An interventional study of Accelerated medical clearance and surgery in Hip Fractures and Myocardial Injury, sponsored by Population Health Research Institute. Recruiting at 77 sites in 20 countries. Open to participants aged 45 Years and older. Per ClinicalTrials.gov, last updated 2026-08-26.
Sponsored by Population Health Research Institute · Not applicable, Interventional, and Treatment
The HIP ATTACK-2 trial is a multicentre, international, parallel group randomized controlled trial to determine whether accelerated surgery for hip fracture in patients with acute myocardial injury is superior to standard care in reducing death at 90 days after randomization. The trial will also assess secondary outcomes at 90 days after randomization: inability to independently walk 3 metres, time to first mobilization (first standing and first full weight bear), composite and individual assessment of major complications (e.g., mortality, non-fatal myocardial infarction, acute congestive heart failure, and stroke), delirium, length of stay, pain, and quality of life.
842 studies on the registry are indexed under Hip Fractures; 165 are open to participants now.
This study's planned enrollment of 1,100 is above the median of 86 across 533 interventional studies indexed under Hip Fractures.
Browse Hip Fractures studies →Population Health Research Institute is the lead sponsor of 115 studies on the registry; 26 are open to participants now.
Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Accelerated medical clearance and targeted arrival to the operating room within 6 hours of eligibility criteria met.
Other: Accelerated medical clearance and surgery
Hip fracture repair and surgical care according to treating institution guidelines.
Rapid medical clearance with targeted arrival to the operating room within 6 hours of eligibility criteria criteria met.
All cause mortality
Death due to all causes
Time frame: Within 90 days post randomization
Ability to independently walk 3 meters
Ability to independently walk 3 meters (10 feet) or across a room without human assistance. Patients who require a cane or walker, but not human assistance, will be classified as able to walk independently. Patients who require assistance to get out of a chair, but can walk independently once they get up, will be classified as able to walk independently.
Time frame: Within 90 days post randomization
Composite of major complications
Composite includes vascular and nonvascular mortality, non-fatal myocardial infarction, acute congestive heart failure, and stroke.
Time frame: Within 90 days post randomization
Vascular mortality
Any death with a vascular cause and includes those deaths following a myocardial infarction, sudden cardiac arrest, stroke, cardiac revascularization procedure (i.e., percutaneous coronary intervention \[PCI\] or coronary artery bypass graft \[CABG\] surgery), heart failure, pulmonary embolus, cardiovascular hemorrhage, or deaths due to an unknown cause
Time frame: Within 90 days post randomization
Nonvascular mortality
Any death due to a clearly documented non-vascular cause.
Time frame: Within 90 days post randomization
Myocardial Infarction
Diagnosis of MI according to 4th universal definition of myocardial infarction
Time frame: Within 90 days post randomization
Acute Congestive Heart Failure
at least one clinical sign(s) or symptom(s) (e.g elevated jugular venous pressure, respiratory rales/crackles, crepitations, hypoxia, tachypnea or presence of S3) with at least one of the following: 1. radiographic findings (i.e., vascular redistribution, interstitial pulmonary edema, or frank alveolar pulmonary edema) or point of care ultrasound findings (i.e., bilateral B-lines, bilateral pleural effusion, elevated jugular venous pressure, dilated inferior vena cava with respiratory variation less than 50%) OR 2. heart failure treatment implemented with diuretics with documented clinical improvement.
Time frame: Within 90 days post randomization
Stroke
Either - 1. a new focal neurological deficit thought to be vascular in origin with signs or symptoms lasting more than 24 hours or leading to death; or 2. a new focal neurological deficit thought to be vascular in origin with signs or symptoms lasting less 24 hours with a positive neuroimaging consistent with a stroke
Time frame: Within 90 days post randomization
Time from randomization to hospital discharge
Length of hospital stay from randomization to hospital discharge
Time frame: Within 90 days post randomization
Delirium
1. Patient meets the criteria for delirium on any in-person 3D-CAM or CAM administered; OR 2. Positive history of delirium in the 7 days after randomization based on the review of hospital health records.
Time frame: Within 7 days and 90 days post randomization
Moderate to severe pain
Moderate to severe pain is defined as any pain score ≥3 on 10 points scale.
Time frame: Within 7 days and 90 days post randomization
New clinically important atrial fibrillation or flutter
Documentation of atrial fibrillation or atrial flutter of any duration on an ECG, telemetry tracing, or rhythm strip and results in angina, congestive heart failure, symptomatic hypotension, or is followed by initiation or a dose increase of a rate controlling drug, antiarrhythmic drug, or electrical cardioversion.
Time frame: Within 90 days post randomization
Cardiac revascularization procedure
Revascularization procedures including coronary artery bypass graft or percutaneous coronary intervention surgery.
Time frame: Within 90 days post randomization
Venous thromboembolism
Venous pulmonary embolism or deep venous thrombosis
Time frame: Within 90 days post randomization
Pulmonary embolism
The diagnosis of PE requires any one of the following: 1. A high probability ventilation/perfusion lung scan, 2. An intraluminal filling defect of a segmental or larger artery on a helical CT scan, 3. An intraluminal filling defect on pulmonary angiography, or 4. A positive diagnostic test for DVT (e.g., positive compression ultrasound) and one of the following: A. Non-diagnostic (i.e., low or intermediate probability) ventilation/perfusion lung scan B. Non-diagnostic (i.e., subsegmental defects or technically inadequate study) helical CT scan.
