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Head and Neck CancerPhase 2NCT04313504

Study Evaluating the Efficacy of Niraparib and Dostarlimab (TSR-042) in Recurrent/Metastatic HNSCC

A Phase 2 study testing Niraparib and Dostarlimab in people with Head and Neck Cancer, run by Trisha Wise-Draper at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine the best overall response of the combination of dostarlimab and niraparib in patients with recurrent and/or metastatic HNSCC patients. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Head and Neck Cancer
What is being tested?
Niraparib and Dostarlimab
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
4 Nov 2020to 4 Mar 2026
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically, cytologically, or radiographically confirmed recurrent or metastatic non cutaneous HNSCC for which there are no surgical or radiation curative options.
  • ECOG performance status ≤2
  • Patients must be able to swallow pills

Who cannot join

  • Nasopharyngeal and salivary gland tumors
  • Patients who have not recovered from adverse events due to prior anti-cancer therapy with the exception of alopecia
  • Prior exposure to both immunotherapy drugs (PD-1, PDL-1, CTLA-4 inhibitors) and PARP inhibitors. Single exposure to either immunotherapy or PARP inhibitors is allowable.
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to niraparib or dostarlimab.
  • Patients with uncontrolled intercurrent illness.
  • Requirement of any use of steroids greater than the equivalent of 10mg prednisone daily is not allowed.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Cincinnati Medical Center

    Cincinnati, Ohio, 45219

Other trials in United States

About this study

Official title: An Open-label, Phase II Study Evaluating the Efficacy of Niraparib and Dostarlimab (TSR-042) in Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma Patients

The purpose of this study is to determine the best overall response of the combination of dostarlimab and niraparib in patients with recurrent and/or metastatic HNSCC patients.

Read the detailed description

Recurrent and/or metastatic HNSCC patients will be treated with combination of the PD-1 inhibitor (dostarlimab) and PARPi (niraparib) concurrently and ORR, PFS and OS will be determined.

Being tested
Niraparib, Dostarlimab
Medical subject headings
Head and Neck Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • NiraparibDrug

    Also called ZEJULA

    Niraparib \& Dostarlimab combination

  • DostarlimabDrug

    Also called TSR-042

    Niraparib \& Dostarlimab combination

Study groups in NCT04313504
Study groupRoleWhat they receive
Niraparib & DostarlimabExperimentalNiraparib starting on Day 0. Niraparib will be administered as continuous daily dose, orally 200 or 300 mg. Dostarlimab IV administered via a 30-minute infusion on Day 1 of every 21 day cycle. 500mg for first 4 doses followed by 1000 mg every 6 weeks.
Receives: Drug: Niraparib; Drug: Dostarlimab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Overall Response

    Measured by assessing best overall response using RECIST 1.1 in subjects in recurrent and/or metastatic HNSCC patients receiving combination of niraparib and dostarlimab.

    Measured: 8 weeks

Secondary outcomes (2)
  1. Progression Free Survival

    Measured using Kaplan Meier Curves from time of treatment start until time of progression

    Measured: 1 and 3 years

  2. Overall Survival

    Measured using Kaplan Meier Curves from diagnosis until time of death

    Measured: Through study completion, an average of 10 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Mar 2020
  2. Study start4 Nov 2020
  3. Primary completion1 Jun 2025
  4. Study completion4 Mar 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04313504
Sponsor's protocol ID
UCCI-HN-19-03
Status last verified
May 2026
First submitted
16 Mar 2020
Last updated
7 May 2026
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Niraparib and Dostarlimab in people with Head and Neck Cancer, run by Trisha Wise-Draper at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 May 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Overall Response (time frame: 8 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 May 2026.

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