E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Patients with unresectable locally advanced or metastatic, rare soft tissue sarcoma, visceral sarcoma, or bone sarcoma, rare ovarian cancer, primary central nervous system lymphomas (PCNSL), rare thyroid cancer, rare malignant neuroendocrine cancer or germ-cell cancer, which is resistant or refractory to standard therapy, or for which standard therapy does not exist, or is not considered appropriate, and for which no other experimental treatment options are available. |
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E.1.1.1 | Medical condition in easily understood language |
Rare cancer resistant to standard therapy. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The primary objective of the trial is to evaluate the response to pembrolizumab monotherapy in cohorts of patients with unresectable locally advanced or metastatic, rare soft tissue sarcoma, visceral sarcoma, or bone sarcoma, rare ovarian cancer, PCNSL, rare thyroid cancer, rare malignant neuroendocrine cancer or germ-cell cancer, which is resistant or refractory to standard therapy, and for which no other treatment options are available. |
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E.2.2 | Secondary objectives of the trial |
- To identify populations, for which the IP is expected to have a clinical benefit.
- To assess the efficacy of pembrolizumab monotherapy in each cohort in terms of survival, progression occurrence and quality of response.
- To assess the safety profile of pembrolizumab monotherapy.
- To define predictive factors including biomarkers related to the response to pembrolizumab; in particular to explore whether the immunohistochemical expression of PD-L1 and other immune markers (CD3, CD4, FOXP3, CD8 or CD68/CD163) in the tumour samples (both in the tumour cells and the immune cells) is correlated with response to pembrolizumab.
- To test if the mutational load measured in tumour samples from some of the studied cohorts can be correlated with response to pembrolizumab.
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
- To identify the discriminant molecular mechanisms in patients with tumour response versus patients without tumour response within the same cohort. |
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E.3 | Principal inclusion criteria |
Patients must meet all of the following criteria to be included in the study:
1. Patient information sheet and written informed consent form signed.
2. Histologically confirmed diagnosis of a pathology corresponding to one of the following selected cancer types:
-Rare sarcoma: Alveolar soft part sarcoma, Chordoma, Dedifferentiated chondrosarcoma, epithelioid sarcoma, sarcoma with loss of INI1, malignant rhabdoid tumours, myxoid liposarcoma, angiosarcoma of the scalp, radiation induced sarcomas.
-Rare ovarian cancer: recurrent or relapsed; sex cord tumour, germ cell tumour (immature teratoma, non seminomatous germ cell & dysgerminoma), low-grade serous carcinoma, mucinous carcinoma, clear cell adenocarcinoma, small cell carcinoma, and carcinosarcoma – with histological confirmation following review by members of the Tumeurs Malignes Rares Gynécologiques (TMRG) network (French rare gynaecological tumour group)
-Primary central nervous system lymphoma: refractory primary intraocular and CNS lymphoma.
-Rare thyroid cancer: differentiated thyroid carcinoma (Papillary, follicular, Hurthle cell (oncocytic), poorly differentiated thyroid carcinoma), medullary thyroid carcinoma, anaplastic thyroid carcinoma.
-Rare malignant neuroendocrine cancer: poorly differentiated tumours refractory after 2 lines of chemotherapy, well differentiated tumours refractory after 4 lines of treatment, carcinoid tumours after 2 lines of treatment.
-Germ-cell cancer progressing after standard therapy.
3. Metastatic disease or unresectable locally advanced malignancy that is resistant or refractory to standard therapy or for which standard therapy does not exist or is not considered appropriate by the Investigator.
4. Aged ≥ 18 years old.
5. Measurable disease according to RECIST v1.1 guidelines for solid tumours (Eisenhauer, 2009); or IPCG response criteria (Abrey, 2005) for patients in the PCNSL cohort. For patients with germ-cell cancer measurable disease is defined as measurable according to RECIST v1.1 and / or abnormal levels of AFP, hCG and LDH.
6. Able to provide a FFPE biopsy sample of a metastatic site or primitive tumour tissue.
Note: Patients for whom suitable archived biopsy material is not available must be willing to undergo a biopsy of a tumour lesion prior to study entry, unless this is medically contraindicated (e.g. site inaccessible or patient safety concerns).
7. Patients must have a mandatory treatment-free interval of at least 21 days following previous systemic anti-cancer treatments.
8. Patients who have received previous systemic anticancer treatment and/or radiotherapy should have recovered from any treatment related toxicity, to a level of ≤ grade 1 (according to National Cancer Institute [NCI] common terminology criteria for adverse events, version 4 (CTCAE v4) with the exception of Grade 2 alopecia.
9. Adequate hematologic function (absolute neutrophil count ≥ 1.0 x109/L, platelets ≥ 100 x109/L, haemoglobin ≥ 9 g/L) measured within 14 days of treatment initiation.
10. Adequate renal function (creatinine clearance ≥ 50 mL/min using the MDRD or CKI EPI method) measured within 14 days of treatment initiation.
11. Adequate hepatic function (serum bilirubin ≤ 1.5 xULN unless due to Gilbert’s syndrome; aspartate aminotransferase [ASAT] and alanine aminotransferase [ALAT] ≤ 3 xULN) measured within 14 days of treatment initiation. For patients with documented liver metastasis ASAT/ALAT ≤ 5x ULN is acceptable.