Time frame: Within 90 days post randomization
Proximal deep venous thrombosis
The diagnosis of proximal DVT requires: 1. Thrombosis involving the popliteal vein or more proximal veins for leg DVT and axillary or more proximal veins for arm DVT, AND 2. Evidence of vein thrombosis by any one of the following: 1\. A persistent intraluminal filling defect on contrast venography, 2. Noncompressibility of one or more venous segments on B mode compression ultrasonography, or 3. A clearly defined intraluminal filling defect on contrast enhanced computed tomography.
Time frame: Within 90 days post randomization
Infection
Pathologic process caused by the invasion of normally sterile tissue or fluid or body cavity by pathogenic or potentially pathogenic organisms.
Time frame: Within 90 days post randomization
Sepsis
Based on the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) criteria,20 sepsis will require a quick Sequential Organ Failure Assessment (qSOFA) Score ≥2 points or patients requiring vasopressors/inotropes due to infection. The qSOFA includes the following items and scoring system: 1. Altered mental status (1 point), 2. Systolic blood pressure (SBP)of 100 mm Hg or less (1 point), and 3. Respiratory rate (RR) of 22 breaths/min or more (1 point).
Time frame: Within 90 days post randomization
Pneumonia
Acute infection of the pulmonary parenchyma that is associated with at least one sign or symptom of lower respiratory acute infection (e.g., cough, pleuritic chest pain) or acute systemic illness (e.g., fever, chills, confusion, hypoxemia); accompanied by the presence of an acute infiltrate/consolidation on a chest radiograph or auscultatory findings consistent with pneumonia (such as crackles and/or localized rales) for which there is no other explanation.
Time frame: Within 90 days post randomization
Bleeding
Life threatening, major or critical organ bleeding
Time frame: Within 90 days post randomization
Hip reoperation
Any second surgical procedure undertaken on the fractured hip being followed in the study, for any reason (e.g. infection, implant failure, periprosthetic fracture, wound dehiscence, etc.), after it has been initially repaired and the patient has left the operating room.
Time frame: Within 90 days post randomization
Prosthetic hip dislocation
Any acute dislocation of a prosthetic femoral head from within its intended concentric location within the acetabulum. The acetabulum may or may not be resurfaced/replaced.
Time frame: Within 90 days post randomization
Implant failure
Any mechanical issue related to the integrity of any component of the hip implant which requires a surgical procedure to correct. This includes: loss of implant fixation to bone (either with or without associated periprosthetic fracture); or broken, disassociated, or dislocated implant components.
Time frame: Within 90 days post randomization
Peri-prosthetic fracture
Fracture through any part of either the femur and/or acetabulum to which a hip implant used for hip repair/reconstruction was fixed.
Time frame: Within 90 days post randomization
Acute kidney injury
An increase in the serum creatinine concentration from the pre-randomization value of ≥26.5 μmol/L (≥0.3 mg/dL) within 48 hours after randomization, or an increase of ≥50% within 7 days after randomization.
Time frame: Within 90 days post randomization
Acute renal failure resulting in dialysis
New requirement for dialysis (i.e., use of hemodialysis machine or peritoneal dialysis apparatus in patients without a requirement for dialysis prior to randomization).
Time frame: Within 90 days post randomization
Hospital re-admission
Hospital re-admission following discharge from index hospitalization
Time frame: Within 90 days post randomization
Length of critical care stay
Length of critical care stay
Time frame: Within 90 days post randomization
Length of rehabilitation stay
Length of rehabilitation stay
Time frame: Within 90 days post randomization
Days alive at home
Days alive at home are the number of days patients spend at their usual residence without, during that day, being admitted to a hospital or visiting an emergency department or urgent-care centre. Patients lose days alive at home if 1. patients go to an emergency department or urgent-care centre; 2. they become inpatients at a hospital or rehabilitation or convalescence-care facility; or 3. they die.
Time frame: Within 90 days post randomization
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Plan to share: No — The Population Health Research Institute (PHRI) is the sponsor of this trial. The PHRI believes the dissemination of clinical research results is vital and sharing of data is important. PHRI prioritizes access to data analyses to researchers who have worked on the trial for a significant duration, have played substantial roles, and have participated in raising the funds to conduct the trial. PHRI balances the length of the research study, and the intellectual and financial investments that made it possible with the need to allow wider access to the data collected. Data will be disclosed only upon request and approval of the proposed use of the data by a Review Committee.
No publications or documents are linked to this record.
Started Nov 2021 (actual). Primary completion is estimated for Aug 2027, 69 months after the start.
Of 221 non-industry interventional studies with no phase under Hip Fractures, half reached primary completion within 27 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 55. This study's planned 69 months is above that.
Counting every sponsor, half of 237 studies reached it within 29 months; a quarter within 10 and three quarters within 57.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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