Doma Biopharmaceutical Suzhou Co. Ltd.

The goal of study：
The study has two parts: Part 1 Dose Escalation and Part 2 Dose Expansion.
In Part 1, a few participants will receive the lowest dose of study drug. The study team will make sure it is safe and tolerated before enrolling new participants at a higher dose of study drug. There will be up to six or more dose levels of study drug tested (called cohorts). Which dose you receive will depend on how many participants have taken part in the study before you.
The purpose of Part 1 of the study is to evaluate the safety of the study drug at different dose levels, to understand what your body does to the study drug, and to find the best dose of study drug in people who have advanced solid tumor cancers.
In Part 2, participants will receive the best dose level that was determined in Part 1 of the study.
The purpose of Part 2 of the study is to evaluate the safety of the study drug at the dose level determined in Part 1, to understand what your body does to the study drug, and to see how your cancer responds to the study drug.
Participants will:
Participants will have 17 or more visits to the study centre. This study has a screening phase of up to 28 days , and a treatment phase with cycles of 21 days each. Participants will also have an End of Treatment (EOT) visit 21 days after the final study drug treatment, and a Follow-up visit 30 days after the EOT visit . Participants will be contacted by telephone every 3 months after the Follow-up visit to check on the wellbeing and record any new anticancer therapy they may have started.

The goal of this clinical trial is to find out about the safety, efficacy, and tolerability of DM005 for patients with the advanced solid tumors. DM005 is an experimental drug which is not approved by health authorities for the treatment of advanced solid tumors. For each participant, there will be a screening period of up to 28 days, a treatment period consisting of 21-day cycles, an end of treatment (EOT) Visit (+7 days), and a Follow-up Visit at 30 days (±7 days) after the EOT Visit.
Participants with advanced solid malignant tumors will be treated with DM005 on Day 1 of each cycle (every 3 weeks, Q3W). An initial dose of DM005 will be infused intravenously (IV) into each participant for approximately 60 minutes (±10) on Cycle1 Day 1. If there is no infusion-related reaction (IRR) during or after the initial dose, with the Investigator's confirmation and supervision, the subsequent dosing of DM005 in the following cycles maybe infused IV for approximately 30 minutes ( ±5). A 21-day observation period (Cycle 1) will then occur, at the end of which all relevant safety data will be reviewed.

The goal of this clinical trial is to find out about the safety, efficacy, and tolerability of DM001 for patients with the advanced solid tumors. DM001 is an experimental drug which is not approved by health authorities for the treatment of advanced solid tumors.
Participants will have up to 17 visits during the study.There will be up to a 4-week Screening Period followed by a treatment period that will be divided into 3-week cycles/ Participants will have 5 study visits during Cycle 1, 3 visits during Cycles 2 and 3, and 1 visit during subsequent cycles. Participants will have an End of Treatment visit 21 days (+ 7 days) after last dose of study drug and then a follow-up visit 30 days (± 7 days) after the End of Treatment visit.