Study to Evaluate the Safety and Efficacy of SPR001 in Subjects With Classic Congenital Adrenal Hyperplasia

March 28, 2025 updated by: Spruce Biosciences

A 3-Month Phase 2 Study to Evaluate the Safety and Efficacy of SPR001 in Subjects With Classic Congenital Adrenal Hyperplasia

This is a Phase 2 study of SPR001 for the treatment of classic CAH that will provide 12 weeks of open-label treatment to eligible subjects.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a Phase 2 study of SPR001 for the treatment of classic CAH that will provide 12 weeks of open-label treatment to eligible subjects. To be eligible for this study, an individual must either have completed Study SPR001-201 or meet eligibility criteria for SPR001-naïve subjects. The expected duration of study participation for each subject is up to approximately 5 months. This includes a screening period of ≤30 days, a treatment period of 12 weeks, and a safety follow-up period of 30 days.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
11

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Orange, California, United States, 92868
        • Spruce Biosciences Clinical Site
      • San Diego, California, United States, 92123
        • Spruce Biosciences Clinical Site
    • Georgia
      • Atlanta, Georgia, United States, 30046
        • Spruce Biosciences Clinical Site
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Spruce Biosciences Clinical Site
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • Spruce Biosciences Clinical Site
    • Minnesota
      • Minneapolis, Minnesota, United States, 55414
        • Spruce Biosciences Clinical Site
    • Nevada
      • Las Vegas, Nevada, United States, 89148
        • Spruce Biosciences Clinical Site
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Spruce Biosciences Clinical Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Is approved by the Sponsor's Medical Monitor
  • Is on a stable regimen of glucocorticoid replacement for ≥30 days before baseline that is expected to remain stable throughout the study
  • If screening for this study occurs >3 months after the subject's final follow-up visit in Study SPR001-201, the subject will have serum 17-OHP measured at screening.
  • Agrees to follow contraception guidelines
  • Is able to understand all study procedures and risks involved and provides written informed consent indicating willingness to comply with all aspects of the protocol

Exclusion Criteria:

  • Experienced a clinically significant AE considered at least possibly related to SPR001 in Study SPR001-201
  • If screening for this study occurs >3 months after the subject's final follow-up visit in Study SPR001-201, the subject will be screened for any clinically significant unstable medical condition, medically significant illness, or chronic disease occurring within 30 days of screening
  • Is at increased risk of suicide
  • Clinically significant depression or anxiety at screening or baseline
  • Clinically significant abnormal clinical or laboratory assessments must be discussed with the Medical Monitor to determine eligibility for this study.
  • Subjects who routinely work overnight shifts require Medical Monitor approval for enrollment
  • Females who are pregnant or lactating
  • Use of any other investigational drug within 30 days or 5 half-lives before screening
  • Use of prohibited concomitant medications (including rosiglitazone, testosterone, and strong inhibitors and/or inducers of CYP3A4) within 30 days or 5 half-lives of baseline. Medications metabolized by CYP3A4, 2C8, 2C9, or 2C19, especially those that are sensitive substrates or substrates with narrow therapeutic ranges should be discussed on a case-by-case basis with the Medical Monitor.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: SPR001
SPR001 at Dose A
Drug: SPR001
Open label SPR001

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The Incidence of Treatment-emergent Adverse Events (Safety and Tolerability) in Subjects With CAH
Time Frame: Over 12 weeks
Incidence of treatment-emergent adverse events including any serious adverse events, dose-limiting toxicities, and adverse events leading to discontinuation of study drug.
Over 12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change From Baseline in 17-hydroxyprogesterone (17-OHP)
Time Frame: Week 12
Change from Baseline to Week 12 in 17-OHP following dosing of SPR001 in subjects with CAH. 17-OHP is measured in patient serum sample. Results are expressed as mean percent change from baseline. Reductions in 17-OHP are indicators of better disease control.
Week 12
Change From Baseline in Androstenedione (A4)
Time Frame: Week 12
Change from Baseline to Week 12 in androstenedione (A4) following dosing of SPR001 in subjects with CAH. A4 is measured in patient serum. Results are expressed as mean percent change from baseline. Reductions in A4 are indicators of better disease control.
Week 12
Change From Baseline in Adrenocorticotropic Hormone (ACTH)
Time Frame: Week 12
Change from Baseline to Week 12 in adrenocorticotropic hormone (ACTH) following dosing of SPR001 in subjects with CAH. ACTH is measured in patient serum. Results are expressed as mean percent change from baseline. Reductions in ACTH are indicators of better disease control.
Week 12

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Spruce Biosciences

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Chief Medical Officer, Spruce Biosciences

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 6, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 8, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 9, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 11, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 25, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 27, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 1, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 28, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SPR001-202

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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