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CompletedNCT03126812Updated May 29, 2024

Neo-adjuvant Pembrolizumab in Primary Stage IV Ovarian Cancer

A Phase 1/2 interventional study of Carboplatin and Paclitaxel in Ovarian Cancer Stage IV, Peritoneal Cancer and Fallopian Tube Cancer, sponsored by The Netherlands Cancer Institute. Completed at 1 site in Netherlands. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-05-29.

Sponsored by The Netherlands Cancer Institute · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
33
Allocation
Not applicable
Ages
18 Years and older
Sex
Female
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Study summary

This is a single arm feasibility study in patients with primary FIGO stage IV serous ovarian, peritoneal, or fallopian tube cancer to evaluate neo-adjuvant + adjuvant pembrolizumab for its capacity to induce and broaden T cell responses against tumor neo-antigens.

Read the detailed description

Long-term survival in stage IV serous ovarian, peritoneal, and fallopian tube cancer is poor and has not significantly improved over the last decades. Standard treatment consists of debulking surgery and six courses of carboplatin and paclitaxel. Nevertheless, the disease recurs in >90% of women, usually within two years.

Since early observations that the presence of infiltrating T cells is associated with improved outcome, ovarian cancer is linked to a potential benefit of immunotherapy.10 More recently, T cell checkpoint blockade with anti-PD1 and anti-PDL1 have shown promising activity in platinum resistant ovarian cancer with objective and durable responses in 10-20% of patients. This finding raises the question whether anti-PD1 could also play a role in first line treatment of ovarian cancer.

To fully use the power of T cell checkpoint inhibition, sufficient TCR stimulation is required. Importantly, the amount of antigen that can provide this signal will correlate with tumor load, and because of this adjuvant immunotherapy may work most efficiently, when initiated prior to surgery. In addition, we postulate that antigen retrieval will increase after induction treatment with cytotoxic therapy.

To address these questions, we propose a feasibility study in patients with FIGO stage IV serous ovarian, peritoneal, or fallopian tube cancer in which we evaluate pembrolizumab added to standard treatment for its capacity to induce and broaden T cell responses against neo-antigens.

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Conditions studied

  • Ovarian Cancer Stage IV
  • Peritoneal Cancer
  • Fallopian Tube Cancer

Keywords

  • Primary stage 4
  • Neo adjuvant
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In context

Ovarian Neoplasms

2,695 studies on the registry are indexed under Ovarian Neoplasms; 727 are open to participants now.

This study's enrollment of 33 is below the median of 60 across 2,030 interventional studies indexed under Ovarian Neoplasms.

Browse Ovarian Neoplasms studies →

Lead sponsor

The Netherlands Cancer Institute is the lead sponsor of 224 studies on the registry; 66 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

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

Inclusion criteria

  • Written informed consent for the trial.
  • Diagnosis of primary stage IV high-grade serous ovarian, peritoneal, or fallopian tube cancer.
  • Age >= 18 years on day of signing informed consent.
  • Willing and able to provide three tumor biopsies (1 FFPE, 2 fresh frozen) prior to start of treatment
  • Performance status of 0 or 1 on the ECOG Performance Scale.
  • Adequate organ function as defined in Table 1 of the protocol
  • Female subject of childbearing potential should have a negative urine or serum pregnancy within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.

Exclusion criteria

Exclusion Criteria:

  • Previously received treatment for ovarian, peritoneal, or fallopian tube cancer.

    • Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier.
    • Has had prior chemotherapy, targeted small molecule therapy, or radiation therapy within 2 weeks prior to study Day 1 or who has not recovered (i.e., ≤ Grade 1 or at baseline) from adverse events due to a previously administered agent.
  • Known additional malignancy, unless treated with curative intent without chemotherapy at least five years ago. In situ cancers, basal cell carcinoma of the skin or squamous cell carcinoma of the skin that have undergone potentially curative therapy within the past five years may also be eligible.
  • Currently participating and receiving study therapy or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the first dose of treatment.
  • 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.
  • A known history of active TB (Bacillus Tuberculosis)
  • Hypersensitivity to pembrolizumab or any of its excipients.
  • Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study
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Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
33 participants (actual)

Study arms

  • Experimental
    Carboplatin, paclitaxel, pembrolizumab

    Carboplatin AUC= 6 paclitaxel 80 mg/m2 Pembrolizumab 200 mg starting cycle 2

    Drug: Carboplatin · Drug: Paclitaxel · Drug: Pembrolizumab

Interventions

  • DrugCarboplatin

    Carboplatin AUC=6

  • DrugPaclitaxel

    paclitaxel 80 mg/m2

  • DrugPembrolizumab

    200 mg flat dose, starting cycle 2

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What researchers measure

Primary outcomes

  1. Number of T-cells in peripheral blood

    determine the number of T cells in peripheral blood samples and tissue samples

    Time frame: up to week 52

Secondary outcomes

  1. Toxicity; Incidence of toxicity, graded according to National Cancer Institute Common Toxicity Criteria (NCI-CTC) version 4.0

    Toxicity will be analyzed in patients who have received at least one administration of pembrolizumab.

    Time frame: up to 30 days after end of treatment

  2. Response Rate

    number of patients with no viable invasive tumor left in the resection specimen

    Time frame: at week 12, debulking surgery

  3. Response rate according to RECIST

    Number of patients with partial or complete response according to RECIST

    Time frame: at week 3 and 6

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Study locations

1 site
  • Antoni van Leeuwenhoek
    Amsterdam, Netherlands
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References and documents

Individual participant data

Plan to share: Undecided — to be determinated

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 29, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03126812
Lead sponsor
The Netherlands Cancer Institute
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Apr 24, 2017
Start date
Nov 1, 2017
Primary completion
Jun 1, 2023
Completion
Mar 5, 2024
Last update
May 29, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2024. You cannot join it, but the record below documents what was studied.

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