific tumors. However, some tumors can become resistant to attack by T-cells over time. They do this by sending "off" signals to T-cells. The researchers are finding ways to switch the T-cells back on.
Early studies have shown that ASP1570 can switch T-cells back on to attack tumors.
This study will provide more information on this potential new treatment in adults with advanced solid tumors. Their tumor has either grown outside of the area where it started (locally advanced and unresectable) or it has spread to other parts of the body (metastatic). Their cancer gets worse after standard therapy or they are unable to have standard therapy.
People will either be treated with ASP1570 by itself, or together with another medicine called pembrolizumab.
This study will be in 2 parts.
In Part 1, the best dose of ASP1570 to give to people with advanced solid tumors will be worked out. Different small groups of people with advanced solid tumors will take lower to higher doses of ASP1570 by itself or with pembrolizumab. There are different doses of ASP1570, with each group staying on the same dose. There is just 1 dose of pembrolizumab. After taking the lowest dose of ASP1570, the first group will be checked for medical problems. The next group can only take the higher dose of ASP1570 if the first group on the lowest dose had no major medical problems. This will continue in the same way for each group. This means each group will take the next highest dose of ASP1570 as long as the previous group did not have any major medical problems.
Each group will take tablets of ASP1570 either once or twice every day in a 21-day cycle. People taking part in Japan will stay in hospital for up to 21 days during the first treatment cycle only. People will continue with more treatment cycles on the same dose unless they have major medical problems, their cancer gets worse or the study doctor decides that person should stop treatment. People who are also receiving treatment with pembrolizumab will be infused with pembrolizumab on the first day of every other cycle of ASP1570 (once every 6 weeks).
In Part 2, different small groups of people with advanced solid tumors will take the best dose of ASP1570 worked out from Part 1. The dose will not go above the highest dose that people took in Part 1 without getting major medical problems. Some groups of people will have specific advanced tumors. These include tumors from metastatic melanoma or non-small cell lung cancer (NSCLC for short). Other groups will have solid tumors that showed a response in Part 1. Again, each group will take tablets of ASP1570 once or twice every day in a 21-day cycle. Only people with NSCLC will also be infused with pembrolizumab on the first day of every other cycle of ASP1570 (once every 6 weeks). All groups will continue with more treatment cycles with ASP1570 by itself or with pembrolizumab, unless they have major medical problems, their cancer gets worse or the study doctor decides that person should stop treatment.
After treatment with ASP1570, people in the study will visit their clinic 45 days after their last dose of ASP1570. People who were treated with ASP1570 and pembrolizumab will visit their clinic either 45 days after their last dose of ASP1570 or 30 days after their last dose of pembrolizumab. It will depend on which treatment was the last one they had. Then, the study clinic will contact each person in the study at least every 12 weeks until the end of the study or if they decide to leave the study.