Please assess the completion status of the following clinical trial:

Trial Title: Acetaminophen's Antinociceptive Effect When Associated With N-Acetylcysteneine

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE1
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Male~* Between 18 and 45 years old~* Without treatment during the 7 days before inclusion specially no use of antalgic and anti-inflammatory~* Cooperation and understanding enough to conform to the study obligations -Having given free, informed written consent~* Affiliated at system of French social security~* Inscription or acceptation of inscription in the national register of volunteers involved in trials.~Exclusion Criteria:~* Patient with one or many contraindication for the administration of the trial's products,~* Patient that have taken N-acetylcysteine as bronchial thinner during the last 3 days,~* Patient with medical or surgical history judged by the investigator or his representative as being not compatible with the clinical trial~* Patient with disease progression during inclusion,~* Patient with excessive consumption of alcohol, tobacco (+ than 10 cigarette/day), coffee, tea or drinks with caffeine (equivalent to more than 4 cup a day) or any addiction to drugs,~* Patient with a heat pain mean threshold during training higher or equal to 46.5°C,~* Patient who participated in another clinical trial, located in exclusion period or received benefits \> 4500 euros during 12 months before the beginning of trial,~* Patient with cooperation and understanding that do not allow him to follow the trial,~* Patients with minor or under guardianship,~* No affiliation at system of French social security

- Gender: MALE
- Minimum Age: 18 Years
- Maximum Age: 45 Years
- Healthy Volunteers: t

Study Arms:
- acetaminophen (Type: EXPERIMENTAL): The purpose of this study is to assess the effectiveness of acetaminophen in association with N-acetylcysteine.~The objective of this study is to evaluate if the association in healthy volunteers of acetaminophen and N-acétylcystéine~1. - decrease the antinociceptive effect of acetaminophen in comparison to a group control~2. - and if this antinociceptive effect may depend of the genetic polymorphism of GSH enzyme
- placebo (Type: PLACEBO_COMPARATOR): 1. - decrease the antinociceptive effect of acetaminophen in comparison to a group control~2. - and if this antinociceptive effect may depend of the genetic polymorphism of GSH enzyme

Based on this trial design, predict the completion outcome and termination type (if applicable).