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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/NCT03287427




Registration number
NCT03287427
Ethics application status
Date submitted
12/09/2017
Date registered
19/09/2017
Date last updated
15/02/2023

Titles & IDs
Public title
MYPHISMO: MYB and PD-1 Immunotherapies Against Multiple Oncologies Trial
Scientific title
First-in-human Phase I Clinical Trial of a Combined Immune Modulatory Approach Using TetMYB Vaccine and Anti-PD1 Antibody in Patients With Advanced Solid Cancer Including Colorectal or Adenoid Cystic Carcinoma.
Secondary ID [1] 0 0
MYPHISMO
Universal Trial Number (UTN)
Trial acronym
MYPHISMO
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Colorectal Cancer 0 0
Adenoid Cystic Carcinoma 0 0
Condition category
Condition code
Cancer 0 0 0 0
Non melanoma skin cancer
Cancer 0 0 0 0
Kidney

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - TetMYB Vaccine
Treatment: Drugs - BGB-A317

Experimental: TetMYB Vaccine & BGB-A317 -


Treatment: Drugs: TetMYB Vaccine
Weekly intra-dermal injections of either 0.1mg, 0.5mg or 1.0mg on day 1 for week 1 to week 6.

Treatment: Drugs: BGB-A317
3 weekly IV injections of 200mg commencing from Week 4.
Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
The incidence of Grade 3 or 4 or greater adverse events (AEs) according to CTCAE v4.03 criteria and clinical laboratory abnormalities defined as dose-limiting toxicities (DLTs).
Timepoint [1] 0 0
End of Week 6
Secondary outcome [1] 0 0
Tolerability of the treatment as defined as receiving a minimum of 4 doses of TetMYB Vaccine within 6 weeks of starting treatment.
Timepoint [1] 0 0
End of Week 6
Secondary outcome [2] 0 0
The occurrence, type, severity and relationship to treatment of adverse events occurring after the first 6 weeks of treatment, described according to CTCAE v4.03 criteria.
Timepoint [2] 0 0
Week 7 and through study completion, an average of 12 months.
Secondary outcome [3] 0 0
The objective response as defined by the achievement of a complete (irCR) or partial (irPR) response, based on irRECIST criteria within 12 weeks of first vaccination.
Timepoint [3] 0 0
End of Week 12
Secondary outcome [4] 0 0
Clinical benefit as defined by wither the achievement of a complete (irCR) or partial (irPR) response as per irRECIST criteria; or the maintenance of stable disease (irSD), as per irRECIST criteria, at 12 weeks after commencement of treatment.
Timepoint [4] 0 0
End of Week 12.
Secondary outcome [5] 0 0
Progression free survival (PFS) as defined as the time from first vaccination to the earliest of date of disease progression as assessed by irRECIST or death from any cause.
Timepoint [5] 0 0
From the date of treatment commencement to until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 48 months.
Secondary outcome [6] 0 0
Overall survival (OS) as defined as the time from first vaccination to date of death from any cause.
Timepoint [6] 0 0
From the date of treatment commencement to the date of death from any cause, whichever came first, assessed up to 48 months..
Secondary outcome [7] 0 0
To demonstrate a MYB-specific immune response through epitope stimulation of PBMCs and assessment with CBA, FACS for IFN-? and TNF-a production, and via the evaluation of changes in tumour microenvironment in pre- and post-treatment biopsies.
Timepoint [7] 0 0
Through study completion, an average of 48 months.
Secondary outcome [8] 0 0
To assess metabolic response, as assessed by FDG-PET scan.
Timepoint [8] 0 0
Week 4, at the time of disease progression and 4 weeks after treatment is ceased.
Secondary outcome [9] 0 0
The objective immune response as defined by achievement of a complete or partial response (irCR or irPR), based on irRECIST criteria.
Timepoint [9] 0 0
End of week 12.

Eligibility
Key inclusion criteria
1. Male or female aged 18 years or older at screening.

2. Patients with advanced/metastatic colorectal or adenoid cystic carcinoma; for which no
effective standard therapy is available.

3. Patient has been fully informed about the study and is willing to participate in the
study, and has provided written informed consent prior to any trial specific screening
procedures.

