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Phase II Study of Intraperitoneal NanoPac® in Patients With Ovarian Cancer

Phase II Study of Four Dose Levels of Intraperitoneal NanoPac® Plus IV Carboplatin and Paclitaxel in Patients With Epithelial Ovarian Cancer Undergoing Cytoreductive Surgery

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03029585
Enrollment
10
Registered
2017-01-24
Start date
2017-04-19
Completion date
2019-11-04
Last updated
2021-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ovarian Carcinoma

Keywords

ovarian carcinoma, ovarian cancer, ovarian neoplasms, ovarian diseases

Brief summary

This study will evaluate NanoPac® administered intraperitoneally (IP) immediately post-cytoreductive surgery, followed by standard of care (SOC) intravenous (IV) chemotherapy, in women with ovarian cancer. The study will compare IP NanoPac® (plus IV chemotherapy) with SOC IV chemotherapy alone.

Detailed description

Research has shown that the administration of chemotherapy directly into the peritoneal cavity (intraperitoneal \[IP\] chemotherapy) may provide a significant survival benefit to women with ovarian cancer when combined with cytoreductive surgery and IV chemotherapy. This study will include a dose-finding phase and an efficacy phase to evaluate IP NanoPac® administered immediately post-cytoreductive surgery in women with ovarian cancer. In the dose-finding phase, subjects will be enrolled in dose-escalated cohorts of three subjects and receive IP NanoPac® at 100, 200, 300, or 400 mg/m2 plus standard of care (SOC) IV chemotherapy. Subjects will be followed for disease status for 12 months. The two best doses from the dose-finding phase will be determined. In the efficacy phase, subjects will be randomized 1:1:1 to one of the two best doses plus SOC IV chemotherapy or SOC alone.

Interventions

DRUGNanoPac® 100 mg/m2

Single intraperitoneal injection of 100 mg/m2 NanoPac® during cytoreductive surgery, followed by standard-of-care IV carboplatin and IV paclitaxel treatment

DRUGNanoPac® 200 mg/m2

Single intraperitoneal injection of 200 mg/m2 NanoPac® during cytoreductive surgery, followed by standard-of-care IV carboplatin and IV paclitaxel treatment

DRUGNanoPac® 300 mg/m2

Single intraperitoneal injection of 300 mg/m2 NanoPac® during cytoreductive surgery, followed by standard-of-care IV carboplatin and IV paclitaxel treatment

DRUGNanoPac® 400 mg/m2

Single intraperitoneal injection of 400 mg/m2 NanoPac® during cytoreductive surgery, followed by standard-of-care IV carboplatin and IV paclitaxel treatment

DRUGStandard of Care Intravenous Chemotherapy

Cytoreductive surgery followed by standard-of-care IV carboplatin and IV paclitaxel treatment

Sponsors

US Biotest, Inc.
CollaboratorINDUSTRY
NanOlogy, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Epithelial ovarian cancer which is contained within the abdomen, but may include pleural effusion if that is the limit of non-peritoneal cavity disease. If subject has recurrent epithelial ovarian cancer, the disease must be platinum sensitive (recurrence \>6 months from prior chemotherapy regimen that included a platinum agent and cytoreductive surgery) * Subject appropriate for cytoreductive surgery and treatment with IV platinum and paclitaxel * Minimal or non-symptomatic ascites * ≥18 years old * Signed informed consent

Exclusion criteria

* Epithelial ovarian cancer outside of the peritoneal cavity, with the exception of pleural effusions * Anticipated use of concomitant chemotherapy (other than the protocol-specified agents), immunotherapy, or radiation therapy * Treatment with a prior investigational agent within 30 days of planned instillation of NanoPac®, with the exception of subjects participating in poly (ADP-ribose) polymerase (PARP) inhibitor trials. These subjects must discontinue the investigational agent prior to surgery * Known sensitivity to any of the study medication components or the chemotherapy regimen * History of prior malignancy other than ovarian that has not been in remission for \>5 years, with the exception of basal cell or squamous cell carcinoma or cervical carcinoma in situ on biopsy * Ileostomy or hepatic resection during current cytoreductive surgery * Women of childbearing potential not practicing adequate forms of birth control

Design outcomes

Primary

MeasureTime frameDescription
Treatment-emergent Adverse Events12 monthsAdverse events will include any clinically relevant changes in laboratory values, vital signs, and physical examination. Treatment-emergent adverse events occur when the date and time of the adverse event onset is on or after the first application of the investigational agent and any time up to when the intravenous chemotherapy commences. Treatment-emergent adverse events will be summarized for each treatment group. The summaries will include an overall summary of the number of subjects reporting and the number of events reported, summaries of adverse events leading to termination or death, and summaries by severity and relatedness (separately and combined). Of greatest interest will be post-surgery signs of toxicity (e.g., severe abdominal pain after 5-7 days, neutropenia, thrombocytopenia, bowel dehiscence, prolonged ileus).

Secondary

MeasureTime frameDescription
Maximum Plasma Concentration of Paclitaxel (Cmax)12 monthsPlasma samples will be taken on Day 1 at 1, 2, 4, 8, and 24 hours post-intraperitoneal administration of NanoPac® and weekly thereafter until IV chemotherapy begins. Additionally, a pharmacokinetics (PK) sample will be collected from every subject prior to each cycle of IV chemotherapy for determination of paclitaxel concentrations to assess potential NanoPac® persistence. PK levels of paclitaxel in the plasma will be summarized descriptively.
Progression Free Survival (PFS) at 12 Months12 months post-treatmentProgression free survival (PFS) was assessed every 3 months until the end of the 12-month follow-up period, and every 6 months thereafter until progression or the last subject in the trial has completed 12 months of follow-up. Factors taken into account to determine time-to-progression included CA-125 levels, tumor burden as assessed by imaging and utilizing RECIST version 1.1 for assessment of response, and cancer-related symptoms such as bowel obstruction and ascites.

