anti10a Levels in Women Treated With LMWH in the Postpartum Period

NCT ID: NCT02856295

Last Updated: 2022-11-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

136 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-11-20

Study Completion Date

2022-08-01

Brief Summary

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The aim of this study is to compare between anti-10a levels in postpartum women receiving different prophylactic doses of LMWH: one group with LMWH doses adjusted by the women's weight and the second group receiving 1mg/kg to a maximum dose of 120 mg

Detailed Description

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pregnancy and postpartum period are associated with increased risk of thromboembolism. this risk is further increased in women with thrombophilia.

This risk is higher in the postpartum period compared with pregnancy period, especially the risk for pulmonary embolism (PE). The American College Of Obstetrics and Gynecologists, The American college of chest physicians and The Royal College of obstetricians and gynecologists recommend using low molecular weight heparin during the postpartum period in women with thrombophilia and women with risk factor for developing thromboembolism. there is no specific guidelines regarding the best protocol based on the level of anti-10 a.

This study will compare between two protocols based on anti-10a levels.

Conditions

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Venous Thromboembolism

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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clexane according to weight group

clexane dose adjusted for woman's weight according to: weight \< 90 kg - 40mg, 91-130kg - 60 mg, 131-170kg - 80mg, \>170kg-100mg.

Group Type ACTIVE_COMPARATOR

clexane (LMWH)

Intervention Type DRUG

to compare tow doses of clexane for preventing VTE in postpartum women

clexane mg per kg

clexane dose of 1mg/kg up to 120 mg

Group Type ACTIVE_COMPARATOR

clexane (LMWH)

Intervention Type DRUG

to compare tow doses of clexane for preventing VTE in postpartum women

Interventions

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clexane (LMWH)

to compare tow doses of clexane for preventing VTE in postpartum women

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* postpartum women supposed to receive LMWH according to obstetric indications

Exclusion Criteria

* known allergy to clexane
* active bleeding postpartum
* thrombocytopenia \< 75000
* recent cerebrovascular accident / transient ischemic attack (\<4 weeks)
* glomerular filtration rate) \< 30 ml/min)
* active liver disease
* malignant hypertension (systolic \> 200 mmHg, diastolic\> 120 mmHg)
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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HaEmek Medical Center, Israel

OTHER

Sponsor Role lead

Responsible Party

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Zohar Nachum

MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Zohar Nachum, M.D

Role: STUDY_DIRECTOR

Emek Medical Center

Locations

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Emek medical center

Afula, , Israel

Site Status

Countries

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Israel

References

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Bremme KA. Haemostatic changes in pregnancy. Best Pract Res Clin Haematol. 2003 Jun;16(2):153-68. doi: 10.1016/s1521-6926(03)00021-5.

Reference Type RESULT
PMID: 12763484 (View on PubMed)

Hellgren M. Hemostasis during normal pregnancy and puerperium. Semin Thromb Hemost. 2003 Apr;29(2):125-30. doi: 10.1055/s-2003-38897.

Reference Type RESULT
PMID: 12709915 (View on PubMed)

Practice bulletin no. 124: inherited thrombophilias in pregnancy. Obstet Gynecol. 2011 Sep;118(3):730-740. doi: 10.1097/AOG.0b013e3182310c6f.

Reference Type RESULT
PMID: 21860314 (View on PubMed)

Scifres CM, Macones GA. The utility of thrombophilia testing in pregnant women with thrombosis: fact or fiction? Am J Obstet Gynecol. 2008 Oct;199(4):344.e1-7. doi: 10.1016/j.ajog.2008.04.051. Epub 2008 Jun 24.

Reference Type RESULT
PMID: 18572147 (View on PubMed)

Gherman RB, Goodwin TM, Leung B, Byrne JD, Hethumumi R, Montoro M. Incidence, clinical characteristics, and timing of objectively diagnosed venous thromboembolism during pregnancy. Obstet Gynecol. 1999 Nov;94(5 Pt 1):730-4. doi: 10.1016/s0029-7844(99)00426-3.

