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Healthy VolunteersPhase 1NCT03022175

A First in Human Study of the Safety and Tolerability of Single and Multiple Doses of SPR741 in Healthy Volunteers

A Phase 1 study testing SPR741 in people with Healthy Volunteers, run by Spero Therapeutics at 1 site in Australia.

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

The purpose of this study is to assess the safety and tolerability of single and multiple intravenous doses of SPR741 when administered to healthy adult volunteers. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
SPR741
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
64 participants
Where
1 siteAustralia
Study dates
Dec 2016to Sep 2017
Phase
Phase 1
Are there results?
None posted in the registry

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 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy adult males and/or females (of non-child bearing potential), 18 to 55 years of age (inclusive) at the time of screening;
  • BMI ≥ 18.5 and ≤ 29.9 (kg/m2) and weight between 62.5 and 100.0 kg (inclusive) for Cohort 1 only and 55.0 and 100.0 kg (inclusive) for all other cohorts;
  • Medically healthy without clinically significant abnormalities at the screening visit or Day -1, including:
  • Physical examination, vital signs. Vital signs include temperature, heart rate, respiratory rate, and blood pressure;
  • Triplicate ECGs without QTcF interval duration greater than 450 msec obtained as an average from the triplicate screening and pre-dose Day 1 ECGs after at least 5 min in a fully supine quiet rest;
  • Hemoglobin/hematocrit, white blood cell (WBC) count, and platelet count greater than the lower limit of normal range of the reference laboratory;
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  • Creatinine, BUN, ALT and AST equal to or less than the upper limit of normal for the reference laboratory; results of all other clinical chemistry and urine analytes without any clinically significant abnormality.
  • Discussion between the PI and the SMR is encouraged regarding any abnormal laboratory value that is outside of the normal range during the pre-dose period.
  • Be non-smokers (including tobacco, e-cigarettes or marijuana) for at least 1 month prior to participation in the study;
  • Willing and able to provide written informed consent;
  • Be willing and able to comply with all study assessments and adhere to the protocol schedule;
  • Have suitable venous access for drug administration and blood sampling;
  • If female, be of non-childbearing potential (e.g. post-menopausal as demonstrated by FSH or surgical sterilization i.e., tubal ligation or hysterectomy). Provision of documentation is not required for female sterilization, verbal confirmation is adequate; • If male, a willingness not to donate sperm and if engaging in sexual intercourse with a female partner who could become pregnant, a willingness to use a condom in addition to having the female partner use a highly effective method of birth control (such as an intrauterine device, diaphragm, oral contraceptives, injectable progesterone, subdermal implants, or a tubal ligation). This criterion applies to males (and/or female partners) who are surgically sterile and must be followed from the time of first study drug administration until 30 days after the final administration of study drug.

Who cannot join

  • History or presence of significant cardiovascular, pulmonary, hepatic, renal, hematological, gastrointestinal, endocrine, immunologic, dermatologic or neurological disease, including any acute illness or surgery within the past three months determined by the PI to be clinically relevant;
  • History of known or suspected Clostridium difficile infection;
  • Positive urine drug/alcohol testing at screening or check-in (Day -1);
  • Positive testing for HIV, HBsAg or HCV;
  • History of substance abuse or alcohol abuse (defined as greater than 2 standard drinks on average each and every day, where one standard drink is defined as containing 10 g of alcohol and is equivalent to 1 can or stubby of mid-strength beer, 30 ml nip spirits, or 100 ml wine) within the previous 5 years;
  • Use of any prescription medication or any over-the-counter medication, including herbal products and vitamins within 7 days prior to randomization;
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  • Documented hypersensitivity reaction or anaphylaxis to any medication;
  • Donation of blood or plasma within 30 days prior to randomization, or loss of whole blood of more than 500 mL within 30 days prior to randomization, or receipt of a blood transfusion within 1 year of study enrollment;
  • Participation in another investigational clinical trial within 30 days prior to Day 1;
  • Any other condition or prior therapy, which, in the opinion of the PI, would make the volunteer unsuitable for this study, including unable to cooperate fully with the requirements of the study protocol or likely to be non-compliant with any study requirements.

