Trial Review

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Trial registered on ANZCTR


Registration number
ACTRN12613001061729
Ethics application status
Approved
Date submitted
23/08/2013
Date registered
23/09/2013
Date last updated
2/11/2023
Date data sharing statement initially provided
2/11/2023
Date results provided
2/11/2023
Type of registration
Retrospectively registered

Titles & IDs
Public title
A Phase 1, Open-Label, Dose Escalation, Safety, Pharmacokinetic, and Pharmacodynamic Study of Intravenously Administered CX-5461 in Patients with Advanced Haematologic Malignancies
Scientific title
A Phase 1, Open-Label, Dose Escalation, Safety, Pharmacokinetic, and Pharmacodynamic Study of Intravenously Administered CX-5461 in Patients with Advanced Haematologic Malignancies
Secondary ID [1] 282946 0
Peter MacCallum Cancer Centre Protocol No. PMCC 12/79
Universal Trial Number (UTN)
Trial acronym
CX-5461
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Any advanced Haematologic Malignancy 289770 0
Condition category
Condition code
Cancer 290113 290113 0 0
Myeloma
Cancer 290116 290116 0 0
Lymphoma (non Hodgkin's lymphoma) - High grade lymphoma
Cancer 290117 290117 0 0
Leukaemia - Acute leukaemia
Cancer 328671 328671 0 0
Leukaemia - Chronic leukaemia

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
This is a Phase I study of CX-5461, an RNA polymerase I inhibitor. 40 patients with histologically confirmed relapsed or refractory advanced haematologic malignancies, who have progressed following at least one prior treatment regimen, will be enrolled in the study. CX-5461 will be administered by intravenous infusion over 1 hour on day 1 and day 8 every 28 days. Four dose levels are planned: 70 mg/m2, 100 mg/m2, 150 mg/m2, 220 mg/m2, per dose. Patients will be assigned to a dose level in the order of study entry. Patients may continue to receive an infusion of CX-5461 every 3 weeks until disease progression, occurance of unacceptable toxicities, or the decision of the patient and/or Investigator
Intervention code [1] 287653 0
Treatment: Drugs
Comparator / control treatment
No Comparator
Control group
Uncontrolled

Outcomes
Primary outcome [1] 290147 0
To determine the maximum tolerated dose (MTD) and dose-limiting toxicities (DLTs) of intravenously administered CX-5461 when used intravenously in haematologic cancers. DLTs will be assessed by physical exam and clinical laboratory blood tests.
Timepoint [1] 290147 0
Dose limiting toxicities will be assessed during the first cycle only, on Days 1, 2, 3, 4, 8, 15 and at the end of the 3 week cycle.
Secondary outcome [1] 304017 0
To establish the safety profile of CX-5461 at the MTD. Adverse events (e.g. fatigue, infections and bleeding) are graded using the Common Terminology Criteria for Adverse Events (CTCAE), Version 4. Comparison of vital sign measurements, physical examination assessments, Eastern Cooperative Oncology Group (ECOG) performance assessments, electrocardiogram (ECG), clinical laboratory tests for haematology, coagulation and biochemistry from baseline to study completion. Possible side effects may vary depending on the dose received but are expected to be reversible.
Timepoint [1] 304017 0
Adverse events will be monitored for the duration of study (Cycle 1 will be assessed at days 1, 2, 3, 4, 8, 15 and end of cycle; subsequent cycles will be assessed at day 1 of each cycle and at the end of study treatment)
Secondary outcome [2] 304018 0
To establish the pharmacokinetic (PK) profile of CX-5461.
Timepoint [2] 304018 0
Blood samples will be collected for PK analysis on Days 1, 2, 3 and 4 of the 1st treatment cycle.
Secondary outcome [3] 304020 0
To observe patients for preliminary antitumor activity of CX-5461.
Timepoint [3] 304020 0
Response will be measured on D14 to D18 of Cycle 2, and alternate cycles therafter, using clinical assessments, imaging and laboratory tests for the duration of the study.
Secondary outcome [4] 304021 0
To evaluate the mechanism of action of CX-5461 in haematologic cancers and to identify predictive biomarkers of efficacy in human haematologic cancers.
Timepoint [4] 304021 0
Blood and tissue samples will be collected at scheduled timepoints for the duration of the study. The scheduled timepoints are D1 and D2 of Cycle 1, D1 of Cycle 2 and each subsequent cycle, during week 3 of Cycle 2 and every subsequent alternate cycle.

Eligibility
Key inclusion criteria
Patients with any histologically confirmed relapsed or refractory advanced haematologic malignancies for which no effective standard therapies are available. These patients must have progressed following at least one prior treatment regimen. There must be evidence of measurable disease.
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Pregnant or lactating women, uncontrolled intercurrent illness, history of other malignancy within 2 years of study entry (excluding treated nonmelanotic skin cancer and in-situ carcinoma), known CNS involvement unless previously treated and well controlled for a period of >=3 months and does not require the use of steroids.

