Trial Outcomes & Findings for Neoadjuvant Ipilimumab in Prostate Cancer (NCT NCT01194271)

NCT ID: NCT01194271

Last Updated: 2024-06-06

Results Overview

Immunological response assays were measured at several time points starting at baseline until the eighth week after starting the medicine for each participant. The immunological responses measured were Cluster of Differentiation 4 (CD4), Cluster of Differentiation 8 (CD8) and Inducible T-cell Costimulatory (ICOS) markers. T-cells with the CD4 marker help coordinate the immune system response to an invader. Killer T-cells have the CD8 marker and are responsible for killing the invader. ICOS is a molecule which stimulates the activity of the immune response of the killer T-Cells and memory T cells. Participants with at least a 2 fold increase in the presence of CD4, CD8, or ICOS markers from the participant's baseline measure were considered a responder for that marker.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

19 participants

Primary outcome timeframe

Baseline to Week 8

Results posted on

2024-06-06

Participant Flow

Recruitment period: September 1, 2010 to June 5, 2013. All recruitment done at The University of Texas MD Anderson Cancer Center.

Participant milestones

Participant milestones
Measure
Neoadjuvant Ipilimumab
Leuprolide Acetate 22.5 mg administered as a single intramuscular 3 month depot + Ipilimumab 10 mg/kg by vein administered as 2 single doses, 3 weeks apart after hormone therapy + Radical Prostatectomy Surgery to remove prostate gland approximately 4 weeks after the second dose of Ipilimumab.
Overall Study
STARTED
19
Overall Study
COMPLETED
16
Overall Study
NOT COMPLETED
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Neoadjuvant Ipilimumab
Leuprolide Acetate 22.5 mg administered as a single intramuscular 3 month depot + Ipilimumab 10 mg/kg by vein administered as 2 single doses, 3 weeks apart after hormone therapy + Radical Prostatectomy Surgery to remove prostate gland approximately 4 weeks after the second dose of Ipilimumab.
Overall Study
Withdrawal by Subject
1
Overall Study
Ineligible, Screen Failure
1
Overall Study
Death
1

Baseline Characteristics

Neoadjuvant Ipilimumab in Prostate Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Neoadjuvant Ipilimumab
n=17 Participants
Leuprolide Acetate 22.5 mg administered as a single intramuscular 3 month depot + Ipilimumab 10 mg/kg by vein administered as 2 single doses, 3 weeks apart after hormone therapy + Radical Prostatectomy Surgery to remove prostate gland approximately 4 weeks after the second dose of Ipilimumab.
Age, Continuous
57.9 years
n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
Sex: Female, Male
Male
17 Participants
n=5 Participants
Race/Ethnicity, Customized
White
14 Participants
n=5 Participants
Race/Ethnicity, Customized
Black
3 Participants
n=5 Participants
Region of Enrollment
United States
17 Participants
n=5 Participants
PSA (Average) Tumor Clinical Stage
T1
5 Participants
n=5 Participants
PSA (Average) Tumor Clinical Stage
T2
4 Participants
n=5 Participants
PSA (Average) Tumor Clinical Stage
T3
8 Participants
n=5 Participants
Gleason Score
7
1 Participants
n=5 Participants
Gleason Score
8
5 Participants
n=5 Participants
Gleason Score
9
10 Participants
n=5 Participants
Gleason Score
10
1 Participants
n=5 Participants
Lupron Ipilimumab Dose
One dose
1 Participants
n=5 Participants
Lupron Ipilimumab Dose
Two doses
16 Participants
n=5 Participants
Surgery
Yes
16 Participants
n=5 Participants
Surgery
No
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline to Week 8

Population: One participant was not evaluable for outcome due to early death. Of evaluable 16 participants, the number of participants (N) analyzed reflected in CD4, CD8 and ICOS that are associated with immune response.

Immunological response assays were measured at several time points starting at baseline until the eighth week after starting the medicine for each participant. The immunological responses measured were Cluster of Differentiation 4 (CD4), Cluster of Differentiation 8 (CD8) and Inducible T-cell Costimulatory (ICOS) markers. T-cells with the CD4 marker help coordinate the immune system response to an invader. Killer T-cells have the CD8 marker and are responsible for killing the invader. ICOS is a molecule which stimulates the activity of the immune response of the killer T-Cells and memory T cells. Participants with at least a 2 fold increase in the presence of CD4, CD8, or ICOS markers from the participant's baseline measure were considered a responder for that marker.

Outcome measures

Outcome measures
Measure
Neoadjuvant Ipilimumab
n=16 Participants
Leuprolide Acetate 22.5 mg administered as a single intramuscular 3 month depot + Ipilimumab 10 mg/kg by vein administered as 2 single doses, 3 weeks apart after hormone therapy + Radical Prostatectomy Surgery to remove prostate gland approximately 4 weeks after the second dose of Ipilimumab.
Immunologic Response: Number of Participants With Immune Response
CD4
12 Participants
Immunologic Response: Number of Participants With Immune Response
CD8
7 Participants
Immunologic Response: Number of Participants With Immune Response
ICOS
9 Participants

Adverse Events

Neoadjuvant Ipilimumab

Serious events: 2 serious events
Other events: 17 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Neoadjuvant Ipilimumab
n=17 participants at risk
Leuprolide Acetate 22.5 mg administered as a single intramuscular 3 month depot + Ipilimumab 10 mg/kg by vein administered as 2 single doses, 3 weeks apart after hormone therapy + Radical Prostatectomy Surgery to remove prostate gland approximately 4 weeks after the second dose of Ipilimumab.
Respiratory, thoracic and mediastinal disorders
Bilateral pulmonary embolism
5.9%
1/17 • Number of events 1 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Cardiac disorders
Cardiac arrest
5.9%
1/17 • Number of events 1 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.

Other adverse events

Other adverse events
Measure
Neoadjuvant Ipilimumab
n=17 participants at risk
Leuprolide Acetate 22.5 mg administered as a single intramuscular 3 month depot + Ipilimumab 10 mg/kg by vein administered as 2 single doses, 3 weeks apart after hormone therapy + Radical Prostatectomy Surgery to remove prostate gland approximately 4 weeks after the second dose of Ipilimumab.
Cardiac disorders
Cardiac arrest
5.9%
1/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Respiratory, thoracic and mediastinal disorders
Acute respiratory distress syndrome (ARDS)
5.9%
1/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Skin and subcutaneous tissue disorders
Rash
52.9%
9/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
General disorders
Fatigue
47.1%
8/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Investigations
Transaminitis
41.2%
7/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Gastrointestinal disorders
Colitis/Diarrhea
52.9%
9/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
General disorders
Headache
35.3%
6/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Gastrointestinal disorders
Pancreatitis
29.4%
5/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Investigations
Hypophysitis
29.4%
5/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
General disorders
Fever
5.9%
1/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Metabolism and nutrition disorders
Dehydration
11.8%
2/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Nervous system disorders
Synocope
5.9%
1/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.
Metabolism and nutrition disorders
Hypoalbuminemia
5.9%
1/17 • Adverse event collection from baseline until 30 days after the last dose of drug, approximately 14 weeks post surgery.
Two participants of nineteen registered on the study were excluded prior to any treatment assignment due to screen failure and withdrawal, therefore are not included in adverse event reporting.

Additional Information

Padmanee Sharma, Professor, Genitourinary Medical Oncology

The University of Texas (UT) MD Anderson Cancer Center

Phone: 713-792-2830

Results disclosure agreements

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