12. Strictly normal blood levels of calcium and magnesium, measured within 14 days of treatment initiation.
13. Eastern Cooperative Oncology Group Performance Status of ≤ 1.
14. Estimated life expectancy ≥ 90 days.
15. Patients who are sexually active must agree to use a medically accepted method of contraception (e.g. implants, injectables, combined oral contraceptives, some intrauterine devices or vasectomized partner, for participating women; condoms for participating men) or practice complete abstinence, beginning 14 days before the first administration of IP, while on treatment and for at least 5 months after the last administration of IP for female patients, and 7 months after the last administration of IP for male patients.
16. Women of childbearing potential must have a negative urine or serum pregnancy test within 72 hours prior to the first administration of IP. If urine test results are positive or cannot be confirmed as negative, a serum pregnancy test will be required.
17. Women who are breastfeeding should discontinue nursing prior to the first administration of IP and for at least 90 days after the last administration of IP.
18. Patients must be affiliated to a Social Security System or equivalent. |
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E.4 | Principal exclusion criteria |
Patients meeting any of the following criteria will be excluded from participation in the study:
1. Prior treatment with an anti-PD1 or anti-PD-L1 antibody.
2. Eligible, and willing, to participate in a clinical trial of an alternative anticancer therapy targeting their disease, which is open to accrual in France.
3. Concurrent steroid medication at a dose greater than prednisone 10 mg/day or equivalent. For patients with PCNSL or germ-cell cancer, concurrent steroid medication at a dose greater than prednisone 20 mg/day or equivalent.
4. 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 (eg., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
5. History of (non-infectious) pneumonitis that required steroids, or current pneumonitis.
6. History of severe hypersensitivity reaction to any monoclonal antibody therapy
7. Radiotherapy (except for brain and extremities) within 21 days prior to the first administration of IP.
8. Treatment with other investigational drugs or participation in another clinical trial within 21 days prior to the first administration of IP or concomitantly with the trial.
9. Has known symptomatic central nervous system (CNS) metastases. Patients with previously treated brain metastases may participate provided they are stable (without evidence of progression by imaging for at least four weeks prior to the first dose of trial treatment and any neurologic symptoms have returned to baseline), have no evidence of new or enlarging brain metastases, and are not using steroids for at least 7 days prior to trial treatment.
10. Has known carcinomatous meningitis or a history of leptomeningeal disease except for patients with primary CNS lymphoma.
11. Serum creatinine > 1.5 xULN or glomerular filtration rate < 50 ml/min.
12. Lymphocytes count below 1,000/mm3 and CD4+ count below 500/mm3 as assessed by routine blood phenotyping.
13. Other malignancies within the past 5 years other than basal cell skin cancer or in situ carcinoma of the cervix.
14. Active serious infections in particular if requiring systemic antibiotic or antimicrobial therapy.
15. Active or chronic hepatitis B, hepatitis C and/or human immunodeficiency virus infection (HIV 1/2 antibodies), or a known history of active Tuberculosis bacillus.
16. Live vaccine received within 30 days of planned start of study treatment.
Note: Seasonal influenza vaccines for injection are generally inactivated vaccines and are allowed; however intranasal influenza vaccines (e.g. Flu-Mist®) are live attenuated vaccines, and are not allowed.
17. Active alcohol or drug abuse.
18. Psychological, familial, sociological or geographical factors potentially hampering compliance with the study protocol and follow-up schedule.
19. Any condition which in the Investigator’s opinion makes it undesirable for the subject to participate in the trial or which would jeopardize compliance with the protocol. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Objective response rate (ORR) per cohort, defined as the percentage of patients in each cohort with a complete response (CR) or partial response (PR), measured at the first scheduled disease assessment following study treatment initiation (Day 84, ± 7 days) as assessed by an IRC according to RECIST v1.1 for patients with solid tumours, or RECIST v1.1 combined with biomarker assessment for patients with germ-cell cancer, or the IPCG response criteria for patients with PCNSL.
Patients who withdraw from the study prior to this time point and patients with non-evaluable disease will be considered as ‘non-responders’. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
- Progression-free survival, defined as the time from inclusion until documented disease progression (PD) according to RECIST v1.1, or RECIST v1.1 combined with biomarker assessment, or IPCG response criteria, or death, whichever occurs first.
- Overall survival, defined as the time from inclusion until death due to any cause.
- Best response to treatment according to RECIST v1.1, or RECIST v1.1 combined with biomarker assessment, or IPCG response criteria, measured at any disease assessment during the course of the study.
- Response duration, defined as the time from first observation of objective response (i.e. PR or CR) according to RECIST v.1.1, or RECIST v1.1 combined with biomarker assessment, or IPCG response criteria, until PD or death, whichever occurs first.
- Time to response, defined as the time from inclusion until observation of objective response (i.e. PR or CR) according to RECIST v1.1, or RECIST v1.1 combined with biomarker assessment, or IPCG response criteria, during the course of the study.
- Frequency and severity of adverse events assessed according to the NCI CTCAE v4.
- Progression-free survival, OS and ORR in subgroups of patients according to expression level of PD-L1 and other immune markers (high versus low expression with a cut-off value set at the median for the population measured). |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 20 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |