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Cocaine Use DisorderPhase 1NCT06025396

Multiple Ascending Dose Study of TMP-301 in Healthy Subjects

A Phase 1 study testing Cohort 1 - TMP-301, Cohort 2 - TMP-301 and Cohort 3 - TMP-301 in people with Cocaine Use Disorder and Substance Use Disorders, run by Tempero Bio, Inc. at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A PHASE 1, RANDOMIZED, PLACEBO CONTROLLED, MULTIPLE ASCENDING DOSE (MAD) STUDY TO EVALUATE THE SAFETY, TOLERABILITY, AND PHARMACOKINETICS OF TMP-301 IN HEALTHY SUBJECTS. Read more about this study

Who is it for?
Ages 18 to 59 yearsHealthy volunteers can take part
What is being tested?
Cohort 1 - TMP-301, Cohort 2 - TMP-301 and Cohort 3 - TMP-301
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteUnited States
Study dates
6 Jan 2023to 2 Jan 2024
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 to 59 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Provision of signed and dated informed consent form (ICF)
  • Stated willingness to comply with all study procedures and availability for the duration of the study
  • Healthy adult male or female
  • If male, meets one of the following criteria: a) Is able to procreate and agrees to use one of the accepted contraceptive regimens and not to donate sperm from the first study drug administration to at least 90 days after the follow-up visit. An acceptable method of contraception includes one of the following: Abstinence from heterosexual intercourse, or Male condom with spermicide or male condom with a vaginal spermicide (gel, foam, or suppository); or b) Is unable to procreate; defined as surgically sterile (ie, has undergone a vasectomy at least 180 days prior to the first study drug administration)
  • If female, meets one of the following criteria: (1) Physiological postmenopausal status, defined as the following: a) absence of menses for at least 12 months prior to the first study drug administration (without an alternative medical condition); and b) Follicle stimulating hormone (FSH) levels ≥ 40 mIU/mL at Screening; Or (2) Surgical postmenopausal status, defined as the following: a) bilateral oophorectomy, salpingectomy, or tubal ligation; hysterectomy
  • Aged at least 18 years but not older than 59 years, inclusive, at the time of informed consent
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  • Body mass index (BMI) within 18.5 kg/m2 to 32.0 kg/m2, inclusively
  • Minimum body weight of at least 50.0 kg
  • Non- or ex smoker (An ex smoker is defined as someone who completely stopped using nicotine products for at least 90 days prior to the first study drug administration)
  • Must be willing to abstain from drinking coffee or caffeine containing beverages during the study, except where part of the study procedures
  • Has supine blood pressure and pulse rate within the following ranges after 5 minutes rest: systolic blood pressure 90 to 140 mmHg, diastolic blood pressure 50 to 90 mmHg, and pulse rate 45 to 90 bpm at Screening and on Day -1
  • Have no clinically significant diseases captured in the medical history or evidence of clinically significant findings on the physical examination (including vital signs) and/or ECG, as determined by an Investigator
  • Has clinical laboratory test results within the reference ranges of the testing laboratory, with the exception of results outside the reference ranges that are deemed not clinically significant by the Investigator (or designee) at Screening and check-in *