4. Measurable disease as per irRECIST criteria 1.1.

5. Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1.

6. Life expectancy greater than 3 months.

7. Adequate haematological, renal and hepatic functions as defined by:

- Neutrophil count >1.5 x 109/L

- Platelets >100 x 109/L

- Hb >100 g/L (Patients can be transfused in the lead-in period, providing they do
not have active bleeding or require regular transfusions)

- Total bilirubin <1.5x upper limit of normal (ULN)

- ALT and AST <2.5x ULN (<5.0x ULN for patients with hepatic metastasis)

- Serum creatinine <1.5x ULN or Creatinine Clearance >50 mL/min (Cockcroft-Gault or
Nuclear GFR method)

8. Willing to provide study specific pre-treatment biopsy of tumour and allow use of
archival tumour biopsies. This is optional for adenoid cystic carcinoma patients.

9. Willing to consent to the use of their collected fresh tumour and archival FFPE
specimen and blood samples as detailed in the protocol for research including but not
limited to DNA, RNA and protein based biomarker detection.

10. Men and women of childbearing potential must use adequate contraception to prevent
pregnancy during the study. Adequate contraception is defined in the study as any
medically recommended method (or combination of methods) as per standard of care. An
adequate contraception includes hormonal contraception with implants or combined oral,
transdermal or injectable contraceptives, certain intrauterine devices, bilateral
tubal ligation, hysterectomy, or vasectomy of partner. Combinations of male condom
with either cap, diaphragm or sponge with spermicide are also considered acceptable.
For women of childbearing age, a negative pregnancy test needs to be confirmed before
inclusion.
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
1. Prior therapy with an anti-cancer vaccine; or anti-PD-1, anti-PD-L1, anti-PD-L2,
anti-CD137, anti-CTLA-4 antibody, or any other antibody or drug specifically targeting
T-cell co-stimulation or immune checkpoint pathways.

2. Chemotherapy, radioactive, biological cancer therapy, or tyrosine kinase inhibitor
(TKI) therapy, within four weeks prior to the first dose of study drug. All toxicities
attributed to prior anti-cancer therapy other than alopecia and fatigue must have
resolved to Grade 1 (NCI CTCAE v4.03) or baseline before administration of study drug.

3. Patient has had a prior malignancy active within the previous 3 years except for
locally curable cancers that have been apparently cured, such as basal or squamous
cell skin cancer, superficial bladder cancer or carcinoma in situ of the cervix or
breast, or localized prostate cancer.

4. Uncontrolled or significant intercurrent or recent illness including:

- Autoimmune disorder or history of autoimmune disease requiring immunosuppressive
treatment

- Cardiac disorder such as uncontrolled cardiac failure, unstable angina or non-ST
segment elevation myocardial infarction (NSTEMI) or myocardial infarction,
uncontrolled arrhythmia less than 3 months before screening

- Active or uncontrolled severe infection

5. History of solid organ transplantation or any condition requiring chronic treatment
with corticosteroids or other immunosuppressive agents.

6. Active coagulopathy/bleeding diathesis.

7. Cirrhosis, chronic active or untreated persistent hepatitis.

8. Active Hepatitis B: (defined as having a positive Hepatitis B surface antigen [HBsAg]
test at screening). Patients with past or resolved Hepatitis B infection (defined as
having a negative HBsAg test and a positive IgG antibody to Hepatitis B core antigen
[anti-HBc]) are eligible. Hepatitis B virus (HBV) DNA must be obtained in these
patients prior to Cycle 1, Day 1, and must demonstrate no active infection.

9. Active Hepatitis C: Patients positive for Hepatitis C virus (HCV) antibody are
eligible only if polymerase chain reaction (PCR) is negative for HCV RNA.

10. History of adverse reactions to peptide vaccines.

11. Patients who are pregnant or lactating.

12. Has received an investigational drug within 4 weeks prior to first dose of study drug,
or unless other has been agreed with the SSC.

13. Is currently receiving any agent with a known effect on the immune system, unless at
dose levels that is not immunosuppressive (e.g. prednisone at 10 mg/day or less or as
inhaled steroid at doses used for the treatment of asthma).

