ClinicalTrials.gg
CompletedNCT02406781PEMBROSARCUpdated Dec 10, 2025Results posted

Combination of MK3475 and Metronomic Cyclophosphamide in Patients With Advanced Sarcomas : Multicentre Phase II Trial

A Phase 2 interventional study of Combination of MK3475 with Metronomic CP and Combination of MK3475 with Metronomic CP and G100 in Sarcoma, sponsored by Institut Bergonié. Completed at 8 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-12-10.

Sponsored by Institut Bergonié · Phase 2, Interventional, and Treatment

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Phase
Phase 2
Study type
Interventional
Enrollment
129
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 22 studies in Sarcoma by Institut Bergonié — 6 open to participants now, 9 under way, 1 of them phase 3. Sarcoma · Institut Bergonié.

Enrollment
6th of 18
129 · median 69
Started
2015
with 2 others
Phase 2
8 of 22
1 open now
Registered
1st of 22
by date

Among the 22 studies in Sarcoma by Institut Bergonié, this one is the 6th largest by enrollment of the 18 interventional ones that give a count, is one of 3 that started in 2015, is one of 8 in phase 2, and was the 1st registered.

Sarcoma

1,607 studies on the registry are indexed under Sarcoma; 365 are open to participants now.

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Open to participants now

6 of the 22 studies in Sarcoma by Institut Bergonié are open now, in 1 country. Recruiting first, the newest first:

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By country, each count listing its studies:

All 6 open studies →

Where they have run

Who these studies take

Of the 301 Sarcoma studies recruiting now, 191 (63%) set no upper age limit and 83 (28%) stop at 75 or younger; 92 take children under 18; 12 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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02

Study summary

This is a multicenter study assessing the efficacy of different therapeutic strategy in patients with advanced sarcomas.

Read the detailed description

This is a phase 2 trial with 7 strata :

  • Leiomyosarcoma (strata 1) : 33 patients
  • Undifferentiated sarcoma (strata 2): 33 patients
  • Sarcomas others (strata 3) : 33 patients
  • Osteosarcoma (strata 4) : 33 patients
  • GIST (strata 5): 31 patients
  • Advanced soft-tissue sarcoma with immune signature (strata 6): 32 patients
  • Metastatic soft-tissue sarcoma (strata 7): 32 patients
03

Conditions studied

  • Sarcoma

Keywords

  • Efficacy of MK 3475 with Metronomic Cyclophosphamide
  • Advanced Sarcomas
  • Leiomyosarcoma
  • Undifferentiated Sarcoma
  • Other Sarcoma
  • GIST
  • Osteosarcoma
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Histology : Leiomyosarcoma, or UPS, or other sarcoma, or GIST or osteosarcoma, or soft-tissue sarcoma with presence of tertiary lymphoid structures (stratum 6) confirmed by central review.
  2. Advanced non resectable / disease for strata 1 to 6. For stratum 7: locally advanced or metastatic disease with at least one injectable lesion.
  3. Documented progression according to criteria. Progression on the last should be confirmed by central review with two radiological assessments identical obtained at less than 6 months interval within the 12 months before inclusion.
  4. For stratum 5, documented disease progression according to RECIST criteria after the first line imatinib and second line sunitinib.
  5. Have provided tissue of a tumor lesion from an sample obtained on metastasis or on locally advanced disease, or newly obtained core or excisional biopsy. For strata 6 and 7, tissue \< 3 months old and with no subsequent treatment since or from a newly obtained biopsy.
  6. For strata 1, 2, 3 and 6: no more of four previous lines of systemic therapy for metastatic disease and no more than 2 previous line for stratum 7.
  7. Age ≥ 18 years.
  8. performance status ≤ 1.
  9. according to RECIST v1.1 outside any previously irradiated field. At least one site of disease must be uni-dimensionally ≥ 10 mm.
  10. > 3 months (except for stratum 7 > 6 months).
  11. ≥ 1 previous line (s) of chemotherapy in the palliative setting for strata 1 to 5. For other strata, participant must have advanced disease and must not be a candidate for other approved therapeutic regimen known to provide significant clinical benefit based on investigator judgement.
  12. No symptomatic central nervous system disease.
  13. No chronic use of .
  14. Adequate hematological, renal, metabolic and hepatic function:

