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Prostate CancerPhase 1NCT04470843

Impact of Acetazolamide in Reducing Referred Postoperative Pain

A Phase 1 study testing Acetazolamide in people with Prostate Cancer and Men, run by Medical College of Wisconsin 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

Robotic assisted laparoscopic prostatectomy (RALP) is the standard treatment for prostate cancer, due to the benefits of decreased blood loss and length of stay.The procedure involves removing a man's prostate using a minimally invasive robotic approach under the guidance of a surgeon. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer, Men
What is being tested?
Acetazolamide
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
33 participants
Where
1 siteUnited States
Study dates
22 Aug 2018to 31 Mar 2021
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 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male patients ≥18 years of age undergoing robotic-assisted prostatectomy

Who cannot join

  • Patients with renal insufficiency with serum creatinine >2.0 mg/dl
  • Patients with renal transplant
  • Patients with pre-existing metabolic acidosis
  • Patients with chronic obstructive pulmonary disease
  • Patients with hepatic disease
  • Patients with central nervous system disorders
Show all 12Show fewer
  • Patients with hematological disease history
  • Patients with pre-existing electrolyte abnormalities
  • Patients with hypovolemia
  • Patients with lithium or diuretic usage
  • Patients with sulfonamides allergy
  • Patients with American Society of Anesthesiologists physical status 4 or 5

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Froedtert Memorial Lutheran Hospital

    Milwaukee, Wisconsin, 53226

Other trials in United States

About this study

Official title: Impact of Acetazolamide in Reducing Referred Postoperative Pain After Robotic Assisted Laparoscopic Prostatectomy

Robotic assisted laparoscopic prostatectomy (RALP) is the standard treatment for prostate cancer, due to the benefits of decreased blood loss and length of stay.The procedure involves removing a man's prostate using a minimally invasive robotic approach under the guidance of a surgeon. In order to gain sufficient access, carbon dioxide (CO2) is used to fill the surgical space in a process termed insufflation. Carbon dioxide is a mainstay in laparoscopic procedures because it is cost-effective, noncombustible and readily excreted via the respiratory system in healthy patients.

Insufflation with CO2, however, has been linked to post-operative referred pain secondary to peritoneal acidosis.This acidosis is suspected to be due to the formation of carbonic acid from the CO2 insufflation.Peritoneal acidosis, and its associated post-operative referred pain, may not be adequately treated with the current standard pain control regimen.

Conditions
Prostate Cancer, Men
Being tested
Acetazolamide, Placebo
Keywords
Prostatectomy, Acetazolamide, Postoperative Pain, Prostate Cancer
Medical subject headings
Prostatic Neoplasms, Multiple Endocrine Neoplasia Type 1, Pain, Postoperative

What participants receive

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

  • AcetazolamideDrug

    Being that adequate pain control is essential to recovery in the post-operative setting, efforts have been made to address this pain at its root. Prior studies have demonstrated that preoperative administration of acetazolamide decreased post-operative referred pain in the immediate post-surgical period.

  • PlaceboOther

    Group 2 (placebo): Patients undergoing RALP with the peri-operative use of 10 mL normal saline as placebo.

Study groups in NCT04470843
Study groupRoleWhat they receive
AcetazolamideActive comparatorGroup 1 (acetazolamide): Patients undergoing RALP with the peri-operative use of one-time 250 mg dose of acetazolamide
Receives: Drug: Acetazolamide
PlaceboPlacebo comparatorGroup 2 (placebo): Patients undergoing RALP with the peri-operative use of 10 mL normal saline as placebo.
Receives: Other: Placebo

What is being measured

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

  1. Visual Analogue Scale (VAS) 10-cm lines anchored at the ends by words that define the bounds of various pain dimensions. The patient is asked to place a vertical mark on the scale to indicate the level of intensity of his pain.

    The primary outcome to be assessed is the absolute change in VAS score both in general and at the shoulder tip. This will be measured as the difference between the VAS score obtained pre-operatively, when first responsive after surgery in the post anesthesia care unit (PACU), immediately prior to leaving PACU, and throughout the hospital stay per standard of care.

    Δ VAS = Postoperative VAS - Preoperative VAS VAS is a testing technique for measuring subjective or behavioral phenomena (as pain or dietary consumption) in which a subject selects from a gradient of alternatives (as from "no pain" to "worst imaginable pain" or from "every day" to "never") arranged in linear fashion -abbreviation VAS

    Measured: 24 hours

Timeline

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

  1. First posted14 Jul 2020
  2. Study start22 Aug 2018
  3. Primary completion31 Mar 2021
  4. Study completion31 Mar 2021

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
Single blind
Who is masked
Participant
Enrolment
33 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04470843
Sponsor's protocol ID
PRO00031299
Status last verified
Sep 2022
First submitted
27 Aug 2018
Last updated
23 Sep 2022
Results posted
No
Data monitoring committee
No
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 study testing Acetazolamide in people with Prostate Cancer and Men, run by Medical College of Wisconsin 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 1 inclusion and 12 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 23 Sep 2022. 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?

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?

Visual Analogue Scale (VAS) 10-cm lines anchored at the ends by words that define the bounds of various pain dimensions. The patient is asked to place a vertical mark on the scale to indicate the level of intensity of his pain. (time frame: 24 hours). 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 23 Sep 2022.

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