14. Known history of positive tests for HIV/AIDS.

15. Prior treated brain metastases must be without evidence of progression (through
magnetic resonance imaging [MRI] with contrast - preferred method or contrast enhanced
computed tomography [CT]) for at least 4 weeks and off immunosuppressive doses of
systemic medications, such as steroids (doses > 10 mg/day prednisone or equivalent)
for at least 2 weeks before study drug administration to be eligible

16. Receipt of live, attenuated vaccine within 28 days prior to the first dose of study
drug (Note: Subjects, if enrolled, should not receive live vaccine during the study
and 180 days after the last dose of study drug).

17. Any contraindication to receiving anti-PD-1 antibody (BGB-A317) or hypersensitivity to
the constituents of BGB-A317.

18. Has a history or current evidence of any condition, therapy, or laboratory abnormality
that might confound the results of the trial, interfere with the patient's
participation for the full duration of the trial, or is not in the best interest of
the patient to participate, in the opinion of the treating investigator.

19. Has known psychiatric or substance abuse disorders that would interfere with
cooperation with the requirements of the trial.

Study design
Purpose of the study
Treatment
Allocation to intervention
N/A
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Single group
Other design features
Phase
Phase 1
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
22/08/2018
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
14/12/2022
Sample size
Target
Accrual to date
Final
27
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment hospital [1] 0 0
Peter MacCallum Cancer Centre - Melbourne
Recruitment postcode(s) [1] 0 0
3000 - Melbourne

Funding & Sponsors
Primary sponsor type
Other
Name
Peter MacCallum Cancer Centre, Australia
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The purpose of this research study is to look at the effects, good or bad, of TetMYB Vaccine
in combination with BGB-A317 in patients with advanced or metastatic solid cancers (including
colorectal or adenoid cystic cancer).

The immune system is the body's defence against cancer, bacteria and viruses. TetMYB Vaccine
is a vaccine that helps your immune system to recognise the cancer cells. BGB-A317 is an
antibody (a type of protein made in the body in response to a foreign substance) that helps
to stop or reverse the growth of tumour cells.

Up to 32 participants may take part in this study, which is divided into 2 stages: dose
escalation (different doses will be tested in small groups of patients) and dose expansion
(one or more doses may be tested in a larger group of patients). Which stage you participate
in will depend on which is open at the time. Your study doctor will discuss this with you.

During dose escalation, study patients will receive increasing doses of the TetMYB Vaccine,
starting at a low dose. During dose expansion, study patients will receive the dose
determined as safe in dose escalation.

The study design is as follows:

In the dose finding stage, the first patient of each dose level will receive 6 consecutive
weekly doses of intradermal TetMYB monotherapy for safety evaluation. If there are no
reported DLTs, the next 2 patients of the same dose level will also receive 6 consecutive
weekly intradermal doses of TetMYB, however with 3 weekly doses of BGB-A317 commencing with
the fourth TetMYB dose. The dosage of TetMYB are as follows:

- Dose level 1: 100 ug in 100 uL of sterile dH2O containing 5% DMSO

- Dose level 2: 500 ug in 100 uL of sterile dH2O containing 5% DMSO

- Dose level 3: 1000 ug in 100 uL of sterile dH2O containing 5% DMSO.

In the dose expansion stage, the dosage will be the maximum tolerated dose (MTD) identified
in the dose-finding stage and in combination with BGB-A317.

TetMYB Vaccine is being developed and manufactured by the Peter MacCallum Cancer Centre
according to Good Manufacturing Practice (GMP) and in accordance with guidelines provided by
the Food and Drug Administration (FDA) in the USA and Therapeutic Goods Administration (TGA)
in Australia. TetMYB Vaccine is an experimental treatment and is currently not approved for
use in any country. This means that it is not an approved treatment for cancer in Australia.
This will be the first time that the TetMYB vaccine is given to humans.

BGB-A317 is being developed by BeiGene, a biopharmaceutical company. BGB-A317 is an
experimental treatment. This means that it is not an approved treatment for solid cancers in
Australia.
Trial website
https://clinicaltrials.gov/ct2/show/NCT03287427
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Jayesh Desai
Address 0 0
Peter MacCallum Cancer Centre, Australia
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/ct2/show/NCT03287427