Efficacy and Safety in a Randomised Acute Pain Study of MR308: STARDOM2.
Efficacy and Safety in a Randomised Acute Pain Study of MR308: STARDOM2.
The MR308-3502 study is a multicenter double-blind, randomised, placebo- and active
 comparator-controlled study in female subjects to evaluate the efficacy and safety of MR308
 with acute pain after TAH or STAH (total or subtotal abdominal hysterectomy).
This is a multicenter double-blind, randomised, placebo- and active comparator-controlled
 study in female subjects to evaluate the efficacy and safety of MR308 with acute pain after
 total or subtotal abdominal hysterectomy (TAH or STAH).

 The screening Visit (Visit 1) can take place up to 28 days before the planned TAH or STAH.
 The surgery will be performed at Visit 2. Visit 2 consists of three different sections, a
 part before the surgery, the surgery and post surgery. On the next Day (Visit 3) subjects
 will qualify for further participation by regular measurements of their pain. Subjects
 meeting all eligibility criteria, such as defined pain levels, will be randomised to one of
 six treatment groups and be given IMPs for 120h. Subjects who will not be randomised are
 screen failures and will be given standard care as per local practice.

 Visits 4, 5, 6 ,7 and 8, one to five days after randomisation will be performed to record
 efficacy and safety parameters.

 The last dose of IMP should be taken by the subject about 120h after the initial dose and
 before Visit 8 (Completion/Discontinuation Visit) is performed.

 The Adverse Event (AE) Follow up Visit (Visit 9) is the last study visit and should not be
 done earlier than seven days after the subject's last dose of IMP. It can be performed by
 telephone.
Inclusion Criteria:

 1. Female subjects ≥ 18 years on the day of consent.

 2. Willing and able to provide written informed consent for this study.

 3. Subjects are scheduled to have a total or subtotal abdominal hysterectomy under
 general anasethesia via a Pfannenstiel incision.

 4. The elective procedure (total or subtotal hysterectomy with or without
 salpingo-oophorectomy) must be for benign conditions within 28 days of screening.
 Subjects with stage 0 carcinoma in situ of cervix, endometrial hyperplasia or
 clinically staged 1A or 1B endometrial cancer are allowed to participate.

 5. American Society Anaesthesiology physical status of I or II.

 6. If a female is of child-bearing potential, she must be using highly effective methods
 of contraception throughout the study, not breastfeeding, and have negative pregnancy
 tests prior to receiving IMP. A highly effective method of birth control is defined as
 one which results in a low failure rate (i.e. less than 1% per year) when used
 consistently and correctly such as sterilisation, implants, injectables, combined oral
 contraceptives, some IUDs (Intrauterine Device, hormonal), sexual abstinence or
 vasectomised partner).

 7. Good general health as judged by Investigators on the basis of medical history and
 physical examination.

 8. Willingness to comply with the study procedures and requirements.

 Additional Inclusion Criteria after Surgery:

 1. Abdominal hysterectomy completed without any immediate complication.

 2. Tolerating oral fluids, no uncontrolled nausea/vomiting and ready to take oral
 analgesia.

 3. The subject is alert and calm, spontaneously pays attention to caregiver, e.g. RASS =
 0 (Sessler et al., 2002 & Ely et al., 2003).

 4. Subjects will be capable to sit up from supine, stand up from a sitting position and
 walk 10 meters without assistance in the morning of the day following surgery.

 5. Subjects with moderate or severe pain (qualifying PI-VAS score ≥ 45mm and < 70mm or ≥
 70mm and ≤ 90mm) as a result of a surgical procedure (abdominal hysterectomy) under
 general anaesthesia. This must be measured within a maximum of 24 hours after leaving
 the recovery room and subjects can only be randomised on the day after surgery, after
 cessation of the post-operative analgesia.

 Exclusion Criteria:

 1. Any abnormal laboratory value that is clinically significant in the opinion of
 Investigator that would compromise the safety of the subject in the study.

