Trial Outcomes & Findings for Safety, PK and Efficacy of NOX66 as a Monotherapy and Combined With Carboplatin in Refractory Solid Tumours (NCT NCT02941523)

NCT ID: NCT02941523

Last Updated: 2021-06-02

Results Overview

Dose limiting toxicity during monotherapy and combination therapy defined as any Grade 3 or more toxicity (by National Cancer Institute Common Terminology Criteria for Adverse Events \[NCI CTCAE version 4.03\]) (related to therapy) excluding Grade 3 or more neutropenia lasting greater than 5 days or thrombocytopenia associate with bleeding or Grade 4 thrombocytopenia.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

19 participants

Primary outcome timeframe

Up to 1 month for NOX66 monotherapy from enrollment and up to 7 months from start of NOX66 combination therapy

Results posted on

2021-06-02

Participant Flow

Participant milestones

Participant milestones
Measure
NOX66 400 mg
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Monotherapy
STARTED
8
8
Monotherapy
COMPLETED
8
7
Monotherapy
NOT COMPLETED
0
1
Carboplatin Combination Therapy
STARTED
8
10
Carboplatin Combination Therapy
COMPLETED
3
6
Carboplatin Combination Therapy
NOT COMPLETED
5
4

Reasons for withdrawal

Reasons for withdrawal
Measure
NOX66 400 mg
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Monotherapy
Withdrawal by Subject
0
1
Carboplatin Combination Therapy
Adverse Event
0
1
Carboplatin Combination Therapy
Death
1
2
Carboplatin Combination Therapy
Disease progression
2
0
Carboplatin Combination Therapy
Withdrawal by Subject
2
1

Baseline Characteristics

Safety, PK and Efficacy of NOX66 as a Monotherapy and Combined With Carboplatin in Refractory Solid Tumours

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
NOX66 400 mg
n=8 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg
n=11 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Total
n=19 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
6 Participants
n=5 Participants
8 Participants
n=7 Participants
14 Participants
n=5 Participants
Age, Categorical
>=65 years
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
Sex: Female, Male
Female
5 Participants
n=5 Participants
7 Participants
n=7 Participants
12 Participants
n=5 Participants
Sex: Female, Male
Male
3 Participants
n=5 Participants
4 Participants
n=7 Participants
7 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants
n=5 Participants
11 Participants
n=7 Participants
19 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
White
8 Participants
n=5 Participants
11 Participants
n=7 Participants
19 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
Georgia
8 participants
n=5 Participants
11 participants
n=7 Participants
19 participants
n=5 Participants

PRIMARY outcome

Timeframe: Up to 1 month for NOX66 monotherapy from enrollment and up to 7 months from start of NOX66 combination therapy

Population: All participants that received at least one dose of NOX66; 3 participants in 800 mg group did not receive monotherapy

Dose limiting toxicity during monotherapy and combination therapy defined as any Grade 3 or more toxicity (by National Cancer Institute Common Terminology Criteria for Adverse Events \[NCI CTCAE version 4.03\]) (related to therapy) excluding Grade 3 or more neutropenia lasting greater than 5 days or thrombocytopenia associate with bleeding or Grade 4 thrombocytopenia.

Outcome measures

Outcome measures
Measure
NOX66 400 mg Monotherapy
n=8 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 400 mg Combination Therapy
n=8 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg Monotherapy
n=7 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 800 mg Combination Therapy
n=10 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Number of Participants Who Experience Dose Limiting Toxicity (DLT) During NOX66 Monotherapy and During NOX66 Combination With Carboplatin
0 Participants
0 Participants
0 Participants
0 Participants

PRIMARY outcome

Timeframe: From enrollment through 30 days after the last cycle of therapy (8 months)

Population: Safety analyses set included all enrolled participants who received at least 1 dose of NOX66 or 1 dose NOX66 and carboplatin.

An AE was defined as any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of study drug, whether or not considered related to the study drug. A serious adverse event (SAE) was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Treatment-emergent are events between first dose of study drug that were absent before treatment or that worsened relative to pre-treatment state. Treatment-related are events which had causal relationship to study drug as assessed by the Investigator and were suspected to be reasonably related to the study drug.

