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Study of REM-422 in Patients With Recurrent, Metastatic, or Unresectable Adenoid Cystic Carcinoma

A Phase 1/2, Multicenter, Open-label Study of REM-422, a MYB mRNA Degrader, in Patients With Recurrent, Metastatic, or Unresectable Adenoid Cystic Carcinoma

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06118086
Enrollment
125
Registered
2023-11-07
Start date
2023-12-20
Completion date
2027-09-30
Last updated
2026-06-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adenoid Cystic Carcinoma, Metastatic Adenoid Cystic Carcinoma, Recurrent Adenoid Cystic Carcinoma

Brief summary

The goal of this study is to determine the safety and antitumor effects of REM-422, a MYB mRNA degrader, in people with advanced Adenoid Cystic Carcinoma (ACC)

Detailed description

This is a Phase 1/2, open-label, non-randomized, multicenter study investigating REM-422, a potent, selective, and oral small molecule mRNA degrader that reduces expression of the MYB transcription factor for patients with recurrent, metastatic, or unresectable ACC. This study includes a Dose Escalation Phase and a Confirmatory Cohort phase. The purpose of the Dose Escalation Phase is to determine the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of REM-422 in patients with recurrent or metastatic ACC. The purpose of the Confirmatory Cohort is to further evaluate the safety and anti-tumor activity of the RP2D carried forward from Dose Escalation in patients with recurrent, metastatic, or unresectable ACC. Participation in this study will continue until disease progression, therapy intolerance, or participant withdrawal.

Interventions

* REM-422 is a first in class, small molecule mRNA inhibitor that reduces expression of the MYB transcription factor * REM-422 will be administered orally once daily

Sponsors

Remix Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Be able to provide informed consent. 2. Be 18 years or older at the time of informed consent. 3. Disease criteria: 1. Histologically confirmed ACC, any site of origin. 2. Dose Escalation phase ONLY: * Have locally advanced or metastatic ACC * Evidence of radiographic progression and/or signs and symptoms associated with their disease (eg, pain, dyspnea, reduced performance status). Participants who have stable disease while being treated with another agent that is not tolerated are eligible after the appropriate washout period. 3. Confirmatory Cohort phase ONLY: * Have metastatic, recurrent, or unresectable ACC * Measurable disease at the time of enrollment. At least 1 measurable lesion according to RECIST v1.1 criteria. Participants must have radiographic evidence of disease progression by RECIST v1.1 criteria ≤ 6 months prior to study enrollment. Radiographic eligibility as determined by Central IUO assay. * MYB poison exon biomarker positive tumor(s) confirmed by central IUO assay. 4. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 5. Tumor Tissue Requirements 1. Dose Escalation Phase ONLY: be able to provide during Screening a tissue specimen of either a fresh biopsy of a non-target lesion or an archival tumor sample obtained within the last 6 years. A formalin-fixed paraffin-embedded (FFPE) block can be submitted or a minimum of 15 freshly sectioned unstained slides. Agree to an on-treatment biopsy to be obtained \~4-8 weeks after initiation of REM-422 unless medically contraindicated. 2. Confirmatory Cohort phase ONLY: be able to provide, during Pre-Screening, a tissue specimen of either a fresh biopsy of non-targetable lesion or an archival tumor sample obtained within the last 6 years that is interpretable for the biomarker positivity. An FFPE block can be submitted or a minimum of 15 fresh sectioned unstained slides. 6. At least 3 weeks since prior systemic non-investigational therapy at the time of start of REM- 422. 7. Toxicities from prior therapy must be stable or recovered to ≤ Grade 1. Note: Stable chronic and clinically non-significant conditions (≤ Grade 2) that are not expected to resolve are exceptions (eg, neuropathy, myalgia, alopecia, prior therapy-related endocrinopathies, etc.), and patients with these conditions may enroll. 8. Participants must be able to swallow and retain oral medications. 9. Oxygen saturation \> 92% on room air or up to 2 L/min supplemental oxygen by nasal cannula with ≤ Grade 1 dyspnea. 10. Participants of childbearing potential (POCBP) must have a negative serum beta-human chorionic gonadotropin test result. 11. Participants Of Child Bearing Potential must agree to use acceptable, effective methods of contraception as outlined in Appendix 1 and not donate ova from Screening until 6 months after discontinuation of REM- 422. Women who have undergone surgical or ablative sterilization or who have been postmenopausal for ≥ 2 years are not considered to be of childbearing potential. 12. Men must agree to use acceptable, effective methods of contraception and must agree not to donate sperm from the start of receiving REM-422 until 6 months after discontinuation of REM-422. 13. Adequate bone marrow, organ function and laboratory parameters

