Trial Outcomes & Findings for PSMA and TARP Peptide Vaccine With Poly IC-LC Adjuvant in HLA-A2 (+) Patients With Elevated PSA After Initial Definitive Treatment (NCT NCT00694551)

NCT ID: NCT00694551

Last Updated: 2019-10-04

Results Overview

Number of participants with related Grade 3 or higher adverse events. Establish the safety and toxicity of varying doses of polypeptide vaccines PSMA and TARP administered with a fixed dose of Poly IC-LC as an adjuvant.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

29 participants

Primary outcome timeframe

Up to 48 months

Results posted on

2019-10-04

Participant Flow

Participant milestones

Participant milestones
Measure
A. Level 100 mcg Peptide Vaccine
Peptide vaccine dose level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Level 300 mcg Peptide Vaccine
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Level 1 mg Peptide Vaccine
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Overall Study
STARTED
10
10
9
Overall Study
COMPLETED
9
10
8
Overall Study
NOT COMPLETED
1
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
A. Level 100 mcg Peptide Vaccine
Peptide vaccine dose level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Level 300 mcg Peptide Vaccine
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Level 1 mg Peptide Vaccine
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Overall Study
Disease Progression
1
0
1

Baseline Characteristics

PSMA and TARP Peptide Vaccine With Poly IC-LC Adjuvant in HLA-A2 (+) Patients With Elevated PSA After Initial Definitive Treatment

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
A. Peptide Vaccine
n=10 Participants
Peptide vaccine dose Level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Peptide Vaccine
n=10 Participants
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Peptide Vaccine
n=9 Participants
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Total
n=29 Participants
Total of all reporting groups
Age, Continuous
69 years
n=99 Participants
69.5 years
n=107 Participants
69 years
n=206 Participants
69.5 years
n=157 Participants
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Age, Categorical
Between 18 and 65 years
1 Participants
n=99 Participants
6 Participants
n=107 Participants
2 Participants
n=206 Participants
9 Participants
n=157 Participants
Age, Categorical
>=65 years
9 Participants
n=99 Participants
4 Participants
n=107 Participants
7 Participants
n=206 Participants
20 Participants
n=157 Participants
Sex: Female, Male
Female
10 Participants
n=99 Participants
10 Participants
n=107 Participants
9 Participants
n=206 Participants
29 Participants
n=157 Participants
Sex: Female, Male
Male
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
0 Participants
n=157 Participants
Region of Enrollment
United States
10 participants
n=99 Participants
10 participants
n=107 Participants
9 participants
n=206 Participants
29 participants
n=157 Participants

PRIMARY outcome

Timeframe: Up to 48 months

Population: All participants who received treatment.

Number of participants with related Grade 3 or higher adverse events. Establish the safety and toxicity of varying doses of polypeptide vaccines PSMA and TARP administered with a fixed dose of Poly IC-LC as an adjuvant.

Outcome measures

Outcome measures
Measure
A. Level 100 mcg Peptide Vaccine
n=10 Participants
Peptide vaccine dose Level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Level 300 mcg Peptide Vaccine
n=10 Participants
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Level 1 mg Peptide Vaccine
n=9 Participants
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Occurrence of Related Adverse Events - Grade 3 or Higher
0 participants
0 participants
0 participants

SECONDARY outcome

Timeframe: Up to 48 months

Population: 29 patients who had serial PSA data, normalized by date and PSA.

Number of Participants Who Had a Doubling of the PSA or Proceeded to Another Therapy. Assess the impact of the vaccine on the pattern of PSA change in patients with castrate testosterone level and in patients with non-suppressed testosterone level not on hormone therapy.

Outcome measures

Outcome measures
Measure
A. Level 100 mcg Peptide Vaccine
n=10 Participants
Peptide vaccine dose Level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Level 300 mcg Peptide Vaccine
n=10 Participants
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Level 1 mg Peptide Vaccine
n=9 Participants
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Number of Participants With Prostatic Specific Antigen (PSA) Doubling
8 participants
6 participants
5 participants

SECONDARY outcome

Timeframe: Up to 48 months

Population: 29 patients who had serial PSA data, normalized by date and PSA.

Number of participants who did not have a PSA doubling before their last study visit, median 458 days from baseline PSA (55-613).

Outcome measures

Outcome measures
Measure
A. Level 100 mcg Peptide Vaccine
n=10 Participants
Peptide vaccine dose Level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Level 300 mcg Peptide Vaccine
n=10 Participants
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Level 1 mg Peptide Vaccine
n=9 Participants
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Number of Participants Who Did Not Have PSA Doubling
2 participants
4 participants
4 participants

Adverse Events

A. Peptide Vaccine

Serious events: 0 serious events
Other events: 10 other events
Deaths: 0 deaths

B. Peptide Vaccine

Serious events: 1 serious events
Other events: 10 other events
Deaths: 0 deaths

C. Peptide Vaccine

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
A. Peptide Vaccine
n=10 participants at risk
Peptide vaccine dose Level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Peptide Vaccine
n=10 participants at risk
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Peptide Vaccine
n=9 participants at risk
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
Respiratory, thoracic and mediastinal disorders
Cough - Grade 2 -
0.00%
0/10 • 2 years, 9 months
10.0%
1/10 • Number of events 1 • 2 years, 9 months
0.00%
0/9 • 2 years, 9 months