Outcome measures

Outcome measures
Measure
NOX66 400 mg Monotherapy
n=8 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 400 mg Combination Therapy
n=8 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg Monotherapy
n=7 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 800 mg Combination Therapy
n=10 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Number of Participants With Treatment Emergent Adverse Events (TEAEs) and Serious Treatment Emergent Adverse Events (SAEs) Related to NOX66.
0 Participants
0 Participants
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Radiological evaluation at baseline and at 3 months and at 6 months

Population: Participants with measurable disease by RECIST v1.1 criteria at baseline and at 3 and 6 month post start of combination therapy.

Objective response rate defined as the percentage of participants achieving a complete response (CR) and or partial response (PR) after treatment with NOX66 and carboplatin therapy as assessed by Response Evaluation Criteria in solid tumors (RECIST) v1.1. CR defined as disappearance of all target and non-target lesions and reduction of any pathological lymph nodes (whether target or non-target) to \<10 mm in short axis; PR was defined by a 30% or more decrease in sum of longest diameter (SLD) of target lesions in reference to baseline. PR or better overall response assumes at a minimum incomplete response/stable disease (SD) for the evaluation of non-target lesions and no new lesions.

Outcome measures

Outcome measures
Measure
NOX66 400 mg Monotherapy
n=5 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 400 mg Combination Therapy
n=2 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg Monotherapy
n=9 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 800 mg Combination Therapy
n=6 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Objective Response Rate (ORR) at Cycle 3 and at Cycle 6 of Combination Therapy
Complete Response
0 Participants
0 Participants
0 Participants
0 Participants
Objective Response Rate (ORR) at Cycle 3 and at Cycle 6 of Combination Therapy
Partial Response
0 Participants
0 Participants
0 Participants
1 Participants

SECONDARY outcome

Timeframe: Radiological evaluation at baseline and at 3 months and at 6 months

Population: Participants with evaluable (measurable ) disease by RECIST v1.1 criteria at baseline and at 3 month and 6 month post combination therapy

Overall Clinical response rate defined as the percentage of participants who achieved complete response (CR) or partial response (PR) or stable disease (SD) as assessed by Response Evaluation Criteria In Solid Tumors (RECIST) criteria v1.1 after combination of NOX66 and carboplatin therapy. CR defined as disappearance of all target and non-target lesions and reduction of any pathological lymph nodes (whether target or non-target) to \<10 mm in short axis; PR was defined by a 30% or more decrease in sum of longest diameter (SLD) of target lesions in reference to baseline. Stable disease (SD)=Neither sufficient increase to qualify for PD nor sufficient shrinkage to qualify for PR. PD was defined as at least a 20 percent (%) increase in the SLD, taking as reference the smallest SLD recorded from baseline or the appearance of 1 or more new lesions.

Outcome measures

Outcome measures
Measure
NOX66 400 mg Monotherapy
n=5 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 400 mg Combination Therapy
n=2 Participants
NOX66 400 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
NOX66 800 mg Monotherapy
n=9 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1)
NOX66 800 mg Combination Therapy
n=6 Participants
NOX66 800 mg administered daily for 14 days in a 21-day monotherapy (period 1) followed by 28-day combination therapy cycle (period 2) whereby NOX66 administered on days 1 to 7 and IV carboplatin on Day 2 in each cycle with 2 carboplatin doses low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Overall Clinical Response Rate at Cycle 3 and at Cycle 6 of Combination Therapy
4 Participants
1 Participants
7 Participants
5 Participants

Adverse Events

Monotherapy Phase, NOX66 400 mg

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Monotherapy Phase, NOX66 800 mg

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Combination Phase, NOX66 400 mg