    1. ≥ 9 g/dl (patients may have received prior red blood cell transfusion); ≥ 1.5 x 109/l and count ≥ 100 x 109/l. For stratum 7: lymphocyte count ≥ 0.5.109 /l
    2. and AST ≤ 2.5 x upper limit of normality () (≤ 5 in case of liver metastasis)
    3. Total ≤ 1.5 x ULN OR Direct bilirubin ≤ ULN for subjects with total bilirubin levels ≥ 1.5 x ULN
    4. Albumin ≥ 25g/l
    5. Serum creatinine ≤ 1.5 x ULN OR ≥ 60 ml/min for subject with creatinine levels ≥ 1.5 x ULN,
    6. Creatine phosphokinase ≤ 2.5 x ULN
    7. ≤ 1.5 x ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants
    8. aPTT ≤ 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants
  15. No prior or concurrent malignant disease diagnosed or treated in the last 2 years except for adequately treated in situ carcinoma of the cervix, basal or squamous skin cell carcinoma, or in situ transitional bladder cell carcinoma.
  16. At least three weeks since last chemotherapy, immunotherapy or any other pharmacological treatment and/or radiotherapy.
  17. Recovery to grade ≤ 1 from any adverse event from previous treatment (excluding alopecia of any grade and non-painful peripheral neuropathy grade ≤ 2 (, v 4.0).
  18. Women of must have a negative serum pregnancy test within 72 hours prior to receiving the first dose of study medication. Both women and men must agree to use a medically acceptable method of throughout the treatment period and for four months after discontinuation of treatment. Acceptable methods for contraception include intrauterine device, oral contraceptive, subdermal implant and double barrier. Subjects of childbearing potential are those who have not been surgically sterilized or have not been free from menses for ≥ 1 year.
  19. Voluntary signed and dated written informed consents prior to any specific study procedure.
  20. Patients with a French social security in compliance with the Law relating to biomedical research (Article 1121-11 of French Public Health Code).

Exclusion criteria

Exclusion Criteria:

  1. Previous treatment with MK3475 or CP or G100.
  2. Has received prior therapy with an , anti-PD-L1, anti-PD-L2, anti-CD137, or anti-CTLA-4 antibody (including ipilimumab or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways).
  3. Evidence of progressive or symptomatic central nervous system (CNS) or .
  4. Men or women of who are not using an effective method of as previously described; women who are pregnant or breast feeding.
  5. Participation to a study involving a medical or therapeutic intervention in the last 30 days.
  6. Previous enrolment in the present study.
  7. Patient unable to follow and comply with the study procedures because of any geographical, familial, social or psychological reasons.
  8. Known to any involved study drug or of its formulation components.
  9. Has an active disease requiring systemic treatment within the past 3 months or a documented history of clinically severe autoimmune disease, or a syndrome that requires systemic or agents. Subjects with vitiligo or resolved childhood asthma/atopy would be an exception to this rule. Subjects that require intermittent use of bronchodilators or local steroid injections would not be excluded from the study. Subjects with hypothyroidism stable on hormone replacement or Sjorgen's syndrome will not be excluded from the study.
  10. Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of trial treatment.
  11. History of idiopathic pulmonary fibrosis (including pneumonitis), drug-induced pneumonitis, organizing pneumonia, or evidence of active pneumonitis on screening chest CT scan. History of radiation pneumonitis in the radiation field (fibrosis) is permitted.
  12. Has known active or .
  13. Has a known history of (HIV1/2 antibodies).
  14. Has received a within 30 days prior to the first dose of trial treatment.
  15. For strata 6 to 7:

    • patients with oral anticoagulation therapy
    • known urinary tract obstruction
    • previous allogenic bone marrow transplant
    • has an active infection requiring systemic treatment within 14 days prior to study
Terms in these criteria, in plain language(29)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
129 participants (actual)

Study arms

  • Experimental
    Stratum 1: Advanced Leiomyosarcoma

    Treatment strategy A: Combination of MK3475 with Metronomic CP administered to patients with advanced leiomyosarcoma. MK3475 will be administered intraveinously. Metronomic CP (Cyclophosphamide) will be adminstered orally.

    Drug: Combination of MK3475 with Metronomic CP

  • Experimental
    Stratum 2: Advanced undifferentiated sarcoma

    Treatment strategy A: Combination of MK3475 with Metronomic CP administered to patients with advanced undifferentiated sarcoma. MK3475 will be administered intraveinously. Metronomic CP (Cyclophosphamide) will be adminstered orally.