Trial locations and contacts

1 site in 1 country.

Australia1 site
  • CMAX - A division of IDT Australia, Limited

    Adelaide, South Australia, 5000

Other trials in Australia

About this study

Official title: A Two-part, Double-blind, Placebo-controlled, Phase I Study of the Safety, Tolerability and Pharmacokinetics of Single and Multiple Ascending Doses of SPR741 in Healthy Volunteers

The purpose of this study is to assess the safety and tolerability of single and multiple intravenous doses of SPR741 when administered to healthy adult volunteers.

Read the detailed description

This Phase 1 First in Human study is designed to assess the safety, tolerability and pharmacokinetics of single and multiple intravenous doses of SPR741 when administered to healthy adult volunteers. This is a double-blind, placebo controlled, ascending dose, multi-cohort trial. A total of ninety-six healthy volunteers will be enrolled in 12 cohorts. The study will be conducted in two phases: a single ascending dose (SAD) phase, followed by a multiple ascending dose (MAD) phase. In SAD, participants will receive one dose of SPR741 or placebo. In MAD, participants will receive multiple doses of SPR741 or placebo for 14 consecutive days. In both parts, sequential cohorts will be exposed to increasing doses of SPR741.

Being tested
SPR741, Placebo
Keywords
Safety, Tolerability, Pharmacokinetics

What participants receive

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

  • SPR741Drug

    SAD: Double-blind dosing will occur in cohorts 1 through 8. Six participants will receive single doses of SPR741. The dose escalation steps may be altered following review of the safety data upon completion of each cohort.

    MAD: The Safety Management Group will evaluate the safety and tolerability data obtained for the participants in Cohorts 1-5 to determine the appropriate dose level of intravenous q8h dosing of SPR741 to be utilized in the first cohort (Cohort 9) in the MAD. Dosing will commence on the morning of Day 1. Three doses will be administered per day at approximately 8 hours apart. Daily dosing will continue for a total of 14 consecutive days.

  • PlaceboDrug

    Also called 0.9% sodium chloride for injection

    0.9% sodium chloride for injection. SAD: Two participants in each cohort will receive matching placebo. MAD: Two participants in each cohort will receive matching placebo.

Study groups in NCT03022175
Study groupRoleWhat they receive
SPR741ExperimentalSPR741 is a novel chemical entity known as a potentiator that specifically interacts with the outer membrane of Gram-negative bacteria to increase the membrane's permeability. This increase in permeability allows Gram-positive antibiotics to enter and kill the cell. SAD cohorts: Subjects will receive single doses of SPR741 over 60 minute IV infusion. Planned doses to be studied are 5, 15, 50, 100, 200, 400, 600 and 800 mg. MAD cohorts: Subjects will receive SPR741 over 60 minute IV infusion three times a day (TID). Four dose groups will be studied. Doses will be determined by assessing SAD cohort data.
Receives: Drug: SPR741
PlaceboPlacebo comparatorThe placebo used during this study is normal saline (0.9% sodium chloride for injection). SAD: Subjects will receive single infusions of placebo (0.9% sodium chloride for injection) over 60 minutes. MAD: Subjects will receive TID infusions of placebo over 60 minutes for 14 days
Receives: Drug: Placebo

What is being measured

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

  1. Safety measures: adverse events

    The frequency and type of adverse events

    Measured: SAD: 5 to 7 days MAD: 21 to 23 days

  2. Safety measures: clinical laboratory testing

    Clinical laboratory testing - change from baseline to end of study visit

    Measured: SAD: Day -1 to day 7; MAD: Day -1 to day 21

  3. Safety measures: pulse rate

    Change from baseline to end of study visit

    Measured: SAD: Day -1 to day 7; MAD: Day -1 to day 21

  4. Safety measures: EKG

    Change from baseline to end of study visit

    Measured: SAD: 5 to 7 days MAD: 21 to 23 days

  5. Safety measures: respiratory rate

    Change from baseline to end of study visit

    Measured: SAD: Day -1 to day 7; MAD: Day -1 to day 21

  6. Safety measures: blood pressure

    Change from baseline to end of study visit

    Measured: SAD: Day -1 to day 7; MAD: Day -1 to day 21

Secondary outcomes (6)
  1. Individual SPR741 plasma concentration-time curves will be tabulated for each dose cohort.

