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Postsurgical PainPhase 1/2NCT04203537

Study Evaluating the Safety, Efficacy and Pharmacokinetics of CA-008 (Vocacapsaicin)

A Phase 1/2 study testing CA-008 in people with Postsurgical Pain, run by Concentric Analgesics at 4 sites 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

In the pilot (Part A) of this study, multiple doses of CA-008 (vocacapsaicin) were evaluated for safety, tolerability, and PK. Doses were then selected for the expanded part (Part B) of the study, where CA-008 was compared to placebo. Patients had serial assessments of safety, PK, and drug effect. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Postsurgical Pain
What is being tested?
CA-008
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
193 participants
Where
4 sitesUnited States
Study dates
4 Dec 2019to 26 Oct 2020
Phase
Phase 1/2
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 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Scheduled elective Total Knee Arthroplasty (TKA) under spinal anesthesia
  • Aged 18-80 years old
  • ASA physical class 1, 2, or 3
  • BMI </= 42 kg/m2
  • Generally healthy

Who cannot join

  • Concurrent condition requiring analgesic treatment during study period
  • Opioid tolerant
  • Known allergy to capsaicin or other study medication
  • Use of prohibited medications

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Legent Orthopedic Hospital

    Carrollton, Texas, 75006

  • First Surgical Hospital

    Houston, Texas, 77401

  • Lotus Clinical Reserach, LLC

    Pasadena, California, 91105

  • Plano Surgical Hospital

    Plano, Texas, 75093

Other trials in United States

About this study

Official title: A Two-Part, Phase 1/2, Randomized, Double-blind, Placebo-Controlled, Adaptive Safety, Pharmacokinetics and Preliminary Efficacy Study of CA-008 in Patients Undergoing Total Knee Arthroplasy

In the pilot (Part A) of this study, multiple doses of CA-008 (vocacapsaicin) were evaluated for safety, tolerability, and PK. Doses were then selected for the expanded part (Part B) of the study, where CA-008 was compared to placebo. Patients had serial assessments of safety, PK, and drug effect.

Read the detailed description

Not provided

Being tested
CA-008, Placebo
Medical subject headings
Pain, Postoperative

What participants receive

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

  • CA-008Drug

    Also called vocacapsaicin

    Local administration during surgery

  • PlaceboDrug

    Local administration during surgery

Study groups in NCT04203537
Study groupRoleWhat they receive
CA-008 36 mgActive comparatorSingle administration (0.3 mg/mL concentration)
Receives: Drug: CA-008
CA-008 60 mgActive comparatorSingle administration (0.5 mg/mL concentration)
Receives: Drug: CA-008
CA-008 90 mgActive comparatorSingle administration (0.75 mg/mL concentration)
Receives: Drug: CA-008
PlaceboPlacebo comparatorSingle administration
Receives: Drug: Placebo

What is being measured

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

  1. Pain Intensity Scores

    Mean area under the curve (AUC) of the Numeric Rating Scale (NRS) weighted sum of pain intensity scores (at rest) from 0-10 where 0 is no pain and 10 is the worst pain imaginable for CA-008 compared to placebo. AUC is calculated using the standard trapezoidal rule from serial measures of NRS taken every 4 hours from 0-96 hours following surgery and twice daily from 96h to Day 15

    Measured: 0 to Day 15 post dose

Secondary outcomes (1)
  1. Total Opioid Consumption

    CA-008 versus placebo comparison, total opioid consumption in oral morphine equivalents

    Measured: 0 to Day 15 post dose

Timeline

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

  1. First posted18 Dec 2019
  2. Study start4 Dec 2019
  3. Primary completion26 Oct 2020
  4. Study completion26 Oct 2020

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Model description
Part A: dose ascending, placebo-controlled Part B: randomized, double-blind, placebo-controlled, parallel design
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
193 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04203537
Sponsor's protocol ID
CA-PS-208
Status last verified
Apr 2024
First submitted
16 Dec 2019
Last updated
8 May 2024
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing CA-008 in people with Postsurgical Pain, run by Concentric Analgesics at 4 sites 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 5 inclusion and 4 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 8 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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 combined 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.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 12 Jan 2022). 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?

Pain Intensity Scores (time frame: 0 to Day 15 post dose). 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 8 May 2024.

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