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Showing 1–22 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: osmotic dilators Clear all
Completed Not applicable Interventional Results available

Cook Balloon vs Dilapan-S for Outpatient Cervical Ripening

NCT05062343
View directory record Official record
Conditions
Induced; Birth
Interventions
Dilapan-S, Cook Cervical Ripening Balloon
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 26, 2023 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

OPIOID Study - Pain With Osmotic Dilators

NCT03710239
View directory record Official record
Conditions
Abortion in Second Trimester
Interventions
Dilapan-S, Laminaria
Device
Lead sponsor
Albany Medical College
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Mar 15, 2020 · Synced Sep 5, 2026, 6:27 PM EDT
Completed No phase listed Observational

Dilapan-S/Dilasoft E-Registry in Induction of Labor

NCT02318173
View directory record Official record
Conditions
Labour Onset and Length Abnormalities, Labor; Forced or Induced, Affecting Fetus or Newborn
Interventions
Dilapan-S
Device
Lead sponsor
Medicem International CR s.r.o.
Industry
Eligibility
Female only
Enrollment
444 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
2
States / cities
New York, New York • Galveston, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Sep 5, 2026, 6:27 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Cervical Preparation With Mifepristone Prior to Osmotic Dilators

NCT03714880
View directory record Official record
Conditions
Second Trimester Abortion
Interventions
Mifepristone 200 MG, Placebo Oral Tablet
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jun 7, 2022 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Results available

Induction of Labor in Women With Unfavorable Cervix: Dilapan Versus Foley Bulb

NCT02899689
View directory record Official record
Conditions
Pre-induction Dilation of Cervix
Interventions
Dilapan, Foley Catheter
Device
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
419 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
2
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced Sep 5, 2026, 6:27 PM EDT
Recruiting Not applicable Interventional

Ripening Approaches for Prompt Induction and Delivery - Sequential Versus Concurrent Dilapan-S and Misoprostol to Achieve Vaginal Delivery (RAPID-DS)

NCT07717502
View directory record Official record
Conditions
Nulliparous Women Who Scheduled for Labor Induction, Pregnancy
Interventions
Sequential Cervical Ripening, Inpatient Combined Cervical Ripening
Combination Product
Lead sponsor
Ochsner Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cervical Preparation Before Dilation and Evacuation

NCT01751087
View directory record Official record
Conditions
Abortion, Induced
Interventions
Mifepristone, misoprostol, Osmotic dilators, placebo
Other · Drug · Device
Lead sponsor
Planned Parenthood League of Massachusetts
Other
Eligibility
18 Years and older · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
7
States / cities
San Francisco, California • Chicago, Illinois • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2016 · Synced Sep 5, 2026, 6:27 PM EDT
Withdrawn Not applicable Interventional

Mifepristone Versus Osmotic Dilators in Conjunction With Misoprostol for Cervical Preparation Prior to D&E at 14-19 Weeks

NCT02679092
View directory record Official record
Conditions
Legally Induced Abortion Without Mention of Complication
Interventions
Misoprostol, Mifepristone, Hygroscopic cervical dilators
Drug · Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
San Jose, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Phase 4 Interventional Results available

Addition of Buprenorphine to Paracervical Block for Pain Control During Osmotic Dilator Insertion

NCT04254081
View directory record Official record
Conditions
Procedural Pain, Buprenorphine, Adjuvants, Anesthesia, Dilation and Evacuation, Analgesics
Interventions
Buprenorphine 0.15 MG, Lidocaine 1% Injectable Solution
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 31, 2023 · Synced Sep 5, 2026, 6:27 PM EDT
Recruiting Phase 2 Interventional

Paracervical Block With Combined Ketorolac and Lidocaine for Osmotic Dilator Placement

NCT07487246
View directory record Official record
Conditions
Pain Management, Abortion, Second Trimester Abortion, Dilation and Evacuation
Interventions
Ketorolac, oral ibuprofen, Placebo, Lidocaine HCl 1%, Saline
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Phase 4 Interventional Results available

Gabapentin for Pain Control After Osmotic Dilator Insertion and Prior to D&E Procedure: a Randomized Controlled Trial

NCT03080493
View directory record Official record
Conditions
Abortion, Induced, Cervical Preparation, Pain
Interventions
Gabapentin 600mg, Placebo oral capsule, acetaminophen/codeine and ibuprofen
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2020 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Phase 3 Interventional Results available

Mifepristone Versus Osmotic Dilator Insertion for Cervical Preparation Prior to Surgical Abortion at 15-18 Weeks

NCT01436279
View directory record Official record
Conditions
Cervical Preparation
Interventions
Mifepristone, osmotic dilators
Drug · Device
Lead sponsor
Boston University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Results available

Pre-Operative Effects of Mifepristone on Dilation and Evacuation Services

NCT01862991
View directory record Official record
Conditions
Legally Induced Abortion Without Mention of Complication
Interventions
Hygroscopic cervical dilators, Misoprostol, Intra-amniotic digoxin, Mifepristone
Other · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Sep 5, 2026, 6:27 PM EDT
Recruiting Not applicable Interventional

RCT of Cervical Ripening Double Ballon Catheter Prior to Dilation and Evacuation.

NCT07200115
View directory record Official record
Conditions
Cervical Preparation Prior to Dilation and Evacuation
Interventions
Cervical Ripening Double Balloon (CRDB) Catheter, Osmotic Dilators
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 5, 2026, 6:27 PM EDT
Recruiting Not applicable Interventional

Cervical Ripening Balloons for Same-Day Cervical Prep

NCT06964373
View directory record Official record
Conditions
Dilation and Evacuation
Interventions
Cervical Ripening Balloon, Osmotic Dilators
Device
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Phase 4 Interventional Results available

Overnight Pain Treatment Investigating Opioids vs. Nonopioids

NCT03545893
View directory record Official record
Conditions
Abortion Second Trimester
Interventions
Ibuprofen 600 mg, OxyCODONE 5 Mg Oral Tablet
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 24, 2020 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Results available

Value of Mifepristone in Cervical Preparation Prior to Dilation and Evacuation 19-24 Weeks

NCT01615731
View directory record Official record
Conditions
Abortion, Induced
Interventions
Mifepristone, Hygroscopic cervical dilators, Misoprostol, Intra-amniotic digoxin
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Results available

Mifepristone Versus Laminaria Insertion for Cervical Preparation Prior to Surgical Abortion at 14-16 Weeks

NCT00986921
View directory record Official record
Conditions
Abortion
Interventions
mifepristone 200 mg, osmotic dilator insertion
Drug · Device
Lead sponsor
Boston University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 30, 2014 · Synced Sep 5, 2026, 6:27 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cervical Preparation for Same-Day Dilation & Evacuation

NCT06799052
View directory record Official record
Conditions
Abortion, Second Trimester, Procedural Pain, Procedural Complication
Interventions
Transcervical single-balloon catheter, Synthetic osmotic dilators
Device
Lead sponsor
Boston Medical Center
Other
Eligibility
16 Years and older · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 5, 2026, 6:27 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Paracervical Block for Pain Control With Osmotic Dilator Placement

NCT02354092
View directory record Official record
Conditions
Abortion Late, Pain
Interventions
Local anesthetic for tenaculum placement, Sham, Paracervical Block, Dilator Placement, Post-procedural assessment, Preprocedural pain control
Procedure · Behavioral · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
2
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 10, 2019 · Synced Sep 5, 2026, 6:27 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Transcervical Balloon Compared to Osmotic Dilators Prior to Surgical Abortion

NCT05099991
View directory record Official record
Conditions
Abortion, Second Trimester
Interventions
Single Foley Balloon, Dilapan-S
Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2024 · Synced Sep 5, 2026, 6:27 PM EDT
Terminated Not applicable Interventional Results available

Pilot Study of the Addition of Osmotic Dilators to Preparation Prior to Labor Induction Abortion

NCT00855842
View directory record Official record
Conditions
Abortion, Induced
Interventions
osmotic dilator insertion
Device
Lead sponsor
Boston University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 7, 2011 · Synced Sep 5, 2026, 6:27 PM EDT