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A Phase I Study of YY-20394 in Patients With B Cell Hematologic Malignancies

A Phase I Study of YY-20394 Given Orally to Patients With Relapsed or Refractory B Cell Hematologic Malignancies

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03757000
Enrollment
42
Registered
2018-11-28
Start date
2017-12-25
Completion date
2019-05-30
Last updated
2018-12-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

B-cell Chronic Lymphocytic Leukemia, B-cell Lymphoma Recurrent

Keywords

YY-20394, B-cell Lymphoma Recurrent

Brief summary

Protocol YY-20394-001 is a phase I open-label, first in human, dose escalation study to assess the tolerability, pharmacokinetics (PK) and efficacy of YY-20394 in patients with relapse or refractory B cell malignant hematological tumor.

Detailed description

This is a two-part study comprised of a dose escalation part and a dose expansion part. In the dose escalation part single patient cohorts will be dosed until a single related toxicity of Grade ≥ 3 or a Dose Limiting Toxicity (DLT) is observed. If this occurs, the study will switch to a conventional oncology 3+3 design (3 patients per dose cohort, with the potential to add an additional 3 patients if toxicity is observed) and escalation will continue until the maximum tolerated dose (MTD) is reached and a recommended Phase II (RP2D) dose is determined. Once the MTD is established a separate dose expansion part will enroll up total additional 12 patients at the RP2D. In this clinical trial, YY-20394 is given orally once daily. A treatment cycle is defined as 28 days. YY-20394 was given until disease progression, unacceptable toxicity, or withdrawal from the study. The protocol was initiated with a single-patient cohort, treated with oral YY-20394 20 mg once daily (QD). Subsequent cohorts used a 3+3 design and evaluated doses of 40-320mg QD. Adverse events (AEs) were graded by NCI-CTCAE v4.0. Efficacy was assessed according to IWG-NHL and CLL consensus response criteria.

Interventions

YY-20394 is a new type of PI3K-δ selective inhibitor which differs structurally from idelalisib and its analogs, showing high potency against PI3Kδ, but with markedly improved selectivity (\>1,000-fold selectivity for PI3K-δ versus PI3Kγ). This higher selectivity for PI3Kδ may decrease the risk of serious infection seen with idelalisib and especially with duvelisib due to strong immune suppression.Preclinical evaluation has demonstrated improved efficacy and safety for YY-20394 compared to idelalisib.

Sponsors

Shanghai YingLi Pharmaceutical Co. Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

dose escalation

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Males and/or females over age 18 2. Histologically or cytologically confirmed B cell malignancies 3. Eastern Cooperative Oncology Group performance status of 0 to 2 4. Life expectancy of at least 3 months 5. At least one measurable lesion by Computed Tomography(CT) or Magnetic Resonance Imaging(MRI) according to, which is not in irradiated area (only for expansion phase) 6. Acceptable hematologic status: Absolute neutrophil count(ANC)≥1.0×109/L; Platelet count(PLT)≥70×109/L; Hemoglobin(Hb)≥80 g/L; Total bilirubin(TBIL)≤1.5×Upper limit of normal value(ULN); Alanine aminotransferase(ALT)≤1.5×ULN; Aspartate aminotransferase(AST)≤1.5×ULN; Blood urea nitrogen(BUN)≤1×ULN; Creatinine(Cr)≤1×ULN; Left Ventricular Ejection Fractions(LVEF)≥50%; QTcF:male\<450 ms,female\<470 ms 7. The washout period from the last time accepting any anti-tumor treatment (including radiation therapy, chemotherapy, hormone therapy, surgery, or molecular targeted therapy) to participating in this test should be 4 weeks or more. 8. The last time participate in an investigational drug or device study should be more than one month prior to study entry. 9. Ability to understand the purposes and risks of the study 10. Availability of the signed informed consent forms (ICFs) approved by the investigator's Institutional Review Board (IRB)/Independent Ethics Committee (IEC) of the study site obtained before entering the study.

Exclusion criteria

1. Previously treated with PI3Kδ inhibitors and cause disease progression. 2. Any anti-tumor treatment, within 4 weeks prior to study entry. 3. There are third interstitial effusions (such as massive pleural effusion and ascites) which can not be controlled by drainage or other methods. 4. The dosage of steroid hormone (prednisone equivalent) was greater than 20mg/ days, and lasted for more than 14 days. 5. Medical history of difficulty in swallowing, malabsorption, or other chronic gastrointestinal disease, or conditions that may hamper compliance and/or absorption of the tested product. 6. During the study period, drugs that may prolong the QT (such as anti arrhythmic drugs) could not be interrupted. 7. Patients with central nervous system (CNS) involvement. 8. Allergy, or known to be allergic to the drug. 9. Active, uncontrolled bacterial, viral, or fungal infections, requiring systemic therapy(such as pneumonia). 10. Known infection with human immunodeficiency virus (HIV), hepatitis B virus(HBV), or hepatitis C virus (HCV). 11. History of immunodeficiency, including HIV positive test, other acquired or congenital immunodeficiency disorders, organ transplantation or allogeneic bone marrow transplantation. 12. Autologous hematopoietic stem cell transplantation was received within 90 days before the first dose treatment. 13. Has suffered from any heart disease, including: (1) angina pectoris; (2) medicated or clinically significant arrhythmia; (3) myocardial infarction; (4) heart failure; (5) any other heart disease judged by the researchers not suitable for the test. 14. The baseline pregnancy test was positive in pregnant women, lactating women or fertile women. 15. According to the judgement of the researcher, there are concomitant diseases that seriously endanger the safety of patients or affect the completion of the study (such as severe hypertension, diabetes, thyroid diseases, etc.). 16. Receiving granulocyte colony-stimulating factor(GCSF) or blood transfusion within 7 days before screening. 17. Patients suffering from other primary malignant tumors in the past 5 years.

Design outcomes

Primary

MeasureTime frameDescription
Dose limited toxicities evaluated with NCI-CTC AE v4.0within 28 days after the first doseIncidence of dose limited toxicities and associated dose of YY-20394
Adverse events evaluated by NCI CTCAE v4.0from the first dose to within 30 days after the last doseIncidence of adverse events and associated dose of YY-20394

Secondary

MeasureTime frameDescription
Plasma concentration of YY-20394within 56 days after the first doseThis composite endpoint will measure the plasma concentration of YY-20394.
Objective response ratewithin 30 days after the last dosethe proportion of subjects who have a Complete Response or Partial Response
Disease control ratewithin 30 days after the last dosethe proportion of subjects who have a Complete Response or Partial Response

Countries

China

Contacts

Primary ContactHanying Bao, MD,PhD
hybao@yl-pharma.com86 21-51370693
Backup ContactYuanyuan Xu, M.S.
yyxu@yl-pharma.com86 21-51320088

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026