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Head Neck CancerPhase 1/2NCT05838729

Study of RiMO-301 and Radiotherapy With PD-1 Inhibitor for the Treatment of Head-Neck Cancer

A Phase 1/2 study testing RiMO-301 in people with Head Neck Cancer and Intratumoral Injection, run by Coordination Pharmaceuticals, Inc. at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This is a prospective, open-label, single arm, non-randomized study of RiMO-301 with hypofractionated radiation and a PD-1 Inhibitor in patients with unresectable, recurrent or metastatic head-neck cancer. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Head Neck Cancer, Intratumoral Injection
What is being tested?
RiMO-301
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
16 participants
Where
1 siteUnited States
Study dates
3 Apr 2023to Dec 2026
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

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

  • Diagnosis of head-neck cancer that requires palliative radiotherapy
  • Patients with unresectable, recurrent or metastatic HNSCC, regardless if the patients have progressed on or are intolerant to platinum-based chemotherapy prior to study enrollment or if the patients are receiving pembrolizumab in the first line:
  • receiving a PD-1 inhibitor (pembrolizumab or nivolumab) as a standard of care, or
  • suitable to receive a PD-1 inhibitor (pembrolizumab or nivolumab) as a standard of care in the discretion of the treating physician or Principal Investigator
  • Must have at least 1 target lesion that is clinically accessible to RiMO-301 injection and amenable to receive RT regimens specified in this protocol
  • The selected target lesions must be measurable on cross-sectional imaging and repeated measurements at the same location should be achievable
Show all 13Show fewer
  • Target tumor not in the previously irradiated field or in the field irradiated at least six months prior to RiMO-301 injection and with no complications from the prior radiation course
  • RiMO-301 injection to multiple lesions (≤ 5 in total) in a single patient is allowed as long as the total tumor volume does not exceed 250 cm3
  • Patient must have recovered from acute toxic effects (≤ grade 1 CTCAEv5) of previous cancer treatments prior to enrollment
  • Have adequate bone marrow reserve and adequate liver function
  • Have a life expectancy of at least 12 weeks
  • ECOG score of 0-2
  • Age 18 years or older

Who cannot join

  • Have signs or symptoms of end organ failure, major chronic illnesses other than cancer, or any severe concomitant conditions
  • Symptomatic central nervous system metastases and/or carcinomatous meningitis
  • Active autoimmune disease that has required systemic treatment in the past 2 years
  • Ongoing clinically significant infection at or near the incident lesion
  • Major surgery over the target area (excluding placement of vascular access) ≤21 days from beginning of the study drug or minor surgical procedures ≤7 days. No waiting is required following implantable port, enteral feeding tube and catheter placement
  • Has received any approved or investigational anti-neoplastic agent or immunotherapy other than PD-1 inhibitors (pembrolizumab or nivolumab) within 4 weeks prior to RiMO-301 injection
  • Patients with lesions which have significant blood vessel involvement (such as carotid artery encasement) or other major structures

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site, 1 recruiting
  • University of Illinois at Chicago

    Chicago, Illinois, 60612

    Michelle Karan, 312-996-9913, makaran2@uic.edu

    Recruiting

Other trials in United States

About this study

Official title: Phase 1b/2a Study of RiMO-301 and Hypofractionated Radiotherapy With A PD-1 Inhibitor for the Treatment of Unresectable, Recurrent or Metastatic Head-Neck Cancer

This is a prospective, open-label, single arm, non-randomized study of RiMO-301 with hypofractionated radiation and a PD-1 Inhibitor in patients with unresectable, recurrent or metastatic head-neck cancer.

Read the detailed description

Primary Objectives:

  • To determine the tolerability of RiMO-301 with hypofractionated X-ray radiotherapy and a PD-1 inhibitor (pembrolizumab or nivolumab) in patients with unresectable, recurrent or metastatic head-neck cancer
  • To determine the efficacy of RiMO-301 with hypofractionated X-ray radiotherapy and a PD-1 inhibitor (pembrolizumab or nivolumab)

Secondary Objectives:

  • To evaluate progression-free survival for up to 12 months
  • To determine overall survival for up to 24 months
  • To assess patient quality of life

The target population is patients with unresectable, recurrent or metastatic head-neck cancer which is clinically accessible to intratumoral injection.

Being tested
RiMO-301
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.

  • RiMO-301Drug

    A single dose of RiMO-301 will be administered via an intratumoral injection.

    PD-1 inhibitor (pembrolizumab or nivolumab) will be administered via a 30-minute intravenous infusion until disease progression or unacceptable toxicity.

    Patients will receive hypofractionated radiation in 5 fractions.

Study groups in NCT05838729
Study groupRoleWhat they receive
RiMO-301ExperimentalIntratumoral injection of RiMO-301 followed by pembrolizumab or nivolumab followed by hypofractionated radiation
Receives: Drug: RiMO-301

What is being measured

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

  1. Determination of Recommended Dose

    • The dose limiting toxicities of RiMO-301 with hypofractionated X-ray radiotherapy and a PD-1 inhibitor, as assessed by CTCAEv5, will not be observed in 33% or more patients

    Measured: 6 weeks

  2. Evaluation of Anti-Tumor Response

    • To determine the objective response rate: complete or partial response, as defined by RECIST and itRECIST

    Measured: 12 months

Secondary outcomes (2)
  1. Evaluation of Progression-Free Survival

    Time from enrollment to local-regional recurrence, local-regional progression, distant progression or death from any cause, whichever occurs first

    Measured: 12 months

  2. Evaluation of Overall Survival

    Time from enrollment to death from any cause

    Measured: 24 months

Timeline

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

  1. First posted1 May 2023
  2. Study start3 Apr 2023
  3. Primary completionSep 2026 (estimated)
  4. Study completionDec 2026 (estimated)

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 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
16 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05838729
Sponsor's protocol ID
RiMO-HNC-IO1
Status last verified
Sep 2025
First submitted
13 Apr 2023
Last updated
17 Sep 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing RiMO-301 in people with Head Neck Cancer and Intratumoral Injection, run by Coordination Pharmaceuticals, Inc. 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 13 inclusion and 7 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: looking for participants now, as of the sponsor's last update on 17 Sep 2025. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

This study is still under way. Results are not available in the source record yet.

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

Contact Ze-Qi Xu (630-415-5601, zq@coordinationpharma.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Determination of Recommended Dose (time frame: 6 weeks). The study lists 2 primary outcomes in all. 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 17 Sep 2025.

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