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Study of REGN3767 (Anti-LAG-3) With or Without REGN2810 (Anti-PD1) in Advanced Cancers

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ClinicalTrials.gov Identifier: NCT03005782
Recruitment Status : Active, not recruiting
First Posted : December 29, 2016
Last Update Posted : August 30, 2022
Sponsor:
Collaborator:
Sanofi
Information provided by (Responsible Party):
Regeneron Pharmaceuticals

Study Description
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Brief Summary:

The primary objectives in the dose escalation phase are to evaluate safety and pharmacokinetics (PK) in order to determine the selected dose level(s) for expansion of REGN3767 as monotherapy and in combination with cemiplimab in patients with advanced malignancies, including lymphoma.

The primary objectives in the dose expansion phase are to assess preliminary anti-tumor activity of REGN3767 alone and in combination with cemiplimab (separately by cohort) as measured by objective response rate (ORR).


Condition or disease Intervention/treatment Phase
Malignancies Drug: REGN3767 Drug: cemiplimab Phase 1

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 333 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Phase 1, Open-Label, Dose-Escalation and Cohort Expansion First-in-Human Study of the Safety, Tolerability, Activity and Pharmacokinetics of REGN3767 (Anti-LAG-3 mAb) Administered Alone or in Combination With REGN2810 (Anti-PD-1 mAb) in Patients With Advanced Malignancies
Actual Study Start Date : November 7, 2016
Estimated Primary Completion Date : January 27, 2025
Estimated Study Completion Date : January 27, 2025
Arms and Interventions
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Arm Intervention/treatment
Experimental: Monotherapy (REGN3767)
Group A will consist of up to 4 sequential dose cohorts. Each cohort will receive 1 of 3 ascending dose levels of study drug during dose escalation. In addition 1 tumor-specific cohort will be treated at the recommended phase 2 dose (RP2D) during dose expansion.
 Drug: REGN3767
Other Name: fianlimab
Experimental: Combination Therapy (REGN3767+cemiplimab)
Group B will consist of up to 4 sequential dose cohorts. Each cohort will receive 1 of 3 ascending dose levels of study drug during dose escalation. In addition, 9 tumor-specific cohorts will be treated at the RP2D during dose expansion
 Drug: REGN3767
Other Name: fianlimab

Drug: cemiplimab
Other Name: REGN2810


Outcome Measures
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Primary Outcome Measures :
  1. Rate of dose limiting toxicities (Dose Escalation Phase) [ Time Frame: Baseline to 28 days ]
  2. Rate of adverse events (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  3. Rate of serious adverse events (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  4. Occurrence of death (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  5. Number of patients with laboratory abnormalities (grade 3 or higher per Common Terminology Criteria for Adverse Events [CTCAE]) (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  6. Area under the curve (AUC) computed from time zero to the time of the last concentration [AUCall] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  7. AUCall-to-dose ratio [AUCall/Dose] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  8. AUC from time zero extrapolated to infinity [AUCinf] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  9. AUCinf-to-dose ratio [AUCinf/dose] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  10. AUC computed from time zero to the time of the last positive concentration [AUClast] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  11. AUClast-to-dose ratio [AUClast/dose] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  12. Clearance [CL] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  13. Maximum Plasma Concentration [Cmax] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to week 51 ]
  14. Cmax-to-dose ratio [Cmax/dose] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  15. Last positive (quantifiable) concentration [Clast] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  16. Mean residence time extrapolated to infinity [MRTinf] (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  17. Mean residence time when the drug concentration profile is based on values up to and including the last positive concentration [MRTlast] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  18. Observed terminal half-life [t1/2] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  19. t1/2 beta (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  20. Time of the last positive (quantifiable) concentration [tlast] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  21. Time to Cmax [tmax] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  22. Volume of distribution at steady state [Vss] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  23. Volume of distribution of the terminal phase [Vz] (Primary: Dose Escalation Phase; Secondary: Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  24. Objective response rate based on RECIST 1.1 for Solid Tumors (Dose Expansion phase) [ Time Frame: Baseline to 51 weeks ]
  25. Objective response rate by Lugano criteria for Lymphoma (Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]

