Trial Outcomes & Findings for Exploratory Study of TG02-treatment as Monotherapy or in Combination With Pembrolizumab to Assess Safety and Immune Activation in Patients With Locally Advanced Primary and Recurrent Oncogenic RAS Exon 2 Mutant Colorectal Cancer (NCT NCT02933944)

NCT ID: NCT02933944

Last Updated: 2022-01-26

Results Overview

Safety of TG02-treatment by assessment of laboratory parameters (routine haematology and biochemistry), vital signs and recording of adverse events

Recruitment status

TERMINATED

Study phase

PHASE1

Target enrollment

6 participants

Primary outcome timeframe

From start of study until End of study, which is approximately 4 weeks after surgery and maximum 20 weeks after start of TG02-treatment

Results posted on

2022-01-26

Participant Flow

Participant milestones

Participant milestones
Measure
TG02-treatment
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. Part II was not conducted.
Overall Study
STARTED
6
Overall Study
COMPLETED
6
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Exploratory Study of TG02-treatment as Monotherapy or in Combination With Pembrolizumab to Assess Safety and Immune Activation in Patients With Locally Advanced Primary and Recurrent Oncogenic RAS Exon 2 Mutant Colorectal Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
TG02-treatment
n=6 Participants
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. Part II was not conducted.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
3 Participants
n=5 Participants
Age, Categorical
>=65 years
3 Participants
n=5 Participants
Age, Continuous
58.0 years
STANDARD_DEVIATION 10.75 • n=5 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
Race (NIH/OMB)
White
5 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
New Zealand
1 participants
n=5 Participants
Region of Enrollment
Australia
5 participants
n=5 Participants

PRIMARY outcome

Timeframe: From start of study until End of study, which is approximately 4 weeks after surgery and maximum 20 weeks after start of TG02-treatment

Safety of TG02-treatment by assessment of laboratory parameters (routine haematology and biochemistry), vital signs and recording of adverse events

Outcome measures

Outcome measures
Measure
TG02-treatment
n=6 Participants
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. TG02-treatment Pembrolizumab
Patients Safety During Study
Number of patients with Treatment Emergent Adverse Events (TEAEs)
6 Participants
Patients Safety During Study
Number of patients with Treatment Emergent Adverse Serious Event (TESAE)
2 Participants
Patients Safety During Study
Number of patients with Grade 3 or 4 Treatment Emergent Adverse Event (TEAE)
2 Participants
Patients Safety During Study
Number of patients with Treatment Emergent Adverse Event related to any of the study treatments
3 Participants
Patients Safety During Study
Number of patients with fatal events
0 Participants
Patients Safety During Study
Number of patients discontinuing for Adverse Events
0 Participants

PRIMARY outcome

Timeframe: 8 weeks

Number of patients with systemic TG02 specific immune response assessed by a Delayed Type Hypersensitivity (DTH) test

Outcome measures

Outcome measures
Measure
TG02-treatment
n=6 Participants
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. TG02-treatment Pembrolizumab
Patients' Immune Response Assessed by Delayed Type Hypersensitive (DTH) Test
4 Participants

PRIMARY outcome

Timeframe: 8 weeks

Systemic immune response assessed as change in presence of TG02 specific T-cells in peripheral blood

Outcome measures

Outcome measures
Measure
TG02-treatment
n=6 Participants
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. TG02-treatment Pembrolizumab
Systemic Immune Response: T-cell Response
3 Participants

PRIMARY outcome

Timeframe: 8 weeks

Population: Due to insufficient number of baseline samples, no valid results can be derived i.e. change in number of activated intratumoural lymphocytes from baseline.

Immunological activation in tumour mass by assessing fold changes from baseline of intra-tumoural lymphocytes.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 8 weeks

Population: Due to the low number of baseline samples, no treatment effect can be concluded.

Number of patients with changes from baseline in immune suppression factors (such as PDL1, Treg and MSDC) from tumour samples collected pre TG02/GMCSF treatment

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 8 weeks

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: From screening until surgery

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: From screening until surgery

Outcome measures

Outcome data not reported

Adverse Events

TG02-treatment

Serious events: 2 serious events
Other events: 6 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
TG02-treatment
n=6 participants at risk
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. Part II was not conducted.
Infections and infestations
Urinary tract infection
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Injury, poisoning and procedural complications
Anastomotic leak
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment

Other adverse events

Other adverse events
Measure
TG02-treatment
n=6 participants at risk
Part I: The TG02-treatment consists of an intradermal injection of GM-CSF followed by an injection of TG02. The GM-CSF is to be given 15-30 minutes before TG02. TG02-treatment will be administered on Days 1, 8, 15, 22 and 36. If surgery after week 10, TG02-treatment will also be given at week 10 (Day 64). Part II: TG02-treatment will be given as described under Part I. In addition pembrolizumab will be administered. Part II was not conducted.
General disorders
Influenza like illness
33.3%
2/6 • Number of events 4 • 14 to 20 weeks on study with up to 10 weeks of treatment
General disorders
Chills
16.7%
1/6 • Number of events 4 • 14 to 20 weeks on study with up to 10 weeks of treatment
General disorders
Injection site pain
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
General disorders
Injection site pruritus
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
General disorders
Injection site reaction
16.7%
1/6 • Number of events 2 • 14 to 20 weeks on study with up to 10 weeks of treatment
General disorders
Pyrexia
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Gastrointestinal disorders
Abdominal pain lower
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Gastrointestinal disorders
Rectal haemorrhage
16.7%
1/6 • Number of events 2 • 14 to 20 weeks on study with up to 10 weeks of treatment
Infections and infestations
Laryngitis
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Musculoskeletal and connective tissue disorders
Arthralgia
33.3%
2/6 • Number of events 2 • 14 to 20 weeks on study with up to 10 weeks of treatment
Musculoskeletal and connective tissue disorders
Myalgia
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Renal and urinary disorders
Haematuria
33.3%
2/6 • Number of events 2 • 14 to 20 weeks on study with up to 10 weeks of treatment
Renal and urinary disorders
Dysuria
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Renal and urinary disorders
Pollakiuria
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
33.3%
2/6 • Number of events 2 • 14 to 20 weeks on study with up to 10 weeks of treatment
Skin and subcutaneous tissue disorders
Alopecia
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Skin and subcutaneous tissue disorders
Pruritus
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Blood and lymphatic system disorders
Neutropenia
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment
Nervous system disorders
Headache
16.7%
1/6 • Number of events 1 • 14 to 20 weeks on study with up to 10 weeks of treatment

Additional Information

Chief Medical Officer

Targovax

Phone: + 47 21398810

Results disclosure agreements

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