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Sintilimab for the Treatment of Locally Advanced, Metastatic, or Recurrent Angiosarcoma, the SiARa Cancer Study

A Phase 2 Clinical Trial Evaluating the Efficacy and Safety of Sintilimab for Angiosarcoma

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05026736
Enrollment
6
Registered
2021-08-30
Start date
2021-08-23
Completion date
2025-08-12
Last updated
2026-07-21

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

Conditions

Locally Advanced Angiosarcoma, Metastatic Angiosarcoma, Recurrent Angiosarcoma

Brief summary

This phase II trial evaluates the effect of sintilimab in treating patients with angiosarcoma that has spread to nearby tissue or lymph nodes (locally advanced), has spread to other places in the body (metastatic), or has come back (recurrent). Immunotherapy with monoclonal antibodies, such as sintilimab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving sintilimab may help to control angiosarcoma.

Detailed description

PRIMARY OBJECTIVE: I. To evaluate the efficacy of sintilimab in subjects with angiosarcoma (progression- free rate PFR at 9 cycles by Response Evaluation Criteria in Solid Tumors \[RECIST\] 1.1). SECONDARY OBJECTIVE: I. To evaluate the objective response rate (ORR), stable disease rate (SDR), progression free survival (PFS), overall survival (OS), quality of life (QOL), safety and duration of response (DOR) of sintilimab in subjects with angiosarcoma. EXPLORATORY OBJECTIVES: I. To evaluate the correlation between biomarkers in tumor tissue and efficacy, including but not restricted to PD-L1 expression level, transcriptome sequencing, single-cell sequencing, and multicolor immunohistochemistry (IHC) analyses. II. To evaluate the correlation between biomarkers in peripheral blood and efficacy, including but not restricted to soluble PD-L1, circulating tumor deoxyribonucleic acid (DNA) (ctDNA), and cytokine analyses. OUTLINE: Patients receive sintilimab intravenously (IV) over 30-60 minutes on day 1. Cycles repeat every 21 days for up to 24 months in the absence of disease progression or unacceptable toxicity. Patients with progressive disease may continue to receive treatment at the discretion of the treating physician. After completion of study treatment, patients are followed up at 30 and 90 days, and then every 60 days for up to 3 years.

Interventions

OTHERQuality-of-Life Assessment

Ancillary studies

BIOLOGICALSintilimab

Given IV

Sponsors

M.D. Anderson Cancer Center
Lead SponsorOTHER

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

* Histopathologically confirmed unresectable, locally advanced, recurrent or metastatic angiosarcoma * Intolerant to or progressed on at least one line of systemic chemotherapy. Patient ineligible for cytotoxic chemotherapy are eligible * Aged \>= 18 * Can provide archival or fresh tissues for optional correlative analysis * Have at least one measurable lesion as per RECIST version (v)1.1 * Eastern Cooperative Oncology Group (ECOG) performance status =\< 1 * Absolute neutrophil count (ANC) \>= 1.0 x 10\^9/L * Platelet (PLT) count \>= 75 x 10\^9/L * Hemoglobin (HGB) \>= 8.0 g/dL * Total bilirubin (TBIL) =\< 1.5 x upper limit of normal (ULN) * Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =\< 2.5 x ULN in subjects without hepatic metastasis; ALT and AST =\< 5 x ULN in subjects with hepatic metastasis, gamma-glutamyl transferase (GGT) =\< 10 x ULN * Urine protein \< 2+ from random sample or \< 1 g from 24-hour urine collection * Serum creatinine =\< 1.5 x ULN or calculated creatinine clearance rate (Ccr) \>= 50 mL/min by Cockcroft-Gault formula * Adequate coagulation function, defined as international normalized ratio (INR) =\< 1.5 or prothrombin time (PT) =\< 1.5 x ULN; if the subject is receiving anticoagulant therapy, the results of coagulation tests need to be within the acceptable range for anticoagulants * Expected survival \>= 12 weeks * Subject (female subjects of childbearing age or male subjects whose partners are of childbearing age) must take effective contraceptive measures during the entire course of the trial and until 180 days after the last dose * Signed the informed consent form (ICF) and be able to comply with the scheduled follow-up visits and related procedures required in the protocol

