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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT05756907
Registration number
NCT05756907
Ethics application status
Date submitted
23/02/2023
Date registered
7/03/2023
Date last updated
23/10/2023
Titles & IDs
Public title
Combination of SON-1010 (IL12-FHAB) and Atezolizumab in Patients With Platinum-resistant Ovarian Cancer
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Scientific title
A Proof-of-Concept Study to Assess the Combination of SON-1010 (IL12-FHAB) and Atezolizumab in Patients With Platinum-resistant Ovarian Cancer
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Secondary ID [1]
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SB221
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Advanced Solid Tumor
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Platinum-resistant Ovarian Cancer
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Condition category
Condition code
Cancer
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Ovarian and primary peritoneal
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Other interventions - SON-1010
Experimental: Dose Level 1 - SON-1010 Dose Level 1 + Atezolizumab
Experimental: Dose Level 2 - SON-1010 Dose Level 2 + Atezolizumab
Experimental: Dose Level 3 - SON-1010 Dose Level 3 + Atezolizumab
Experimental: Dose Level 4 - SON-1010 Dose Level 4 + Atezolizumab
Experimental: Dose Level 5 - SON-1010 Dose Level 5 + Atezolizumab
Experimental: RP2D Expansion in Patients with Platinum-resistant Ovarian Cancer - RP2D Dose of SON-1010 + Atezolizumab
Experimental: Randomized Arm #1 in Patients with Platinum-resistant Ovarian Cancer - SON-1010 @ RP2D Alone
Experimental: Randomized Arm #2 in Patients with Platinum-resistant Ovarian Cancer - SON-1010 @ RP2D + Atezolizumab
No Intervention: Randomized Arm #3 in Patients with Platinum-resistant Ovarian Cancer - Standard of Care
Other interventions: SON-1010
SON-1010 +/- Atezolizumab
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Intervention code [1]
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Other interventions
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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To evaluate the safety and tolerability of SON-1010 in combination with Atezolizumab
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Assessment method [1]
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Number of participants with treatment-related adverse events as assessed by CTCAE v5.0
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Timepoint [1]
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Through study completion, an average of 1 year
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Primary outcome [2]
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To establish the maximum tolerated dose (MTD) of SON-1010 in combination with Atezolizumab
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Assessment method [2]
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Incidence of dose-limiting toxicities (DLTs)
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Timepoint [2]
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Through study completion, an average of 1 year
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Secondary outcome [1]
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To assess the anti-tumor activity of SON-1010 dosed with atezolizumab in Platinum-resistant Ovarian Cancer (PROC), compared with SON-1010 alone or SOC therapy
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Assessment method [1]
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Progression-free survival (PFS)
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Timepoint [1]
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Through study completion, an average of 1 year
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Eligibility
Key inclusion criteria
1. Age =18 years at the time of informed consent
2. Part 1: Must have histologically or cytologically verified solid tumors and patients
must have locally advanced or metastatic disease. Must have been treated with standard
of care therapies for their disease and have no standard alternative treatment options
that are deemed by the treating physician to offer reasonable or potentially better
benefit. Patients in cohorts C4, C5, and the RP2D expansion group must have PROC.
Part 2: Must have PROC, defined as recurrence of OC within 6-months (180-days) after
the last dose of a platinum-containing regimen), including epithelial, fallopian tube,
or 1° peritoneal carcinoma. Patients may have had one or more alternative regimen(s)
before this trial, including maintenance therapy between consecutive lines of therapy.
Evidence of progression and the timing of progression or reoccurrence must refer to
new measurable disease by RECIST v1.1 or evaluable (non-measurable) disease. The
latter is defined as not having measurable disease but has pre-study baseline values
of CA125 at least 2 x ULN, with ascites and/or pleural effusion attributed to tumor OR
with solid and/or cystic abnormalities on radiographic imaging consistent with
recurrent disease that do not meet RECIST 1.1 definitions for target lesions.
3. Eastern Cooperative Oncology Group (ECOG) performance status = 1.
4. Adequate organ and bone marrow function, in the absence of growth factors.
5. Females of childbearing potential, or < 1-year postmenopause who are not permanently
sterile, must have a negative serum pregnancy test (beta-human chorionic gonadotropin
[ß-HCG]) at baseline, and agree to use 2 highly effective methods of birth control
during the study and for 30 days after the last dose of study drug. Females who are
not of childbearing potential (have had a tubal ligation, hysterectomy, or bilateral
oophorectomy, or are = 1-year postmenopause) or have a partner who has had a vasectomy
do not need to use contraception. A follicle stimulating hormone (FSH) level > 35 IU/L
at screening will be performed to confirm status. Refer to Section 8.2.7 for further
detail.
6. Males and their female partners must use a highly effective method of birth control if
female partner(s) is of childbearing potential and must not donate sperm during the
study and for 90 days after the last dose of study drug.
7. Willing and able to provide signed informed consent, which includes compliance with
the requirements and restrictions listed in the informed consent form (ICF) and in
this protocol.
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
1. Known history of allergy to any component of study drug or a history of severe
allergic/anaphylactic reaction.
2. Hospitalization for subacute bowel obstruction, other complications of the cancer, or
any major surgery within 28 days prior to C1D1. Elective surgery is allowed if
recovered.