Who cannot join

  • Female who is lactating
  • Female who is pregnant according to the pregnancy test at Screening or prior to the first study drug administration
  • Female using the following systemic contraceptives: oral, patch or vaginal ring, in the 28 days prior to the first study drug administration and during the study
  • Female using hormone replacement therapy in the 28 days prior to the first study drug administration and during the study
  • Female using the following systemic contraceptives: injections or implant, or hormone releasing intrauterine device in the 13 weeks prior to the first study drug administration and during the study
  • Drinking excessive amounts of tea, coffee, chocolate, and/or beverage or eating food containing caffeine (> 2 cups/day)
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  • Use of tobacco or nicotine containing products (including but not limited to; cigarettes, electronic cigarettes, pipes, cigars, chewing tobacco, nicotine patch, or nicotine gum) within 90 days prior to the first study drug administration and the inability to abstain from nicotine containing products until the follow-up visit.
  • Past or current history of any mental, behavioral, or neurodevelopmental disorder as defined by the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) or significant risk of developing a psychosis (assessed by PRIME screen) or a personal history of psychotic symptoms (hallucinations or delusions) with or without a formal psychiatric diagnosis. Subjects with family history of significant mental, behavioral, or neurodevelopmental disorders unless determined by the Investigator (or designee) and agreed by the Medical Monitor to be non-clinically significant (NCS) will be excluded.
  • History or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, gastrointestinal, neurological, respiratory, or endocrine disorder, unless determined by the Investigator (or designee) and agreed by the Medical Monitor to be NCS
  • Active or history of cardiovascular or cerebrovascular disease, including hypertension, angina, ischemic heart disease, transient ischemic attacks, bundle branch block, evidence of myocardial ischemia, stroke, and peripheral arterial disease sufficient to cause symptoms and/or require therapy to maintain stable status
  • History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the Investigator (or designee)
  • Active neoplastic disease or history of any neoplastic disease within 5 years of Screening (except for basal or squamous cell carcinoma of the skin or carcinoma in situ that has been definitely treated with standard of care)
  • Active infection (eg, sepsis, pneumonia, abscess) or a serious infection (eg, resulting in hospitalization or requiring parenteral antibiotic treatment) within 6 weeks prior to dosing
  • History of stomach or intestinal surgery or resection that would potentially alter absorption and/or excretion of orally administered drugs (uncomplicated appendectomy and hernia repair will be allowed)
  • Any of the following at Screening and/or prior to the first study drug administration:
  • QT interval corrected for heart rate using Fridericia's method (QTcF) > 450 ms confirmed by repeat measurement
  • QRS duration > 110 ms confirmed by confirmed by repeat measurement
  • PR interval > 220 ms confirmed by repeat measurement
  • Findings which would make QTc measurements difficult or QTc data uninterpretable
  • History of additional risk factors for torsades de pointe (eg, heart failure, hypokalemia, family history of long QT syndrome)
  • Maintenance therapy with any drug or significant history of drug dependency or alcohol abuse (> 3 units of alcohol per day, intake of excessive alcohol, acute or chronic)
  • Positive test result for alcohol, cotinine, and/or drugs of abuse at Screening or prior to the first drug administration
  • Positive screening results to HIV Ag/Ab combo, hepatitis B surface antigen or hepatitis C virus tests
  • Any other clinically significant abnormalities in laboratory test results at Screening that would, in the opinion of an Investigator, increase the subject's risk of participation, jeopardize complete participation in the study, or compromise interpretation of study data
  • Intake of an IP in the 28 days prior to the first study drug administration
  • Use of any prescription drugs in the 28 days prior to the first study drug administration, that in the opinion of an Investigator would put into question the status of the participant as healthy
  • Use of St. John's wort in the 28 days prior to the first study drug administration and during the study
  • Consumption of any foods or beverages which alter CYP1A2 activity, e.g., barbecued food or cruciferous vegetables, such as broccoli and cauliflower, within 14 days prior to (first) check-in (a list of prohibited foods will be provided to subjects)
  • Consumption of any foods or beverages containing Seville-type oranges, grapefruit, or poppy seeds within 7 days prior to (first) check-in
  • Receipt of blood products within 2 months prior to check-in
  • Donation of 1 unit of blood to American Red Cross or equivalent organization or donation of over 500 mL of blood in the 56 days prior to the first study drug administration
  • Donation of plasma in the 7 days prior to the first study drug administration
  • Poor peripheral venous access
  • History or significant hypersensitivity to TMP301 or any related products (including excipients of the formulations) as well as severe hypersensitivity reactions (like angioedema) to any drugs
  • Subjects who, in the opinion of the Investigator (or designee; including input from subjects' general practitioner, as applicable), should not participate in this study
  • Subject hospitalized for any reason in a period of 30 days before the start of the study
  • Subjects who are investigational site staff members or directly involved in the conduct of the study and their family members or subjects who are employed by the Sponsor

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Altasciences

    Overland Park, Kansas, 66212

Other trials in United States

About this study

Official title: A Phase 1, Randomized, Placebo-Controlled, Multiple Ascending Dose (MAD) Study To Evaluate The Safety, Tolerability, and Pharmacokinetics of TMP-301 in Healthy Subjects

A PHASE 1, RANDOMIZED, PLACEBO CONTROLLED, MULTIPLE ASCENDING DOSE (MAD) STUDY TO EVALUATE THE SAFETY, TOLERABILITY, AND PHARMACOKINETICS OF TMP-301 IN HEALTHY SUBJECTS.

Read the detailed description

This study will be a randomized, double-blind, placebo controlled, fixed sequence, MAD study. The study will be conducted in a single clinical research unit (CRU). The study will consist of up to 4 cohorts. Subjects will only participate in 1 cohort.

Screening will occur within approximately 28 days prior to the first scheduled study drug administration. Subjects who meet all inclusion criteria and none of the exclusion criteria and who consent to participation will be admitted to the CRU for baseline evaluations prior to dosing.

Subjects will be fasted overnight for 10 hours prior to the morning dose, followed by a 2 hour fast. Subjects are fasted for 2 hours prior to dosing and 2 hours following the evening dose for the cohort 1 (50 mg bid).

Subjects will be discharged from the CRU on Day 18. Subjects will return to the CRU on Day 25 for a follow-up visit and EOS procedures.

Caffeine (100 mg) will be included as probe CYP1A2 substrate in cohort 2 and subsequent cohorts.

The maximum duration of subject participation, including Screening, will be approximately 53 days.

Subjects who terminate the study early will perform follow-up procedures at the time of Early Termination.