Exclusion criteria

* Received treatment with an anti-PD-1, anti-PD-L1, anti-PD-L2, anti-CD137, or anti-CTLA-4 antibody, or any other antibody or drug that specifically targets T-cell co-stimulation or immune checkpoint pathways * Enrolled in another interventional clinical study for angiosarcoma, unless only involved in an observational study (non-interventional) or in the follow-up phase of an interventional study * Received palliative radiation therapy for local lesion within 2 weeks prior to the first dose * Received systemic treatment with anti-cancer indications or immunomodulators (including thymosins, interferons, and interleukins) within 2 weeks prior to the first dose of study treatment * Received systemic immunosuppressants within 2 weeks prior to first dose, excluding local use of glucocorticoids administered by nasal, inhaled, or other routes, and systemic glucocorticoids at physiological doses (no more than 10 mg/day of prednisone or equivalents), or glucocorticoids to prevent allergies to contrast media * Received a live attenuated vaccine within 4 weeks prior to the first dose of study treatment or be scheduled to receive live attenuated vaccine during the study period * Note: Seasonal inactivated influenza virus vaccines within 4 weeks prior to the first dose of study treatment are permitted, but attenuated influenza vaccines are not * Received major surgery (craniotomy, thoracotomy, or laparotomy) within 4 weeks prior to the first dose of study treatment or is scheduled to receive major surgery during the course of the trial * Any toxicity (excluding alopecia, events that are not clinically significant, or asymptomatic laboratory abnormalities) due to prior anti-tumor therapy that has not yet resolved to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v5.0 grade 0 or 1 prior to the first dose of study treatment * Known symptomatic central nervous system (CNS) metastasis or carcinomatous meningitis. Subjects with brain metastases who have received prior treatment can be enrolled if the disease is stable (no imaging evidence of progressive disease \[PD\] for at least 4 weeks prior to the first dose of study treatment), there is no evidence of new brain metastases or progression of the existing metastatic lesion(s) upon repeated imaging, and corticosteroids have not been required for at least 14 days prior to the first dose of study treatment. Patients with carcinomatous meningitis are ineligible, regardless of whether the disease is clinically stable or not * Subjects with bone metastases at risk of paraplegia * Known active autoimmune disease requiring treatment or previous disease history within 2 years (subjects with vitiligo, psoriasis, alopecia, or Graves' disease not requiring systemic treatment, hypothyroidism only requiring thyroid replacement, or type I diabetes only requiring insulin can be enrolled) * Known history of primary immunodeficiency diseases * Known active pulmonary tuberculosis * Known history of allogeneic organ transplantation or allogeneic hematopoietic stem cell transplantation * Human immunodeficiency virus (HIV)-infected subjects (positive anti-HIV antibody) * Active or poorly controlled serious infections that require systemic therapy * Symptomatic congestive heart failure (New York Heart Association \[NYHA\] class II-IV) or symptomatic or poorly controlled arrhythmia * Uncontrolled hypertension (systolic blood pressure \>= 160 mmHg or diastolic blood pressure \>= 100 mmHg) despite of standard treatment * Any arterial thromboembolic event within 6 months prior to enrollment, including myocardial infarction, unstable angina, cerebrovascular accident, or transient cerebral ischemic attack * Significant malnutrition, such as those requiring continuous parenteral nutrition \>= 7 days; excluding those having received intravenous treatment for malnutrition for more than 4 weeks before the first dose of study treatment * History of clinically significant deep venous thrombosis, pulmonary embolism, or other serious thromboembolic events within 3 months prior to enrollment (implantable port or catheter-related thrombosis or incidental pulmonary embolism \[PE\] detected on scan without symptoms or superficial venous thrombosis are not considered as "serious" thromboembolisms) * Uncontrolled metabolic disorders, non-malignant organ or systemic diseases, or cancer-related secondary diseases that may lead to higher medical risks and/or survival evaluation uncertainties * Hepatic encephalopathy, hepatorenal syndrome, or cirrhosis with Child-Pugh class B or C * Bowel obstruction or history of the following diseases: inflammatory bowel disease, extensive bowel resection (partial colectomy or extensive small intestine resection accompanied with chronic diarrhea), Crohn's disease, or ulcerative colitis * Known acute or chronic active hepatitis B (positive hepatitis B surface antigen \[HBsAg\] and hepatitis B virus \[HBV\] deoxyribonucleic acid \[DNA\] viral load \>= 10\^4 copies/mL or \> 2000 IU/mL), or acute or chronic active hepatitis C (hepatitis C virus \[HCV\] ribonucleic acid \[RNA\] \>10\^3 copies/mL), or simultaneously positive for HBsAg and HCV antibody * History of gastrointestinal (GI) perforation and/or fistula within 6 months prior to the enrollment, excluding gastrostomy or enterostomy * Interstitial lung disease requiring corticosteroids * History of other primary malignant tumors, excluding: * Malignant tumors that achieved a complete response (CR) at least 2 years prior to enrollment and expected to require no treatment during the trial * Adequately treated nonmelanoma skin cancer or lentigo maligna with no sign of disease recurrence * Adequately treated carcinoma in situ with no sign of disease recurrence * Prostate, chronic lymphocytic leukemia (CLL) or other cancers where the indolent nature of tumor allows for and patient is cancer under active surveillance * Pregnant or breastfeeding female subjects * Acute or chronic diseases, psychiatric disorders, or laboratory abnormalities that may lead to the following consequences: increased investigational drug-related risks, interference with interpretation of trial results, or considered ineligible for participating in the trial by the investigators * If there are any uncertainties regarding the inclusion/exclusion, please contact the sponsor immediately and provide a complete medical history of the subject. The sponsor and principal investigator will discuss and determine the eligibility of the subject

