Sponsor: M.D. Anderson Cancer Center (other)
Phase: 2
Start date: Dec. 13, 2022
Planned enrollment: 40
Lorigerlimab (MGD019; also reported as AEX-1344) is an investigational, tetravalent bispecific antibody that targets PD‑1 and CTLA‑4 using MacroGenics’ DART platform. It has entered human trials, including a completed first‑in‑human phase 1 study in advanced solid tumors and ongoing phase 2 studies in metastatic castration‑resistant prostate cancer (mCRPC) and gynecologic cancers. (pubmed.ncbi.nlm.nih.gov)
Phase 1 (MGD019‑01; NCT03761017) dose‑expansion in mCRPC: - Among 35 response‑evaluable patients with measurable disease, objective response rate (ORR) was 25.7% (all partial responses; 9/35). Median duration of response was 16.1 weeks (range 6–25+). PSA responses: PSA50 in 28.6% (12/42) and PSA90 in 21.4% (9/42). Patients were heavily pretreated; most had visceral and/or bone metastases. Data cutoff: September 10, 2022; presented February 2023. (ascopubs.org)
Additional early clinical activity across multiple tumor types was described in the first‑in‑human publication, which reported acceptable safety and preliminary responses in cancers typically less responsive to checkpoint blockade; details were from the dose‑escalation phase and were not tumor‑specific efficacy cohorts. (pubmed.ncbi.nlm.nih.gov)
Ongoing randomized phase 2 (LORIKEET): - Lorigerlimab + docetaxel vs docetaxel alone in second‑line, chemotherapy‑naïve mCRPC; primary endpoint: rPFS. Approximately 150 patients randomized 2:1; study fully enrolled in late 2024 with a clinical update anticipated in the second half of 2025. (No efficacy readout available yet.) (ascopubs.org)
Phase 1 (all‑comers at 6 mg/kg Q3W; n=127): - Treatment‑related adverse events (TRAEs): 85.8%; grade ≥3 TRAEs: 32.3%; immune‑related AEs: 7.9%; discontinuations due to AEs: 22.8%; no treatment‑related deaths reported. Common TRAEs (≥15%): fatigue, pruritus, hypothyroidism, pyrexia. (ascopubs.org)
The first‑in‑human publication concluded that safety was acceptable with pharmacodynamic evidence of dual checkpoint blockade. (pubmed.ncbi.nlm.nih.gov)
Notes: As of October 7, 2025, randomized efficacy results have not been publicly reported for lorigerlimab. The most granular response data in humans are from the phase 1 mCRPC expansion cohort summarized above. (ascopubs.org)
Last updated: Oct 2025
Goal: Evaluate whether induction immunotherapy with lorigerlimab (MGD019) achieves clinically meaningful disease control in previously untreated advanced cervical cancer, and characterize survival and safety to inform further development.
Patients: Adults ≥18 years with recurrent, metastatic, or persistent cervical cancer (squamous, adenosquamous, or adenocarcinoma) not amenable to curative therapy, ECOG 0–1, measurable disease by RECIST v1.1, and adequate organ function. Prior systemic chemotherapy is not allowed except when given concurrently with radiation. Patients with controlled, treated brain metastases may enroll; key exclusions include prior checkpoint inhibitors, active autoimmune disease requiring systemic therapy, significant cardiopulmonary disease, uncontrolled infections, and pregnancy/breastfeeding.
Design: Single‑arm, phase 2 treatment study enrolling approximately 40 participants with nonrandomized allocation. Induction immunotherapy is administered until progression or unacceptable toxicity, with integrated clinical, radiographic, and correlative assessments.
Treatments: Lorigerlimab (MGD019) administered intravenously on Day 1 of each cycle. Lorigerlimab is an investigational bispecific DART antibody targeting PD‑1 and CTLA‑4, designed to provide full PD‑1 blockade while preferentially enhancing CTLA‑4 blockade on PD‑1/CTLA‑4–coexpressing tumor‑infiltrating lymphocytes to focus activity within the tumor microenvironment. Early phase 1 data across solid tumors, including signals in mCRPC, show antitumor activity with a manageable safety profile; common immune‑related toxicities include rash, pruritus, hypothyroidism, and fatigue, with grade ≥3 events in roughly one‑third of patients and no treatment‑related deaths reported to date.
Outcomes: Primary: Disease control rate per RECIST v1.1 in the target population. Secondary: Overall survival, progression‑free survival, objective response rate, duration of response, and safety per CTCAE v5.0. Exploratory: Tumor molecular and immunologic changes pre‑ and on‑treatment, correlations of tissue alterations with response, progression, and immune‑related adverse events, and utility of cell‑free DNA to monitor treatment response.
Burden on patient: Moderate. Patients will receive IV infusions approximately every 3 weeks with routine safety labs and serial imaging per RECIST, which aligns with typical immunotherapy monitoring. The trial includes additional research biopsies pre‑ and on‑treatment and blood collection for cfDNA and immune correlative studies, adding procedure‑related visits and potential discomfort. No intensive pharmacokinetic sampling is described, but eligibility and safety monitoring necessitate frequent early visits and labs; immune‑related adverse events may require additional evaluations and management, contributing to visit burden and potential corticosteroid use if needed.
Last updated: Oct 2025
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