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Clinical Trials/NCT06577987
NCT06577987
Recruiting
Phase 1

A Phase 1, Open-Label, Multicenter Study to Evaluate the Safety and Efficacy of the Oral Cyclin A/B-RxL Inhibitor CID-078 in Patients With Advanced Solid Tumor Malignancies

Circle Pharma10 sites in 1 country220 target enrollmentAugust 14, 2024

Overview

Phase
Phase 1
Intervention
CID-078 Monotherapy
Conditions
Not specified
Sponsor
Circle Pharma
Enrollment
220
Locations
10
Primary Endpoint
Part 1: Incidence of Treatment Related Adverse Events (TRAEs) based on CTCAE v5.0.
Status
Recruiting
Last Updated
7 months ago

Overview

Brief Summary

This is a first-in-human, multicenter, open-label, phase 1 study to evaluate safety, tolerability, and efficacy of CID-078, a Cyclin A/B-RxL inhibitor, in patients with advanced solid tumors.

Detailed Description

This is a first-in-human, multicenter, open-label, phase 1 study to evaluate safety, tolerability, and efficacy of CID-078, a Cyclin A/B-RxL (Arginine-any amino acid-lysine) inhibitor, in patients with advanced solid tumors. The study will be conducted at approximately 20 centers. CID-078 will be evaluated as an oral therapeutic. This study is divided into three parts: Part 1a Dose Escalation, Part 1b New Formulation Dose Escalation/Pilot Food Effect and Part 2 Dose Expansion. Part 1a will evaluate safety, tolerability, pharmacokinetics and pharmacodynamics of CID-078, and identify recommended dose for expansion (RDE) of CID-078 using a Backfill Bayesian Optimal Interval design. Dose escalation will occur sequentially over several dose levels. Part 1b will evaluate the safety and tolerability of a new CID-078 oral formulation, investigate the pharmacokinetic exposure between the original and new CID-078 formulations, and evaluate the effect of food on CID-078 pharmacokinetics. Part 1b will be initiated upon availability of the new CID-078 oral formulation. Part 2 is a Dose Expansion. Upon identification of the RDE as determined by the SRC, CID-078 will be further evaluated for it's antitumor activity/efficacy along with characterization of it's safety, tolerability, pharmacokinetics, and pharmacodynamics in three tumor specific cohorts: TNBC, SCLC, and solid tumors harboring a RB1 alteration or Rb protein LoF; with an additional possible cohort expansion of N=20 for either TNBC or RB1-altered solid tumor cohort based on data observed. The study consists of a 28-day Screening Period, a Treatment Period, an End of Treatment (EOT) Visit, and a Safety Follow-up Visit. After confirming eligibility, patients enter the Treatment Period that consists of repeating 21-day treatment cycles. Study drug treatment cycles will continue for as long as the patient does not meet study drug discontinuation criteria. Within 7 days of the last dose of study drug or the decision to withdraw from the study, patients will undergo an EOT visit and a Safety Follow-Up visit 28 days after the EOT visit.

Registry
clinicaltrials.gov
Start Date
August 14, 2024
End Date
March 14, 2027
Last Updated
7 months ago
Study Type
Interventional
Study Design
Single Group
Sex
All

Investigators

Sponsor
Circle Pharma
Responsible Party
Sponsor

Eligibility Criteria

Inclusion Criteria

  • A patient must meet all of the following inclusion criteria to be eligible to participate in this study.
  • Solid tumor malignancy meeting the following criteria:
  • Part 1a Dose Escalation and Part 1b New Formulation Dose Escalation/Pilot Food Effect Cohort: locally advanced or metastatic solid tumor malignancy that has progressed or was non responsive to available therapies and for which no standard or available curative therapy exists.
  • Part 1a and Part 1b Backfill: patients with TNBC, SCLC, and solid tumors harboring a RB1 or CDKN2A/B loss genomic alteration or Rb protein LoF. Additional tumor types or genomic alterations may be considered by the SRC as data become available. Patient must have progressed or was non-responsive to available therapies and for which no standard or available curative therapy exists
  • Measurable disease per RECIST v1.
  • Age ≥ 18 years.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-
  • Life expectancy \> 12 weeks.
  • Able to undergo a fresh biopsy if medically feasible.
  • Ability to swallow capsules by mouth.

Exclusion Criteria

  • A patient who meets any of the following exclusion criteria will be ineligible to participate in this study:
  • Treatment with any of the following:
  • Targeted therapy ≤ eight days or 5× the terminal phase elimination half-lives, whichever is shorter, prior to the first dose of study drug.
  • Systemic anticancer treatment (excluding targeted therapy as described above) ≤ 14 days prior to first dose of study drug.
  • Radiotherapy ≤ 28 days and palliative radiation ≤ 14 days prior to the first dose of study drug. If irradiated, lesions must have demonstrated clear-cut progression prior to being eligible for evaluation as target lesions.
  • Immunotherapy ≤ 28 days prior to the first dose of study drug.
  • Major surgery ≤ 28 days prior to the first dose of study drug.
  • Have any unresolved toxicity of Grade ≥ 2 from previous anti-cancer treatment, except for alopecia and skin pigmentation. Patients with chronic, but stable Grade 2 toxicities may be allowed to enroll after agreement between the Investigator and Sponsor Medical Monitor.
  • Have known or suspected brain metastases or spinal cord compression, unless the condition has been asymptomatic, treated with surgery and/or radiation, and has been stable without requiring escalating doses of corticosteroids or anti-convulsant medications for at least four weeks prior for the first dose of study drug.
  • Prior therapy with CID-

