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Unknown

NRS-033 for Healthy Volunteers

Phase 1
Waitlist Available
Research Sponsored by Nirsum Labs
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Male or female ≥18 and ≤55 years of age at time of consent
Agree not to take opioid analgesics.
Must not have
Clinically significant medical or psychiatric diagnosis (assessed on history, physical exam, ECG, and/or blood tests; includes significant history of cardiovascular, pulmonary, hepatic, gallbladder, or biliary tract, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, psychiatric disease, or active sexually transmitted disease).
Significant neuropsychiatric diagnosis (e.g., major depression, suicidal ideation, multiple sclerosis, dementia) as reported by the subject, or a past history of suicide attempt.
Timeline
Screening 3 weeks
Treatment Varies
Follow Up from predose through end of study visit, assessed up to study completion, an average of 15 months

Summary

This trial tests a new drug in healthy adults aged 18 to 55. Researchers will observe how the drug works and monitor for any reactions. Participants will stay at a research center for a short period for close monitoring.

Who is the study for?
Healthy adults, aged 18-55, can join this trial. Men must use condoms and women need a negative pregnancy test and agree to contraception. Participants should drink alcohol within low-risk limits, not take opioids or certain other drugs, have no significant medical/psychiatric issues or recent surgeries/injuries.
What is being tested?
The study is testing NRS-033 in healthy volunteers compared to a placebo. It's the first time humans will receive it (Phase 1), with increasing doses given once to see how safe it is and how the body reacts over time.
What are the potential side effects?
Since this is a first-in-human study for NRS-033, specific side effects are unknown but may include typical drug trial reactions such as headaches, nausea, fatigue or allergic responses.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I am between 18 and 55 years old.
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I agree not to take any opioid painkillers.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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I do not have any major health or mental health issues.
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I have a significant mental health condition or a history of suicide attempts.
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I am not pregnant, breastfeeding, or planning to become pregnant during the study.
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I drink less than the specified alcohol limits.
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I have used opioid medications for a long time.
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I have taken medication for opioid addiction, like methadone or buprenorphine.
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I am allergic to certain opioid antagonists or ingredients like benzyl alcohol or sesame oil.
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I have a history of fainting, low blood pressure, or low blood sugar.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~from predose through end of study visit, assessed up to study completion, an average of 15 months
This trial's timeline: 3 weeks for screening, Varies for treatment, and from predose through end of study visit, assessed up to study completion, an average of 15 months for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Discontinuation Due to Adverse Events (AEs)
Incidence of Treatment Emergent Adverse Events (TEAEs)
Pharmacokinetics: AUC0-inf %extrapolation
+10 more

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: NRS-033: Cohorts 1-3Experimental Treatment1 Intervention
Cohorts 1-3: 6 participants in each cohort will receive active drug (NRS-033)
Group II: Placebo: Cohorts 1-3Placebo Group1 Intervention
Cohorts 1-3: 2 participants in each cohort will receive the matching placebo dose

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
In early-phase clinical trials, such as single ascending dose studies, the primary focus is on understanding the pharmacokinetics and pharmacodynamics of new drugs or biologics. Pharmacokinetics involves studying how the drug is absorbed, distributed, metabolized, and excreted in the body, while pharmacodynamics examines the drug's biological effects and mechanisms of action. These studies are crucial for determining the safety, tolerability, and optimal dosing of the drug in healthy subjects, which helps to ensure that the drug can be safely and effectively used in future trials involving patients with specific medical conditions.
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Logistics

Participation is compensated

You will be compensated for participating in this trial.

Who is running the clinical trial?

Nirsum LabsLead Sponsor
National Institute on Drug Abuse (NIDA)NIH
2,577 Previous Clinical Trials
3,286,815 Total Patients Enrolled
N Shah, MDStudy DirectorNirsum Labs

Media Library

NRS-033 (Unknown) Clinical Trial Eligibility Overview. Trial Name: NCT05724797 — Phase 1
Healthy Subjects Research Study Groups: NRS-033: Cohorts 1-3, Placebo: Cohorts 1-3
Healthy Subjects Clinical Trial 2023: NRS-033 Highlights & Side Effects. Trial Name: NCT05724797 — Phase 1
NRS-033 (Unknown) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05724797 — Phase 1
Healthy Subjects Patient Testimony for trial: Trial Name: NCT05724797 — Phase 1
~10 spots leftby Nov 2025