Sponsor: M.D. Anderson Cancer Center (other)
Phase: 2
Start date: Dec. 13, 2022
Planned enrollment: 40
Lorigerlimab (MGD019; AEX-1344) is an investigational, bispecific checkpoint inhibitor engineered on MacroGenics’ DART platform to simultaneously target PD‑1 and CTLA‑4. Early clinical data suggest antitumor activity with a manageable safety profile, and multiple phase 2 studies are ongoing. (ncbi.nlm.nih.gov, ascopubs.org, macrogenics.com)
mCRPC (phase 1 expansion; ASCO‑GU 2023 poster/abstract): - Among 35 RECIST‑evaluable patients, objective response rate (ORR) was 25.7% (9 confirmed partial responses); median duration of response 16.1 weeks (range 6–25+). PSA50 and PSA90 response rates were 28.6% (12/42) and 21.4% (9/42), respectively. (ascopubs.org)
Broader phase 1 experience: - The dose‑escalation publication reported acceptable safety, pharmacodynamic evidence of dual blockade, and objective responses across multiple tumor types that are often insensitive to checkpoint inhibition (details by tumor type not fully enumerated in the paper). (ncbi.nlm.nih.gov)
Note: No randomized efficacy readout has been reported as of September 2, 2025; LORIKEET results are pending. (ir.macrogenics.com)
Links above point to meeting abstracts, peer‑reviewed publications, and sponsor disclosures for additional details.
Last updated: Sep 2025
Goal: Evaluate whether induction immunotherapy with lorigerlimab (MGD019) achieves meaningful disease control in untreated advanced cervical cancer and characterize survival, response, and safety.
Patients: Adults (≥18) with measurable, recurrent, persistent, or metastatic cervical cancer (squamous, adenocarcinoma, or adenosquamous) not amenable to curative therapy, ECOG 0–1, adequate organ function, and no prior systemic chemotherapy for metastatic disease or prior checkpoint inhibitors. Key exclusions include active autoimmune disease requiring systemic therapy, uncontrolled infections, significant cardiopulmonary disease, active CNS metastases, and pregnancy or breastfeeding.
Design: Single-arm, phase 2, open-label trial with non-randomized allocation; planned enrollment of approximately 40 participants at a single sponsor institution. Induction immunotherapy is administered on 3-week cycles with on-treatment assessments and correlative biomarker studies.
Treatments: Lorigerlimab (MGD019), an investigational, bispecific checkpoint inhibitor delivered intravenously about 30 minutes on Day 1 of each cycle. Lorigerlimab targets PD-1 and CTLA-4 using a DART IgG4 platform, designed to provide full PD‑1 blockade while preferentially enhancing CTLA‑4 blockade on PD‑1/CTLA‑4 dual-expressing TILs to focus activity within the tumor microenvironment. Early phase 1 data across solid tumors, including a prostate cancer expansion, showed objective responses and pharmacodynamic evidence of dual checkpoint blockade, with a manageable immune-related safety profile; randomized efficacy data are not yet available.
Outcomes: Primary: Disease control rate by RECIST v1.1 in the induction setting. Secondary: Overall survival, progression-free survival, objective response rate, duration of response, and safety per CTCAE v5.0. Exploratory: Tumor molecular and immune changes on-treatment, correlation of tissue alterations with response/progression and immune-related AEs, and utility of cell-free DNA for response monitoring.
Burden on patient: Moderate. Patients will receive IV infusions every 3 weeks with routine safety labs and imaging per RECIST. Eligibility and on-treatment monitoring require frequent clinic visits early in therapy and management of potential immune-related toxicities, which may necessitate additional evaluations and steroids. Planned paired tumor biopsies for correlative studies and blood collections for cell-free DNA add procedural burden beyond standard care. Travel and time commitments are typical for an early phase immunotherapy study but without intensive pharmacokinetic sampling or prolonged infusion times.
Inclusion Criteria:
Inclusion criteria will be assessed within 28 days of starting study treatment:
1. Ability to provide signed informed consent
2. Age ≥ 18 years at time of study entry
3. Willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow up
4. Biopsy or CT scan confirmed recurrent, metastatic, or persistent cervical cancer
5. One of the following histologic subtypes: squamous cell carcinoma, adenosquamous, or adenocarcinoma
6. Not amenable to curative treatment (e.g. surgery and/or radiation)
7. Eastern Cooperative Oncology Group performance status 0 - 1
8. Measurable disease by RECIST v1.1
9. Adequate normal organ and marrow function as defined below.
1. Hemoglobin ≥8.0 g/dL.
2. Absolute neutrophil count (ANC) \> 1000/mm3
.
