A Study of GV20-0251 Monotherapy and GV20-0251 in Combination with Pembrolizumab in Participants with Solid Tumor Malignancies

Purpose

This is a Phase 1/2A study of GV20-0251 being developed for the treatment of participants with advanced solid tumors, who are refractory to approved therapies or other standard of care.

Conditions

  • Solid Tumor, Adult
  • Refractory Cancer
  • Endometrial Carcinoma (EC)
  • Squamous Head and Neck Carcinoma
  • PMMR/MSS Adenocarcinoma of the Colon or Rectum
  • Cutaneous Melanoma
  • Non-Small Cell Lung Cancer

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Participants ≥18 years of age - Previously treated, histologically-confirmed advanced solid malignancy with progressive disease requiring therapy - Refractory or intolerant to standard therapy(ies) - Must have received, be not eligible or decline standard of care therapy - Participants must have measurable disease per Response Evaluation Criteria in Solid Tumors (RECIST version 1.1) - For participants who have received prior treatment with a checkpoint inhibitor there must be documented disease progression - ECOG performance status of 0 or 1 - Life expectancy of ≥ 12 weeks in Parts A and C and ≥ 24 weeks in Parts B and D - Participants must be willing to provide fresh tumor biopsy (core biopsy) both pre-treatment (Parts A, B, C and D) and on-treatment (Parts A and B), if clinically feasible - Disease-free of active second/secondary or prior malignancies for ≥ 2 years - Laboratory test results within the required parameters - Women of child bearing potential (WOCBP) and men must agree to use adequate contraception - Parts B, C and D may include the following tumor types: - Endometrial carcinoma - Squamous head and neck carcinoma - Cutaneous melanoma - Non-small cell lung cancer - Proficient MMR (pMMR)/MSS adenocarcinoma of the colon or rectum (Parts C and D only) Parts A, B, C and D

Exclusion Criteria

  • Participant with acute leukemia or CLL (Parts A and B only) - Participant with heart disease or unstable arrhythmia - Active, uncontrolled bacterial, viral, or fungal infections requiring systemic therapy - Participant has active autoimmune disease or other medical conditions requiring chronic systemic steroid or immunosuppressive therapy - History of major organ transplant - History of a bone marrow transplant - Symptomatic central nervous system (CNS) malignancy or metastasis - Serious nonmalignant disease - Pregnant or nursing women - Treatment with PD-1 and equivalent immune modulators or major surgery prior to the first dose of study medication - Participants who are currently receiving any other investigational agent or have received an investigational agent within 4 weeks prior to the first dose of study medication - Treatment with any anticancer treatments with 2-weeks prior to the first dose of study medication - Radiation for symptomatic lesions must have been completed prior to the first dose of study medication - Participants with liver metastases unless approved by the Sponsor - Any history of an immune related ≥ Grade 3 AE attributed to prior cancer immunotherapy - Has a known additional malignancy that is progressing or has required active treatment within the past 2 years from C1D1 - Has received radiation therapy to the lung that is higher than 30 Gy within 6 months prior to C1D1 for NSCLC (Parts C and D only) - Has a known additional malignancy that is progressing or has required active treatment within the past 2 years from C1D1 (Parts C and D only) - Has severe hypersensitivity ( ≥ Grade 3) to Pembrolizumab and/or any of its excipients (Parts C and D only) - Has a history of (non-infectious) pneumonitis / interstitial lung disease that required steroids or has current pneumonitis / interstitial lung disease (Parts C and D only) - Has a condition, therapy, laboratory abnormality, or circumstance that could confound study results or interfere with full participation, making it unsuitable for the participant, as determined by the treating Investigator (Parts C and D only) - Active substance abuse

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Sequential Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Part A - Dose Escalation in up to 7 dose levels 		A 3+3 dose escalation scheme will be used to evaluate the safety and tolerability of GV20-0251, and to establish the maximum tolerated dose (MTD) or the preliminary recommended Phase 2 dose (RP2D).
  • Biological: GV20-0251
    Increasing doses of GV20-0251 administered by intravenous (IV) infusion once or twice every 3 weeks as monotherapy.
Experimental
Part B - Multiple Expansion Cohorts in up to 4 tumor indications 		The Bayesian optimal design for Phase II (BOP2) will be utilized to further characterize the anti-tumor activities, safety, tolerability, pharmacokinetics, and pharmacodynamics of GV20-0251 at the preliminary RP2D in up to 4 expansion cohorts involving eligible participants.
  • Biological: GV20-0251
    GV20-0251 preliminary RP2D administered by IV infusion as monotherapy.
Experimental
Part C - GV20-0251 in Combination with Pembrolizumab Dose Escalation in 2-4 dose levels 		The Bayesian optimal interval (BOIN) design will be employed to evaluate the safety and tolerability of GV20-0251 in combination with pembrolizumab, and to determine the MTD or the preliminary RP2D of this combination in selected tumor indications.
  • Biological: GV20-0251 and Pembrolizumab [KEYTRUDA®]
    GV20-0251 administered by IV infusion at 10 mg/kg once every 3 weeks or at increasing doses up to the preliminary RP2D determined in Part A. 200 mg pembrolizumab administered by IV infusion once every 3 weeks.
    Other names:
    • MK-3475
Experimental
Part D - GV20-0251 in Combination with Pembrolizumab Dose Expansion in up to 5 indications 		The BOP2 will be applied to further characterize the anti-tumor activities, safety, tolerability, pharmacokinetics, and pharmacodynamics of GV20-0251 in combination with pembrolizumab at the preliminary RP2D in up to 5 expansion cohorts involving eligible participants.
  • Biological: GV20-0251 and Pembrolizumab [KEYTRUDA®]
    GV20-0251 administered by IV infusion at preliminary RP2D from Part C. 200 mg pembrolizumab administered by IV infusion once every 3 weeks.
    Other names:
    • MK-3475

Recruiting Locations

Massachusetts General Hospital
Boston, Massachusetts 02114
Contact:
GV20 Therapeutics
clinicaltrials@gv20tx.com

More Details

Status
Recruiting
Sponsor
GV20 Therapeutics

Study Contact

GV20 Therapeutics
617-256-2846
clinicaltrials@gv20tx.com

Detailed Description

This is a Phase 1/2A non-randomized, open label, multi-center study to be conducted in four parts (Parts A, B, C and D). In Part A, a 3+3 dose escalation scheme will be used to evaluate the safety and tolerability of GV20-0251, and to establish the maximum tolerated dose (MTD) or the preliminary recommended Phase 2 dose (RP2D). In Part B, the Bayesian optimal design for Phase II (BOP2) will be utilized to further characterize the anti-tumor activities, safety, tolerability, pharmacokinetics, and pharmacodynamics of GV20-0251 at the preliminary RP2D across multiple expansion cohorts involving eligible participants. In Part C, the Bayesian optimal interval (BOIN) design will be employed to evaluate the safety and tolerability of GV20-0251 in combination with Pembrolizumab, and to determine the MTD or the preliminary RP2D of this combination. In Part D, BOP2 will be applied to further characterize the anti-tumor activities, safety, tolerability, pharmacokinetics, and pharmacodynamics of GV20-0251 in combination with Pembrolizumab at the preliminary RP2D across multiple expansion cohorts involving eligible participants.