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CompletedNCT06005402Updated Aug 21, 2024

Safety, Tolerability, and Pharmacokinetics of CSX-1004

A Phase 1 interventional study of CSX-1004 and Placebo in Opioid Overdose and Opioid Use Disorder, sponsored by Cessation Therapeutics, Inc.. Completed at 1 site in United States. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-08-21.

Sponsored by Cessation Therapeutics, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was May 2024, 2 years 5 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

This is a Phase 1a, randomized, double-blind, single ascending dose study, designed to assess the safety, tolerability, and PK of a single CSX-1004 injection, administered by IV infusion across a range of doses in healthy adult subjects. The study will have 3 phases: Screening, Inpatient Treatment, and Outpatient Follow-up.

The primary objective of the study is to determine the safety and tolerability of CSX-1004 Injection administered by intravenous (IV) infusion across a range of doses in healthy adult subjects.

The secondary objective of the study is to determine the pharmacokinetics (PK) of CSX-1004 Injection administered by IV infusion across a range of doses in healthy adult subjects.

02

Conditions studied

  • Opioid Overdose
  • Opioid Use Disorder
03

In context

Opiate Overdose

70 studies on the registry are indexed under Opiate Overdose; 11 are open to participants now.

This study's enrollment of 32 is below the median of 184 across 48 interventional studies indexed under Opiate Overdose.

Browse Opiate Overdose studies →

Lead sponsor

This is the only study on the registry with Cessation Therapeutics, Inc. as lead sponsor.

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

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Major Inclusion Criteria:

  • Healthy male or female subjects, aged 18 to 50 years, inclusive,
  • Minimum weight of 50.0 kg and maximum weight of 100.0 kg
  • (BMI) within the range of 18.0 to 32.0 kg/m2, inclusive

Major Exclusion Criteria:

  • Positive UDS for substances of abuse (including alcohol) at Screening or admission to the Treatment Phase
  • Current daily cigarette smoker within 3 months of Screening. Social smoking, as defined by non-daily use of nicotine-containing products, is permitted.
  • History or presence of any cardiac, psychiatric, endocrine, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, neurologic, dermatologic, renal, or other major disease or illness at Screening, which in the opinion of the Investigator, might jeopardize the safety of the subject or the validity of the study results.
Terms in these criteria, in plain language(2)

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.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

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.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
32 participants (actual)

Study arms

  • Experimental
    CSX-1004

    Single doses of CSX-1004 Injection

    Biological: CSX-1004

  • Placebo comparator
    Placebo

    Sterile saline for injection

    Biological: Placebo

Interventions

  • BiologicalCSX-1004

    Recombinant human immunoglobulin G (IgG) 1λ monoclonal antibody specific for fentanyl and structurally related fentanyl analogs

  • BiologicalPlacebo

    Sterile saline for injection

06

What researchers measure

Primary outcomes

  1. Treatment-emergent adverse events (AEs), serious AEs, and AEs leading to discontinuation

    Incidence, intensity, and causality of adverse events

    Time frame: 5 months

  2. Clinical laboratory assessments

    Hematology, biochemistry, and urinalysis

    Time frame: 5 months

  3. Vital signs

    Blood pressure and pulse rate

    Time frame: 5 months

  4. 12-Lead electrocardiogram

    Variables will include ventricular heart rate and the PR, QRS, QT, QTcB and QTcF intervals

    Time frame: 5 months

  5. Physical examination

    Complete physical examination, assessing the subject's overall health and physical condition

    Time frame: 5 months

  6. Infusion site examination

    Infusion site will be visually inspected for evidence of erythema, edema, itching, pain, infection, bleeding, abnormal healing, and any other abnormalities

    Time frame: 6 days

Secondary outcomes

  1. Cmax

    Maximum serum concentration

    Time frame: 4 months

  2. AUCinf

    Area under the curve from time zero extrapolated to infinity

    Time frame: 4 months

  3. AUClast

    Area under the curve from time zero to the last measurable concentration

    Time frame: 4 months

  4. Tmax

    Time to maximum serum concentration

    Time frame: 4 months

  5. t1/2

    beta terminal elimination half-life

    Time frame: 4 months

Other outcomes

  1. Immunogenicity

    Proportions of subjects who are positive (above the limits of quantitation) and negative (below the limits of quantitation) for anti-CSX-1004 antibodies

    Time frame: 4 months

07

Study locations

1 site
  • Dr. Vince Clinical Research
    Overland Park, Kansas 66212, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 21, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06005402
Lead sponsor
Cessation Therapeutics, Inc.
Collaborators
Dr. Vince Clinical Research
Responsible party
Sponsor
First posted
Aug 22, 2023
Start date
Aug 1, 2023
Primary completion
May 28, 2024
Completion
May 28, 2024
Last update
Aug 21, 2024

Study contacts

Steven Hull, MD
principal investigator · Dr. Vince Clinical Research

Oversight

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

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

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