    • Blood draws for PK: pre-dose (within 10 minutes), 30 minutes following the start of infusion, end of infusion and at 90, 150 minutes, 3, 4, 5, 6 and 8 hours following start of infusion (Day 1 (first dose) and Day 14 (last dose)). Five additional blood draws will be obtained at 10, 12, 24, 36 and 48 hours following the start of infusion of the last dose (morning of Day 14).

    Measured: Day 1 and Day 14

  2. Geometric means will be calculated for Area Under the Curve (AUC)

    Blood draws for PK: pre-dose (within 10 minutes), 30 minutes following the start of infusion, end of infusion and at 90, 150 minutes, 3, 4, 5, 6 and 8 hours following start of infusion (Day 1 (first dose) and Day 14 (last dose)). Five additional blood draws will be obtained at 10, 12, 24, 36 and 48 hours following the start of infusion of the last dose (morning of Day 14).

    Measured: Day 1 and Day 14

  3. Geometric means will be calculated for Concentration maximum (Cmax)

    Blood draws for PK: pre-dose (within 10 minutes), 30 minutes following the start of infusion, end of infusion and at 90, 150 minutes, 3, 4, 5, 6 and 8 hours following start of infusion (Day 1 (first dose) and Day 14 (last dose)). Five additional blood draws will be obtained at 10, 12, 24, 36 and 48 hours following the start of infusion of the last dose (morning of Day 14).

    Measured: Day 1 and Day 14

  4. Geometric means will be calculated for Area Under the Curve (AUC) Urine

    • Urine collection for PK: pre-dose Day 1 sample, total collection over 0-4, 4-8 hours following start of infusion of first dose on Day 1; then total collection over 0-4, 4-8, 8-12, 12-24 and 24-48 hours following start of infusion of the last dose (Day 14).

    Measured: Day 1 and Day 14

  5. Geometric means will be calculated for Concentration maximum (Cmax) Urine

    • Urine collection for PK: pre-dose Day 1 sample, total collection over 0-4, 4-8 hours following start of infusion of first dose on Day 1; then total collection over 0-4, 4-8, 8-12, 12-24 and 24-48 hours following start of infusion of the last dose (Day 14).

    Measured: Day 1 and Day 14

  6. Mean SPR741 plasma concentration-time curves will be tabulated for each dose cohort.

    • Blood draws for PK: pre-dose (within 10 minutes), 30 minutes following the start of infusion, end of infusion and at 90, 150 minutes, 3, 4, 5, 6 and 8 hours following start of infusion (Day 1 (first dose) and Day 14 (last dose)). Five additional blood draws will be obtained at 10, 12, 24, 36 and 48 hours following the start of infusion of the last dose (morning of Day 14).

    Measured: Day 1 and 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 posted16 Jan 2017 (estimated)
  2. Study startDec 2016
  3. Primary completionJul 2017
  4. Study completionSep 2017

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
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
64 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03022175
Sponsor's protocol ID
SPR741-101s
Status last verified
Oct 2017
First submitted
16 Dec 2016
Last updated
5 Oct 2017
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Eckburg PB, Lister T, Walpole S, Keutzer T, Utley L, Tomayko J, Kopp E, Farinola N, Coleman S. Safety, Tolerability, Pharmacokinetics, and Drug Interaction Potential of SPR741, an Intravenous Potentiator, after Single and Multiple Ascending Doses and When Combined with beta-Lactam Antibiotics in Healthy Subjects. Antimicrob Agents Chemother. 2019 Aug 23;63(9):e00892-19. doi: 10.1128/AAC.00892-19. Print 2019 Sep.

    PubMed 31262767

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing SPR741 in people with Healthy Volunteers, run by Spero Therapeutics at 1 site in Australia.

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 10 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 5 Oct 2017. 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 Australia. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Safety measures: adverse events (time frame: SAD: 5 to 7 days MAD: 21 to 23 days). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03022175, which also lists 1 linked publication.

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 5 Oct 2017.

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