Efficacy and Safety of the CollaRx Bupivacaine Implant Compared to the ON-Q Painbuster Following Abdominal Hysterectomy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00749749
Recruitment Status : Completed
First Posted : September 9, 2008
Last Update Posted : April 30, 2013
Premier Research Group plc
Information provided by (Responsible Party):

September 8, 2008
September 9, 2008
April 30, 2013
September 2008
December 2008   (Final data collection date for primary outcome measure)
Total amount of opioid rescue analgesia used [ Time Frame: 0 to 24 hours postoperatively ]
Same as current
Complete list of historical versions of study NCT00749749 on Archive Site
  • Total amount of opioid rescue analgesia used [ Time Frame: 0 to 48 hours postoperatively ]
  • The total amount of opioid rescue analgesia used [ Time Frame: 0 to 96 hours postoperatively ]
  • Pain intensity rating on the Visual Analogue Scale (VAS) [ Time Frame: At 1, 1.5, 2, 3, 6, 9, 12, 18, 24, 36, 48, 72 and 96 hours after Time 0 ]
  • Pain intensity on a 4-point scale [ Time Frame: At 30 minutes and 1, 1.5, 2, 3, 6, 9, 12, 18, 24, 36, 48, 72 and 96 hours after Time 0 ]
  • Pain relief on a 5-point scale [ Time Frame: At 30 minutes and 1, 1.5, 2, 3, 6, 9, 12, 18, 24, 48, 72 and 96 hours after Time 0 ]
  • Patient global evaluation of study treatment on a 5-point scale [ Time Frame: At 96 hours after Time 0 ]
  • Changes in vital sign measurements [ Time Frame: Through 96 hours after Time 0 ]
  • The incidence of treatment emergent Adverse Events [ Time Frame: Through 30 days after surgery ]
  • Patient questionnaire [ Time Frame: 96 hours postoperatively ]
Same as current
Not Provided
Not Provided
Efficacy and Safety of the CollaRx Bupivacaine Implant Compared to the ON-Q Painbuster Following Abdominal Hysterectomy
A Phase II, Randomized, Single-dose, Unblinded Study to Compare the Efficacy and Safety of the CollaRx Bupivacaine Implant With the ON-Q PainBuster Post-op Pain Relief System in Women Following Abdominal Hysterectomy
The purpose of this study is to determine whether the CollaRx Bupivacaine Implant is safe and effective in reducing the amount of narcotic pain medication needed to control pain during the first 96 hours after abdominal hysterectomy when compared to the ON-Q PainBuster Post-op Pain Relief System.

Hysterectomy is the second most common surgery among women in the United States (US). Abdominal hysterectomy surgery may be performed to treat benign tumors, such as fibroids, heavy periods, painful periods and chronic pelvic pain. The most common route for performing hysterectomy is through an incision in the abdominal wall; however, about 20% are performed vaginally.Laparoscopic assisted vaginal hysterectomy is performed when warranted.

Bupivacaine is a local anesthetic (pain medication) that has an established safety profile. Collagen is a protein that is found in all mammals. The CollaRx Bupivacaine implant is a thin flat sponge made out of collagen that comes from cattle tendons and contains bupivacaine. When inserted into a surgical site, the collagen breaks down and bupivacaine is released at the site but very little is absorbed into the blood stream. The high levels of bupivacaine at the surgical site may result in less pain for several days after surgery.

The ON Q system consists of 1 elastometric pump with a fill volume of 270 mL containing 0.25% bupivacaine; 1 soaker catheter measuring 12.5 cm in size; and a fill port, tubing, clamp, filter and flow restrictor. The pump provides positive pressure and is portable. It may be attached to the patient's dressing or placed in a carrying pouch. The catheter is inserted directly into the surgical wound providing a continuous flow of bupivacaine into the wound. A capillary flow restricting orifice located at the end of the tubing controls the flow rate.

This study will compare the total narcotic use in patients with the CollaRx Bupivacaine Implant with the total narcotic use in patients with the ON Q PainBuster Post op Pain Relief System after abdominal hysterectomy.