    Drug: Combination of MK3475 with Metronomic CP

  • Experimental
    Stratum 3: Advanced other sarcoma

    Treatment strategy A: Combination of MK3475 with Metronomic CP administered to patients with advanced other sarcoma. MK3475 will be administered intraveinously. Metronomic CP (Cyclophosphamide) will be adminstered orally.

    Drug: Combination of MK3475 with Metronomic CP

  • Experimental
    Stratum 4: Advanced osteosarcoma

    Treatment strategy A: Combination of MK3475 with Metronomic CP administered to patients with advanced osteosarcoma. MK3475 will be administered intraveinously. Metronomic CP (Cyclophosphamide) will be adminstered orally.

    Drug: Combination of MK3475 with Metronomic CP

  • Experimental
    Stratum 5: Advanced GIST

    Treatment strategy A: Combination of MK3475 with Metronomic CP administered to patients with advanced GIST. MK3475 will be administered intraveinously. Metronomic CP (Cyclophosphamide) will be adminstered orally.

    Drug: Combination of MK3475 with Metronomic CP

  • Experimental
    Stratum 6: Advanced soft-tissue sarcomas with immune signature

    Treatment strategy A: Combination of MK3475 with Metronomic CP administered to patients with advanced soft-tissue sarcomas with immune signature. MK3475 will be administered intraveinously. Metronomic CP (Cyclophosphamide) will be adminstered orally.

    Drug: Combination of MK3475 with Metronomic CP

  • Experimental
    Stratum 7: Metastatic soft-tissue sarcoma.

    Treatment strategy B: Combination of MK3475 with Metronomic CP and G100 adminitrered to patients with metastatic soft-tissue sarcoma. MK3475 will be administered intravenously. Metronomic CP (Cyclophosphamide) will be administered orally. G100 will be administered by intra-tumoral injection.

    Drug: Combination of MK3475 with Metronomic CP and G100

Interventions

  • DrugCombination of MK3475 with Metronomic CP

    Combination of MK3475 with Metronomic CP. Metronomic CP (cyclophosphamide) will be administered per os bi-daily (50 mg x 2), and given on a week on/ week off schedule. MK3475 will be administered intraveinously, and given every 3 weeks on day 8. A treatment cycle consists of 3 weeks. Treatment may continue until disease progression or study discontinuation.

    Also known as: Pembrolizumab, Endoxan

  • DrugCombination of MK3475 with Metronomic CP and G100

    Combination of MK3475 with Metronomic CP and G100. Metronomic CP (cyclophosphamide) will be administered per os bi-daily (50 mg x 2), and given on a week on/ week off schedule. MK3475 will be administered intravenously (200 mg), and given every 3 weeks on day 8. G100 will be administered by intra-tumoral injection (20µg), one weekly injection for at least 6 weeks and for a maximum of 12 weeks. G100 will start one week before CP administration (impregnation phase). A treatment cycle consists of 3 weeks. Treatment may continue until disease progression or study discontinuation.

    Also known as: Pembrolizumab, Endoxan, GLA-SE (glucopyranosyl lipid adjuvant-stable emulsion).

This study also gives Pembrolizumab. No intervention listed here names it: that was found by reading the record.

06

What researchers measure

Primary outcomes

  1. Percentage of Participants in Objective Response at 6 Months

    Objective response is defined according to RECIST v1.1 as either complete response (disappearance of all target lesions, with any pathological lymph nodes reduced in short axis to \<10 mm) or partial response (≥30% decrease in the sum of diameters of target lesions compared with baseline). This primary endpoint is part of a dual endpoint encompassing both non-progression and objective response at 6 months (non-progression is presented as a separate primary outcome). ORR at 6 months will be evaluated only in the following strata: Stratum 1: Advanced leiomyosarcoma ; Stratum 2: Advanced undifferentiated sarcoma ; Stratum 3: Advanced other sarcoma ; Stratum 4: Advanced osteosarcoma

    Time frame: 6 months from treatment initiation

  2. Percentage of Particpants in Non-progression at 6 Months

    Non-progression is defined as the absence of progressive disease according to RECIST v1.1. Progressive disease defined as at least a 20% increase in the sum of the 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 to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progressions). This outcome will be assessed as a stand-alone primary endpoint in the following strata: Stratum 5: Advanced gastrointestinal stromal tumor (GIST) ; Stratum 6: Advanced soft tissue sarcomas with immune signature ; Stratum 7: Metastatic soft tissue sarcoma (STS) In strata 1 to 4, non-progression is considered as part of the dual primary endpoint together with objective response at 6 months.