3. Platelet count ≥100 x 109
/L (\>75,000/mm3
).
4. Serum bilirubin ≤1.5 x ULN. This will not apply to patients with confirmed Gilbert's syndrome (persistent or recurrent hyperbilirubinemia that is predominantly unconjugated in the absence of hemolysis or hepatic pathology), who will be allowed only in consultation with their physician.
5. AST (SGOT)/ALT (SGPT) ≤2.5 x ULN unless liver metastases are present, in which case it must be ≤5x ULN.
6. International normalized ratio (INR) or prothrombin time (PT) or activated partial thromboplastin time (aPTT) ≤1.5 x ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants.
7. Measured creatinine clearance (CL) \>40 mL/min or Calculated creatinine CL\>40 mL/min by the Cockcroft-Gault formula (Cockcroft and Gault 1976) or by 24-hour urine collection for determination of creatinine clearance: Creatinine CL (mL/min) = Weight (kg) x (140 - Age) x 0.85 72 x serum creatinine (mg/dL)
10. Evidence of post-menopausal status or negative serum pregnancy test for female pre-menopausal patients. Women will be considered post-menopausal if they have been amenorrheic for 12 months without an alternative medical cause. The following age-specific requirements apply:
1. Women \<50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatments and if they have luteinizing hormone and follicle-stimulating hormone levels in the post-menopausal range for the institution or underwent surgical sterilization (bilateral oophorectomy or hysterectomy).
2. Women ≥50 years of age would be considered post-menopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatments, had radiationinduced menopause with last menses \>1 year ago, had chemotherapy-induced menopause with last menses \>1 year ago, or underwent surgical sterilization (bilateral oophorectomy, bilateral salpingectomy or hysterectomy).
11. If vaccinated against COVID-19, the last vaccine dose must be 14 days or greater from the first investigational product administration.
12. If a participant received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment. Participants must have recovered from all AEs due to previous therapies to ≤ Grade 1 or baseline. Participants with ≤ Grade 2 neuropathy, alopecia, or other non-relevant AEs may be deemed eligible at the discretion of the PI
Exclusion Criteria:
Exclusion criteria will be assessed within 28 days of starting study treatment:
1. Prior systemic chemotherapy except when used with concurrent radiation therapy
2. Is pregnant, breastfeeding, or expecting to conceive within the projected duration of the study, starting with the screening visit through 120 days after the last dose of trial treatment.
3. Previous immune checkpoint inhibitor therapy or cytokines
4. Ongoing or active systemic infection, active hepatitis B or C infection, or known uncontrolled HIV, that might affect host immunity. Patients with stable, controlled HIV (defined as CD4+ T-cell counts ≥ 350 cells/uL, on established antiretroviral therapy for at least 4 weeks, and have an HIV viral load less than 400 copies/mL prior to enrollment) are eligible for trial inclusion.
5. History of chronic obstructive pulmonary disease or other intrinsic lung disease requiring systemic steroid therapy, oxygen, or hospitalization
6. History of clinically significant cardiovascular disease or QTcF \> 470 within 12 months from first dose of study intervention, including New York Heart Association (NYHA) Class III or IV congestive heart failure, unstable angina, myocardial infarction, cerebral vascular event, or cardiac arrhythmia associated with hemodynamic instability. Note: medically controlled arrhythmia would be permitted.
7. History of immunodeficiency or receiving chronic systemic steroid or other immunosuppressive therapy (in doses exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug. Steroid premedications for radiologic contrast allergy are permitted.
8. Has known active CNS metastases and/or carcinomatous meningitis. Participants with previously treated brain metastases may participate provided they are radiologically stable, i.e. without evidence of progression for at least 4 weeks by repeat imaging (note that the repeat imaging should be performed during study screening), clinically stable and without requirement of steroid treatment for at least 14 days prior to first dose of study intervention.
9. Has history of a second malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 2 years. The time requirement does not apply to participants who underwent successful definitive resection of basal cell carcinoma of the skin, squamous cell carcinoma of the skin, superficial bladder cancer, in situ cervical cancer, or other in-situ cancers.
10. Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (e.g., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is allowed.
11. Other illnesses/conditions that in the investigator's opinion would adversely affect the safety of checkpoint inhibitor therapy.
Houston, Texas, 77030, United States
[email protected] / 713-745-1613
Status: Recruiting