Serious events: 1 serious events
Other events: 6 other events
Deaths: 1 deaths

Combination Phase, NOX66 800 mg

Serious events: 3 serious events
Other events: 5 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Monotherapy Phase, NOX66 400 mg
n=8 participants at risk
NOX66 400 mg administered daily for 14 day in a 21-day monotherapy phase (period 1)
Monotherapy Phase, NOX66 800 mg
n=7 participants at risk
NOX66 800 mg administered daily for 14 day in a 21-day monotherapy phase (period 1)
Combination Phase, NOX66 400 mg
n=8 participants at risk
Up to 6 cycles of a 28-day combination therapy cycle (period 2) with NOX66 400 mg administered daily on days 1 to 7 and IV carboplatin administered on Day 2 in each cycle with 2 carboplatin doses - low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Combination Phase, NOX66 800 mg
n=10 participants at risk
Up to 6 cycles of a 28-day combination therapy cycle (period 2) with NOX66 800 mg administered daily on days 1 to 7 and IV carboplatin administered on Day 2 in each cycle with 2 carboplatin doses - low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
General disorders
sudden death
0.00%
0/8 • 7 months
0.00%
0/3 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Injury, poisoning and procedural complications
Infusion reaction
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 1 • 7 months
Nervous system disorders
Coma
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 1 • 7 months
Gastrointestinal disorders
haemorrhage
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 1 • 7 months

Other adverse events

Other adverse events
Measure
Monotherapy Phase, NOX66 400 mg
n=8 participants at risk
NOX66 400 mg administered daily for 14 day in a 21-day monotherapy phase (period 1)
Monotherapy Phase, NOX66 800 mg
n=7 participants at risk
NOX66 800 mg administered daily for 14 day in a 21-day monotherapy phase (period 1)
Combination Phase, NOX66 400 mg
n=8 participants at risk
Up to 6 cycles of a 28-day combination therapy cycle (period 2) with NOX66 400 mg administered daily on days 1 to 7 and IV carboplatin administered on Day 2 in each cycle with 2 carboplatin doses - low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Combination Phase, NOX66 800 mg
n=10 participants at risk
Up to 6 cycles of a 28-day combination therapy cycle (period 2) with NOX66 800 mg administered daily on days 1 to 7 and IV carboplatin administered on Day 2 in each cycle with 2 carboplatin doses - low dose carboplatin AUC = 4 for treatment cycles 1-3 followed by higher dose carboplatin AUC = 6 for treatment cycles 4-6.
Blood and lymphatic system disorders
Anaemia
0.00%
0/8 • 7 months
14.3%
1/7 • Number of events 1 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
30.0%
3/10 • Number of events 6 • 7 months
Blood and lymphatic system disorders
Iron deficiency anaemia
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
10.0%
1/10 • Number of events 1 • 7 months
Blood and lymphatic system disorders
Neutropenia
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 2 • 7 months
20.0%
2/10 • Number of events 7 • 7 months
Cardiac disorders
Pericarditis
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
0.00%
0/10 • 7 months
Gastrointestinal disorders
Abdominal pain, upper
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Gastrointestinal disorders
Diarrhoea
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Gastrointestinal disorders
Flatulence
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Gastrointestinal disorders
Nausea
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 4 • 7 months
0.00%
0/10 • 7 months
General disorders
Asthenia
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Investigations
Platelet count decreased
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 2 • 7 months
Investigations
Weight decreased
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Investigations
White blood cell count increased
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Metabolism and nutrition disorders
Hypoalbuminaemia
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 1 • 7 months
Metabolism and nutrition disorders
Hypocalcaemia
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
20.0%
2/10 • Number of events 2 • 7 months
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Nervous system disorders
Altered state of consciousness
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 1 • 7 months
Nervous system disorders
Dizziness
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
10.0%
1/10 • Number of events 1 • 7 months
Nervous system disorders
Neuropathy, peripheral
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Respiratory, thoracic and mediastinal disorders
Hydrothorax
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/7 • 7 months
0.00%
0/8 • 7 months
0.00%
0/10 • 7 months
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Respiratory, thoracic and mediastinal disorders
Pulmonary fibrosis
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months
Vascular disorders
Embolism, arterial
0.00%
0/8 • 7 months
0.00%
0/7 • 7 months
12.5%
1/8 • Number of events 1 • 7 months
0.00%
0/10 • 7 months

Additional Information

Clinical Manager

Noxopharm Limited

Phone: +61 499005049

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: LTE60