Clinical study of ST101 in Patients with Advanced Cancer

Phase 1

• Conditions: Castrate-Resistant Prostate Cancer, HR Positive local advanced/metastatic Breast Cancer, Glioblastoma, and Melanoma; MedDRA version: 20.0Level: PTClassification code 10018337Term: Glioblastoma multiformeSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps); MedDRA version: 21.1Level: LLTClassification code 10076506Term: Castration-resistant prostate cancerSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps); MedDRA version: 21.1Level: PTClassification code 10025650Term: Malignant melanomaSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps); MedDRA version: 21.1Level: LLTClassification code 10065147Term: Malignant solid tumorSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps); MedDRA version: 20.1Level: PTClassification code 10055113Term: Breast cancer metastaticSystem Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps); Therapeutic area: Diseases [C] - Cancer [C04]

• Registration Number: EUCTR2019-004213-13-GB
• Lead Sponsor: Sapience Therapeutics, Inc.

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2020-06-23
• Last Update Posted: 10 August 2020

Recruitment & Eligibility

• Status: Authorised-recruitment may be ongoing or finished
• Sex: All
• Target Recruitment: 156

Inclusion Criteria

1.Able and willing to sign ICF and comply with the protocol and the restrictions and assessments therein.
2.Male or female =18 years of age.
3.ECOG performance status 0-1.
4.Must have a locally advanced or metastatic inoperable tumor as follows:
a.For the dose escalation/regimen exploration phase: melanoma, carcinoma, or sarcoma
b.For the expansion phase: HRpos LA/MBC, melanoma, GBM, CRPC
5.Agrees to provide a newly obtained biopsy of an accessible lesion (if they can be biopsied based on the investigator's assessment) prior to the start of study treatment, and to repeat biopsy once during study treatment. Tissue obtained for the biopsy must not be previously irradiated (unless progressing following irradiation), but a new or progressing lesion in the radiation field is acceptable. Archived biopsies are acceptable for GBM patients.
6.In the investigator's opinion, the patient may not derive clinical benefit from, or is ineligible for, a particular form of standard therapy on medical grounds, or the patient failed or did not tolerate one or more of other anti-cancer therapies:
a.For the dose escalation/regimen exploration phase:
i. Refractory or intolerant to all available standard-of-care therapies
ii.Up to 3 previous lines of systemic anticancer therapies for metastatic disease are allowed.
b.For the expansion phase:
i.HRpos LA/MBC must have progressed after prior 1-2 hormone-based therapies. Previous treatment with CDK4/6 inhibitor, mTOR inhibitor or chemotherapy is allowed as monotherapy or in combination
ii.Melanoma that has progressed after or on treatment with a CPI and have received 1-2 prior lines of therapy. Patients that have BRAF mutated disease should also have received one line of appropriate targeted therapy
iii.Primary (de novo) GBM that has recurred or progressed (per modified RANO criteria) after 1 standard treatment regimen (surgery, radiotherapy, and temozolomide therapy). Patients that undergo tumor treating fields as an adjuvant to first line therapy are allowed.
iv.CRPC that has progressed after previous treatment with taxanes, abiraterone and enzalutamide unless contraindicated or the patients were intolerant to them.
7.Evaluable disease per RECIST 1.1, modified RANO or PCWG3 with at least one target lesion
8.Disease that progressed on, or is non-responsive to, the previous line of therapy per RECIST 1.1, modified RANO or PCWG3.
9.If not menopausal or surgically sterile, willing to practice at least one of the following highly effective methods of birth control for at least a (partner’s) menstrual cycle before and for four months after ST101 administration: (1) Total abstinence from sexual intercourse with a member of the opposite sex; (2) Sexual intercourse with vasectomized male/sterilized female partner; (3) Combined (estrogen and progestogen containing) or progestogen-only hormonal contraception associated with inhibition of ovulation (oral, parenteral, transvaginal or transdermal) for at least 3 consecutive months prior to investigational product administration; (4) Other acceptable forms of birth control (condoms, contraceptive sponge, diaphragm or vaginal ring with spermicide or cream); (5) Use of an intrauterine contraceptive device.
10.All previous therapy-related AEs should have resolved to grade 1 or baseline value with the exception of alopecia. Levothyroxine is allowed for patients that previously received a CPIs and experienced thyroid dysfunctions.
11.Adequate organ

Exclusion Criteria

1.Use of small molecule or tyrosine kinase inhibitor within 2 weeks or 5 half-lives (whichever is shorter) prior to the first dose of study drug; chemotherapy, investigational drug or biological cancer therapy within 3 weeks prior to the first dose of study therapy; nitrosourea or radioisotope within 6 weeks prior to first dose.
2.Known hypersensitivity to ST101 or any of its excipients.
3.Baseline QTc > 480 msec using Fredericia’s formula.
4.Symptomatic ascites or pleural effusion. A patient who is clinically stable following treatment for these conditions (including therapeutic thoraco- or paracentesis) is eligible.
5.Known active CNS metastases and/or carcinomatous meningitis. Patients with previously treated brain metastases may participate provided they are clinically stable for at least 4 weeks prior to study entry, have no evidence of new or enlarging brain metastases, and are off steroids for at least 14 days prior to first dose of study drug. This criterion does not apply to patients on the GBM cohort.
6.Presence of any other active malignancy requiring systemic therapy other than the disease under study.
7.Active infection with HIV and CD4+ T-cell count <350/µL. Patients not on established ART for at least four weeks and having a detectable HIV viral load.
8.Active infection with hepatitis B (surface antigen); or infection with hepatitis C, defined by a detectable viral load. Testing is not required for eligibility.
9.Active autoimmune disease or a documented history of autoimmune disease or syndrome that requires systemic steroids or immunosuppressive agents. Vitiligo or resolved childhood asthma/atopy are exceptions to this rule. Patients requiring intermittent use of bronchodilators or topical steroids would not be excluded from the study. Patients with hypothyroidism that is stable on hormone replacement will not be excluded from the study.
10.Use of systemic corticosteroids to treat inflammatory or autoimmune symptoms within 15 days or other immunosuppressive drugs within 30 days prior to the start of the study. Inhaled and topical corticosteroids are permitted. Up to 10 mg/day prednisone or equivalent is permitted as replacement therapy for adrenal insufficiency only.
11.Active infection requiring systemic therapy.
12.Active immune thrombocytopenic purpura or other chronic thrombocytopenic condition.
13.Therapeutic anticoagulation that cannot be interrupted for a biopsy or had a thromboembolic event within the last 6 months.
14.History or clinical evidence of any surgical or medical condition which the investigator judges as likely to interfere with the results of the study or pose an additional risk in participating, or makes the patient unlikely to comply with the study related visits and assessments particularly any pre-existing condition that would put the patient at additional risk should they experience an infusion-related reaction, e.g., rapidly progressive or uncontrolled disease involving a major organ system—vascular, cardiac, pulmonary, gastrointestinal, gynecologic, hematologic, neurologic, neoplastic, renal, endocrine, or an immunodeficiency
15.Unable to comply with the visits and requirements of the protocol due to psychiatric condition or substance abuse. Pregnant or breastfeeding or planning to conceive or father children within the projected duration of the study.
16.Exclusion criteria for GBM cohort
a.Any prior therapy for GBM other than that which is considered SOC for primary GBM,

Study & Design

• Study Type: Interventional clinical trial of medicinal product
• Study Design: Not specified