Cisplatin+Pembrolizumab+RT in Vulvar Cancer

  • STATUS
    Recruiting
  • End date
    Jan 30, 2026
  • participants needed
    24
  • sponsor
    Massachusetts General Hospital
Updated on 19 April 2022
total bilirubin
absolute neutrophil count
measurable disease
carcinoma
anticoagulants
anticoagulant therapy
metastasis
primary tumor

Summary

This research is being done to see how well the combination of a standard of care drug, investigational drug, and radiation therapy work against unresectable vulvar squamous cell carcinoma.

This research study involves the following:

  • Cisplatin (standard of care drug)
  • Pembrolizumab (investigational drug)
  • Radiation Therapy (standard of care intervention)

Description

This is a single-arm phase 2 clinical trial involving women with unresectable, incompletely resected, recurrent, or metastatic vulva squamous cell carcinoma. This study combines cisplatin, pembrolizumab, and radiation therapy to see if this combination further increases participants' immune system's efficiency in killing their tumor, and if the combination decreases the chances of participants' cancer coming back.

The research study procedures include screening for eligibility and study treatment including evaluations and follow up visits.

This research study involves the following:

  • Cisplatin (standard of care drug)
  • Pembrolizumab (investigational drug)
  • Radiation Therapy (standard of care intervention)

Participants will receive study treatment for up to 36 weeks and will be followed for up to 3 years.

It is expected that about 24 people will take part in this research study.

Phase II clinical trials test the safety and effectiveness of an investigational drug to learn whether the drug works in treating a specific disease. "Investigational" means that the drug is being studied. The U.S. Food and Drug Administration (FDA) has approved cisplatin as a treatment option for vulva squamous cell carcinoma. The FDA has not approved pembrolizumab for vulva squamous cell carcinoma, but it has been approved for other uses. Cisplatin is a chemotherapy drug and will be given to participants per standard of care.

Radiation therapy will be given to you per standard of care. Pembrolizumab is a drug that may target participants immune systems to increase its efficiency in targeting and killing illnesses and diseases, such as unresectable vulvar squamous cell carcinoma.

Details
Condition Vulvar Cancer, Vulvar Squamous Cell Carcinoma
Treatment radiation therapy, cisplatin, Pembrolizumab
Clinical Study IdentifierNCT04430699
SponsorMassachusetts General Hospital
Last Modified on19 April 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Participants must have histologically or cytologically confirmed unresectable, incompletely resected, recurrent, or metastatic squamous cell carcinoma of the vulva.Patients with unresectable disease are defined as T2 or T3 primary tumors (N0-3, M0) not amenable to surgical resection by standard radical vulvectomy
Participants must have measurable disease based on RECIST 1.1. Lesions situated in a previously irradiated area are considered measurable if progression has been demonstrated in such lesions
Have provided archival tumor tissue sample or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated. Formalin-fixed, paraffin embedded (FFPE) tissue blocks are preferred to slides
Prior therapy: Participants with no prior therapy are eligible and patients with recurrent disease must not have had more than two lines of cytotoxic therapy. Topical or hormonal therapy are not counted towards prior lines. Prior treatment with immunotherapy is allowed, provided treatment was not stopped for grade 2 or greater adverse events
Time from prior therapy
Systemic anti-neoplastic therapy: 5 half-lives or 4 weeks, whichever is shorter
Hormonal therapy is not considered anti-neoplastic therapy
Radiotherapy: Any prior irradiation is acceptable provided the site being considered for study has not been previously irradiated
Age ≥18 years. Because insufficient dosing or adverse event data are currently
available on the use of pembrolizumab in combination with cisplatin-sensitized
ECOG performance status of 0 or 1
Participants must have adequate organ and marrow function as defined below (Table 1)
radiation therapy participants <18 years of age, children are excluded. Vulva
Table 1: Adequate Organ Function Laboratory Values
cancer is rare in the pediatric population
Hematological
Renal
Absolute neutrophil count (ANC) ≥1500/μL
Platelets ≥100 000/μL
Hepatic
Hemoglobin ≥9.0 g/dL or ≥5.6 mmol/La
Creatinine OR Measured or calculated b creatinine clearance (GFR can also be used in place of creatinine or CrCl) ≤1.5 × ULN OR ≥50 mL/min for participant with creatinine
Coagulation
Total bilirubin ≤1.5 ×ULN OR direct bilirubin ≤ULN for participants with total bilirubin levels >1.5 × ULN
ALT (SGPT)=alanine aminotransferase (serum glutamic pyruvic transaminase); AST (SGOT)=aspartate aminotransferase (serum glutamic oxaloacetic transaminase); GFR=glomerular filtration rate; ULN=upper limit of normal
AST (SGOT) and ALT (SGPT) ≤2.5 × ULN (≤5 × ULN for participants with liver metastases)
Criteria must be met without erythropoietin dependency and without packed red blood cell (pRBC) transfusion within last 2 weeks
Creatinine clearance (CrCl) should be calculated per institutional standard
International normalized ratio (INR) OR prothrombin time (PT) Activated partial thromboplastin time (aPTT) ≤1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or aPTT is within therapeutic range of intended use of anticoagulants
Note: This table includes eligibility-defining laboratory value requirements for treatment; laboratory value requirements should be adapted according to local regulations and guidelines for the administration of specific chemotherapies
Not a woman of childbearing potential (WOCBP) as defined in Appendix B OR
A WOCBP must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, during study treatment, and for at least twelve weeks after the last dose of study treatment. Should a woman become pregnant or suspect she is pregnant while she is pregnant while she is participating in this study, she should inform her treating physician immediately
Participant must be female, and is eligible to participate if she is not pregnant (see
Ability to understand and the willingness to sign a written informed consent document
Appendix B), not breastfeeding, and at least one of the following conditions
applies

