ClinicalTrials.gg
CompletedNCT05314933Updated Oct 12, 2023

Safety and Pharmacokinetic Study of Intranasal 2-DG in Healthy Volunteers

A Phase 1 interventional study of 2-Deoxyglucose and Placebo in Acute Nasopharyngitis, sponsored by G.ST Antivirals GmbH. Completed at 1 site in Austria. Open to participants aged 18 Years to 99 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-10-12.

Sponsored by G.ST Antivirals GmbH · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
45
Allocation
Randomized
Ages
18 Years to 99 Years
Sex
All
01

Study summary

2-DG-01 is a randomized, double-blind, placebo-controlled, single and multiple ascending dose phase 1 study assessing safety, tolerability and pharmacokinetics of 2-DG in normal healthy volunteers (NHV). The safety and pharmacokinetics of 2-DG are assessed after single or multiple intranasal administrations.

Read the detailed description

2-DG-01 is a randomized, placebo-controlled, double- blind single and multiple ascending dose phase 1 study in normal healthy male and female volunteers aged 18 years or older.

The primary objective of this study is to assess the clinical safety and tolerability of intranasal 2-DG in NHVs.

The secondary objective of this study is to assess the human pharmacokinetics of 2-DG.

The study is divided in two sub-parts: Part A, a single ascending dose (SAD) study of 2-DG and Part B, a multiple ascending dose (MAD) study.

Part A consists of 3 cohorts: Cohorts 1 and 2 with a randomization ratio for 2-DG to placebo of 4:1 and Cohort 3 with a randomization ratio for 2-DG to placebo of 8:2.

Part B consists of 3 cohorts: Cohort 4 with a a randomization ratio for 2-DG to placebo of 4:1 and Cohorts 5 and 6 with a randomization ratio for 2-DG to placebo of 8:2.

Cohorts 1, 2 and 4 will also be controlled by randomized intranasal application of placebo into the opposite nostril to obtain an intra-individual estimate for local tolerability. Other cohorts will receive either 2-DG or placebo into both nostrils.

Interim safety reviews are performed by a Data Monitoring Committee.

02

Conditions studied

  • Acute Nasopharyngitis

Keywords

  • Virus disease
  • Respiratory infection
  • Common cold virus
  • Rhinovirus
03

In context

Common Cold

219 studies on the registry are indexed under Common Cold; 23 are open to participants now.

This study's enrollment of 45 is below the median of 150 across 184 interventional studies indexed under Common Cold.

Browse Common Cold studies →

Lead sponsor

G.ST Antivirals GmbH is the lead sponsor of 2 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 99 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Healthy male or female volunteers, age ≥ 18 years old at screening
  • Females must be (> 1 year since last menstruation)
  • Able to comprehend and to give
  • Able to cooperate with the investigator, to comply with the requirements of the study, and to complete the full sequence of protocol-related procedures
  • Undergone full immunisation against SARS-CoV2 or status post infection with SARS-CoV2 (both as defined by the Austrian Ministry of Health)

Exclusion criteria

Exclusion Criteria:

  • Frequent epistaxis (equal to or greater than 1/month)
  • Hypo- or anosmia
  • Symptoms of rhinitis, allergy or common cold disease at screening and at study initiation
  • Medical history of diabetes mellitus of any type
  • abnormal findings at screening
  • Preceding nasal surgery or sinus surgery
  • Medical history of allergic rhinitis or chronic condition of the upper or lower respiratory tract with active symptoms within 30 days prior to screening
  • SARS-CoV-2 infection positive by PCR test at screening
  • Vulnerable subjects as defined by GCP
  • Subjects in a dependency relationship towards the investigators, e.g. as employees
  • Substance abuse, mental illness, or any reason that makes it unlikely in the judgment of the investigator for the subject to be able to comply fully with study procedures
  • Use of medication (including prophylactic treatments) during 2 weeks before the start of the study, which in the judgment of the investigator may adversely affect the subject's welfare or the integrity of the study's results
  • Concurrent treatment with other experimental product or participation in another clinical trial with any product within 30 days or 5 elimination half-lives (whichever is longer) prior to treatment start
  • Scheduled vaccination appointments during the study period
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
45 participants (actual)

Study arms

  • Active comparator
    Study drug

    Each subject receives either a single dose (SAD) or a multiple dose (MAD) of a 3.5% 2-Deoxyglucose as nasal spray solution. The starting dose for the first cohort is 3.5 mg/day up to a maximum of 84 mg/day at cohort 6.