 2. Any recent history of frequent nausea or vomiting, dizziness within the last 3 months
 regardless of etiology.

 3. Subjects having any medical condition or treatment that is either a warning or
 contraindication as per the SmPC of tramadol (e.g. selective serotonin reuptake
 inhibitors (SSRIs), serotonin-norepinephrine reuptake inhibitors (SNRIs), tricyclic
 antidepressants, MAO inhibitors (within 14 days before taking IMP), antipsychotics,
 anticonvulsant and other seizure threshold-lowering medicinal products), celecoxib
 (e.g. increased risk of post-operative bleeding, active peptic ulceration, GI bleeding
 or inflammatory bowel disease) or paracetamol.

 4. Known sensitivity and/or contraindication to tramadol, celecoxib, paracetamol,
 sulfonamides, opioids, NSAIDS, COX-2 inhibitors, or related compounds or formulation
 excipients as well as severe hypersensitivity reactions (e.g. anaphylactic shock,
 bronchospasm, angioedema) to any drugs.

 5. Subjects who are known to have had inadequate pain relief from paracetamol, tramadol
 or celecoxib.

 6. Subjects requiring any medication which is prohibited as per section prohibited
 medication.

 7. Subjects who are in the Investigator's opinion considered at increased risk of
 operative (those associated with the surgical procedure and general anaesthesia) and
 post-operative complications, e.g. excessive post-operative bleeding, infection.

 8. Any history of drug or alcohol abuse, misuse, physical or psychological dependence,
 mood changes, sleep disturbance and functional capacity which have an impact on pain
 perception.

 9. Significant neurological or psychiatric disorders including mental instability
 (unrelated to the pain) that could interfere with pain assessment; other pre-existing
 or new non-abdominal/pelvic pain that might impair the assessment of the nociceptive
 pain.

 10. Any medical history of significant and/or inadequately controlled cardiovascular
 (uncontrolled high blood pressure, high risk of cardiovascular events, severe heart
 failure), pulmonary, hematologic, (including coagulopathy/bleeding disorders),
 neurological (e.g. subjects with epilepsy or those susceptible to seizures), liver
 disease (e.g. severe hepatic impairment), kidney disease (e.g. serum creatinine level
 greater than 1.5 times the upper limit of normal, impaired renal function in subjects
 taking diuretics, ACE-inhibitors, or angiotensin II antagonists), endocrine,
 immunologic, dermatologic painful conditions or any other conditions that may
 compromise the ability of the subject to participate in the study or might interfere
 with drug absorption, distribution, metabolism or excretion.

 11. Previous randomisation in this study.

 12. Subjects who participated in a clinical research study involving a new chemical entity
 or an experimental drug within 30 days of study entry (defined as the start of the
 Screening Period).

 13. Subjects who were treated regularly with opioid analgesic or NSAIDs within 30 days
 prior to screening or who have received a long-acting NSAID within three days prior to
 the start of the surgery.

 14. Subjects who are incapable of complying with the protocol.

 15. Epidural or spinal anaesthesia or infiltration of the wound with an infusion of a
 local anaesthetic agent is not allowed. A single perioperative dose is allowed.

 16. History or ongoing chronic pelvic inflammatory disease or painful endometriosis.

 17. History of advanced gynaecological cancers.

 Additional Exclusion Criteria after Surgery:

 1. Serious complication during surgery and up to randomisation, including:

 -  Post-operative primary and secondary bleed that cannot be controlled.

 -  Subjects who have not had the abdominal hysterectomy surgery completed as
 planned.

 2. If in the Investigator's opinion, there are any factors that may affect compliance
 with the protocol.

 3. Subject clinical need for antiemetics (apart from standard perioperative practice as
 defined in the protocol) or any other medication which is prohibited as per section
 prohibited medication.

 4. Subjects who have received any analgesic medication other than perioperative analgesia
 as described in the protocol.

 5. Any concerns that renal function has deteriorated, e.g. a laboratory parameter,
 profound hypotension, poor urine output or excessive bleeding during surgery.