Study of Circular RNA Treatment in Patients With Radiation Induced Xerostomia-1

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorRiboX Therapeutics Ltd.

About this trial

This is a first-in-human clinical study to evaluate the safety, tolerability and efficacy of RXRG001 administered in the ducts of the parotid glands in adult patients with radiation-induced xerostomia (dry mouth) and hyposalivation (reduced saliva production).

In Part 1 of the study (open-label, single-arm), patients will receive unilateral administrations of RXRG001 in 3 single ascending dose cohorts and in 3 multiple ascending dose cohorts.

Part 2 of the study has a randomized, double-blind, placebo-controlled design. Patients will receive bilateral administrations of RXRG001 in 3 multiple ascending dose cohorts.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

At least 18 years of age

Free from recurrence of your cancer and never have had another form of cancer for at least 2 years

Suffering from xerostomia and/or hyposalivation and have xerostomia symptoms which were not resolved after treatment for at least 3 months

Both parotid glands on imaging examination

Disqualifiers

Any active infection

Heart failure, reduced kidney function or uncontrolled diabetes (Hemoglobin A1c >=8%)

History of autoimmune diseases known to potentially affect the salivary glands

Any malignancy, other than head and neck cancer within the past 3 years except for certain skin and cervical cancers

Trial design

Design model

Parallel

Treatments tested in this trial

  • RXRG001

    Biological/Vaccine

    Circular ribonucleic acid encoding human aquaporin 1 encapsulated in a lipid nanoparticle

  • Placebo

    Biological/Vaccine

    Placebo (saline)

Treatment groups

42 Participants
are divided into 3 treatment groups
Group A: RXRG001 Part 1Experimental treatment 1 intervention
Group B: RXRG001 Part 2Experimental treatment 1 intervention
Group C: Placebo Part 2Placebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Incidence of treatment-emergent adverse events

Incidence of treatment-emergent adverse events

Time frame
Part 1: up to 60 weeks, Part 2: up to 60 weeks
2

Incidence of treatment-emergent serious adverse events

Incidence of treatment-emergent serious adverse events

Time frame
Part 1: up to 60 weeks, Part 2: up to 60 weeks

Secondary outcomes

Other outcomes

Sponsors and contacts

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