Being tested
Cohort 1 - TMP-301, Placebo, Cohort 2 - TMP-301, Cohort 3 - TMP-301, Cohort 4 - TMP-301
Keywords
drug addiction, cocaine use disorder, cocaine dependance, TMP-301, cocaine use, CUD, drug abuse
Medical subject headings
Substance-Related Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Cohort 1 - TMP-301Drug

    50 mg BID Fasted

  • PlaceboDrug

    Multiple ascending dose comparator

  • Cohort 2 - TMP-301Drug

    50 mg QD Fasted

  • Cohort 3 - TMP-301Drug

    50 mg QD Fed

  • Cohort 4 - TMP-301Drug

    25 mg QD Fed

Study groups in NCT06025396
Study groupRoleWhat they receive
Active TMP-301ExperimentalCohort 1= 50mg, capsules form, one capsule - two times per day - total 100mg/day; Cohort 2= 50mg, capsule form, 1 capsules - one time per day- total 50mg/day Cohort 3= 50mg, capsule form, 2 capsules - one time per day- total 100mg/day; Cohort 4 = Dose Titration: 50mg, capsule form, 1 capsules - one time per day - total 50 mg/day - on Days 1-7; and 50 mg, capsule form, 2 capsules - one time per day - total 100mg/day - on Days 8-14; Each cohort duration is 14 days of dosing
Receives: Drug: Cohort 1 - TMP-301; Drug: Cohort 2 - TMP-301; Drug: Cohort 3 - TMP-301; Drug: Cohort 4 - TMP-301
PlaceboPlacebo comparatorCohort 1= Placebo, capsules form, one capsule - two times per day; Cohort 2= Placebo, capsule form, 1 capsules - one time per day; Cohort 3= Placebo, capsule form, 2 capsules - one time per day; Cohort 4 = Dose Titration: Placebo, capsule form, 1 capsules - one time per day - on Days 1-7; and Placebo, capsule form, 2 capsules - one time per day - on Days 8-14; Each cohort duration is 14 days of dosing
Receives: Drug: Placebo

What is being measured

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

  1. Number of Treatment-Emergent Adverse Events (Safety and Tolerability)

    Occurence of Adverse Events, spontaneously reported and identified through clinical laboratory tests, vital sign measurements, ECG, physical exams and psychiatric assessments.

    Measured: Within each cohort from screening to end of the follow up period up to 25 days

Secondary outcomes (15)
  1. To Evaluate the Plasma Area Under the Curve (AUC) 0-12 Hours After First Dose of TMP-301

    0-12 hours post-dose on Day 1, twice daily dosing

    Measured: Day 1

  2. To Evaluate the Plasma Area Under the Curve (AUC) 0-24 Hours After First Dose of TMP-301

    Measured: Day 1

  3. Maximum Plasma Concentration (Cmax) of TMP-301

    Measured: Day 1

  4. Time to Maximum Plasma Concentration (Tmax) of TMP-301

    Measured: Day 1

  5. Plasma Concentration of TMP-301 at 12 Hours After First Dose (C12)

    Measured: Day 1

  6. Plasma Concentration of TMP-301 at 24 Hours After First Dose (C24)

    Measured: Day 1

  7. Maximum Plasma Concentration (Cmax) of TMP-301 at Steady State

    Measured: Day 14

  8. Average Plasma Concentration of TMP-301 at 12 Hours After Last Dose (C12)

    Measured: Day 14

  9. Time to Maximum Plasma Concentration (Tmax) of TMP-301 at Steady State

    Measured: Day 14

  10. Minimum Drug Concentration (Cmin) of TMP-301 at Steady State

    Measured: Day 14

  11. Area Under the Curve (Exposure) at Steady-state( AUC0_tau,ss), Over the Dosing Interval.

    Measured: Day 14

  12. Plasma Concentration of TMP-301 at 24 Hours After Last Dose at Steady State (C24, ss)

    Measured: Day 14

  13. Terminal Half-life (T1/2) of TMP-301

    Measured: Day 14

  14. Apparent Total Plasma Clearance of TMP-301 After Extravascular Administration (CL/F)

    Measured: Day 14

  15. Apparent Volume of Distribution of TMP-301 at Steady State (Vz/F)

    Measured: Day 14

Timeline

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

  1. First posted6 Sep 2023
  2. Study start6 Jan 2023
  3. Primary completion22 Dec 2023
  4. Study completion2 Jan 2024

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Model description
sequential assignment
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06025396
Sponsor's protocol ID
TMP-301-HNV-101
Other IDs
U01DA057118
Status last verified
Jul 2025
First submitted
21 Aug 2023
Last updated
29 Jul 2025
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Cohort 1 - TMP-301, Cohort 2 - TMP-301 and Cohort 3 - TMP-301 in people with Cocaine Use Disorder and Substance Use Disorders, run by Tempero Bio, 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 37 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: finished, as of the sponsor's last update on 29 Jul 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this 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.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 29 Jul 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Treatment-Emergent Adverse Events (Safety and Tolerability) (time frame: Within each cohort from screening to end of the follow up period up to 25 days). 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 29 Jul 2025.

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