    Time frame: 6 months from treatment initiation

Secondary outcomes

  1. Percentage of Patients Remaining Alive With Best Overall Response as Per RECIST v1.1.

    Best overall response is defined as the best response across all time points (RECIST v1.1). The best overall response is determined once all the data for the participant is known. Each patient has been assigned one of the following categories (RECIST 1.1): complete response (disappearance of all target lesions); partial response (\>=30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters); progression (20% increase in the sum of diameters of target lesions (taking as reference the smallest sum on study) and stable disease (nor CR, PR or progression).

    Time frame: 6 months from treatment initiation

  2. Median Progression-free Survival

    Progression-free survival (PFS) is defined as the time from study treatment initiation to the first occurrence of disease progression or death (of any cause), whichever occurs first. Progressive disease defined as at least a 20% increase in the sum of the 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 to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progressions). Patients alive and progression free were censored at the date of last follow-up, death, or last patient contact. Progression is assessed as per RECIST v1.1. Progression-free survival is estimated as a function of time using Kaplan-Meier method.

    Time frame: From start of treatment, and during treatment until progression or death for any cause, whichever occurs first, for up to 12 months.

  3. Median Overall Survival

    Overall survival (OS) defined as the time from randomization to death (due to any cause). Patients alive were censored at the date of last follow-up or last patient contact. Overall survival was estimated as a function of time using Kaplan-Meier method.

    Time frame: From start of treatment, and during treatment until death for any cause for up to 30 months

07

Results

Posted Dec 10, 2025

Participant flow

8 centers: * Institut Bergonié, Pr Italiano * Centre Léon Bérard, Pr Blay * Institut Gustave Roussy, Dr Le Cesne * Centre Oscar Lambret, Dr Penel * Institut Curie, Dr Piperno-Neumann * Institut Paoli Calmette, Pr Bertucci * Institut Claudius Regaud, Dr Chevreau * Institut de Cancérologie de l'Ouest - Site René Gauducheau, Dr Bompas Planned enrollment period : 72 months Treatment duration : 2-years maximum Follow-up : 12 months Duration of study : 7 years

Participant flow — Overall Study
MilestoneStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
Started15161617103520
Completed1314141593017
Not completed2222153
Withdrew: Protocol violation2222153

Outcome measures

PrimaryPercentage of Participants in Objective Response at 6 Months

Objective response is defined according to RECIST v1.1 as either complete response (disappearance of all target lesions, with any pathological lymph nodes reduced in short axis to \<10 mm) or partial response (≥30% decrease in the sum of diameters of target lesions compared with baseline). This primary endpoint is part of a dual endpoint encompassing both non-progression and objective response at 6 months (non-progression is presented as a separate primary outcome). ORR at 6 months will be evaluated only in the following strata: Stratum 1: Advanced leiomyosarcoma ; Stratum 2: Advanced undifferentiated sarcoma ; Stratum 3: Advanced other sarcoma ; Stratum 4: Advanced osteosarcoma

Time frame:
6 months from treatment initiation
Reported as:
Number · percentage of participants
Percentage of Participants in Objective Response at 6 Months
percentage of participantsStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced Osteosarcoma
Percentage of Participants in Objective Response at 6 Months0.0 (0.0 to 0.0)0.0 (0.0 to 0.0)0.0 (0.0 to 0.0)6.7 (0.2 to 32.0)
PrimaryPercentage of Particpants in Non-progression at 6 Months

Non-progression is defined as the absence of progressive disease according to RECIST v1.1. Progressive disease defined as at least a 20% increase in the sum of the 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 to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progressions). This outcome will be assessed as a stand-alone primary endpoint in the following strata: Stratum 5: Advanced gastrointestinal stromal tumor (GIST) ; Stratum 6: Advanced soft tissue sarcomas with immune signature ; Stratum 7: Metastatic soft tissue sarcoma (STS) In strata 1 to 4, non-progression is considered as part of the dual primary endpoint together with objective response at 6 months.