Phase 2
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Pain, Postoperative
  • Device: Bupivacaine Collagen Sponge (CollaRx Bupivacaine Implant)
    The bupivacaine collagen sponge contains 70mg Type I bovine collagen and 50mg bupivacaine hydrochloride
    Other Name: CollRx Bupivacaine Implant
  • Device: ON-Q PainBuster Post-op Pain relief System
    5 mL/hr per catheter of 0.25% bupivacaine (12.5 mg) for 72 hours(total dose 360 mL [900 mg])
  • Experimental: 1
    Three Bupivacaine sponges placed at different levels within the surgical cavity; one deep within the vault, one at the incision line in the peritoneum and one at the dermal incision line.
    Intervention: Device: Bupivacaine Collagen Sponge (CollaRx Bupivacaine Implant)
  • Active Comparator: 2
    Insertion of the ON-Q system catheter into the deep subcutaneous space overlying the fascia.
    Intervention: Device: ON-Q PainBuster Post-op Pain relief System
Cusack SL, Minkowitz HS, Kuss M, Jaros M, Hemsen L. A randomized, multicenter, pilot study comparing the efficacy and safety of a bupivacaine-collagen implant (XaraColl(®)) with the ON-Q PainBuster(®) Post-op Pain Relief System following open gynecological surgery. J Pain Res. 2012;5:453-61. doi: 10.2147/JPR.S37310. Epub 2012 Nov 2.

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
December 2008
December 2008   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Must be a woman who is ≥ 18 and ≤ 75 years of age.
  • Has a body mass index (BMI) > 19 and < 40 kg/m2.
  • Has planned an elective total abdominal hysterectomy for reasons other than malignancies (such as uterine adenocarcinoma, cervical cancer or leiomyosarcoma) to be performed according to standard surgical technique using a standard incision and under general anesthesia with the following caveats:

    • Laparoscopic procedures or supraumbilical or Maylard incisions will not be allowed.
    • A nonlaparoscopic incision for benign nonhysterectomy gynecological procedures (such as myomectomy or adnexal surgery) is acceptable if the surgical indication is not to treat pelvic pain.
    • No concomitant vaginal procedures such as anterior and posterior colporrhaphy (A&P repairs) are allowed. An abdominal urethropexy and an incidental appendectomy will be allowed.
  • Has a risk classification of I, II or III according to the American Society of Anesthesiologists (ASA).
  • Is nonpregnant (negative pregnancy test at Screening and Day 0 before surgery) and nonlactating.
  • Is free of other physical or mental conditions that, in the opinion of the Investigator, may confound quantification of postoperative pain resulting from the abdominal hysterectomy.
  • Has the ability to read, understand and comply with the study procedures and the use of the pain scales; is deemed capable of operating a patient controlled analgesia (PCA) device; and is able to communicate meaningfully with the study staff.
  • Must voluntarily sign and date an informed consent form (ICF), approved by an Institutional Review Board (IRB), prior to the conduct of any study specific procedures.
  • Must be able to fluently speak and understand English and be able to provide meaningful written informed consent for the study.

Exclusion Criteria:

  • Has known hypersensitivity to amide local anesthetics, opioids, bovine products or to inactive ingredients of the test article or reference product.
  • Has cardiac arrhythmias or atrioventricular (AV) conduction disorders.
  • Concomitantly uses other amide local anesthetics.
  • Concomitantly uses antiarrhythmics (eg, amiodarone), propranolol or strong/moderate cytochrome P450 (CYP) 3A4 inhibitors or inducers (eg, macrolide antibiotics and grapefruit juice).
  • Has used long acting analgesics within 24 hours of surgery. Short acting analgesics such as acetaminophen may be used on the day of surgery but are subject to preoperative restrictions for oral intake.
  • Has used aspirin or aspirin containing products within 7 days of surgery. Aspirin at a dose of ≤ 325 mg is allowed for cardiovascular prophylaxis if the patient has been on a stable dose regimen for ≥ 30 days prior to Screening.
  • Has undergone major surgery within 3 months of the scheduled hysterectomy.
  • Requires the use of Seprafilm® or other absorbable adhesion barriers for the scheduled hysterectomy.
  • Requires any additional surgical procedures either related or unrelated to the abdominal hysterectomy during the same hospitalization (except for the specific allowed procedures noted in the Inclusion Criteria).
  • Is required to receive neuraxial (spinal or epidural) opioid analgesics during the surgery.
  • Has known or suspected history of alcohol or drug abuse or misuse within 3 years of Screening or evidence of tolerance or physical dependency on opioid analgesics or sedative hypnotic medications.
  • Has used opioids or tramadol on an extended daily basis (> 7 days) prior to surgery. Patients who, in the Investigator's opinion, are developing opioid tolerance are to be excluded.
Sexes Eligible for Study: Female
18 Years to 75 Years   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
United States
Not Provided
Not Provided
Premier Research Group plc
Study Director: David Prior Innocoll
April 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP