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Study of DPX-Survivac Therapy in Patients With Recurrent Ovarian Cancer

I

Immunovaccine

Status and phase

Active, not recruiting
Phase 2
Phase 1

Conditions

Recurrent Epithelial Ovarian Cancer
Recurrent Peritoneal Cancer
Recurrent Fallopian Tube Cancer

Treatments

Other: DPX-Survivac
Drug: Cyclophosphamide
Drug: Epacadostat (INCB024360)

Study type

Interventional

Funder types

Industry

Identifiers

NCT02785250
ONC-DPX-Survivac-06
DeCidE1 (Other Identifier)

Details and patient eligibility

About

T cell activating therapy DPX-Survivac, low dose oral cyclophosphamide, and IDO1 inhibitor epacadostat will be tested together for the first time in patients with recurrent ovarian, fallopian tube, or peritoneal cancer to determine the safety and potential immune-modulating activity of the combination of these agents.

Full description

The Phase 1b component is a multicenter, non-randomized, open label, uncontrolled, safety and effectiveness study to identify the recommended Phase 2 dose (R2PD) of epacadostat in combination with DPX-Survivac and cyclophosphamide.

The Phase 2 component was initially a multicenter, randomized, open-label study to evaluate the safety and effectiveness of DPX-Survivac + cyclophosphamide with or without the RP2D of epacadostat. The design of the study has been amended to a single arm study in which up to 16 evaluable subjects will be enrolled to received DPX-Survivac plus intermittent low dose cyclophosphamide (i.e. treatment arm 2).

Enrollment

85 estimated patients

Sex

Female

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

  • Histologically confirmed, stage IIc-IV epithelial ovarian, fallopian tube or peritoneal cancer
  • Platinum-resistant or -sensitive subjects after completing first-line treatment (debulking surgery and adjuvant or neoadjuvant treatment with standard of care treatment such as carboplatin and paclitaxel). Subjects may have had any number of subsequent lines of chemotherapy.
  • Must have evidence of progressive disease with either biochemical (i.e. rising CA-125) and/or radiologic progression
  • Must have measurable disease by RECIST v1.1, a successful pre-treatment tumor biopsy, and be willing to undergo tumor biopsy during treatment
  • Ambulatory with an ECOG 0-1
  • Life expectancy ≥ 6 months
  • Meet protocol-specified laboratory requirements

Key Exclusion Criteria:

  • Eligible for otherwise curative treatment or undergoing concurrent therapy
  • Prior receipt of survivin based vaccines or immune checkpoint inhibitors (e.g. anti-CTLA-4, anti-PD-1, anti-PD-L1, or any other antibody or drug specifically targeting T cell co-stimulation) or an IDO inhibitor
  • Concurrent second malignancy other than non-melanoma skin cancer, cervical carcinoma in situ, or controlled bladder cancer
  • Clinical ascites
  • Any single lesion greater than or equal to 4 cm (per RECIST v1.1)
  • Malignant bowel obstruction
  • History of autoimmune disease requiring treatment within the last two years (except vitiligo or diabetes)
  • Recent history of thyroiditis
  • Presence of a serious acute infection or chronic infection
  • Active central nervous system (CNS) or leptomeningeal metastasis (brain metastases)
  • GI condition that might limit absorption of oral agents
  • Other serious intercurrent chronic or acute illness, including myocardial infarction or cerebrovascular event within 6 months
  • Ongoing treatment with steroid therapy or other immunosuppressive
  • Receipt of monoamine oxidase inhibitors (MAOIs) or UGT1A9 inhibitors
  • Receipt of live attenuated vaccines
  • Acute or chronic skin and/or microvascular disorders
  • Edema or lymphedema in the lower limbs > grade 2

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

85 participants in 2 patient groups

Arm 1
Experimental group
Description:
DPX-Survivac, Cyclophosphamide, Epacadostat (Phase 1 and initially Phase 2)
Treatment:
Drug: Epacadostat (INCB024360)
Other: DPX-Survivac
Drug: Cyclophosphamide
Arm 2
Experimental group
Description:
DPX-Survivac, Cyclophosphamide (in Phase 2 only)
Treatment:
Other: DPX-Survivac
Drug: Cyclophosphamide

Trial contacts and locations

9

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Data sourced from clinicaltrials.gov

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