    Drug: 2-Deoxyglucose

  • Placebo comparator
    Placebo

    Each subject receives either a single (SAD) or multiple (MAD) dose of placebo. The dose for each cohort is corresponding the amount of solution needed in the verum group.

    Other: Placebo

Interventions

  • Intranasal administration

    Also known as: 2-DG, 2-Deoxy-D-glucose

  • OtherPlacebo

    Intranasal administration

06

What researchers measure

Primary outcomes

  1. Adverse drug reactions (ADRs)

    Number of ADRs after a single dose of 2-DG assessed by type, frequency and severity of ADRs graded as per Common Terminology Criteria for Adverse Events (CTCAE).

    Time frame: until 24 hours after single drug dosing

  2. Adverse drug reactions (ADRs)

    Number of ADRs after multiple doses of 2-DG assessed by type, frequency and severity of ADRs graded as per Common Terminology Criteria for Adverse Events (CTCAE).

    Time frame: until 168 hours after start of multiple drug dosing

Secondary outcomes

  1. Biodistribution of a single dose of 2-DG

    Analysis of 2-DG concentrations in plasma and nasal wash samples measured by LC-MS (µg/ml).

    Time frame: baseline,0.5 hours, 2 hours, 4 hours, 6 hours after single drug dosing

  2. Biodistribution of multiple doses of 2-DG

    Analysis of 2-DG concentrations in plasma and nasal wash samples measured by LC-MS (µg/ml).

    Time frame: baseline, 12 hours, 15 hours, 24 hours, 72 hours, 168 hours after start of multiple drug dosing

  3. Local tolerability of a single dose of 2-DG

    Abnormal physical examination findings in the nasal cavity (type, frequency, severity of medical abnormalities, scoring of self-reported symptoms).

    Time frame: baseline, 6 hours, 24 hours after single drug dosing

  4. Local tolerability of multiple doses of 2-DG

    Abnormal physical examination findings in the nasal cavity (type, frequency, severity of medical abnormalities, scoring of self-reported symptoms).

    Time frame: baseline, 3 hours, 12 hours, 24 hours after start of multiple drug dosing

  5. Olfactory function after a single dose of 2-DG

    Change in olfactory capacity using sniffing sticks measured by Threshold-Discrimination-Identification score (TDI score). Minimum value = 0 , maximum value= 48. A higher score means a better outcome.

    Time frame: baseline, 24 hours after single drug dosing

  6. Olfactory function after multiple doses of 2-DG

    Change in olfactory capacity using sniffing sticks measured by Threshold-Discrimination-Identification score (TDI score). Minimum value = 0 , maximum value= 48. A higher score means a better outcome.

    Time frame: baseline, 24 hours, 72 hours, 168 hours after start of multiple drug dosing

  7. Premature terminations due to ADRs after a single dose of 2-DG

    Number of premature terminations due to ADRs that are assessed by type, frequency and severity graded as per Common Terminology Criteria for Adverse Events (CTCAE).

    Time frame: until 24 hours after single drug dosing

  8. Premature terminations due to ADRs after multiple doses of 2-DG

    Number of premature terminations due to ADRs that are assessed by type, frequency and severity graded as per Common Terminology Criteria for Adverse Events (CTCAE).

    Time frame: until 168 hours after start of multiple drug dosing

  9. Adverse events after single dose 2-DG

    Number of AEs assessed by type, frequency and severity graded as per Common Terminology Criteria for Adverse Events (CTCAE).

    Time frame: until 24 hours after single drug dosing

  10. Adverse events after multiple doses 2-DG

    Number of AEs assessed by type, frequency and severity graded as per Common Terminology Criteria for Adverse Events (CTCAE).

    Time frame: until 168 hours after start of multiple drug dosing

07

Study locations

1 site
  • Medical University of Vienna
    Vienna, 1090, Austria
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2022 to primary completion in Aug 2023, 16 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 3, 2022
First posted
Apr 7, 2022
StartActual
Mar 3, 2022
Primary completionActual
Aug 1, 2023
CompletionActual
Sep 27, 2023
Last update
Oct 12, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 12, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05314933
Lead sponsor
G.ST Antivirals GmbH
Responsible party
Sponsor
First posted
Apr 7, 2022
Start date
Mar 3, 2022
Primary completion
Aug 1, 2023
Completion
Sep 27, 2023
Last update
Oct 12, 2023

Oversight

Data monitoring committee
Yes
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 Oct 2023. You cannot join it, but the record below documents what was studied.

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Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

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Studies of the drug tested here: Deoxyglucose

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