Arms & Interventions

Part 1a Dose Escalation, Part 1b New Formulation/Pilot Food Effect and Part 2 Dose Expansion

Intervention: CID-078 Monotherapy

Outcomes

Primary Outcomes

Part 1: Incidence of Treatment Related Adverse Events (TRAEs) based on CTCAE v5.0.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

Part 1: Incidence of Dose-Limiting Toxicities (DLTs).

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to end of cycle 1, up to 21 + 4 days.

Part 1: Incidence of Treatment Emergent Adverse Events (TEAEs) based on CTCAE v5.0.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

Part 1: To determine recommended dose(s) for expansion (RDEs) for evaluation for Part 2.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

The RDEs will be determined using all available information, including, but not limited to, AEs, dose-limiting toxicities, pharmacokinetic parameters, clinical laboratory tests, and efficacy measures observed in Part 1 Dose Escalation.

Part 2: Percentage of patients with confirmed objective response per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 Criteria in Solid Tumors.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

Part 2: Duration of confirmed objective response per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 Criteria in Solid Tumors.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

Part 2: Duration of disease progression free survival per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 Criteria in Solid Tumors.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

Part 2: To determine Provisional Recommended Phase 2 Dose (RP2D) for future dose optimization.

Time Frame: From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.

Provisional RP2D will be determined using all available information, including, but not limited to, Adverse Events (AEs), dose-limiting toxicities, pharmacokinetic parameters, clinical laboratory tests, and efficacy measures observed during the study.

Secondary Outcomes

  • Part 1: Duration of confirmed objective response per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 Criteria in Solid Tumors.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 1: Maximum plasma concentration (Cmax) of CID-078 in fasted and fed state.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 1: Duration of disease progression free survival per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 Criteria in Solid Tumors.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 1: Percentage of patients with confirmed objective response per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 Criteria in Solid Tumors.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 1: Time to maximum plasma concentration (Tmax) of CID-078 in fasted and fed state.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 1: Area under the concentration-time curve (AUC) of CID-078 in fasted and fed state.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 1 and Part 2: Terminal half-life (t1/2) of CID-078 in fasted and fed state.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 2: Incidence of Treatment Emergent Adverse Events (TEAEs) based on CTCAE v5.0.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)
  • Part 2: Incidence of Treatment Related Adverse Events (TRAEs) based on CTCAE v5.0.(From first dose of CID-078 on Cycle 0 Day 1/ Cycle 1 Day 1 (each cycle is 21 days) to 28 days after the last dose of study drug.)

Study Sites (10)

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Circle Pharma's Novel Cyclin Inhibitor Shows Promise Against E2F-Driven Cancers in Nature Study- Circle Pharma's CID-078, a first-in-class oral cyclin A/B RxL inhibitor, demonstrated robust anti-tumor activity in preclinical models, including chemotherapy-resistant small cell lung cancer xenografts. - The research published in Nature reveals a dual mechanism where the inhibitor blocks cyclin A-E2F interactions causing DNA damage, then disrupts cyclin B-Myt1 interactions forcing damaged cells through division to trigger death. - The oral macrocycle therapy targets historically undruggable cyclins and shows particular promise for E2F-driven cancers including small cell lung cancer, triple-negative breast cancer, and tumors with RB1 alterations. - CID-078 is currently being evaluated in a Phase 1 clinical trial for patients with advanced solid tumors harboring RB1 alterations.Circle Pharma's CID-078 Receives FDA Orphan Drug Designation for Small Cell Lung Cancer Treatment- Circle Pharma announced that the FDA has granted Orphan Drug Designation to CID-078 for treating small cell lung cancer, a highly aggressive cancer affecting 13-15% of lung cancer cases. - The designation provides seven years of market exclusivity upon approval, tax credits for clinical trials, and eligibility for FDA research grants to support development. - CID-078 is an orally bioavailable macrocycle that targets cyclin A and B proteins, with a Phase 1 clinical trial currently enrolling patients with advanced solid tumors. - Small cell lung cancer has a poor prognosis with high recurrence rates despite existing treatments, highlighting the urgent need for new therapeutic options.Circle Pharma to Reveal Dual Mechanism of Novel Cyclin A/B RxL Inhibitors at AACR 2025- Circle Pharma will present late-breaking data at AACR 2025 showing how their novel cyclin A/B RxL inhibitors disrupt DNA repair pathways and affect mitotic progression in E2F-high cancers. - The research, conducted in collaboration with University of Oxford and Dana-Farber Cancer Institute, reveals a dual mechanism by which these inhibitors induce tumor regression. - Circle Pharma's lead compound CID-078, an oral macrocycle cyclin A/B RxL inhibitor, is currently being evaluated in a Phase 1 clinical trial (NCT06577987) for patients with advanced solid tumors.