Countries

United States

Participant flow

Participants by arm

ArmCount
NanoPac® 100 mg/m2
Intraperitoneal NanoPac® 100 mg/m2 applied immediately post-cytoreductive surgery, followed by standard of care intravenous chemotherapy. NanoPac® 100 mg/m2: Single intraperitoneal injection of 100 mg/m2 NanoPac® during cytoreductive surgery, followed by standard-of-care IV carboplatin and IV paclitaxel treatment Standard of Care Intravenous Chemotherapy: Cytoreductive surgery followed by standard-of-care IV carboplatin and IV paclitaxel treatment
7
NanoPac® 200 mg/m2
Intraperitoneal NanoPac® 200 mg/m2 applied immediately post-cytoreductive surgery, followed by standard of care intravenous chemotherapy. NanoPac® 200 mg/m2: Single intraperitoneal injection of 200 mg/m2 NanoPac® during cytoreductive surgery, followed by standard-of-care IV carboplatin and IV paclitaxel treatment Standard of Care Intravenous Chemotherapy: Cytoreductive surgery followed by standard-of-care IV carboplatin and IV paclitaxel treatment
3
Total10

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath11
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicTotalNanoPac® 200 mg/m2NanoPac® 100 mg/m2
Age, Continuous67 years62 years68 years
Disease Status
Primary
6 Participants2 Participants4 Participants
Disease Status
Recurrent
4 Participants1 Participants3 Participants
ECOG Status
ECOG 0
7 Participants2 Participants5 Participants
ECOG Status
ECOG 1
3 Participants1 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
9 Participants3 Participants6 Participants
Sex: Female, Male
Female
10 Participants3 Participants7 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants
Status of Ovarian Cancer at Screening
IIIA2
1 Participants1 Participants0 Participants
Status of Ovarian Cancer at Screening
IIIB
2 Participants0 Participants2 Participants
Status of Ovarian Cancer at Screening
IIIC
5 Participants1 Participants4 Participants
Status of Ovarian Cancer at Screening
IVB
2 Participants1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 71 / 3
other
Total, other adverse events
7 / 73 / 3
serious
Total, serious adverse events
4 / 73 / 3

Outcome results

Primary

Treatment-emergent Adverse Events

Adverse events will include any clinically relevant changes in laboratory values, vital signs, and physical examination. Treatment-emergent adverse events occur when the date and time of the adverse event onset is on or after the first application of the investigational agent and any time up to when the intravenous chemotherapy commences. Treatment-emergent adverse events will be summarized for each treatment group. The summaries will include an overall summary of the number of subjects reporting and the number of events reported, summaries of adverse events leading to termination or death, and summaries by severity and relatedness (separately and combined). Of greatest interest will be post-surgery signs of toxicity (e.g., severe abdominal pain after 5-7 days, neutropenia, thrombocytopenia, bowel dehiscence, prolonged ileus).

Time frame: 12 months

ArmMeasureValue (NUMBER)
NanoPac® 100 mg/m2Treatment-emergent Adverse Events80 Treatment Emergent Adverse Events
NanoPac® 200 mg/m2Treatment-emergent Adverse Events28 Treatment Emergent Adverse Events
Secondary

Maximum Plasma Concentration of Paclitaxel (Cmax)

Plasma samples will be taken on Day 1 at 1, 2, 4, 8, and 24 hours post-intraperitoneal administration of NanoPac® and weekly thereafter until IV chemotherapy begins. Additionally, a pharmacokinetics (PK) sample will be collected from every subject prior to each cycle of IV chemotherapy for determination of paclitaxel concentrations to assess potential NanoPac® persistence. PK levels of paclitaxel in the plasma will be summarized descriptively.

Time frame: 12 months

ArmMeasureValue (MEAN)Dispersion
NanoPac® 100 mg/m2Maximum Plasma Concentration of Paclitaxel (Cmax)12.56 ng/mLStandard Deviation 10.98
NanoPac® 200 mg/m2Maximum Plasma Concentration of Paclitaxel (Cmax)26.50 ng/mLStandard Deviation 13.56
Secondary

Progression Free Survival (PFS) at 12 Months

Progression free survival (PFS) was assessed every 3 months until the end of the 12-month follow-up period, and every 6 months thereafter until progression or the last subject in the trial has completed 12 months of follow-up. Factors taken into account to determine time-to-progression included CA-125 levels, tumor burden as assessed by imaging and utilizing RECIST version 1.1 for assessment of response, and cancer-related symptoms such as bowel obstruction and ascites.

Time frame: 12 months post-treatment

Population: Of the 10 subjects enrolled, four subjects were not evaluable for PFS at 12 months post-NanoPac instillation. For one subject, no imaging was performed over the course of the study; one subject was deceased due to leptomeningeal carcinomatosis; one subject was deceased due to a respiratory arrest; and one subject withdrew consent from the study. Both deaths were considered not related to study medication by the Investigator and the Medical Monitor.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
NanoPac® 100 mg/m2Progression Free Survival (PFS) at 12 MonthsPFS at 12 months4 Participants
NanoPac® 100 mg/m2Progression Free Survival (PFS) at 12 MonthsDisease Progression0 Participants
NanoPac® 200 mg/m2Progression Free Survival (PFS) at 12 MonthsPFS at 12 months0 Participants
NanoPac® 200 mg/m2Progression Free Survival (PFS) at 12 MonthsDisease Progression2 Participants

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026