Reference Type RESULT
PMID: 10546719 (View on PubMed)

Chang J, Elam-Evans LD, Berg CJ, Herndon J, Flowers L, Seed KA, Syverson CJ. Pregnancy-related mortality surveillance--United States, 1991--1999. MMWR Surveill Summ. 2003 Feb 21;52(2):1-8.

Reference Type RESULT
PMID: 12825542 (View on PubMed)

Heit JA, Kobbervig CE, James AH, Petterson TM, Bailey KR, Melton LJ 3rd. Trends in the incidence of venous thromboembolism during pregnancy or postpartum: a 30-year population-based study. Ann Intern Med. 2005 Nov 15;143(10):697-706. doi: 10.7326/0003-4819-143-10-200511150-00006.

Reference Type RESULT
PMID: 16287790 (View on PubMed)

Pomp ER, Lenselink AM, Rosendaal FR, Doggen CJ. Pregnancy, the postpartum period and prothrombotic defects: risk of venous thrombosis in the MEGA study. J Thromb Haemost. 2008 Apr;6(4):632-7. doi: 10.1111/j.1538-7836.2008.02921.x. Epub 2008 Jan 31.

Reference Type RESULT
PMID: 18248600 (View on PubMed)

McColl MD, Walker ID, Greer IA. The role of inherited thrombophilia in venous thromboembolism associated with pregnancy. Br J Obstet Gynaecol. 1999 Aug;106(8):756-66. doi: 10.1111/j.1471-0528.1999.tb08395.x.

Reference Type RESULT
PMID: 10453824 (View on PubMed)

Bates SM, Greer IA, Middeldorp S, Veenstra DL, Prabulos AM, Vandvik PO. VTE, thrombophilia, antithrombotic therapy, and pregnancy: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2012 Feb;141(2 Suppl):e691S-e736S. doi: 10.1378/chest.11-2300.

Reference Type RESULT
PMID: 22315276 (View on PubMed)

American College of Obstetricians and Gynecologists. ACOG Committee Opinion: safety of Lovenox in pregnancy. Obstet Gynecol. 2002 Oct;100(4):845-6.

Reference Type RESULT
PMID: 12387283 (View on PubMed)

Bain E, Wilson A, Tooher R, Gates S, Davis LJ, Middleton P. Prophylaxis for venous thromboembolic disease in pregnancy and the early postnatal period. Cochrane Database Syst Rev. 2014 Feb 11;(2):CD001689. doi: 10.1002/14651858.CD001689.pub3.

Reference Type RESULT
PMID: 24519568 (View on PubMed)

Bates SM, Greer IA, Hirsh J, Ginsberg JS. Use of antithrombotic agents during pregnancy: the Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy. Chest. 2004 Sep;126(3 Suppl):627S-644S. doi: 10.1378/chest.126.3_suppl.627S.

Reference Type RESULT
PMID: 15383488 (View on PubMed)

Shapiro NL, Kominiarek MA, Nutescu EA, Chevalier AB, Hibbard JU. Dosing and monitoring of low-molecular-weight heparin in high-risk pregnancy: single-center experience. Pharmacotherapy. 2011 Jul;31(7):678-85. doi: 10.1592/phco.31.7.678.

Reference Type RESULT
PMID: 21923455 (View on PubMed)

Fox NS, Laughon SK, Bender SD, Saltzman DH, Rebarber A. Anti-factor Xa plasma levels in pregnant women receiving low molecular weight heparin thromboprophylaxis. Obstet Gynecol. 2008 Oct;112(4):884-9. doi: 10.1097/AOG.0b013e31818638dc.

Reference Type RESULT
PMID: 18827132 (View on PubMed)

Haj R, Massalha M, Eitam H, Kassabri R, Yefet E, Nachum Z. Comparison of postpartum anti-Xa levels following enoxaparin administration to prevent venous thromboembolism using 2 weight-based protocols: a randomized controlled trial. Am J Obstet Gynecol MFM. 2023 Aug;5(8):100988. doi: 10.1016/j.ajogmf.2023.100988. Epub 2023 May 6.

Reference Type DERIVED
PMID: 37156466 (View on PubMed)

Other Identifiers

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EMC59-12

Identifier Type: -

Identifier Source: org_study_id

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