Exclusion criteria

1. Known hypersensitivity or contraindication to any component of REM-422 or to drugs chemically related to REM-422 or its excipients. 2. Clinically significant active infection. Simple urinary tract infection, uncomplicated bacterial pharyngitis responding to active treatment are permitted. Participants receiving intravenous antibiotics ≤ 7 days prior to enrollment are excluded (prophylactic antibiotics, antivirals or antifungals are permitted). 3. Evidence of active HIV infection. 4. Evidence of currently active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. 5. Primary immunodeficiency. 6. Current or expected need for daily systemic corticosteroid therapy ≥ 10 mg of prednisone equivalent. Topical or inhaled corticosteroids with minimal systemic absorption may enroll and continue minimal corticosteroids if the participant is on a stable dose. 7. Live vaccine ≤ 6 weeks prior to the start of REM-422. 8. Use of strong CYP3A inhibitors or CYP3A inducers 9. Drugs that reduce gastric acidity, such as H2-receptor antagonists (eg, ranitidine, famotidine) and proton pump inhibitors (e.g., omeprazole, esomeprazole) within 7 days prior to the initiation of REM-422 administration or during the study 10. Pregnancy or participants planning to become pregnant during the duration of the study, or lactation. 11. Participants with malabsorption syndrome, a disease significantly affecting gastrointestinal function, or resection of the stomach or bowel. 12. Current use of prohibited medication ≤ 1 week before starting REM-422. 13. Clinically significant cardiovascular disease: 14. Participants who have undergone major surgery (opening a mesenchymal barrier such as the pleural cavity, peritoneum, meninges, or surgical procedures requiring general anesthesia) \< 4 weeks prior to enrollment. 15. History of organ transplant that requires use of immunosuppressive agents. 16. History or current autoimmune disease (eg, Crohn's disease, ulcerative colitis, rheumatoid arthritis, systemic lupus). 17. Radiation therapy ≤ 7 days prior to the start of REM-422. 18. Concurrent or previous other malignancy (other than adenoid cystic carcinoma, hematologic malignancies, or primary central nervous system \[CNS\] malignancies) ≤ 2 years of enrollment, except curatively treated malignancies including basal or squamous cell skin cancer, prostate intraepithelial neoplasm, carcinoma in situ of the cervix. 19. Participants receiving any other investigational treatment for any indication ≤ 3 weeks prior to enrollment. 20. Unwillingness or inability to follow protocol requirements. 21. Any condition that, in the opinion of the Investigator, would interfere with evaluation of REM-422 or interpretation of the participant's safety or study results.

Design outcomes

Primary

MeasureTime frameDescription
Frequency and severity of Treatment Emergent Adverse Events (TEAEs)18 monthsFrequency and severity of Treatment Emergent Adverse Events (TEAEs) will be evaluated according to the NCI-CTCAE version 5.0 and number of participants with Dose Limiting Toxicities will be assessed to determine Safety and Tolerability of REM-422
Overall Response Rate (ORR) in Phase 2 Confirmatory Cohort18 monthsORR will be evaluated using the revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline version 1.1 following treatment with REM-422
Maximum Tolerated Dose (MTD) and/or Recommended Phase 2 Dose (RP2D)Assessed at the end of Cycle 1 for each participantFrequency and severity of Treatment Emergent Adverse Events (TEAEs) will be evaluated according to the NCI-CTCAE version 5.0 and the number of participants with Dose Limiting Toxicities will be assessed

Secondary

MeasureTime frameDescription
Median Progression Free Survival (mPFS)6 months, 12 monthsPFS will be evaluated using the revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline version 1.1 following treatment with REM-422
Duration of Response (DoR)18 monthsDoR will be evaluated using the revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline version 1.1 following treatment with REM-422
Time to Response (mTTR)18 monthsTTR will be evaluated using the revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline version 1.1 following treatment with REM-422
Disease Control Rate (DCR)6 monthsDCR will be evaluated using the revised Response Evaluation Criteria in Solid Tumors (RECIST) guideline version 1.1 following treatment with REM-422
Median Overall Survival (mOS)18 monthsmOS will be evaluated after treatment with REM-422
Determine pharmacokinetic profile (Cmax) of REM-42218 monthsMeasure Maximal concentration (Cmax) of REM-422
Determine pharmacokinetic profile (Cmin) of REM-42218 monthsMeasure Minimal concentration (Cmin) of REM-422
Determine pharmacokinetic profile (Tmax) of REM-42218 monthsMeasure Time to peak drug concentration (Tmax) of REM-422
Determine pharmacokinetic profile (AUC) of REM-42218 monthsMeasure Area Under the Curve (AUC) of REM-422

Countries

France, United States

Contacts

CONTACTRemix Therapeutics
ClinicalTrials@remixtx.com781-827-0902
CONTACTRosalie Jiang
rjiang@remixtx.com781-584-9390
STUDY_CHAIRMythili Koneru, MD, PhD

Remix Therapeutics

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 25, 2026