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Completed

NCT Number: NCT02762981

Study to Evaluate Relacorilant (CORT125134) in Combination With Nab-paclitaxel in Participants With Solid Tumors

The purpose of this study was to assess the safety of the combination of relacorilant (CORT125134), a novel glucocorticoid receptor (GR) antagonist, and nab- paclitaxel in participants with solid tumors and to determine the preliminary efficacy of the combination of relacorilant and nab-paclitaxel. The structure for the study was a single arm, non-randomized, open- label, multicenter trial with no control group.

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Key information

About this study

The study consisted of two segments to evaluate alternative dosing schedules of relacorilant administered at escalating dose levels. Segment I was to evaluate a continuous-dosing regimen and Segment II was to evaluate an intermittent-dosing regimen. Enrollment in Segment I and Segment II were mutually exclusive, and the two segments enrolled participants concurrently.

In Segment I continuous-dosing cohorts, participants received a single nab-paclitaxel lead-in infusion on Day 1 of Week -2 before Cycle 1, and oral relacorilant lead-in once-daily of Week -1 before Cycle 1. After the Data Review Committee review of data for 2 dose levels, the nab-paclitaxel lead-in was discontinued. The lead-in period was followed by oral relacorilant administered continuously once daily, in combination with nab-paclitaxel infusions on Days 1, 8, and 15 of each 28-day cycle. Segment 1 enrolled a total of 64 participants.

In Segment II intermittent-dosing cohorts, participants received a single relacorilant lead-in dose on Day -1 before Cycle 1, followed by oral relacorilant, administered intermittently the day before, the day of, and the day after nab-paclitaxel infusions on Days 1, 8, and 15 of each 28-day cycle. Segment II enrolled a total of 21 participants.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Participants with advanced or metastatic solid tumors who have disease progression after treatment with available therapies and for whom nab-paclitaxel treatment is appropriate.
  • Measurable or evaluable disease.
  • Up to 3 prior cytotoxic chemotherapeutics regimens or myelosuppressive therapies in the advanced setting.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
  • For Part 2 Only: Platinum-resistant ovarian, fallopian tube, or primary peritoneal cancer, or Triple Negative Breast Cancer with measurable disease as defined by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 in at least 1 lesion, that in the opinion of the Investigator is appropriate to treat with nab-paclitaxel.

Exclusion criteria

  • Any major surgery within 4 weeks prior to the first dose of study drug.
  • Some protocol specified treatments prior to the first dose of study drug.

Treatment and study plan

Relacorilant with nab-paclitaxel

Drug

Relacorilant is supplied as capsules for oral dosing. Nab-paclitaxel administered as an IV infusion.

Other names: Abraxane, Nanoparticle albumin-bound paclitaxel, CORT125134

Primary outcomes

  1. Number of Participants With Dose-limiting Toxicity

    Time frame: Up to completion of Cycle 1 (up to 28 days)

    The Maximum Tolerated Dose and the development regimen of relacorilant with nab-paclitaxel was determined by the number of participants with dose-limiting toxicities as defined in the protocol.

Secondary outcomes

  1. Number of Participants With One or More Adverse Events Related to Treatment With Relacorilant

    Time frame: Up to 28 days after the last dose of study drug (Segment I: up to approximately 2.5 years, Segment II: up to approximately 1.5 years)

    Adverse events were assessed by the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03.

Other outcomes

  1. Objective Response Rate

    Time frame: Up to 512 days

    Objective response rate is defined by the Response Evaluation Criteria in Solid Tumors (RECIST v1.1) as best response of complete response (CR) or partial response (PR) from the start of relacorilant or nab-paclitaxel, whichever is earliest, across all time points during study observation period (including both confirmed and unconfirmed responses).

  2. Clinical Benefit Rate

    Time frame: Up to 512 days

    Clinical benefit rate is defined as the participants who have achieved CR or PR (including both confirmed and unconfirmed responses), or stable disease for 16 weeks or greater.

  3. Duration of Response

    Time frame: From the time of response up to the last disease assessment (up to 512 days)

    Duration of response (DOR) is defined as the date that criteria are met for CR or PR until the first date that progressive disease or death is objectively documented, whichever occurs first. Participants with no documentation of disease progression or death on-study are censored at the date of last available tumor assessment

  4. Progression-free Survival

    Time frame: Up to 512 days

    Progression-free survival is defined as the time from date of first dose of relacorilant or nab-paclitaxel, whichever is earliest, to the date of documented disease progression per RECIST v1.1 or death for any cause, whichever occurs first. Participants with no documentation of disease progression or death on-study are censored at the date of last available tumor assessment.

  5. Overall Survival

    Time frame: Up to 512 days

    Overall survival is defined as the time from date of the first dose of relacorilant or nab paclitaxel, whichever is earliest, to the date of death for any cause. Participants with no documentation of death on-study are censored at the date at which they are last known to be alive.

  6. Best Response Rate in Participants With Tumor Glucocorticoid Receptor (GR) Above or Below the Median Overall Level

    Time frame: Up to 512 days

    Best response is defined by RECIST v1.1 as the best response recorded from the date of the first dose of relacorilant or nab-paclitaxel, whichever is earliest, across all time points during study observation period (including both confirmed and unconfirmed responses).

  7. Pharmacokinetics: Area Under the Concentration-time Curve From Zero to 24 Hours (AUC0-24) of Plasma Relacorilant

    Time frame: Segment I: before dosing and up to 24 hours after dosing on Cycle 1 Day 8; Segment II: before dosing and up to 24 hours after dosing on Cycle 1 Day 1

  8. Pharmacokinetics: AUC0-24 of Plasma Nab-Paclitaxel

    Time frame: Segment I: before dosing and up to 24 hours after dosing on Cycle 1 Day 8; Segment II: before dosing and up to 24 hours after dosing on Cycle 1 Day 1

  9. Pharmacokinetics: Maximum Concentration (Cmax) of Plasma Relacorilant

    Time frame: Segment I: before dosing and up to 24 hours after dosing on Cycle 1 Day 8; Segment II: before dosing and up to 24 hours after dosing on Cycle 1 Day 1

  10. Pharmacokinetics: Cmax of Plasma Nab-Paclitaxel

    Time frame: Segment I: before dosing and up to 24 hours after dosing on Cycle 1 Day 8; Segment II: before dosing and up to 24 hours after dosing on Cycle 1 Day 1

Sponsors and collaborators

Lead sponsor

Corcept Therapeutics

Industry

Registry information

Official study title

Phase 1/2 Study of CORT125134 in Combination With Nab-paclitaxel in Patients With Solid Tumors

Important dates

Study start
2016
Primary completion
2020
Study completion
2020
First posted
May 5, 2016
Registry last updated
Dec 6, 2022

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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