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Completed

NCT Number: NCT03268382

p53 Activation in Platinum-Resistant High Grade Serous Ovarian Cancer, a Study of PLD With APR-246

The purpose of this study is to make a preliminary assessment of the efficacy of a combined APR-246 and PLD chemotherapy regimen in patients with platinum-resistant recurrent high grade serous ovarian cancer (HGSOC) with mutated TP53. In addition, the study aims to assess the safety profile of the combined APR-246 and PLD chemotherapy regimen, to evaluate potential biomarkers, and to assess the biological activity in tumor and surrogate tissues. The trial will enroll at least 25 evaluable patients.

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Key information

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Confirmed High Grade Serous Ovarian Cancer, and positive nuclear immunohistochemical (IHC) staining for p53
  • Disease Progression between 4 weeks - 6 months after the last platinum-based treatment was administered
  • At least a single measurable lesion
  • Adequate organ function prior to registration
  • Toxicities from previous cancer therapies (excluding alopecia) must have recovered to grade 1 (defined by National Cancer Institute [NCI] Common Terminology Criteria for Adverse Events [CTCAE] version 4.0). Chronic stable grade 2 peripheral neuropathy secondary to neurotoxicity from prior therapies may be considered on a case by case basis
  • ECOG performance status of 0 to 2

Exclusion criteria

  • Prior exposure to cumulative doses of doxorubicin >400 mg/m2 or epirubicin >720 mg/m2
  • Hypersensitivity to PLD or to any of the excipients
  • Unable to undergo imaging by either CT scan or MRI
  • Evidence of any other medical conditions (such as psychiatric illness, infectious diseases, neurological conditions, physical examination or laboratory findings) that may interfere with the planned treatment, affect patient compliance or place the patient at high risk from treatment related complications
  • Concurrent malignancy requiring therapy (excluding non-invasive carcinoma or carcinoma in situ)
  • Is taking concurrent (or within 4 weeks prior to registration) chemotherapy, immunotherapy, radiotherapy, or any ancillary therapy that is considered to be investigational (i.e., used for non-approved indications(s) and in the context of a research investigation). Supportive care measures are allowed. Palliative limited radiation therapy for pain reduction is allowed

Treatment and study plan

APR-246

Drug

Intravenous infusion

Pegylated Liposomal Doxorubicin Hydrochloride (PLD)

Drug

Intravenous infusion

Primary outcomes

  1. Overall Response Rate (ORR)

    Time frame: Up to 18 months

    Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Secondary outcomes

  1. Treatment-emergent Adverse Events With Combined APR-246 and PLD Regimen

    Time frame: Treatment emergent adverse events (TEAEs) were defined as AEs that occurred on or after the first dose of study medication up to and including 30 days after last dose. Median number of 28d Cycles=2.5 (Min = 1, Max = 14)

    Treatment emergent adverse events (TEAEs) were defined as AEs that occurred on or after the first dose of study medication up to and including 30 days after last dose. AEs were graded according to NCI CTCAE (Version 4.0). Patients with multiple TEAEs were only counted once within a summary category: SOC, PT, maximum grade, or relationship to treatment. Patients with events in more than one category were counted once within each category.

Sponsors and collaborators

Lead sponsor

Aprea Therapeutics

Industry

Registry information

Official study title

PiSARRO-R: p53 Suppressor Activation in Platinum-Resistant High Grade Serous Ovarian Cancer, a Phase II Study of Systemic Pegylated Liposomal Doxorubicin Chemotherapy With APR-246

Important dates

Study start
2017
Primary completion
2019
Study completion
2019
First posted
Aug 31, 2017
Registry last updated
Mar 17, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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