Other adverse events

Other adverse events
Measure
A. Peptide Vaccine
n=10 participants at risk
Peptide vaccine dose Level 100 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
B. Peptide Vaccine
n=10 participants at risk
Peptide vaccine dose level 300 mcg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
C. Peptide Vaccine
n=9 participants at risk
Peptide vaccine dose level 1 mg Peptide Vaccine: Peptide vaccine (PSMA and TARP peptide vaccine with Poly IC-LC adjuvant). Pilot study using three treatment arms of increasing peptide dose levels (100 mcg, 300 mcg, and 1 mg) with a fixed dose of Poly IC-LC as an adjuvant. Patients were randomly assigned to one of the 3 arms upon enrollment.
General disorders
Fatigue
50.0%
5/10 • Number of events 24 • 2 years, 9 months
50.0%
5/10 • Number of events 15 • 2 years, 9 months
66.7%
6/9 • Number of events 29 • 2 years, 9 months
General disorders
Feverr (in the absence of neutropenia)
60.0%
6/10 • Number of events 17 • 2 years, 9 months
50.0%
5/10 • Number of events 22 • 2 years, 9 months
44.4%
4/9 • Number of events 6 • 2 years, 9 months
General disorders
Rigors/chills
40.0%
4/10 • Number of events 10 • 2 years, 9 months
60.0%
6/10 • Number of events 18 • 2 years, 9 months
22.2%
2/9 • Number of events 2 • 2 years, 9 months
General disorders
Pain - Head/headache
30.0%
3/10 • Number of events 15 • 2 years, 9 months
60.0%
6/10 • Number of events 29 • 2 years, 9 months
77.8%
7/9 • Number of events 22 • 2 years, 9 months
General disorders
Pain - Muscle
40.0%
4/10 • Number of events 11 • 2 years, 9 months
40.0%
4/10 • Number of events 19 • 2 years, 9 months
44.4%
4/9 • Number of events 14 • 2 years, 9 months
General disorders
Pain - Back
0.00%
0/10 • 2 years, 9 months
20.0%
2/10 • Number of events 2 • 2 years, 9 months
33.3%
3/9 • Number of events 3 • 2 years, 9 months
General disorders
Pain - Joint
30.0%
3/10 • Number of events 3 • 2 years, 9 months
10.0%
1/10 • Number of events 2 • 2 years, 9 months
0.00%
0/9 • 2 years, 9 months
General disorders
Pain - Neck
0.00%
0/10 • 2 years, 9 months
20.0%
2/10 • Number of events 2 • 2 years, 9 months
11.1%
1/9 • Number of events 2 • 2 years, 9 months
Skin and subcutaneous tissue disorders
Injection site reaction/extravasation changes
70.0%
7/10 • Number of events 34 • 2 years, 9 months
90.0%
9/10 • Number of events 46 • 2 years, 9 months
77.8%
7/9 • Number of events 38 • 2 years, 9 months
Gastrointestinal disorders
Anorexia
20.0%
2/10 • Number of events 3 • 2 years, 9 months
0.00%
0/10 • 2 years, 9 months
22.2%
2/9 • Number of events 3 • 2 years, 9 months
Gastrointestinal disorders
Nausea
20.0%
2/10 • Number of events 4 • 2 years, 9 months
0.00%
0/10 • 2 years, 9 months
11.1%
1/9 • Number of events 2 • 2 years, 9 months
Respiratory, thoracic and mediastinal disorders
Pulmonary/Upper Respiratory - Other
0.00%
0/10 • 2 years, 9 months
20.0%
2/10 • Number of events 2 • 2 years, 9 months
44.4%
4/9 • Number of events 9 • 2 years, 9 months
General disorders
Flu-like syndrome
20.0%
2/10 • Number of events 5 • 2 years, 9 months
10.0%
1/10 • Number of events 1 • 2 years, 9 months
44.4%
4/9 • Number of events 8 • 2 years, 9 months
Nervous system disorders
Dizziness
20.0%
2/10 • Number of events 4 • 2 years, 9 months
30.0%
3/10 • Number of events 9 • 2 years, 9 months
0.00%
0/9 • 2 years, 9 months
Blood and lymphatic system disorders
Lymphatics - Other
0.00%
0/10 • 2 years, 9 months
30.0%
3/10 • Number of events 3 • 2 years, 9 months
11.1%
1/9 • Number of events 2 • 2 years, 9 months
Musculoskeletal and connective tissue disorders
Musculoskeletal/Soft Tissue - Other
10.0%
1/10 • Number of events 1 • 2 years, 9 months
20.0%
2/10 • 2 years, 9 months
0.00%
0/9 • 2 years, 9 months
Endocrine disorders
Hot flashes/flushes
20.0%
2/10 • Number of events 2 • 2 years, 9 months
10.0%
1/10 • Number of events 1 • 2 years, 9 months
0.00%
0/9 • 2 years, 9 months

Additional Information

Mayer Fishman, M.D., Ph.D.

H. Lee Moffitt Cancer Center and Research Institute

Phone: 813-745-4398

Results disclosure agreements

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