Design outcomes

Primary

MeasureTime frameDescription
Progression-free Rate at 9 CyclesNine cycles of therapy (Each cycle consists of a 21-day period)A patient was considered as a responder to the treatment if he/she had no confirmed progressive disease determined by RECIST 1.1 after 9 cycles of therapy. Progression is defined using Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) as a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addtion, the sum must also demonstrate an absolute increaase of at least 5 mm. (Note: the appearmance of one or more new lesions is also considered progression).

Secondary

MeasureTime frameDescription
Objective Response Rate (Complete Response + Partial Response)up to 3 yearsObjective response rate is defined as percentage of participants who have achieved a complete response or particial response per Response Evaluation Criteria In Solid Tumors Criteria (RECISTv1.1). Complete response is defined as disapperance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. Partial response is defined as at least 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Duration of ResponseUp to 3 yearsDuration of response (DOR) was measured from the time measurement criteria were first met for complete response (CR) or partial response (PR) (whichever is first recorded) until the first date that recurrent or progressive disease (PD) is objectively documented (taking as reference for PD the smallest measurements recorded on study). Using RECIST v1.1, CR is defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to \< 10 mm. PR is defined as at least 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters. PD is defined as a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study (this includes the baseline sum if that is the smallest on study). In addition, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearmance of one or more new lesions is also considered progression).
Progression Free SurvivalUp to 3 yearsProgression-free survival is defined as the time from treatment onset to either disease progression or death from any cause, or discontinuation of treatment for any reason, whichever occurs first
Overall SurvivalUp to 3 yearsOverall survival is defined as the time from treatment onset to death
Stable Disease for 9 CyclesNine cycles of therapy (Each cycle consists of a 21-day period)Stable disease for 9 cycles is defined as proportion of patients whose stable disease last for at least 9 cycles.
Adverse EventsUp to 90 days after the last dose, approximately 34 monthsAdverse events were evaluated according to NCI CTCAT v5.0

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORVinod Ravi

M.D. Anderson Cancer Center

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
2 Participants
Age, Categorical
Between 18 and 65 years
4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
5 Participants
Region of Enrollment
United States
6 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
2 / 6
other
Total, other adverse events
6 / 6
serious
Total, serious adverse events
3 / 6

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 22, 2026