A Phase I/II Trial of VB-111 and Paclitaxel for Recurrent Platinum-Resistant Müllerian Cancer

NCT01711970CompletedPHASE1, PHASE2INTERVENTIONAL

Summary

Key Facts

Lead Sponsor

Vascular Biogenics Ltd. operating as VBL Therapeutics

Enrollment

38

Start Date

2012-11-01

Completion Date

2017-05-03

Study Type

INTERVENTIONAL

Official Title

A Phase I/II Trial of Multiple Dose VB-111 and Weekly Paclitaxel for the Treatment of Recurrent Platinum-Resistant Müllerian Cancer

Interventions

Paclitaxel

Conditions

Platinum Resistant Ovarian Cancer

Eligibility

Age Range

18 Years+

Sex

FEMALE

Inclusion Criteria:

* Patients aged \> 18
* Histologically confirmed epithelial ovarian, peritoneal, or fallopian tube cancer, and uterine papillary serous carcinomas (UPSC), and gynecologic malignant mixed müllerian tumors (MMMTs).
* Must have had prior platinum or platinum based therapy.
* Eastern Cooperative Oncology Group (ECOG) status 0-1.
* Platinum resistant or refractory disease within 6 months of completing or while receiving a platinum and taxane containing regimen
* Measurable disease
* Adequate bone marrow and hematological function.
* Must have recovered from acute toxicity from prior treatment
* Prior treatment with an anti-angiogenic agent is not an exclusion criterion.
* No prior GI perforation, or GI obstruction or involvement of the bowel on imaging
* Known hypersensitivity to Cremophor EL. However, participants are eligible if they have had a prior paclitaxel reaction, but subsequently tolerated the drug at rechallenge.
* No patients receiving other investigational therapy for the past 30 days before dosing.

Exclusion Criteria:

* More than 3 prior lines of chemotherapy for recurrent cancer.
* History of other active malignancy, other than superficial basal cell and superficial squamous cell, or carcinoma in situ of the cervix within last 2 years.
* Life expectancy of less than 3 months
* CTC Grade 1 or greater neuropathy (motor or sensory) from comorbidity other than prior taxane exposure, such as diabetes.
* Inadequately controlled hypertension or prior history of hypertensive crisis or hypertensive encephalopathy.
* New York Heart Association (NYHA) Grade II or greater congestive heart failure.
* History of myocardial infarction or unstable angina within 6 months prior to study Day 1.
* History of stroke or transient ischemic attack within 6 months prior to Day 1.
* Known CNS disease, except for treated brain metastasis
* Significant vascular disease (e.g., aortic aneurysm, requiring surgical repair or recent peripheral arterial thrombosis) within 6 months prior to Day 1.
* History of hemoptysis (1/2 teaspoon of bright red blood per episode) within 1 month prior to Day 1.
* Evidence of bleeding diathesis or significant coagulopathy (in the absence of therapeutic anticoagulation).

Outcome Measures

Primary Outcomes

Define toxicities

Define toxicities of a limited number of doses of combination VB-111 and weekly paclitaxel spanning anticipated effective doses.

Time frame: 2 years

Locations

Massachusetts General Hospital, Boston, United States

Linked Papers

2020-04-05

Ofranergene obadenovec (VB-111) in platinum-resistant ovarian cancer; favorable response rates in a phase I/II study are associated with an immunotherapeutic effect

Report final results of a phase I/II study of VB-111, a targeted anti-cancer gene therapy with a dual mechanism: anti angiogenic/vascular disruption and induction of an anti-tumor directed immune response, in combination with paclitaxel in patients with platinum-resistant ovarian cancer. Study NCT01711970 was a prospective, open label, dose escalation study assessing combination treatment of VB-111 and weekly paclitaxel. In the Phase I part of the study, patients were treated with escalating doses of intravenous VB-111 and paclitaxel. In Phase 2, patients were treated with therapeutic doses of VB-111 and paclitaxel 80 mg/m 21 patients with recurrent platinum-resistant ovarian cancer were enrolled. 17/21 received the therapeutic dose. Patients had a median of 3 prior lines of therapy. Half of the subjects were platinum refractory, and half were previously treated with antiangiogenics. No DLTs were observed. VB-111 was well tolerated and associated with mild flu-like symptoms. In the therapeutic dose cohort, a 58% CA-125 GCIG response rate was seen in evaluable patients. The median OS was 16.6 months in patients treated with therapeutic dose compared to 5.8 months in sub-therapeutic dose (p = 0.028). Tumor specimens taken after treatment demonstrated tumor infiltrated with cytotoxic CD8 T-cells in regions of apoptotic cancer cells. Treatment with VB-111 in combination with paclitaxel was safe and well tolerated. Favorable tumor responses and overall survival outcomes were associated with induction of an immunotherapeutic effect.

Linked Investigators