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A Study to Investigate the Efficacy and Safety of MS-553 in CLL/SLL

S

Shenzhen MingSight Relin Pharmaceuticals

Status and phase

Terminated
Phase 2
Phase 1

Conditions

Lymphocytic Leukemia
Small Lymphocytic Lymphoma

Treatments

Drug: MS-553

Study type

Interventional

Funder types

Industry

Identifiers

NCT05272813
2020-001-CN

Details and patient eligibility

About

This is a Phase I/II, single arm, multi-center, open-label clinical trial of MS-553 in patients with CLL/SLL whose disease relapsed after or was refractory to at lease 1 prior therapy (chemotherapy and/or targeted drug therapy, which must include BTK inhibitor therapy) and who are indicated for treatment per IWCLL2018.

Enrollment

13 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Age 18 years or older, male or female.
  • Diagnosis of CLL/SLL per IWCLL2018 criteria.
  • Patients with relapsed or refractory CLL/SLL who have failed at least 1 prior therapy (chemotherapy and/or targeted drug therapy, which must include BTK inhibitor therapy), are indicated for treatment per IWCLL2018.
  • Measurable lesions detected by contrast-enhanced computed tomography (CT): at least one lymph node with a maximum axis of more than 1.5 cm and one measurable vertical dimension.
  • WHO/ECOG performance status of 0 to 2.
  • Patients with an estimated survival of more than 3 months.

Exclusion criteria

  • Biopsy-proven and pathologically confirmed current or past transformation to Richter's syndrome.

  • Patients with active and uncontrolled autoimmune cytopenia, including autoimmune hemolytic anemia and idiopathic thrombocytopenic purpura.

  • Patients who have received any of the following treatments within 14 days prior to the first dose:

    • Major surgery;

    • Glucocorticoids (at a dose equal to or greater than 20 mg/day prednisone or equivalent), unless used by inhalation, topical or intraarticular route, or unless necessary for premedication before and after iodinated contrast dye. After discussion with the Sponsor, steroid therapy at high doses for an extended period may be allowed under the following circumstances:

      1. Treatment of autoimmune hemolysis or autoimmune thrombocytopenia associated with CLL/SLL;
      2. Short-term (within 14 days) use to treat inactive infections of diseases unrelated to CLL/SLL (e.g. arthritis, asthma), which results in acute exacerbation, including steroid dose modifications required for adrenal insufficiency;
    • Cytotoxic chemotherapy or biologic therapy, excepting BCR pathway kinase inhibitors for which a washout of 24 hours prior to the first dose is required.

  • Toxicity from prior anti-tumor therapy (chemotherapy, radiotherapy, or biotherapy) did not restore to ≤ Grade 1 (except for alopecia); atrial fibrillation from prior treatment with BTK inhibitors did not restore to ≤ Grade 2.

  • Central nervous system (CNS) leukemia or lymphoma, including a history of asymptomatic, previously treated CNS disease.

Trial design

Primary purpose

Treatment

Allocation

Non-Randomized

Interventional model

Sequential Assignment

Masking

Single Blind

13 participants in 4 patient groups

MS-553 Low Dose
Experimental group
Description:
MS-553 Low Dose PO BID
Treatment:
Drug: MS-553
MS-553 Mid Dose-1
Experimental group
Description:
MS-553 Mid Dose-1 PO BID
Treatment:
Drug: MS-553
MS-553 Mid Dose-2
Experimental group
Description:
MS-553 Mid Dose-2 PO BID
Treatment:
Drug: MS-553
MS-553 High Dose
Experimental group
Description:
MS-553 High Dose PO BID
Treatment:
Drug: MS-553

Trial contacts and locations

1

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Central trial contact

Ling Yang

Data sourced from clinicaltrials.gov

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