Study design
Purpose of the study
Treatment
Allocation to intervention
Non-randomised trial
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
Safety
Statistical methods / analysis

Recruitment
Recruitment status
Stopped early
Data analysis
Data analysis is complete
Reason for early stopping/withdrawal
Participant recruitment difficulties
Date of first participant enrolment
Anticipated
22/07/2013
Actual
22/07/2013
Date of last participant enrolment
Anticipated
18/07/2016
Actual
28/02/2023
Date of last data collection
Anticipated
Actual
16/06/2023
Sample size
Target
40
Accrual to date
Final
20
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment hospital [1] 1385 0
Peter MacCallum Cancer Institute - East Melbourne
Recruitment postcode(s) [1] 41628 0
3000 - Melbourne

Funding & Sponsors
Funding source category [1] 287725 0
Government body
Name [1] 287725 0
National Health and Medical Research Council
Country [1] 287725 0
Australia
Primary sponsor type
Hospital
Name
Peter MacCallum Cancer Centre
Address
305 Grattan Street
Melbourne, VIC, 3000
Country
Australia
Secondary sponsor category [1] 286455 0
None
Name [1] 286455 0
Address [1] 286455 0
Country [1] 286455 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 289684 0
Peter MacCallum Cancer Centre Ethics Committee
Ethics committee address [1] 289684 0
Ethics committee country [1] 289684 0
Australia
Date submitted for ethics approval [1] 289684 0
Approval date [1] 289684 0
24/01/2013
Ethics approval number [1] 289684 0
12/79

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 41910 0
Dr Amit Khot
Address 41910 0
Peter MacCallum Cancer Centre, 305 Grattan St Melbourne VIC 3000
Country 41910 0
Australia
Phone 41910 0
+61 3 85597830
Fax 41910 0
Email 41910 0
Amit.Khot@petermac.org
Contact person for public queries
Name 41911 0
Stella Vlachos
Address 41911 0
Peter MacCallum Cancer Centre, 305 Grattan St Melbourne VIC 3000
Country 41911 0
Australia
Phone 41911 0
+61 3 85597532
Fax 41911 0
Email 41911 0
stella.vlachos@petermac.org
Contact person for scientific queries
Name 41912 0
Amit Khot
Address 41912 0
Peter MacCallum Cancer Centre, 305 Grattan St Melbourne VIC 3000
Country 41912 0
Australia
Phone 41912 0
+61 3 85595000
Fax 41912 0
Email 41912 0
Amit.Khot@petermac.org

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

Documents added manually
No documents have been uploaded by study researchers.

Documents added automatically
SourceTitleYear of PublicationDOI
Dimensions AICombination Therapy Targeting Ribosome Biogenesis and mRNA Translation Synergistically Extends Survival in MYC-Driven Lymphoma2016https://doi.org/10.1158/2159-8290.cd-14-0673
Dimensions AIGenetic requirement for Mycl and efficacy of RNA Pol I inhibition in mouse models of small cell lung cancer2016https://doi.org/10.1101/gad.279307.116
EmbaseAdvanced pancreatic ductal adenocarcinoma - Complexities of treatment and emerging therapeutic options.2017https://dx.doi.org/10.3748/wjg.v23.i13.2276
EmbaseInhibition of Pol I Transcription a New Chance in the Fight Against Cancer.2017https://dx.doi.org/10.1177/1533034617744955
Dimensions AIDysfunctional diversity of p53 proteins in adult acute myeloid leukemia: projections on diagnostic workup and therapy2017https://doi.org/10.1182/blood-2017-02-763086
Dimensions AIMYC-family protein overexpression and prominent nucleolar formation represent prognostic indicators and potential therapeutic targets for aggressive high-MKI neuroblastomas: a report from the children’s oncology group2017https://doi.org/10.18632/oncotarget.23740
Dimensions AISelective inhibition of RNA polymerase I transcription as a potential approach to treat African trypanosomiasis2017https://doi.org/10.1371/journal.pntd.0005432
EmbaseMYC inhibitors in multiple myeloma.2021https://dx.doi.org/10.20517/cdr.2021.55
Dimensions AICX-5461 Enhances the Efficacy of APR-246 via Induction of DNA Damage and Replication Stress in Triple-Negative Breast Cancer2021https://doi.org/10.3390/ijms22115782
Dimensions AIDMPC/Chol liposomal copper CX5461 is therapeutically superior to a DSPC/Chol formulation2022https://doi.org/10.1016/j.jconrel.2022.03.004
EmbaseG-quadruplex ligands as therapeutic agents against cancer, neurological disorders and viral infections.2023https://dx.doi.org/10.4155/fmc-2023-0202
Dimensions AIPlant exosomes fused with engineered mesenchymal stem cell-derived nanovesicles for synergistic therapy of autoimmune skin disorders2023https://doi.org/10.1002/jev2.12361
N.B. These documents automatically identified may not have been verified by the study sponsor.