Clinical trial NCT04631835: Phase I Study of the HS-10352 in Patients With Advanced Breast Cancer
Official title: A Phase 1, Open-label, Multicenter Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Efficacy of Single and Multiple Doses of Oral Administration of HS-10352 in Patients With Locally Advanced or Metastatic Breast Cancer Progressing After Standard Therapy
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE1
Conditions: Breast Cancer
Keywords: dose-escalation
advanced solid tumors
estrogen receptor positive breast cancer
PIK3CA gene mutation
Lead sponsor: Jiangsu Hansoh Pharmaceutical Co., Ltd.
Sponsor class: INDUSTRY
First posted: 2020-11-17
Enrollment: 54
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: NA
Intervention model: SINGLE_GROUP
Primary purpose: TREATMENT

Brief summary: HS-10352 is a highly potent and selective small molecule inhibitor of phosphoinositide 3-kinase (p110α). In preclinical studies, it demonstrated strong activity against PI3K p110α in vitro and in vivo, and inhibited tumor cell growth. The first-in-human trial is conducted to assess the maximum tolerated dose (MTD) and dose limiting toxicity (DLT), to evaluate the pharmacokinetics, safety and preliminary anti-tumor activity of HS-10352 at single dose and multiple doses.

Detailed description: This is a phase I, open-label, multicenter study to evaluate safety, tolerability, pharmacokinetics, and efficacy of single and multiple doses of oral administration of HS-10352 in patients with locally advanced or metastatic breast cancer with hormone receptor (HR) positive and epidermal growth factor receptor 2 (HER2) negative who have progressed following prior therapy. There is a dose-escalation study, which is designed to evaluate the safety, tolerability, and pharmacokinetics of single dose and multiple doses of HS-10352 given once every day (QD). An alternative dosing schedule of twice every day (BID) may be investigated if the drug clearance of HS-10352 is faster than anticipated.

All patients will be carefully followed for adverse events during the study treatment and for 28 days after the last dose of study drug. Subjects of this study will be permitted to continue therapy with assessments for progression once every 8 weeks, if the product is well tolerated and the subject has stable disease or better. As the disease progresses, survival follow-up is recommended bimonthly.

Eligibility criteria: Inclusion Criteria:

1. Men or women aged more than or equal to (≥) 18 years, and less than (\<) 75 years.
2. HR+ HER2- locally advanced or metastatic breast cancer patients confirmed by histology or cytology for who that standard treatment is invalid, unavailable or intolerable.
3. Patients have at least one target lesion according to RECEST 1.1. The requirements for target lesions are: measurable lesions without local treatment such as irradiation, or with definite progress after local treatment, with the longest diameter ≥ 10 mm in the baseline period (in case of lymph nodes, the shortest axis ≥ 15 mm is required)
4. ECOG performance status was 0-1 and did not deteriorate in the previous 2 weeks.
5. Estimated life expectancy greater than (\>) three months.
6. Females should be using adequate contraceptive measures throughout the study; should not be breastfeeding at the time of screening, during the study and until 3 months after completion of the study; and must have evidence of non-childbearing potential.
7. Sign Informed Consent Form.

Exclusion Criteria:

1. Treatment with any of the following:

   1. Previous or current treatment with PI3K, AKT or mTOR inhibitors.
   2. Any cytotoxic chemotherapy, investigational agents within 21 days of the first dose of study drug; anticancer drugs which have been received within 14 days before the first administration.
   3. Radiotherapy with a limited field of radiation for palliation within 2 weeks of the first dose of study drug, or patients received more than 30% of the bone marrow irradiation, or large-scale radiotherapy within 4 weeks of the first dose.
   4. Major surgery (including craniotomy, thoracotomy, or laparotomy, etc.) within 4 weeks of the first dose of study drug.
2. Inadequate bone marrow reserve or organ function.
3. Uncontrolled pleural effusion or ascites or pericardial effusion.
4. Known and untreated, or active central nervous system metastases.
5. History of primary or secondary diabetes.
6. History of acute or chronic pancreatitis
7. Refractory nausea, vomiting, or chronic gastrointestinal diseases, or inability to swallow the study drug that would preclude adequate absorption of HS-10352.
8. History of hypersensitivity to any active or inactive ingredient of HS-10352 or to drugs with a similar chemical structure or class to HS-10352.
9. Judgment by the investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions, and requirements.
10. Any disease or condition that, in the opinion of the investigator, would compromise the safety of the patient or interfere with study assessments.

Primary outcomes:
measure: Number of subjects with any dose limiting toxicity (DLT)
timeFrame: From the single dose to the last dose of the first cycle defined as 28 days of multiple dosing (35 days).
measure: To determine the maximum tolerated dose (MTD)
timeFrame: From the single dose to the last dose of the first cycle defined as 28 days of multiple dosing (35 days).
Secondary outcomes:
measure: Incidence and severity of treatment-emergent adverse events
timeFrame: From baseline until 28 days after the last dose
measure: Observed maximum plasma concentration (Cmax) after single dose of HS-10352
timeFrame: From pre-dose to 120 hours after single dose on Day 1
measure: Observed maximum plasma concentration (Cmax ss) after multiple dose of HS-10352
timeFrame: From pre-dose to 24 hours after the first dose of multiple dosing on Day 1 of the second 28-Day cycle of therapy
measure: Time to reach maximum plasma concentration (Tmax) after single dose of HS-10352
timeFrame: From pre-dose to 120 hours after single dose on Day 1
measure: Time to reach maximum plasma concentration (Tmax) after multiple dose of HS-10352
timeFrame: From pre-dose to 24 hours after the first dose of multiple dosing on Day 1 of the second 28-Day cycle of therapy
measure: Apparent terminal half-life (t1/2) after single dose of HS-10352
timeFrame: From pre-dose to 120 hours after single dose on Day 1
measure: Area under plasma concentration versus time curve from zero to the 24-hour sampling time (AUC0-24) after single dose of HS-10352
timeFrame: From pre-dose to 24 hours after single dose on Day 1
measure: Area under plasma concentration versus time curve from zero to last sampling time (AUC0-t) after single dose of HS-10352
timeFrame: From pre-dose to 120 hours after single dose on Day 1
measure: Area under the plasma concentration versus time curve from time zero to infinity (AUC0-∞) after single dose of HS-10352
timeFrame: From pre-dose to 120 hours after single dose on Day 1
measure: To further evaluation of the anti-tumor activity of HS-10352 by assessment of objective response rate (ORR)
timeFrame: From the date of first occurrence of complete response (CR) or partial response (PR) on 2 consecutive occasions (≥4 weeks), until the date of disease progression or withdrawal from study, approximately 3 years
measure: Disease control rate of HS-10352
timeFrame: From the first occurrence of confirmed CR or PR or SD until the date of disease progression or withdrawal from study, approximately 3 years
measure: Deepness of response of HS-10352
timeFrame: From the date of enrollment until the date of disease progression or death, approximately 3 years
measure: Progression-free survival of HS-10352
timeFrame: From the date of enrollment until the date of disease progression or death from any cause, approximately 3 years
measure: Overall survival of HS-10352
timeFrame: From the date of enrollment until the date of death from any cause, approximately 5 years
Other outcomes:
Locations:
city: Guanzhou
country: China
facility: SUN YAT-SEN Memorial Hospital
state: Guangdong
city: Changsha
country: China
facility: Hunan Cancer Hospital
state: Hunan
city: Shanghai
country: China
facility: Fudan University Shanghai Cancer Center
state: Shanghai
Study officials:
References: