NCT05759364

Brief Summary

The cervix consists of connective tissue, smooth muscle, and parasympathetic innervation. Smooth muscle makes up about 15% of the cervix, is mainly found under the internal opening of the neck. Papaverine and its derivatives are musculotropic antispasmodic drugs that directly affect smooth muscle, the mechanism is to reduce the spasm of smooth muscle resulting in relaxation. Studies on the pharmacokinetics of this drug show that it has a half-life of 0.5-2 hours and its effect is apparent within 10 minutes. Administration of antispasmodic drugs during childbirth is common in developing and developed countries. Based on previous studies, the use of these drugs during childbirth may lead to a faster opening of the cervix. Possible uses of Papaverine include, administered separately or in combination with other treatments such as rupture of amniotic membranes and/or Oxytocin administration. According to some studies, administration of Papaverine at birth can be used as a preventive or therapeutic strategy in cases of prolonged labor or first stage over 12 hours as defined in some studies. According to Kochran et al, who included 13 experiments with 1995 participants, the use of antispasmodic drugs shortened the first stage of labor by an average of 74.34 minutes. In 6 experiments that included 820 patients, the administration of antispasmodic drugs during labor increases the rate of cervical opening by an average of 0.61 cm per hour. In addition to the muscle relaxation effect, studies have been published on the analgesic effect of PAPAVERINE for example in patients with urinary stones. In the present study, the investigators want to test the effect of administering PAPAVERINE IV 80 mg within half an hour before the insertion of a catheter balloon for cervical ripening on the Bishop score after catheter removal between the two groups.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
128

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started May 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 14, 2023

Completed
22 days until next milestone

First Posted

Study publicly available on registry

March 8, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

May 15, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2024

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2025

Completed
Last Updated

June 29, 2023

Status Verified

June 1, 2023

Enrollment Period

11 months

First QC Date

February 14, 2023

Last Update Submit

June 27, 2023

Conditions

Keywords

Induction of laborRipenning of the cervixCatheter balloonAntispasmodic

Outcome Measures

Primary Outcomes (2)

  • The delta Bishop score

    The difference between the bishop score (a score of the cervix ripening) before and after the insertion of Foley catheter. Higher delta Bishop scores means better outcome

    1 year

  • Pain during insertion of the catheter

    Pain during insertion of the catheter based on visual scale analoug (0-10) score, . The minimum is 0, the maximum is 10. Higher score means worse outcome

    1 year

Secondary Outcomes (9)

  • Induction-delivery interval

    2 years

  • Success

    2 years

  • Use of other ripening method

    2 years

  • Insertion-extraction of the catheter interval

    2 years

  • Delivery method

    2 years

  • +4 more secondary outcomes

Study Arms (2)

Intervention group- IV PAPAVERINE 80 mg

ACTIVE COMPARATOR

Administration of IV PAPAVERINE 80 mg in 100 ml of saline, once within half an hour before inserting a single-balloon balloon catheter

Drug: IV Papaverine 80 mg

Conrol group- Placebo group.

PLACEBO COMPARATOR

Administration of 100 ml of saline within half an hour before the insertion of a single-balloon catheter

Drug: Placebo

Interventions

Opium alkaloid antispasmodic drug

Also known as: Papaverine Hydrochloride
Intervention group- IV PAPAVERINE 80 mg

Placebo

Also known as: Saline
Conrol group- Placebo group.

Eligibility Criteria

Age18 Years - 50 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsObstetrical research
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Women with a singleton pregnancy, over the age of 18, pregnant at term (ie between weeks 37-42)
  • Bishop score is less than 6, for which a medical decision was made regarding the induction of labor by catheter
  • Vertex presentation, intact membranes
  • Viable fetus

You may not qualify if:

  • Twin pregnancy
  • Women after caesarean section
  • Severe fetal anomalies
  • Women with vaginismus or vulvodynia
  • Women with psychiatric illnesses including depression and schizophrenia
  • Contraindication for vaginal delivery
  • A woman who is unable to sign a consent form
  • Women are known for supraventricular tachycardia
  • Women with tachycardia over 100 or arrhythmia
  • Known sensitivity to one of the components of the drug
  • Liver disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Galilee Medical Center

Nahariya, Northern District, Israel

RECRUITING

Related Publications (6)

  • Rohwer AC, Khondowe O, Young T. Antispasmodics for labour. Cochrane Database Syst Rev. 2012 Aug 15;(8):CD009243. doi: 10.1002/14651858.CD009243.pub2.

    PMID: 22895986BACKGROUND
  • Singh KC, Jain P, Goel N, Saxena A. Drotaverine hydrochloride for augmentation of labor. Int J Gynaecol Obstet. 2004 Jan;84(1):17-22. doi: 10.1016/s0020-7292(03)00276-5.

    PMID: 14698825BACKGROUND
  • Ibrahim MI, Alzeeniny HA, Ellaithy MI, Salama AH, Abdellatif MA. Drotaverine to improve progression of labor among nulliparous women. Int J Gynaecol Obstet. 2014 Feb;124(2):112-7. doi: 10.1016/j.ijgo.2013.08.013. Epub 2013 Nov 7.

    PMID: 24299975BACKGROUND
  • Madhu C, Mahavarkar S, Bhave S. A randomised controlled study comparing Drotaverine hydrochloride and Valethamate bromide in the augmentation of labour. Arch Gynecol Obstet. 2010 Jul;282(1):11-5. doi: 10.1007/s00404-009-1188-8. Epub 2009 Jul 31.

    PMID: 19644697BACKGROUND
  • Snir N, Moskovitz B, Nativ O, Margel D, Sandovski U, Sulkes J, Livne PM, Lifshitz DA. Papaverine hydrochloride for the treatment of renal colic: an old drug revisited. A prospective, randomized study. J Urol. 2008 Apr;179(4):1411-4. doi: 10.1016/j.juro.2007.11.053. Epub 2008 Mar 4.

    PMID: 18289563BACKGROUND
  • Abu Shqara R, Nakhleh Francis Y, Goldinfeld G, Haddad Y, Sgayer I, Lavinsky M, Lowenstein L, Frank Wolf M. Papaverine prior to catheter balloon insertion for labor induction: a randomized controlled trial. Am J Obstet Gynecol MFM. 2024 Jul;6(7):101388. doi: 10.1016/j.ajogmf.2024.101388. Epub 2024 May 31.

MeSH Terms

Conditions

Acute PainLabor Pain

Interventions

PapaverineSodium Chloride

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

BenzylisoquinolinesAlkaloidsHeterocyclic CompoundsOpiate AlkaloidsIsoquinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Study Officials

  • Maya Frank Wolf, MD

    Galilee Medical Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Raneen Abu Shqara, MD

CONTACT

Maya Frank Wolf, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
The participant will be blinded to the type of therapy they recieved. Inverstiagators will be blinded. Outcome assessor, including the physican that will assess the bishop score will be blinded Only the nurse that gives the therapy won't be blinded.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Double blinded randomized placebo controlled trial Group 1: will get IV PAPAVERINE 80 mg in 100 ml saline Group 2: will get IV 100 ml saline
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Maternal-fetal medicine

Study Record Dates

First Submitted

February 14, 2023

First Posted

March 8, 2023

Study Start

May 15, 2023

Primary Completion

April 1, 2024

Study Completion

April 1, 2025

Last Updated

June 29, 2023

Record last verified: 2023-06

Data Sharing

IPD Sharing
Will not share

Locations