Calf Deep Vein Thrombosis Treatment Trial

Stopped early · Phase 4 · Has a placebo group

Conditions studied: Deep Vein Thrombosis

In brief

The primary objective is to evaluate whether apixaban is more effective in treating patients with isolated calf vein thrombosis (DVT) than serial imaging of the DVT for preventing thrombus spread, pulmonary embolism (PE) and/or recurring DVTs.

Key facts

Study ID

NCT03590743

Run by

Mayo Clinic

People needed

5

Starts

2019-02-19

Expected to finish

2019-06-03

Last updated by the study team

2020-03-25

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Age range: ≥ 18 years.
• Both males and females
• Confirmed acute calf vein thrombosis confined to either the deep (posterior tibial, anterior tibial, or peroneal) or muscular (gastrocnemius or soleal) veins.
• Negative serum or urine pregnancy test done (within 2 weeks) prior to randomization, for women of childbearing potential only. Note: A woman of childbearing potential (WOCBP) is defined as any female who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) and is not postmenopausal. Menopause is defined as 12 months of amenorrhea in a woman over age 45 years in the absence of other biological or physiological causes.
• Ability to provide written informed consent.

You may not qualify if…

• Any of the following because this study involves an investigational agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and newborn are unknown:
• Pregnant women
• Nursing women
• Men or women of childbearing potential who are unwilling to employ adequate contraception Note: Women of child bearing potential must agree to follow instructions for method(s) of contraception for the duration of treatment with study drug(s) plus 33 days after finishing the last dose.
• Males who are sexually active with WOCBP must agree to follow instructions for method(s) of contraception for the duration of treatment with study drug(s) plus 93 days after finishing the last dose.
• Azoospermic males and WOCBP who are continuously not heterosexually active are exempt from contraceptive requirements. However they must still undergo pregnancy testing as described in this section.
• Note: Investigators shall counsel WOCBP and male subjects who are sexually active with WOCBP on the importance of pregnancy prevention and the implications of an unexpected pregnancy Investigators shall advise WOCBP and male subjects who are sexually active with WOCBP on the use of highly effective methods of contraception. Highly effective methods of contraception have a failure rate of < 1% when used consistently and correctly.
• At a minimum, subjects must agree to the use of one method of highly effective contraception as listed below:
• HIGHLY EFFECTIVE METHODS OF CONTRACEPTION
• Male condoms with spermicide
• Hormonal methods of contraception including combined oral contraceptive pills, vaginal ring, injectables, implants and intrauterine devices (IUDs) such as Mirena® by WOCBP subject or male subject's WOCBP partner.
• Female partners of male subjects participating in the study may use hormone based contraceptives as one of the acceptable methods of contraception since they will not be receiving study drug,
• IUDs such as ParaGard®,
• Tubal ligation
• Vasectomy.
• Complete Abstinence* *Complete abstinence is defined as complete avoidance of heterosexual intercourse and is an acceptable form of contraception for all study drugs. Acceptable alternate methods of highly effective contraception must be discussed in the event that the subject chooses to forego complete abstinence
• Acute co-existing proximal DVT (popliteal, femoral, iliac veins or IVC), pulmonary embolism, splanchnic vein thrombosis, cerebral venous sinus thrombosis within the past 3 months for whom anticoagulation therapy is indicated.
• Age < 18 years.
• Continuous treatment with therapeutic anticoagulant for more than 72 hours pre-randomization.
• Contraindication to anticoagulant therapy
• Significant kidney disease. Creatinine clearance < 25 ml/min using the Cockcroft-Gault equation: glomerular filtration rate (GFR) = (140-age) * (Wt in kg) * (0.85 if female) / (72 * Cr). (within last four weeks)
• Significant liver disease (e.g. acute hepatitis, chronic active hepatitis, cirrhosis) or alanine transaminase (ALT) (or AST) > 3 x upper limit of normal (ULN). (within last four weeks)
• Platelet count < 50 x109/L.(within last four weeks)
• Life expectancy < 12 months.
• Current active bleeding.

Where it is running

• Mayo Clinic in Rochester — Rochester, Minnesota, United States
• Mayo Clinic — Eau Claire, Wisconsin, United States
• Mayo Clinic — La Crosse, Wisconsin, United States

Full record on ClinicalTrials.gov

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