Secondary Outcome Measures :
  1. Objective response rate per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 (solid tumors) (Dose Escalation Phase) [ Time Frame: Baseline to week 51 ]
  2. Objective response rate per Lugano criteria (lymphomas) (Dose Escalation Phase) [ Time Frame: Baseline to week 51 ]
  3. Best overall response based on RECIST 1.1 criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  4. Best overall response based on irRECIST criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  5. Best overall response based on Lugano criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  6. Duration of response based on RECIST criteria (Dose Escalation Phase) [ Time Frame: Baseline to week 51 ]
  7. Duration of response based on irRECIST criteria (Dose Escalation Phase) [ Time Frame: Baseline to week 51 ]
  8. Duration of response based on Lugano criteria (Dose Escalation Phase) [ Time Frame: Baseline to week 51 ]
  9. Disease control rate based on RECIST criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  10. Disease control rate based on irRECIST criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  11. Disease control rate based on Lugano criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  12. Progression free survival based on RECIST (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  13. Progression free survival based on irRECIST (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  14. Progression free survival based on Lugano criteria (Dose Escalation Phase) [ Time Frame: Baseline to 51 weeks ]
  15. Incidence of adverse events (Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  16. Incidence of serious adverse events (Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  17. Incidence of death (Dose Expansion Phase) [ Time Frame: From Baseline to the date of first documented progression or date of death from any cause, whichever comes first, assessed up to 42 months ]
  18. Number of patients with laboratory abnormalities (grade 3 or higher per Common Terminology Criteria for Adverse Events [CTCAE]) (Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]
  19. Incidence of anti-drug antibodies (Dose Escalation Phase and Dose Expansion Phase) [ Time Frame: Baseline to 51 weeks ]

Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Key Inclusion Criteria:

  • Dose escalation cohorts: Patients with histologically or cytologically confirmed diagnosis of malignancy (including lymphoma) with demonstrated progression of a tumor for whom there is no available therapy likely to convey clinical benefit AND who have not been previously treated with a PD-1/PD-L1 inhibitor. These patients do not require measurable disease
  • Dose expansion cohorts: Patients with histologically or cytologically confirmed diagnosis of 1 of specified tumors with measurable disease per RECIST 1.1 or Lugano criteria. Some patients may have been previously treated with a PD-1 or PD-L1 inhibitor
  • Eastern Cooperative Oncology Group performance status of 0 or 1
  • Adequate organ and bone marrow function

Key Exclusion Criteria:

  • Prior treatment with any LAG-3 targeting biologic or small molecule
  • Radiation therapy within 2 weeks prior to randomization and not recovered to baseline from any AE due to radiation
  • Untreated or active central nervous system metastases - Ongoing or recent (within 5 years) evidence of significant autoimmune disease
  • Corticosteroid therapy (>10 mg prednisone/day or equivalent) within 1 week prior to the first dose of study drug
  • Myocardial infarction within 6 months

Note: Other protocol defined Inclusion / Exclusion criteria apply

Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03005782


Locations
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Sponsors and Collaborators
Regeneron Pharmaceuticals
Sanofi
Investigators
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Study Director: Clinical Trial Management Regeneron Pharmaceuticals
More Information
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Responsible Party: Regeneron Pharmaceuticals
ClinicalTrials.gov Identifier: NCT03005782    
Other Study ID Numbers: R3767-ONC-1613
2016-002789-30 ( EudraCT Number )
First Posted: December 29, 2016    Key Record Dates
Last Update Posted: August 30, 2022
Last Verified: August 2022
Additional relevant MeSH terms:
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Neoplasms
Cemiplimab
Antineoplastic Agents, Immunological
Antineoplastic Agents