Exclusion Criteria

Patients who in the opinion of the investigator cannot safely receive a minimum of 30 Gy in 10 fractions are not eligible for the trial
Participants who have received prior systemic anti-cancer therapy including investigational agents within 4 weeks prior to first dose of study treatment. Note: If participant received major surgery, they must have recovered adequately from the toxicity and/or complications from the intervention prior to starting study treatment
Has received prior radiotherapy within 2 weeks of start of study treatment. Participants must have recovered from all radiation-related toxicities, not require corticosteroids, and not have had radiation pneumonitis. Re-irradiation to a previously treated site will not be permitted
Participants with vulvar melanomas, sarcomas, extramammary Paget's disease, or basal cell carcinoma
Participants with a history of gastrointestinal or colovesicular fistulae
Participants must have recovered from all AEs due to previous therapies to ≤Grade 1 or baseline
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
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 treatment
Participants who have received a live vaccine within 30 days prior to the first dose of study drug. Examples of live vaccines include, but are not limited to, the following: measles, mumps, rubella, varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin (BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally killed virus vaccines and are allowed; however, intranasal influenza vaccines (eg, FluMist®) are live attenuated vaccines and are not allowed
Has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis
Has an active infection requiring systemic therapy
Patients with a history of other invasive malignancies, with the exception of nonmelanoma skin cancer, are excluded if there is any evidence of other malignancy being present within the last five years. Patients are also excluded if their previous cancer treatment contraindicates this protocol therapy
Participants with uncontrolled intercurrent illness
Participants with psychiatric illness/social situations that would limit compliance with study requirements
Has a known history of Hepatitis B (defined as Hepatitis B surface antigen [HBsAg] reactive) or known active Hepatitis C virus (defined as HCV RNA [qualitative] is detected) infection. Note: no testing for Hepatitis B and Hepatitis C is required
Has a known history of active TB (Bacillus Tuberculosis)
Pregnant or nursing women are excluded from this study because effects of agents used in this study on infants or the developing human fetus are unknown
Presence of other malignancies unless they are considered cured by patient's oncologist
Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
Has a known history of Human Immunodeficiency Virus (HIV)
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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