Time frame:
6 months from treatment initiation
Reported as:
Number · percentage of participants
Percentage of Particpants in Non-progression at 6 Months
percentage of participantsStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
Percentage of Particpants in Non-progression at 6 Months0.0 (0.0 to 0.0)7.1 (0.2 to 33.9)14.3 (1.8 to 42.8)13.3 (1.7 to 40.5)11.1 (2.8 to 48.3)40 (22.7 to 59.4)11.8 (1.5 to 36.4)
SecondaryPercentage of Patients Remaining Alive With Best Overall Response as Per RECIST v1.1.

Best overall response is defined as the best response across all time points (RECIST v1.1). The best overall response is determined once all the data for the participant is known. Each patient has been assigned one of the following categories (RECIST 1.1): complete response (disappearance of all target lesions); partial response (\>=30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters); progression (20% increase in the sum of diameters of target lesions (taking as reference the smallest sum on study) and stable disease (nor CR, PR or progression).

Time frame:
6 months from treatment initiation
Reported as:
Number · percentage of participants
Percentage of Patients Remaining Alive With Best Overall Response as Per RECIST v1.1.
percentage of participantsStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
Complete response (CR)0 (0 to 0)0 (0 to 0)0 (0 to 0)0 (0 to 0)0 (0 to 0)0 (0 to 0)0 (0 to 0)
Partial response (PR)0 (0 to 0)0 (0 to 0)0 (0 to 0)6.7 (0.2 to 32.0)0 (0 to 0)26.7 (12.3 to 45.9)5.9 (0.2 to 28.7)
Stable disease (SD)23.1 (5.0 to 53.8)35.7 (12.8 to 64.9)35.7 (12.8 to 64.9)33.3 (11.8 to 61.6)33.3 (7.5 to 70.1)36.7 (19.9 to 56.1)23.5 (6.8 to 49.9)
Progression (PD)76.9 (46.2 to 95.0)50.0 (23.0 to 77.0)57.1 (28.9 to 82.3)53.3 (26.6 to 78.7)66.7 (29.9 to 92.5)33.3 (17.3 to 52.8)70.6 (44.0 to 89.7)
Not evaluable for response (NE)0 (0 to 0)14.3 (1.8 to 42.8)7.1 (0.2 to 33.9)6.7 (0.2 to 32.0)0 (0 to 0)3.3 (0.1 to 17.2)0 (0 to 0)
SecondaryMedian Progression-free Survival

Progression-free survival (PFS) is defined as the time from study treatment initiation to the first occurrence of disease progression or death (of any cause), whichever occurs first. Progressive disease defined as at least a 20% increase in the sum of the 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 to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. (Note: the appearance of one or more new lesions is also considered progressions). Patients alive and progression free were censored at the date of last follow-up, death, or last patient contact. Progression is assessed as per RECIST v1.1. Progression-free survival is estimated as a function of time using Kaplan-Meier method.

Time frame:
From start of treatment, and during treatment until progression or death for any cause, whichever occurs first, for up to 12 months.
Reported as:
Median · months
Median Progression-free Survival
monthsStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
Median Progression-free Survival1.4 (1.2 to 1.4)1.3 (1.1 to 2.9)1.4 (0.9 to 4.0)1.4 (1.0 to 1.4)1.4 (0.9 to 5.3)4.1 (1.4 to 12.5)1.8 (1.5 to 4.1)
SecondaryMedian Overall Survival

Overall survival (OS) defined as the time from randomization to death (due to any cause). Patients alive were censored at the date of last follow-up or last patient contact. Overall survival was estimated as a function of time using Kaplan-Meier method.

Time frame:
From start of treatment, and during treatment until death for any cause for up to 30 months
Reported as:
Median · months
Median Overall Survival
monthsStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
Median Overall Survival15.1 (4.4 to 17.9)6.7 (3.2 to 20.0)7.1 (2.0 to 16.3)5.6 (2.1 to 12.1)NA (NA to NA)18.3 (8.5 to NA)25.2 (8.5 to NA)

Adverse events

Collected over Adverse events (serious and non-serious) and deaths were reported for 90 days after the last treatment administration or until the start of a new antitumor therapy, whichever occurs first, up to 30 months.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Stratum 1: Advanced Leiomyosarcoma13/15 (86.7%)5/15 (33.3%)15/15 (100%)
Stratum 2: Advanced Undifferentiated Sarcoma14/16 (87.5%)10/16 (62.5%)16/16 (100%)
Stratum 3: Advanced Other Sarcoma7/16 (43.8%)9/16 (56.3%)16/16 (100%)
Stratum 4: Advanced GIST12/16 (75%)12/16 (75%)16/16 (100%)
Stratum 5: Advanced Soft-tissue Sarcomas3/10 (30%)9/10 (90%)10/10 (100%)
Stratum 6: Advanced Soft-tissue Sarcomas With Immune Signature15/35 (42.9%)14/35 (40%)35/35 (100%)
Stratum 7: Metastatic Soft-tissue Sarcoma.9/19 (47.4%)8/19 (42.1%)19/19 (100%)
Most frequent serious events
Showing 10 of 52
Most frequent serious events
EventStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
AnemiaBlood and lymphatic system disorders0/152/162/162/162/101/350/19
SpesisInfections and infestations1/150/160/160/162/101/350/19
DehydrationMetabolism and nutrition disorders0/150/160/160/162/100/350/19
Neoplasms benign, malignant and unspecified (incl cysts and polyps) - Other, specifyNeoplasms benign, malignant and unspecified (incl cysts and polyps)0/153/161/162/160/101/350/19
General disorders and administration site conditionsGeneral disorders2/151/162/161/161/101/350/19
Tumor painNeoplasms benign, malignant and unspecified (incl cysts and polyps)2/150/161/161/160/100/352/19
Infections and infestations - Other, specifyInfections and infestations0/150/160/162/160/100/350/19
DyspneaRespiratory, thoracic and mediastinal disorders0/151/162/161/160/101/350/19
FeverGeneral disorders0/150/160/160/160/104/350/19
Gastric perforationGastrointestinal disorders0/150/160/160/161/100/350/19
Most frequent other events
Showing 10 of 158
Most frequent other events
EventStratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.
FatigueGeneral disorders11/157/1611/168/169/1023/3510/19
AnemiaBlood and lymphatic system disorders3/154/169/164/162/108/355/19
Tumor painNeoplasms benign, malignant and unspecified (incl cysts and polyps)1/151/163/162/160/106/3510/19
NauseaGastrointestinal disorders2/152/163/164/162/1013/359/19
Lymphocyte count decreasedInvestigations2/152/161/161/160/1016/357/19
Abdominal painGastrointestinal disorders1/152/161/161/164/107/353/19
GGT increasedInvestigations0/151/162/161/164/103/350/19
AnorexiaMetabolism and nutrition disorders1/153/166/164/164/103/350/19
PainGeneral disorders1/151/160/166/162/100/351/19
ArthralgiaMusculoskeletal and connective tissue disorders5/151/161/162/161/102/352/19

Baseline characteristics

* Eligible population: All patients included without major violation of eligibility criteria. * Population eligible and assessable for the primary endpoint : eligible patients who received at least one administration of PEMBROLIZUMAB and one administration of Metronomic CP * Safety population: All patients with at least one treatment (any) administration.

Age, Continuous
Age, Continuous(years)Stratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.Total
Mean63.7 (56.8 to 72.2)59.1 (55.9 to 64.4)55.5 (45.4 to 60.1)42.2 (22.3 to 52.0)57.9 (44.3 to 69.9)62.2 (45.2 to 77.1)62.7 (57.0 to 69.0)63 (57 to 70)
Sex: Female, Male
Sex: Female, Male(Participants)Stratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.Total
Female85675161057
Male71110105191072
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Stratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.Total
Count of participants———————0
Region of Enrollment
Region of Enrollment(participants)Stratum 1: Advanced LeiomyosarcomaStratum 2: Advanced Undifferentiated SarcomaStratum 3: Advanced Other SarcomaStratum 4: Advanced GISTStratum 5: Advanced Soft-tissue SarcomasStratum 6: Advanced Soft-tissue Sarcomas With Immune SignatureStratum 7: Metastatic Soft-tissue Sarcoma.Total
France15161617103520129
08

Study locations

8 sites
  • Institut Bergonié
    Bordeaux, 33076, France
  • Centre Oscar Lambret
    Lille, 59020, France
  • Centre Léon Bérard
    Lyon, 69373, France
  • Institut Paoli Calmettes
    Marseille, 13273, France
  • Institut Curie
    Paris, 75005, France
  • Institut de Cancérologie de l'Ouest
    Saint-Herblain, 44805, France
  • Institut Claudius Regaud
    Toulouse, 31052, France
  • Institut Gustave Roussy
    Villejuif, 94800, France
09

References and documents

Publications

  • Toulmonde M, Penel N, Adam J, Chevreau C, Blay JY, Le Cesne A, Bompas E, Piperno-Neumann S, Cousin S, Grellety T, Ryckewaert T, Bessede A, Ghiringhelli F, Pulido M, Italiano A. Use of PD-1 Targeting, Macrophage Infiltration, and IDO Pathway Activation in Sarcomas: A Phase 2 Clinical Trial. JAMA Oncol. 2018 Jan 1;4(1):93-97. doi: 10.1001/jamaoncol.2017.1617. PubMed 28662235 ↗
  • Italiano A, Bessede A, Pulido M, Bompas E, Piperno-Neumann S, Chevreau C, Penel N, Bertucci F, Toulmonde M, Bellera C, Guegan JP, Rey C, Sautes-Fridman C, Bougouin A, Cantarel C, Kind M, Spalato M, Dadone-Montaudie B, Le Loarer F, Blay JY, Fridman WH. Pembrolizumab in soft-tissue sarcomas with tertiary lymphoid structures: a phase 2 PEMBROSARC trial cohort. Nat Med. 2022 Jun;28(6):1199-1206. doi: 10.1038/s41591-022-01821-3. Epub 2022 May 26. PubMed 35618839 ↗
  • Spalato-Ceruso M, Bouteiller F, Guegan JP, Toulmonde M, Bessede A, Kind M, Cousin S, Buy X, Palussiere J, Le Loarer F, Dadone-Montaudie B, Pulido M, Italiano A. Pembrolizumab combined with low-dose cyclophosphamide and intra-tumoral injection of the toll-like receptor 4 agonist G100 in patients with advanced pretreated soft tissue sarcoma: results from the PEMBROSARC basket study. J Hematol Oncol. 2022 Oct 27;15(1):157. doi: 10.1186/s13045-022-01377-2. PubMed 36303228 ↗
  • Sun CM, Toulmonde M, Spalato-Ceruso M, Peyraud F, Bessede A, Kind M, Cousin S, Buy X, Palussiere J, Bougouin A, Sautes-Fridman C, Fridman HW, Pulido M, Italiano A. Impact of metronomic trabectedin combined with low-dose cyclophosphamide on sarcoma microenvironment and correlation with clinical outcome: results from the TARMIC study. Mol Cancer. 2024 Feb 19;23(1):37. doi: 10.1186/s12943-024-01942-y. PubMed 38374062 ↗
  • Le Cesne A, Marec-Berard P, Blay JY, Gaspar N, Bertucci F, Penel N, Bompas E, Cousin S, Toulmonde M, Bessede A, Fridman WH, Sautes-Fridman C, Kind M, Le Loarer F, Pulido M, Italiano A. Programmed cell death 1 (PD-1) targeting in patients with advanced osteosarcomas: results from the PEMBROSARC study. Eur J Cancer. 2019 Sep;119:151-157. doi: 10.1016/j.ejca.2019.07.018. Epub 2019 Aug 21. PubMed 31442817 ↗
  • Hattinger CM, Patrizio MP, Magagnoli F, Luppi S, Serra M. An update on emerging drugs in osteosarcoma: towards tailored therapies? Expert Opin Emerg Drugs. 2019 Sep;24(3):153-171. doi: 10.1080/14728214.2019.1654455. Epub 2019 Aug 14. PubMed 31401903 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jun 2015 to primary completion in Nov 2020, 65 months.

Results were first posted in Dec 2025, 5 years after primary completion.

Of 198 non-industry phase 2 interventional studies under Sarcoma, half reached primary completion within 66 months of starting (the median), counting those still running; a quarter within 46 and three quarters within 91. This study's 65 months is close to that.

Counting every sponsor, half of 227 studies reached it within 66 months; a quarter within 43 and three quarters within 92.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 12, 2015
First posted
Apr 2, 2015
StartActual
Jun 2015
Primary completionActual
Nov 24, 2020
CompletionActual
Jan 15, 2023
Results first posted
Dec 10, 2025
Last update
Dec 10, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 10, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02406781
Lead sponsor
Institut Bergonié
Responsible party
Sponsor
First posted
Apr 2, 2015
Start date
Jun 2015
Primary completion
Nov 24, 2020
Completion
Jan 15, 2023
Results posted
Dec 10, 2025
Last update
Dec 10, 2025

Study contacts

Antoine ITALIANO, MD, PhD
study chair · Institut Bergonié

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Pembrolizumab

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