3. Infection with HIV-1 or HIV-2 or a history of Kaposi sarcoma and/or Multicentric
Castleman Disease.
4. Current active liver disease from any cause, including hepatitis A (hepatitis A virus
IgM positive), hepatitis B (hepatitis B virus [HBV] surface antigen positive), or
hepatitis C (hepatitis C virus [HCV] antibody positive, confirmed by HCV ribonucleic
acid). Patients with HCV with undetectable virus after treatment are eligible (note:
patients must have completed curative anti-viral therapy at least 4 weeks prior to
screening). Patients with a prior history of HBV are eligible if quantitative PCR for
HBV DNA is negative (note: patients must have received HBV antiviral therapy for at
least 4 weeks prior to screening)
5. Pregnancy and/or lactation
6. Has received a live or live-attenuated vaccine within 30 days prior to the first dose
of study drug. (Note: Administration of killed vaccines and COVID-19 vaccines that are
not live or live-attenuated are allowed if > 14 days.)
7. History of any active infection requiring systemic antibiotics, antivirals or
antifungals, including COVID-19, within 14 days before the first dose of study drug.
8. Any acute noninfectious illness not resolved by14 days before day 1.
9. History of or known or suspected autoimmune disease (exception(s): patients with
vitiligo, Type I diabetes, resolved childhood atopic dermatitis, hypothyroidism, or
hyperthyroidism that is clinically euthyroid at Screening are allowed). Other
exceptions may be allowed following discussion with the Sponsor Medical Monitor for
patients who have not received treatment for their autoimmune disorder in the past 3
years
10. Known active central nervous system 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 and have no evidence of
new or enlarging brain metastases.
11. Unresolved toxicities from prior anticancer therapy, defined as not resolved to
baseline or to Grade 1 (NCI 2017), except for alopecia, peripheral neuropathy, and
hypothyroidism secondary to prior therapy if currently being treated and clinically
euthyroid.
12. Receipt of any investigational agent or treatment within 21 days or 5 half-lives,
whichever is shorter, before the first dose of study drug.
13. Any prior immunotherapy or treatment with checkpoint inhibitors within a period of 5
half-lives (or 3 months, whichever is shorter) since the last dose of the therapy.
14. Use of systemic steroids > 10 mg/day prednisone (or equivalent) within 10 days of
enrollment, except for local (topical, nasal, or inhaled) steroid use. Limited doses
of systemic steroids (e.g., in patients with exacerbation of reactive airway disease)
must have completed at least 10 days before enrollment. Steroid use to prevent IV
contrast allergic reaction or anaphylaxis in patients who have known contrast
allergies is allowed at any time before enrollment.
15. Active known second malignancy with the exception of any of the following:
- Adequately treated basal cell carcinoma, squamous cell carcinoma of the skin, or
in situ cervical cancer
- Adequately treated Stage I cancer from which the patient is currently in
remission and has been in remission for = 2 years;
- Low-risk prostate cancer with Gleason score < 7 and prostate-specific antigen <
10 ng/mL; or
- Any other cancer from which the patient has been disease-free for = 2 years.
16. Use of biotin (i.e., vitamin B7) or supplements containing biotin higher than the
daily adequate intake of 30 µg (FDA 2019) (Note: Patients who switch from a high dose
to a dose of 30 µg/day or less are eligible for study entry)
17. Any of the following within 6 months before Baseline Day 1:
- Myocardial infarction;
- Unstable angina;
- Unstable symptomatic ischemic heart disease;
- New York Heart Association (NYHA) class III or IV heart failure;
- Thromboembolic events (e.g., deep vein thrombosis, pulmonary embolism, or
symptomatic cerebrovascular events);
- Any other significant cardiac condition (e.g., pericardial effusion, restrictive
cardiomyopathy, severe untreated valvular stenosis, long QTc syndrome, or severe
congenital heart disease).
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Other
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Other design features
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Phase
Phase 1/Phase 2
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
15/09/2023
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
30/05/2025
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Actual
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Sample size
Target
165
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
NSW,SA
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Recruitment hospital [1]
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The Border Cancer Hospital - Albury
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Recruitment hospital [2]
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Blacktown Mt Druitt Hospital - Blacktown
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Recruitment hospital [3]
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Ashford Cancer Centre Research - Kurralta Park
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Recruitment postcode(s) [1]
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2640 - Albury
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Recruitment postcode(s) [2]
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2148 - Blacktown
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Recruitment postcode(s) [3]
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5037 - Kurralta Park
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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California
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
Sonnet BioTherapeutics
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Address
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Country
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Other collaborator category [1]
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Commercial sector/Industry
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Name [1]
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Hoffmann-La Roche
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
This is a Phase 1b/2a, open-label, adaptive-design outpatient study to assess the safety,
tolerability, and PK/PD of SON-1010 in combination with atezolizumab administered to patients
with advanced solid tumors (Part 1) and patients with Platinum-resistant Ovarian Cancer (Part
2)
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Trial website
https://clinicaltrials.gov/ct2/show/NCT05756907
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Richard T Kenney, MD
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Address
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Sonnet BioTherapeutics
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Manuel DaFonseca
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Address
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Country
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Phone
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1-609-451-3900
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT05756907
Download to PDF